[X86][SSE] Change CTTZ vector lowering to cttz(x) = ctpop(~x & (x - 1))

[RKSimon]

Summary

This patch changes the vector CTTZ lowering from:

cttz(x) = ctpop((x & -x) - 1)

to:

cttz(x) = ctpop(~x & (x - 1))

Not only does this make better use of the PANDN instruction, but it also matches the LegalizeDAG method which should allow us to remove the x86 specific code at some point in the future (we need to fit some issues with the bitcasted logic ops and CTPOP lowering first).

[craig.topper]

LGTM

llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

static SDValue LowerCTLZ(SDValue Op, const X86Subtarget &Subtarget,
   Op = DAG.getNode(ISD::XOR, dl, OpVT, Op,
                    DAG.getConstant(NumBits - 1, dl, OpVT));
 
   if (VT == MVT::i8)
     Op = DAG.getNode(ISD::TRUNCATE, dl, MVT::i8, Op);
   return Op;
 }
 
-static SDValue LowerCTTZ(SDValue Op, SelectionDAG &DAG) {
+static SDValue LowerCTTZ(SDValue Op, const X86Subtarget &Subtarget,
+                         SelectionDAG &DAG) {
   MVT VT = Op.getSimpleValueType();
   unsigned NumBits = VT.getScalarSizeInBits();
   SDLoc dl(Op);
 
   if (VT.isVector()) {
     SDValue N0 = Op.getOperand(0);
     SDValue Zero = DAG.getConstant(0, dl, VT);
 
-    // lsb(x) = (x & -x)
-    SDValue LSB = DAG.getNode(ISD::AND, dl, VT, N0,
-                              DAG.getNode(ISD::SUB, dl, VT, Zero, N0));
+    // Decompose 256-bit ops into smaller 128-bit ops.
+    if (VT.is256BitVector() && !Subtarget.hasInt256())
+      return Lower256IntUnary(Op, DAG);
 
-    // cttz_undef(x) = (width - 1) - ctlz(lsb)
+    // cttz_undef(x) = (width - 1) - ctlz(x & -x)
     if (Op.getOpcode() == ISD::CTTZ_ZERO_UNDEF) {
       SDValue WidthMinusOne = DAG.getConstant(NumBits - 1, dl, VT);
+      SDValue LSB = DAG.getNode(ISD::AND, dl, VT, N0,
+                                DAG.getNode(ISD::SUB, dl, VT, Zero, N0));
       return DAG.getNode(ISD::SUB, dl, VT, WidthMinusOne,
                          DAG.getNode(ISD::CTLZ, dl, VT, LSB));
     }
 
-    // cttz(x) = ctpop(lsb - 1)
+    // cttz(x) = ctpop(~x & (x - 1))
     SDValue One = DAG.getConstant(1, dl, VT);
     return DAG.getNode(ISD::CTPOP, dl, VT,
-                       DAG.getNode(ISD::SUB, dl, VT, LSB, One));
+                       DAG.getNode(ISD::AND, dl, VT, DAG.getNOT(dl, N0, VT),
+                                   DAG.getNode(ISD::SUB, dl, VT, N0, One)));
   }
 
   assert(Op.getOpcode() == ISD::CTTZ &&
          "Only scalar CTTZ requires custom lowering");
 
   // Issue a bsf (scan bits forward) which also sets EFLAGS.
   SDVTList VTs = DAG.getVTList(VT, MVT::i32);
   Op = DAG.getNode(X86ISD::BSF, dl, VTs, Op.getOperand(0));
SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const {
   case ISD::EH_SJLJ_SETUP_DISPATCH:
     return lowerEH_SJLJ_SETUP_DISPATCH(Op, DAG);
   case ISD::INIT_TRAMPOLINE:    return LowerINIT_TRAMPOLINE(Op, DAG);
   case ISD::ADJUST_TRAMPOLINE:  return LowerADJUST_TRAMPOLINE(Op, DAG);
   case ISD::FLT_ROUNDS_:        return LowerFLT_ROUNDS_(Op, DAG);
   case ISD::CTLZ:
   case ISD::CTLZ_ZERO_UNDEF:    return LowerCTLZ(Op, Subtarget, DAG);
   case ISD::CTTZ:
-  case ISD::CTTZ_ZERO_UNDEF:    return LowerCTTZ(Op, DAG);
+  case ISD::CTTZ_ZERO_UNDEF:    return LowerCTTZ(Op, Subtarget, DAG);
   case ISD::MUL:                return LowerMUL(Op, Subtarget, DAG);
   case ISD::MULHS:
   case ISD::MULHU:              return LowerMULH(Op, Subtarget, DAG);
   case ISD::ROTL:
   case ISD::ROTR:               return LowerRotate(Op, Subtarget, DAG);
   case ISD::SRA:
   case ISD::SRL:
   case ISD::SHL:                return LowerShift(Op, Subtarget, DAG);

llvm/trunk/test/CodeGen/X86/vec_ctbits.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s
 
 declare <2 x i64> @llvm.cttz.v2i64(<2 x i64>, i1)
 declare <2 x i64> @llvm.ctlz.v2i64(<2 x i64>, i1)
 declare <2 x i64> @llvm.ctpop.v2i64(<2 x i64>)
 
 define <2 x i64> @footz(<2 x i64> %a) nounwind {
 ; CHECK-LABEL: footz:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    pxor %xmm1, %xmm1
-; CHECK-NEXT:    pxor %xmm2, %xmm2
-; CHECK-NEXT:    psubq %xmm0, %xmm2
-; CHECK-NEXT:    pand %xmm0, %xmm2
-; CHECK-NEXT:    pcmpeqd %xmm3, %xmm3
-; CHECK-NEXT:    paddq %xmm2, %xmm3
-; CHECK-NEXT:    movdqa %xmm3, %xmm0
-; CHECK-NEXT:    psrlw $1, %xmm0
-; CHECK-NEXT:    pand {{.*}}(%rip), %xmm0
-; CHECK-NEXT:    psubb %xmm0, %xmm3
-; CHECK-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; CHECK-NEXT:    movdqa %xmm3, %xmm2
-; CHECK-NEXT:    pand %xmm0, %xmm2
-; CHECK-NEXT:    psrlw $2, %xmm3
-; CHECK-NEXT:    pand %xmm0, %xmm3
-; CHECK-NEXT:    paddb %xmm2, %xmm3
-; CHECK-NEXT:    movdqa %xmm3, %xmm0
-; CHECK-NEXT:    psrlw $4, %xmm0
-; CHECK-NEXT:    paddb %xmm3, %xmm0
-; CHECK-NEXT:    pand {{.*}}(%rip), %xmm0
-; CHECK-NEXT:    psadbw %xmm1, %xmm0
+; CHECK-NEXT:    pcmpeqd %xmm1, %xmm1
+; CHECK-NEXT:    paddq %xmm0, %xmm1
+; CHECK-NEXT:    pandn %xmm1, %xmm0
+; CHECK-NEXT:    movdqa %xmm0, %xmm1
+; CHECK-NEXT:    psrlw $1, %xmm1
+; CHECK-NEXT:    pand {{.*}}(%rip), %xmm1
+; CHECK-NEXT:    psubb %xmm1, %xmm0
+; CHECK-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; CHECK-NEXT:    movdqa %xmm0, %xmm2
+; CHECK-NEXT:    pand %xmm1, %xmm2
+; CHECK-NEXT:    psrlw $2, %xmm0
+; CHECK-NEXT:    pand %xmm1, %xmm0
+; CHECK-NEXT:    paddb %xmm2, %xmm0
+; CHECK-NEXT:    movdqa %xmm0, %xmm1
+; CHECK-NEXT:    psrlw $4, %xmm1
+; CHECK-NEXT:    paddb %xmm0, %xmm1
+; CHECK-NEXT:    pand {{.*}}(%rip), %xmm1
+; CHECK-NEXT:    pxor %xmm0, %xmm0
+; CHECK-NEXT:    psadbw %xmm0, %xmm1
+; CHECK-NEXT:    movdqa %xmm1, %xmm0
 ; CHECK-NEXT:    retq
   %c = call <2 x i64> @llvm.cttz.v2i64(<2 x i64> %a, i1 true)
   ret <2 x i64> %c
 
 }
 define <2 x i64> @foolz(<2 x i64> %a) nounwind {
 ; CHECK-LABEL: foolz:
 ; CHECK:       # %bb.0:

 declare <2 x i32> @llvm.cttz.v2i32(<2 x i32>, i1)
 declare <2 x i32> @llvm.ctlz.v2i32(<2 x i32>, i1)
 declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
 
 define <2 x i32> @promtz(<2 x i32> %a) nounwind {
 ; CHECK-LABEL: promtz:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    por {{.*}}(%rip), %xmm0
-; CHECK-NEXT:    pxor %xmm1, %xmm1
-; CHECK-NEXT:    pxor %xmm2, %xmm2
-; CHECK-NEXT:    psubq %xmm0, %xmm2
-; CHECK-NEXT:    pand %xmm0, %xmm2
-; CHECK-NEXT:    pcmpeqd %xmm3, %xmm3
-; CHECK-NEXT:    paddq %xmm2, %xmm3
-; CHECK-NEXT:    movdqa %xmm3, %xmm0
-; CHECK-NEXT:    psrlw $1, %xmm0
-; CHECK-NEXT:    pand {{.*}}(%rip), %xmm0
-; CHECK-NEXT:    psubb %xmm0, %xmm3
-; CHECK-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; CHECK-NEXT:    movdqa %xmm3, %xmm2
-; CHECK-NEXT:    pand %xmm0, %xmm2
-; CHECK-NEXT:    psrlw $2, %xmm3
-; CHECK-NEXT:    pand %xmm0, %xmm3
-; CHECK-NEXT:    paddb %xmm2, %xmm3
-; CHECK-NEXT:    movdqa %xmm3, %xmm0
-; CHECK-NEXT:    psrlw $4, %xmm0
-; CHECK-NEXT:    paddb %xmm3, %xmm0
-; CHECK-NEXT:    pand {{.*}}(%rip), %xmm0
-; CHECK-NEXT:    psadbw %xmm1, %xmm0
+; CHECK-NEXT:    pcmpeqd %xmm1, %xmm1
+; CHECK-NEXT:    paddq %xmm0, %xmm1
+; CHECK-NEXT:    pandn %xmm1, %xmm0
+; CHECK-NEXT:    movdqa %xmm0, %xmm1
+; CHECK-NEXT:    psrlw $1, %xmm1
+; CHECK-NEXT:    pand {{.*}}(%rip), %xmm1
+; CHECK-NEXT:    psubb %xmm1, %xmm0
+; CHECK-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; CHECK-NEXT:    movdqa %xmm0, %xmm2
+; CHECK-NEXT:    pand %xmm1, %xmm2
+; CHECK-NEXT:    psrlw $2, %xmm0
+; CHECK-NEXT:    pand %xmm1, %xmm0
+; CHECK-NEXT:    paddb %xmm2, %xmm0
+; CHECK-NEXT:    movdqa %xmm0, %xmm1
+; CHECK-NEXT:    psrlw $4, %xmm1
+; CHECK-NEXT:    paddb %xmm0, %xmm1
+; CHECK-NEXT:    pand {{.*}}(%rip), %xmm1
+; CHECK-NEXT:    pxor %xmm0, %xmm0
+; CHECK-NEXT:    psadbw %xmm0, %xmm1
+; CHECK-NEXT:    movdqa %xmm1, %xmm0
 ; CHECK-NEXT:    retq
   %c = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %a, i1 false)
   ret <2 x i32> %c
 
 }
 define <2 x i32> @promlz(<2 x i32> %a) nounwind {
 ; CHECK-LABEL: promlz:
 ; CHECK:       # %bb.0:

llvm/trunk/test/CodeGen/X86/vector-tzcnt-128.ll

 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 ;
 ; Just one 32-bit run to make sure we do reasonable things for i64 tzcnt.
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=X32-SSE --check-prefix=X32-SSE41
 
 define <2 x i64> @testv2i64(<2 x i64> %in) nounwind {
 ; SSE2-LABEL: testv2i64:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    pxor %xmm2, %xmm2
-; SSE2-NEXT:    psubq %xmm0, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE2-NEXT:    paddq %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $1, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psubb %xmm0, %xmm3
-; SSE2-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE2-NEXT:    movdqa %xmm3, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    psrlw $2, %xmm3
-; SSE2-NEXT:    pand %xmm0, %xmm3
-; SSE2-NEXT:    paddb %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $4, %xmm0
-; SSE2-NEXT:    paddb %xmm3, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psadbw %xmm1, %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddq %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $1, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    psubb %xmm1, %xmm0
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    psrlw $2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm0
+; SSE2-NEXT:    paddb %xmm2, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $4, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    pxor %xmm0, %xmm0
+; SSE2-NEXT:    psadbw %xmm0, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv2i64:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    pxor %xmm2, %xmm2
-; SSE3-NEXT:    psubq %xmm0, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE3-NEXT:    paddq %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $1, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psubb %xmm0, %xmm3
-; SSE3-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE3-NEXT:    movdqa %xmm3, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    psrlw $2, %xmm3
-; SSE3-NEXT:    pand %xmm0, %xmm3
-; SSE3-NEXT:    paddb %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $4, %xmm0
-; SSE3-NEXT:    paddb %xmm3, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psadbw %xmm1, %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddq %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $1, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    psubb %xmm1, %xmm0
+; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE3-NEXT:    movdqa %xmm0, %xmm2
+; SSE3-NEXT:    pand %xmm1, %xmm2
+; SSE3-NEXT:    psrlw $2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm0
+; SSE3-NEXT:    paddb %xmm2, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $4, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    pxor %xmm0, %xmm0
+; SSE3-NEXT:    psadbw %xmm0, %xmm1
+; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv2i64:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    pxor %xmm2, %xmm2
-; SSSE3-NEXT:    psubq %xmm0, %xmm2
-; SSSE3-NEXT:    pand %xmm0, %xmm2
-; SSSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSSE3-NEXT:    paddq %xmm2, %xmm3
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddq %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSSE3-NEXT:    movdqa %xmm0, %xmm2
+; SSSE3-NEXT:    pand %xmm1, %xmm2
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSSE3-NEXT:    movdqa %xmm3, %xmm4
-; SSSE3-NEXT:    pand %xmm2, %xmm4
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSSE3-NEXT:    movdqa %xmm0, %xmm5
-; SSSE3-NEXT:    pshufb %xmm4, %xmm5
-; SSSE3-NEXT:    psrlw $4, %xmm3
-; SSSE3-NEXT:    pand %xmm2, %xmm3
-; SSSE3-NEXT:    pshufb %xmm3, %xmm0
-; SSSE3-NEXT:    paddb %xmm5, %xmm0
-; SSSE3-NEXT:    psadbw %xmm1, %xmm0
+; SSSE3-NEXT:    pshufb %xmm2, %xmm4
+; SSSE3-NEXT:    psrlw $4, %xmm0
+; SSSE3-NEXT:    pand %xmm1, %xmm0
+; SSSE3-NEXT:    pshufb %xmm0, %xmm3
+; SSSE3-NEXT:    paddb %xmm4, %xmm3
+; SSSE3-NEXT:    pxor %xmm0, %xmm0
+; SSSE3-NEXT:    psadbw %xmm3, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv2i64:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    pxor %xmm2, %xmm2
-; SSE41-NEXT:    psubq %xmm0, %xmm2
-; SSE41-NEXT:    pand %xmm0, %xmm2
-; SSE41-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE41-NEXT:    paddq %xmm2, %xmm3
-; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddq %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    movdqa %xmm0, %xmm2
+; SSE41-NEXT:    pand %xmm1, %xmm2
+; SSE41-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSE41-NEXT:    movdqa %xmm3, %xmm4
-; SSE41-NEXT:    pand %xmm2, %xmm4
-; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSE41-NEXT:    movdqa %xmm0, %xmm5
-; SSE41-NEXT:    pshufb %xmm4, %xmm5
-; SSE41-NEXT:    psrlw $4, %xmm3
-; SSE41-NEXT:    pand %xmm2, %xmm3
-; SSE41-NEXT:    pshufb %xmm3, %xmm0
-; SSE41-NEXT:    paddb %xmm5, %xmm0
-; SSE41-NEXT:    psadbw %xmm1, %xmm0
+; SSE41-NEXT:    pshufb %xmm2, %xmm4
+; SSE41-NEXT:    psrlw $4, %xmm0
+; SSE41-NEXT:    pand %xmm1, %xmm0
+; SSE41-NEXT:    pshufb %xmm0, %xmm3
+; SSE41-NEXT:    paddb %xmm4, %xmm3
+; SSE41-NEXT:    pxor %xmm0, %xmm0
+; SSE41-NEXT:    psadbw %xmm3, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX-LABEL: testv2i64:
 ; AVX:       # %bb.0:
-; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; AVX-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
-; AVX-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv2i64:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubq %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddq %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntq %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv2i64:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubq %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddq %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntq %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv2i64:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; BITALG_NOVLX-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG_NOVLX-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv2i64:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; BITALG-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
+; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv2i64:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    pxor %xmm2, %xmm2
-; X32-SSE-NEXT:    psubq %xmm0, %xmm2
-; X32-SSE-NEXT:    pand %xmm0, %xmm2
-; X32-SSE-NEXT:    psubq {{\.LCPI.*}}, %xmm2
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-SSE-NEXT:    movdqa %xmm2, %xmm4
-; X32-SSE-NEXT:    pand %xmm3, %xmm4
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-SSE-NEXT:    movdqa %xmm0, %xmm5
-; X32-SSE-NEXT:    pshufb %xmm4, %xmm5
-; X32-SSE-NEXT:    psrlw $4, %xmm2
-; X32-SSE-NEXT:    pand %xmm3, %xmm2
-; X32-SSE-NEXT:    pshufb %xmm2, %xmm0
-; X32-SSE-NEXT:    paddb %xmm5, %xmm0
-; X32-SSE-NEXT:    psadbw %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm1
+; X32-SSE-NEXT:    psubq {{\.LCPI.*}}, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm2
+; X32-SSE-NEXT:    pand %xmm1, %xmm2
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-SSE-NEXT:    movdqa %xmm3, %xmm4
+; X32-SSE-NEXT:    pshufb %xmm2, %xmm4
+; X32-SSE-NEXT:    psrlw $4, %xmm0
+; X32-SSE-NEXT:    pand %xmm1, %xmm0
+; X32-SSE-NEXT:    pshufb %xmm0, %xmm3
+; X32-SSE-NEXT:    paddb %xmm4, %xmm3
+; X32-SSE-NEXT:    pxor %xmm0, %xmm0
+; X32-SSE-NEXT:    psadbw %xmm3, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <2 x i64> @llvm.cttz.v2i64(<2 x i64> %in, i1 0)
   ret <2 x i64> %out
 }
 
 define <2 x i64> @testv2i64u(<2 x i64> %in) nounwind {
 ; SSE2-LABEL: testv2i64u:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    pxor %xmm2, %xmm2
-; SSE2-NEXT:    psubq %xmm0, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE2-NEXT:    paddq %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $1, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psubb %xmm0, %xmm3
-; SSE2-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE2-NEXT:    movdqa %xmm3, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    psrlw $2, %xmm3
-; SSE2-NEXT:    pand %xmm0, %xmm3
-; SSE2-NEXT:    paddb %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $4, %xmm0
-; SSE2-NEXT:    paddb %xmm3, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psadbw %xmm1, %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddq %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $1, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    psubb %xmm1, %xmm0
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    psrlw $2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm0
+; SSE2-NEXT:    paddb %xmm2, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $4, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    pxor %xmm0, %xmm0
+; SSE2-NEXT:    psadbw %xmm0, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv2i64u:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    pxor %xmm2, %xmm2
-; SSE3-NEXT:    psubq %xmm0, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE3-NEXT:    paddq %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $1, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psubb %xmm0, %xmm3
-; SSE3-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE3-NEXT:    movdqa %xmm3, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    psrlw $2, %xmm3
-; SSE3-NEXT:    pand %xmm0, %xmm3
-; SSE3-NEXT:    paddb %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $4, %xmm0
-; SSE3-NEXT:    paddb %xmm3, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psadbw %xmm1, %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddq %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $1, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    psubb %xmm1, %xmm0
+; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE3-NEXT:    movdqa %xmm0, %xmm2
+; SSE3-NEXT:    pand %xmm1, %xmm2
+; SSE3-NEXT:    psrlw $2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm0
+; SSE3-NEXT:    paddb %xmm2, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $4, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    pxor %xmm0, %xmm0
+; SSE3-NEXT:    psadbw %xmm0, %xmm1
+; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv2i64u:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    pxor %xmm2, %xmm2
-; SSSE3-NEXT:    psubq %xmm0, %xmm2
-; SSSE3-NEXT:    pand %xmm0, %xmm2
-; SSSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSSE3-NEXT:    paddq %xmm2, %xmm3
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddq %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSSE3-NEXT:    movdqa %xmm0, %xmm2
+; SSSE3-NEXT:    pand %xmm1, %xmm2
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSSE3-NEXT:    movdqa %xmm3, %xmm4
-; SSSE3-NEXT:    pand %xmm2, %xmm4
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSSE3-NEXT:    movdqa %xmm0, %xmm5
-; SSSE3-NEXT:    pshufb %xmm4, %xmm5
-; SSSE3-NEXT:    psrlw $4, %xmm3
-; SSSE3-NEXT:    pand %xmm2, %xmm3
-; SSSE3-NEXT:    pshufb %xmm3, %xmm0
-; SSSE3-NEXT:    paddb %xmm5, %xmm0
-; SSSE3-NEXT:    psadbw %xmm1, %xmm0
+; SSSE3-NEXT:    pshufb %xmm2, %xmm4
+; SSSE3-NEXT:    psrlw $4, %xmm0
+; SSSE3-NEXT:    pand %xmm1, %xmm0
+; SSSE3-NEXT:    pshufb %xmm0, %xmm3
+; SSSE3-NEXT:    paddb %xmm4, %xmm3
+; SSSE3-NEXT:    pxor %xmm0, %xmm0
+; SSSE3-NEXT:    psadbw %xmm3, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv2i64u:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    pxor %xmm2, %xmm2
-; SSE41-NEXT:    psubq %xmm0, %xmm2
-; SSE41-NEXT:    pand %xmm0, %xmm2
-; SSE41-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE41-NEXT:    paddq %xmm2, %xmm3
-; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddq %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    movdqa %xmm0, %xmm2
+; SSE41-NEXT:    pand %xmm1, %xmm2
+; SSE41-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSE41-NEXT:    movdqa %xmm3, %xmm4
-; SSE41-NEXT:    pand %xmm2, %xmm4
-; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSE41-NEXT:    movdqa %xmm0, %xmm5
-; SSE41-NEXT:    pshufb %xmm4, %xmm5
-; SSE41-NEXT:    psrlw $4, %xmm3
-; SSE41-NEXT:    pand %xmm2, %xmm3
-; SSE41-NEXT:    pshufb %xmm3, %xmm0
-; SSE41-NEXT:    paddb %xmm5, %xmm0
-; SSE41-NEXT:    psadbw %xmm1, %xmm0
+; SSE41-NEXT:    pshufb %xmm2, %xmm4
+; SSE41-NEXT:    psrlw $4, %xmm0
+; SSE41-NEXT:    pand %xmm1, %xmm0
+; SSE41-NEXT:    pshufb %xmm0, %xmm3
+; SSE41-NEXT:    paddb %xmm4, %xmm3
+; SSE41-NEXT:    pxor %xmm0, %xmm0
+; SSE41-NEXT:    psadbw %xmm3, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX1-LABEL: testv2i64u:
 ; AVX1:       # %bb.0:
-; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX1-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX1-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX1-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv2i64u:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX2-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX2-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX2-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX2-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX2-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv2i64u:
 ; AVX512CDVL:       # %bb.0:
 ; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDVL-NEXT:    vpsubq %xmm0, %xmm1, %xmm1
 ; AVX512CDVL-NEXT:    vpand %xmm1, %xmm0, %xmm0

 ; AVX512CD-NEXT:    vplzcntq %zmm0, %zmm0
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} xmm1 = [63,63]
 ; AVX512CD-NEXT:    vpsubq %xmm0, %xmm1, %xmm0
 ; AVX512CD-NEXT:    vzeroupper
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv2i64u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubq %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddq %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntq %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv2i64u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubq %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddq %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntq %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv2i64u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; BITALG_NOVLX-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG_NOVLX-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv2i64u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubq %xmm0, %xmm1, %xmm2
-; BITALG-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG-NEXT:    vpaddq %xmm2, %xmm0, %xmm0
+; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpaddq %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv2i64u:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    pxor %xmm2, %xmm2
-; X32-SSE-NEXT:    psubq %xmm0, %xmm2
-; X32-SSE-NEXT:    pand %xmm0, %xmm2
-; X32-SSE-NEXT:    psubq {{\.LCPI.*}}, %xmm2
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-SSE-NEXT:    movdqa %xmm2, %xmm4
-; X32-SSE-NEXT:    pand %xmm3, %xmm4
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-SSE-NEXT:    movdqa %xmm0, %xmm5
-; X32-SSE-NEXT:    pshufb %xmm4, %xmm5
-; X32-SSE-NEXT:    psrlw $4, %xmm2
-; X32-SSE-NEXT:    pand %xmm3, %xmm2
-; X32-SSE-NEXT:    pshufb %xmm2, %xmm0
-; X32-SSE-NEXT:    paddb %xmm5, %xmm0
-; X32-SSE-NEXT:    psadbw %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm1
+; X32-SSE-NEXT:    psubq {{\.LCPI.*}}, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm2
+; X32-SSE-NEXT:    pand %xmm1, %xmm2
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-SSE-NEXT:    movdqa %xmm3, %xmm4
+; X32-SSE-NEXT:    pshufb %xmm2, %xmm4
+; X32-SSE-NEXT:    psrlw $4, %xmm0
+; X32-SSE-NEXT:    pand %xmm1, %xmm0
+; X32-SSE-NEXT:    pshufb %xmm0, %xmm3
+; X32-SSE-NEXT:    paddb %xmm4, %xmm3
+; X32-SSE-NEXT:    pxor %xmm0, %xmm0
+; X32-SSE-NEXT:    psadbw %xmm3, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <2 x i64> @llvm.cttz.v2i64(<2 x i64> %in, i1 -1)
   ret <2 x i64> %out
 }
 
 define <4 x i32> @testv4i32(<4 x i32> %in) nounwind {
 ; SSE2-LABEL: testv4i32:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    pxor %xmm2, %xmm2
-; SSE2-NEXT:    psubd %xmm0, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE2-NEXT:    paddd %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $1, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psubb %xmm0, %xmm3
-; SSE2-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE2-NEXT:    movdqa %xmm3, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    psrlw $2, %xmm3
-; SSE2-NEXT:    pand %xmm0, %xmm3
-; SSE2-NEXT:    paddb %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $4, %xmm0
-; SSE2-NEXT:    paddb %xmm3, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddd %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $1, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    psubb %xmm1, %xmm0
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
-; SSE2-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm1[2],xmm2[3],xmm1[3]
-; SSE2-NEXT:    psadbw %xmm1, %xmm2
-; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
-; SSE2-NEXT:    psadbw %xmm1, %xmm0
-; SSE2-NEXT:    packuswb %xmm2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    psrlw $2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm0
+; SSE2-NEXT:    paddb %xmm2, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $4, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    pxor %xmm0, %xmm0
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
+; SSE2-NEXT:    psadbw %xmm0, %xmm2
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE2-NEXT:    psadbw %xmm0, %xmm1
+; SSE2-NEXT:    packuswb %xmm2, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv4i32:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    pxor %xmm2, %xmm2
-; SSE3-NEXT:    psubd %xmm0, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE3-NEXT:    paddd %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $1, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psubb %xmm0, %xmm3
-; SSE3-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE3-NEXT:    movdqa %xmm3, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    psrlw $2, %xmm3
-; SSE3-NEXT:    pand %xmm0, %xmm3
-; SSE3-NEXT:    paddb %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $4, %xmm0
-; SSE3-NEXT:    paddb %xmm3, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddd %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $1, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    psubb %xmm1, %xmm0
+; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE3-NEXT:    movdqa %xmm0, %xmm2
-; SSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm1[2],xmm2[3],xmm1[3]
-; SSE3-NEXT:    psadbw %xmm1, %xmm2
-; SSE3-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
-; SSE3-NEXT:    psadbw %xmm1, %xmm0
-; SSE3-NEXT:    packuswb %xmm2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm2
+; SSE3-NEXT:    psrlw $2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm0
+; SSE3-NEXT:    paddb %xmm2, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $4, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    pxor %xmm0, %xmm0
+; SSE3-NEXT:    movdqa %xmm1, %xmm2
+; SSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
+; SSE3-NEXT:    psadbw %xmm0, %xmm2
+; SSE3-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE3-NEXT:    psadbw %xmm0, %xmm1
+; SSE3-NEXT:    packuswb %xmm2, %xmm1
+; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv4i32:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    pxor %xmm2, %xmm2
-; SSSE3-NEXT:    psubd %xmm0, %xmm2
-; SSSE3-NEXT:    pand %xmm0, %xmm2
-; SSSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSSE3-NEXT:    paddd %xmm2, %xmm3
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddd %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSSE3-NEXT:    movdqa %xmm3, %xmm4
-; SSSE3-NEXT:    pand %xmm2, %xmm4
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSSE3-NEXT:    movdqa %xmm0, %xmm5
-; SSSE3-NEXT:    pshufb %xmm4, %xmm5
-; SSSE3-NEXT:    psrlw $4, %xmm3
+; SSSE3-NEXT:    movdqa %xmm0, %xmm3
 ; SSSE3-NEXT:    pand %xmm2, %xmm3
-; SSSE3-NEXT:    pshufb %xmm3, %xmm0
-; SSSE3-NEXT:    paddb %xmm5, %xmm0
-; SSSE3-NEXT:    movdqa %xmm0, %xmm2
-; SSSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm1[2],xmm2[3],xmm1[3]
-; SSSE3-NEXT:    psadbw %xmm1, %xmm2
-; SSSE3-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
-; SSSE3-NEXT:    psadbw %xmm1, %xmm0
-; SSSE3-NEXT:    packuswb %xmm2, %xmm0
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSSE3-NEXT:    movdqa %xmm1, %xmm4
+; SSSE3-NEXT:    pshufb %xmm3, %xmm4
+; SSSE3-NEXT:    psrlw $4, %xmm0
+; SSSE3-NEXT:    pand %xmm2, %xmm0
+; SSSE3-NEXT:    pshufb %xmm0, %xmm1
+; SSSE3-NEXT:    paddb %xmm4, %xmm1
+; SSSE3-NEXT:    pxor %xmm0, %xmm0
+; SSSE3-NEXT:    movdqa %xmm1, %xmm2
+; SSSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
+; SSSE3-NEXT:    psadbw %xmm0, %xmm2
+; SSSE3-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSSE3-NEXT:    psadbw %xmm0, %xmm1
+; SSSE3-NEXT:    packuswb %xmm2, %xmm1
+; SSSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv4i32:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    pxor %xmm2, %xmm2
-; SSE41-NEXT:    psubd %xmm0, %xmm2
-; SSE41-NEXT:    pand %xmm0, %xmm2
-; SSE41-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE41-NEXT:    paddd %xmm2, %xmm0
-; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSE41-NEXT:    movdqa %xmm0, %xmm3
-; SSE41-NEXT:    pand %xmm2, %xmm3
-; SSE41-NEXT:    movdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSE41-NEXT:    movdqa %xmm4, %xmm5
-; SSE41-NEXT:    pshufb %xmm3, %xmm5
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddd %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    movdqa %xmm0, %xmm2
+; SSE41-NEXT:    pand %xmm1, %xmm2
+; SSE41-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSE41-NEXT:    movdqa %xmm3, %xmm4
+; SSE41-NEXT:    pshufb %xmm2, %xmm4
 ; SSE41-NEXT:    psrlw $4, %xmm0
-; SSE41-NEXT:    pand %xmm2, %xmm0
-; SSE41-NEXT:    pshufb %xmm0, %xmm4
-; SSE41-NEXT:    paddb %xmm5, %xmm4
-; SSE41-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm4[0],zero,xmm4[1],zero
-; SSE41-NEXT:    punpckhdq {{.*#+}} xmm4 = xmm4[2],xmm1[2],xmm4[3],xmm1[3]
-; SSE41-NEXT:    psadbw %xmm1, %xmm4
+; SSE41-NEXT:    pand %xmm1, %xmm0
+; SSE41-NEXT:    pshufb %xmm0, %xmm3
+; SSE41-NEXT:    paddb %xmm4, %xmm3
+; SSE41-NEXT:    pxor %xmm1, %xmm1
+; SSE41-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero
+; SSE41-NEXT:    punpckhdq {{.*#+}} xmm3 = xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; SSE41-NEXT:    psadbw %xmm1, %xmm3
 ; SSE41-NEXT:    psadbw %xmm1, %xmm0
-; SSE41-NEXT:    packuswb %xmm4, %xmm0
+; SSE41-NEXT:    packuswb %xmm3, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX1-LABEL: testv4i32:
 ; AVX1:       # %bb.0:
-; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX1-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX1-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; AVX1-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; AVX1-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; AVX1-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX1-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv4i32:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX2-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX2-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX2-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX2-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX2-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; AVX2-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; AVX2-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; AVX2-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX2-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv4i32:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; AVX512CDVL-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX512CDVL-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX512CDVL-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
-; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CDVL-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CDVL-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX512CDVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512CDVL-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX512CDVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CDVL-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CDVL-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX512CDVL-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX512CDVL-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX512CDVL-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX512CDVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX512CDVL-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX512CDVL-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDVL-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; AVX512CDVL-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; AVX512CDVL-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
 ; AVX512CDVL-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX512CDVL-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv4i32:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; AVX512CD-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX512CD-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX512CD-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX512CD-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512CD-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX512CD-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX512CD-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX512CD-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX512CD-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX512CD-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX512CD-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX512CD-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX512CD-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CD-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; AVX512CD-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; AVX512CD-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; AVX512CD-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX512CD-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv4i32:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubd %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddd %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv4i32:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubd %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddd %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv4i32:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; BITALG_NOVLX-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG_NOVLX-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; BITALG_NOVLX-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; BITALG_NOVLX-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; BITALG_NOVLX-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv4i32:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; BITALG-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
+; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; BITALG-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; BITALG-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
 ; BITALG-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv4i32:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    pxor %xmm2, %xmm2
-; X32-SSE-NEXT:    psubd %xmm0, %xmm2
-; X32-SSE-NEXT:    pand %xmm0, %xmm2
-; X32-SSE-NEXT:    pcmpeqd %xmm0, %xmm0
-; X32-SSE-NEXT:    paddd %xmm2, %xmm0
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-SSE-NEXT:    movdqa %xmm0, %xmm3
-; X32-SSE-NEXT:    pand %xmm2, %xmm3
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-SSE-NEXT:    movdqa %xmm4, %xmm5
-; X32-SSE-NEXT:    pshufb %xmm3, %xmm5
+; X32-SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; X32-SSE-NEXT:    paddd %xmm0, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm2
+; X32-SSE-NEXT:    pand %xmm1, %xmm2
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-SSE-NEXT:    movdqa %xmm3, %xmm4
+; X32-SSE-NEXT:    pshufb %xmm2, %xmm4
 ; X32-SSE-NEXT:    psrlw $4, %xmm0
-; X32-SSE-NEXT:    pand %xmm2, %xmm0
-; X32-SSE-NEXT:    pshufb %xmm0, %xmm4
-; X32-SSE-NEXT:    paddb %xmm5, %xmm4
-; X32-SSE-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm4[0],zero,xmm4[1],zero
-; X32-SSE-NEXT:    punpckhdq {{.*#+}} xmm4 = xmm4[2],xmm1[2],xmm4[3],xmm1[3]
-; X32-SSE-NEXT:    psadbw %xmm1, %xmm4
+; X32-SSE-NEXT:    pand %xmm1, %xmm0
+; X32-SSE-NEXT:    pshufb %xmm0, %xmm3
+; X32-SSE-NEXT:    paddb %xmm4, %xmm3
+; X32-SSE-NEXT:    pxor %xmm1, %xmm1
+; X32-SSE-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero
+; X32-SSE-NEXT:    punpckhdq {{.*#+}} xmm3 = xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; X32-SSE-NEXT:    psadbw %xmm1, %xmm3
 ; X32-SSE-NEXT:    psadbw %xmm1, %xmm0
-; X32-SSE-NEXT:    packuswb %xmm4, %xmm0
+; X32-SSE-NEXT:    packuswb %xmm3, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <4 x i32> @llvm.cttz.v4i32(<4 x i32> %in, i1 0)
   ret <4 x i32> %out
 }
 
 define <4 x i32> @testv4i32u(<4 x i32> %in) nounwind {
 ; SSE2-LABEL: testv4i32u:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    pxor %xmm2, %xmm2
-; SSE2-NEXT:    psubd %xmm0, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE2-NEXT:    paddd %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $1, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psubb %xmm0, %xmm3
-; SSE2-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE2-NEXT:    movdqa %xmm3, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    psrlw $2, %xmm3
-; SSE2-NEXT:    pand %xmm0, %xmm3
-; SSE2-NEXT:    paddb %xmm2, %xmm3
-; SSE2-NEXT:    movdqa %xmm3, %xmm0
-; SSE2-NEXT:    psrlw $4, %xmm0
-; SSE2-NEXT:    paddb %xmm3, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddd %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $1, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    psubb %xmm1, %xmm0
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
-; SSE2-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm1[2],xmm2[3],xmm1[3]
-; SSE2-NEXT:    psadbw %xmm1, %xmm2
-; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
-; SSE2-NEXT:    psadbw %xmm1, %xmm0
-; SSE2-NEXT:    packuswb %xmm2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    psrlw $2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm0
+; SSE2-NEXT:    paddb %xmm2, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $4, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    pxor %xmm0, %xmm0
+; SSE2-NEXT:    movdqa %xmm1, %xmm2
+; SSE2-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
+; SSE2-NEXT:    psadbw %xmm0, %xmm2
+; SSE2-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE2-NEXT:    psadbw %xmm0, %xmm1
+; SSE2-NEXT:    packuswb %xmm2, %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv4i32u:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    pxor %xmm2, %xmm2
-; SSE3-NEXT:    psubd %xmm0, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSE3-NEXT:    paddd %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $1, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psubb %xmm0, %xmm3
-; SSE3-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE3-NEXT:    movdqa %xmm3, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    psrlw $2, %xmm3
-; SSE3-NEXT:    pand %xmm0, %xmm3
-; SSE3-NEXT:    paddb %xmm2, %xmm3
-; SSE3-NEXT:    movdqa %xmm3, %xmm0
-; SSE3-NEXT:    psrlw $4, %xmm0
-; SSE3-NEXT:    paddb %xmm3, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddd %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $1, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    psubb %xmm1, %xmm0
+; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE3-NEXT:    movdqa %xmm0, %xmm2
-; SSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm1[2],xmm2[3],xmm1[3]
-; SSE3-NEXT:    psadbw %xmm1, %xmm2
-; SSE3-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
-; SSE3-NEXT:    psadbw %xmm1, %xmm0
-; SSE3-NEXT:    packuswb %xmm2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm2
+; SSE3-NEXT:    psrlw $2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm0
+; SSE3-NEXT:    paddb %xmm2, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $4, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    pxor %xmm0, %xmm0
+; SSE3-NEXT:    movdqa %xmm1, %xmm2
+; SSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
+; SSE3-NEXT:    psadbw %xmm0, %xmm2
+; SSE3-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSE3-NEXT:    psadbw %xmm0, %xmm1
+; SSE3-NEXT:    packuswb %xmm2, %xmm1
+; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv4i32u:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    pxor %xmm2, %xmm2
-; SSSE3-NEXT:    psubd %xmm0, %xmm2
-; SSSE3-NEXT:    pand %xmm0, %xmm2
-; SSSE3-NEXT:    pcmpeqd %xmm3, %xmm3
-; SSSE3-NEXT:    paddd %xmm2, %xmm3
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddd %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSSE3-NEXT:    movdqa %xmm3, %xmm4
-; SSSE3-NEXT:    pand %xmm2, %xmm4
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSSE3-NEXT:    movdqa %xmm0, %xmm5
-; SSSE3-NEXT:    pshufb %xmm4, %xmm5
-; SSSE3-NEXT:    psrlw $4, %xmm3
+; SSSE3-NEXT:    movdqa %xmm0, %xmm3
 ; SSSE3-NEXT:    pand %xmm2, %xmm3
-; SSSE3-NEXT:    pshufb %xmm3, %xmm0
-; SSSE3-NEXT:    paddb %xmm5, %xmm0
-; SSSE3-NEXT:    movdqa %xmm0, %xmm2
-; SSSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm1[2],xmm2[3],xmm1[3]
-; SSSE3-NEXT:    psadbw %xmm1, %xmm2
-; SSSE3-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
-; SSSE3-NEXT:    psadbw %xmm1, %xmm0
-; SSSE3-NEXT:    packuswb %xmm2, %xmm0
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSSE3-NEXT:    movdqa %xmm1, %xmm4
+; SSSE3-NEXT:    pshufb %xmm3, %xmm4
+; SSSE3-NEXT:    psrlw $4, %xmm0
+; SSSE3-NEXT:    pand %xmm2, %xmm0
+; SSSE3-NEXT:    pshufb %xmm0, %xmm1
+; SSSE3-NEXT:    paddb %xmm4, %xmm1
+; SSSE3-NEXT:    pxor %xmm0, %xmm0
+; SSSE3-NEXT:    movdqa %xmm1, %xmm2
+; SSSE3-NEXT:    punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
+; SSSE3-NEXT:    psadbw %xmm0, %xmm2
+; SSSE3-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
+; SSSE3-NEXT:    psadbw %xmm0, %xmm1
+; SSSE3-NEXT:    packuswb %xmm2, %xmm1
+; SSSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv4i32u:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    pxor %xmm2, %xmm2
-; SSE41-NEXT:    psubd %xmm0, %xmm2
-; SSE41-NEXT:    pand %xmm0, %xmm2
-; SSE41-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE41-NEXT:    paddd %xmm2, %xmm0
-; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSE41-NEXT:    movdqa %xmm0, %xmm3
-; SSE41-NEXT:    pand %xmm2, %xmm3
-; SSE41-NEXT:    movdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSE41-NEXT:    movdqa %xmm4, %xmm5
-; SSE41-NEXT:    pshufb %xmm3, %xmm5
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddd %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    movdqa %xmm0, %xmm2
+; SSE41-NEXT:    pand %xmm1, %xmm2
+; SSE41-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSE41-NEXT:    movdqa %xmm3, %xmm4
+; SSE41-NEXT:    pshufb %xmm2, %xmm4
 ; SSE41-NEXT:    psrlw $4, %xmm0
-; SSE41-NEXT:    pand %xmm2, %xmm0
-; SSE41-NEXT:    pshufb %xmm0, %xmm4
-; SSE41-NEXT:    paddb %xmm5, %xmm4
-; SSE41-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm4[0],zero,xmm4[1],zero
-; SSE41-NEXT:    punpckhdq {{.*#+}} xmm4 = xmm4[2],xmm1[2],xmm4[3],xmm1[3]
-; SSE41-NEXT:    psadbw %xmm1, %xmm4
+; SSE41-NEXT:    pand %xmm1, %xmm0
+; SSE41-NEXT:    pshufb %xmm0, %xmm3
+; SSE41-NEXT:    paddb %xmm4, %xmm3
+; SSE41-NEXT:    pxor %xmm1, %xmm1
+; SSE41-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero
+; SSE41-NEXT:    punpckhdq {{.*#+}} xmm3 = xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; SSE41-NEXT:    psadbw %xmm1, %xmm3
 ; SSE41-NEXT:    psadbw %xmm1, %xmm0
-; SSE41-NEXT:    packuswb %xmm4, %xmm0
+; SSE41-NEXT:    packuswb %xmm3, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX1-LABEL: testv4i32u:
 ; AVX1:       # %bb.0:
-; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX1-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX1-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; AVX1-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; AVX1-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; AVX1-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX1-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv4i32u:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; AVX2-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %xmm3, %xmm4, %xmm3
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %xmm1, %xmm0, %xmm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX2-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX2-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX2-NEXT:    vpshufb %xmm0, %xmm4, %xmm0
-; AVX2-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
+; AVX2-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
+; AVX2-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; AVX2-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; AVX2-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; AVX2-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; AVX2-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv4i32u:

 ; AVX512CD-NEXT:    vplzcntd %zmm0, %zmm0
 ; AVX512CD-NEXT:    vpbroadcastd {{.*#+}} xmm1 = [31,31,31,31]
 ; AVX512CD-NEXT:    vpsubd %xmm0, %xmm1, %xmm0
 ; AVX512CD-NEXT:    vzeroupper
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv4i32u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubd %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddd %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv4i32u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubd %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddd %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv4i32u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; BITALG_NOVLX-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG_NOVLX-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; BITALG_NOVLX-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; BITALG_NOVLX-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; BITALG_NOVLX-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv4i32u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubd %xmm0, %xmm1, %xmm2
-; BITALG-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; BITALG-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
-; BITALG-NEXT:    vpaddd %xmm2, %xmm0, %xmm0
+; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpaddd %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
 ; BITALG-NEXT:    vpsadbw %xmm1, %xmm2, %xmm2
 ; BITALG-NEXT:    vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
 ; BITALG-NEXT:    vpsadbw %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv4i32u:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    pxor %xmm2, %xmm2
-; X32-SSE-NEXT:    psubd %xmm0, %xmm2
-; X32-SSE-NEXT:    pand %xmm0, %xmm2
-; X32-SSE-NEXT:    pcmpeqd %xmm0, %xmm0
-; X32-SSE-NEXT:    paddd %xmm2, %xmm0
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-SSE-NEXT:    movdqa %xmm0, %xmm3
-; X32-SSE-NEXT:    pand %xmm2, %xmm3
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-SSE-NEXT:    movdqa %xmm4, %xmm5
-; X32-SSE-NEXT:    pshufb %xmm3, %xmm5
+; X32-SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; X32-SSE-NEXT:    paddd %xmm0, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm2
+; X32-SSE-NEXT:    pand %xmm1, %xmm2
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-SSE-NEXT:    movdqa %xmm3, %xmm4
+; X32-SSE-NEXT:    pshufb %xmm2, %xmm4
 ; X32-SSE-NEXT:    psrlw $4, %xmm0
-; X32-SSE-NEXT:    pand %xmm2, %xmm0
-; X32-SSE-NEXT:    pshufb %xmm0, %xmm4
-; X32-SSE-NEXT:    paddb %xmm5, %xmm4
-; X32-SSE-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm4[0],zero,xmm4[1],zero
-; X32-SSE-NEXT:    punpckhdq {{.*#+}} xmm4 = xmm4[2],xmm1[2],xmm4[3],xmm1[3]
-; X32-SSE-NEXT:    psadbw %xmm1, %xmm4
+; X32-SSE-NEXT:    pand %xmm1, %xmm0
+; X32-SSE-NEXT:    pshufb %xmm0, %xmm3
+; X32-SSE-NEXT:    paddb %xmm4, %xmm3
+; X32-SSE-NEXT:    pxor %xmm1, %xmm1
+; X32-SSE-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero
+; X32-SSE-NEXT:    punpckhdq {{.*#+}} xmm3 = xmm3[2],xmm1[2],xmm3[3],xmm1[3]
+; X32-SSE-NEXT:    psadbw %xmm1, %xmm3
 ; X32-SSE-NEXT:    psadbw %xmm1, %xmm0
-; X32-SSE-NEXT:    packuswb %xmm4, %xmm0
+; X32-SSE-NEXT:    packuswb %xmm3, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <4 x i32> @llvm.cttz.v4i32(<4 x i32> %in, i1 -1)
   ret <4 x i32> %out
 }
 
 define <8 x i16> @testv8i16(<8 x i16> %in) nounwind {
 ; SSE2-LABEL: testv8i16:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    psubw %xmm0, %xmm1
-; SSE2-NEXT:    pand %xmm0, %xmm1
-; SSE2-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE2-NEXT:    paddw %xmm1, %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddw %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    psrlw $1, %xmm1
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE2-NEXT:    psubb %xmm1, %xmm0
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
 ; SSE2-NEXT:    pand %xmm1, %xmm2
 ; SSE2-NEXT:    psrlw $2, %xmm0
 ; SSE2-NEXT:    pand %xmm1, %xmm0
 ; SSE2-NEXT:    paddb %xmm2, %xmm0
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    psrlw $4, %xmm1
 ; SSE2-NEXT:    paddb %xmm0, %xmm1
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    psllw $8, %xmm0
 ; SSE2-NEXT:    paddb %xmm1, %xmm0
 ; SSE2-NEXT:    psrlw $8, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv8i16:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    psubw %xmm0, %xmm1
-; SSE3-NEXT:    pand %xmm0, %xmm1
-; SSE3-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE3-NEXT:    paddw %xmm1, %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddw %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
 ; SSE3-NEXT:    movdqa %xmm0, %xmm1
 ; SSE3-NEXT:    psrlw $1, %xmm1
 ; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE3-NEXT:    psubb %xmm1, %xmm0
 ; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE3-NEXT:    movdqa %xmm0, %xmm2
 ; SSE3-NEXT:    pand %xmm1, %xmm2
 ; SSE3-NEXT:    psrlw $2, %xmm0
 ; SSE3-NEXT:    pand %xmm1, %xmm0
 ; SSE3-NEXT:    paddb %xmm2, %xmm0
 ; SSE3-NEXT:    movdqa %xmm0, %xmm1
 ; SSE3-NEXT:    psrlw $4, %xmm1
 ; SSE3-NEXT:    paddb %xmm0, %xmm1
 ; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    psllw $8, %xmm0
 ; SSE3-NEXT:    paddb %xmm1, %xmm0
 ; SSE3-NEXT:    psrlw $8, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv8i16:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    psubw %xmm0, %xmm1
-; SSSE3-NEXT:    pand %xmm0, %xmm1
-; SSSE3-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSSE3-NEXT:    paddw %xmm1, %xmm0
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddw %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm2
 ; SSSE3-NEXT:    pand %xmm1, %xmm2
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSSE3-NEXT:    movdqa %xmm3, %xmm4
 ; SSSE3-NEXT:    pshufb %xmm2, %xmm4
 ; SSSE3-NEXT:    psrlw $4, %xmm0
 ; SSSE3-NEXT:    pand %xmm1, %xmm0
 ; SSSE3-NEXT:    pshufb %xmm0, %xmm3
 ; SSSE3-NEXT:    paddb %xmm4, %xmm3
 ; SSSE3-NEXT:    movdqa %xmm3, %xmm0
 ; SSSE3-NEXT:    psllw $8, %xmm0
 ; SSSE3-NEXT:    paddb %xmm3, %xmm0
 ; SSSE3-NEXT:    psrlw $8, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv8i16:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    psubw %xmm0, %xmm1
-; SSE41-NEXT:    pand %xmm0, %xmm1
-; SSE41-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE41-NEXT:    paddw %xmm1, %xmm0
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddw %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    pand %xmm1, %xmm2
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSE41-NEXT:    movdqa %xmm3, %xmm4
 ; SSE41-NEXT:    pshufb %xmm2, %xmm4
 ; SSE41-NEXT:    psrlw $4, %xmm0
 ; SSE41-NEXT:    pand %xmm1, %xmm0
 ; SSE41-NEXT:    pshufb %xmm0, %xmm3
 ; SSE41-NEXT:    paddb %xmm4, %xmm3
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    psllw $8, %xmm0
 ; SSE41-NEXT:    paddb %xmm3, %xmm0
 ; SSE41-NEXT:    psrlw $8, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX-LABEL: testv8i16:
 ; AVX:       # %bb.0:
-; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm2
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX-NEXT:    vpsrlw $4, %xmm0, %xmm0
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
 ; AVX-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
 ; AVX-NEXT:    vpsllw $8, %xmm0, %xmm1
 ; AVX-NEXT:    vpaddb %xmm0, %xmm1, %xmm0
 ; AVX-NEXT:    vpsrlw $8, %xmm0, %xmm0
 ; AVX-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv8i16:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv8i16:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovdw %ymm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv8i16:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv8i16:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; BITALG-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntw %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv8i16:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    psubw %xmm0, %xmm1
-; X32-SSE-NEXT:    pand %xmm0, %xmm1
-; X32-SSE-NEXT:    pcmpeqd %xmm0, %xmm0
-; X32-SSE-NEXT:    paddw %xmm1, %xmm0
+; X32-SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; X32-SSE-NEXT:    paddw %xmm0, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
 ; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; X32-SSE-NEXT:    movdqa %xmm0, %xmm2
 ; X32-SSE-NEXT:    pand %xmm1, %xmm2
 ; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; X32-SSE-NEXT:    movdqa %xmm3, %xmm4
 ; X32-SSE-NEXT:    pshufb %xmm2, %xmm4
 ; X32-SSE-NEXT:    psrlw $4, %xmm0
 ; X32-SSE-NEXT:    pand %xmm1, %xmm0
 ; X32-SSE-NEXT:    pshufb %xmm0, %xmm3
 ; X32-SSE-NEXT:    paddb %xmm4, %xmm3
 ; X32-SSE-NEXT:    movdqa %xmm3, %xmm0
 ; X32-SSE-NEXT:    psllw $8, %xmm0
 ; X32-SSE-NEXT:    paddb %xmm3, %xmm0
 ; X32-SSE-NEXT:    psrlw $8, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <8 x i16> @llvm.cttz.v8i16(<8 x i16> %in, i1 0)
   ret <8 x i16> %out
 }
 
 define <8 x i16> @testv8i16u(<8 x i16> %in) nounwind {
 ; SSE2-LABEL: testv8i16u:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    psubw %xmm0, %xmm1
-; SSE2-NEXT:    pand %xmm0, %xmm1
-; SSE2-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE2-NEXT:    paddw %xmm1, %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddw %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    psrlw $1, %xmm1
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE2-NEXT:    psubb %xmm1, %xmm0
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
 ; SSE2-NEXT:    pand %xmm1, %xmm2
 ; SSE2-NEXT:    psrlw $2, %xmm0
 ; SSE2-NEXT:    pand %xmm1, %xmm0
 ; SSE2-NEXT:    paddb %xmm2, %xmm0
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    psrlw $4, %xmm1
 ; SSE2-NEXT:    paddb %xmm0, %xmm1
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    psllw $8, %xmm0
 ; SSE2-NEXT:    paddb %xmm1, %xmm0
 ; SSE2-NEXT:    psrlw $8, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv8i16u:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    psubw %xmm0, %xmm1
-; SSE3-NEXT:    pand %xmm0, %xmm1
-; SSE3-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE3-NEXT:    paddw %xmm1, %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddw %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
 ; SSE3-NEXT:    movdqa %xmm0, %xmm1
 ; SSE3-NEXT:    psrlw $1, %xmm1
 ; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE3-NEXT:    psubb %xmm1, %xmm0
 ; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
 ; SSE3-NEXT:    movdqa %xmm0, %xmm2
 ; SSE3-NEXT:    pand %xmm1, %xmm2
 ; SSE3-NEXT:    psrlw $2, %xmm0
 ; SSE3-NEXT:    pand %xmm1, %xmm0
 ; SSE3-NEXT:    paddb %xmm2, %xmm0
 ; SSE3-NEXT:    movdqa %xmm0, %xmm1
 ; SSE3-NEXT:    psrlw $4, %xmm1
 ; SSE3-NEXT:    paddb %xmm0, %xmm1
 ; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    psllw $8, %xmm0
 ; SSE3-NEXT:    paddb %xmm1, %xmm0
 ; SSE3-NEXT:    psrlw $8, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv8i16u:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    psubw %xmm0, %xmm1
-; SSSE3-NEXT:    pand %xmm0, %xmm1
-; SSSE3-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSSE3-NEXT:    paddw %xmm1, %xmm0
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddw %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm2
 ; SSSE3-NEXT:    pand %xmm1, %xmm2
 ; SSSE3-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSSE3-NEXT:    movdqa %xmm3, %xmm4
 ; SSSE3-NEXT:    pshufb %xmm2, %xmm4
 ; SSSE3-NEXT:    psrlw $4, %xmm0
 ; SSSE3-NEXT:    pand %xmm1, %xmm0
 ; SSSE3-NEXT:    pshufb %xmm0, %xmm3
 ; SSSE3-NEXT:    paddb %xmm4, %xmm3
 ; SSSE3-NEXT:    movdqa %xmm3, %xmm0
 ; SSSE3-NEXT:    psllw $8, %xmm0
 ; SSSE3-NEXT:    paddb %xmm3, %xmm0
 ; SSSE3-NEXT:    psrlw $8, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv8i16u:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    psubw %xmm0, %xmm1
-; SSE41-NEXT:    pand %xmm0, %xmm1
-; SSE41-NEXT:    pcmpeqd %xmm0, %xmm0
-; SSE41-NEXT:    paddw %xmm1, %xmm0
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddw %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    pand %xmm1, %xmm2
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; SSE41-NEXT:    movdqa %xmm3, %xmm4
 ; SSE41-NEXT:    pshufb %xmm2, %xmm4
 ; SSE41-NEXT:    psrlw $4, %xmm0
 ; SSE41-NEXT:    pand %xmm1, %xmm0
 ; SSE41-NEXT:    pshufb %xmm0, %xmm3
 ; SSE41-NEXT:    paddb %xmm4, %xmm3
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    psllw $8, %xmm0
 ; SSE41-NEXT:    paddb %xmm3, %xmm0
 ; SSE41-NEXT:    psrlw $8, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX-LABEL: testv8i16u:
 ; AVX:       # %bb.0:
-; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm2
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX-NEXT:    vpsrlw $4, %xmm0, %xmm0
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
 ; AVX-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
 ; AVX-NEXT:    vpsllw $8, %xmm0, %xmm1
 ; AVX-NEXT:    vpaddb %xmm0, %xmm1, %xmm0
 ; AVX-NEXT:    vpsrlw $8, %xmm0, %xmm0
 ; AVX-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv8i16u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv8i16u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovdw %ymm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv8i16u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv8i16u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; BITALG-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntw %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv8i16u:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    psubw %xmm0, %xmm1
-; X32-SSE-NEXT:    pand %xmm0, %xmm1
-; X32-SSE-NEXT:    pcmpeqd %xmm0, %xmm0
-; X32-SSE-NEXT:    paddw %xmm1, %xmm0
+; X32-SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; X32-SSE-NEXT:    paddw %xmm0, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
 ; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; X32-SSE-NEXT:    movdqa %xmm0, %xmm2
 ; X32-SSE-NEXT:    pand %xmm1, %xmm2
 ; X32-SSE-NEXT:    movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; X32-SSE-NEXT:    movdqa %xmm3, %xmm4
 ; X32-SSE-NEXT:    pshufb %xmm2, %xmm4
 ; X32-SSE-NEXT:    psrlw $4, %xmm0
 ; X32-SSE-NEXT:    pand %xmm1, %xmm0
 ; X32-SSE-NEXT:    pshufb %xmm0, %xmm3
 ; X32-SSE-NEXT:    paddb %xmm4, %xmm3
 ; X32-SSE-NEXT:    movdqa %xmm3, %xmm0
 ; X32-SSE-NEXT:    psllw $8, %xmm0
 ; X32-SSE-NEXT:    paddb %xmm3, %xmm0
 ; X32-SSE-NEXT:    psrlw $8, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <8 x i16> @llvm.cttz.v8i16(<8 x i16> %in, i1 -1)
   ret <8 x i16> %out
 }
 
 define <16 x i8> @testv16i8(<16 x i8> %in) nounwind {
 ; SSE2-LABEL: testv16i8:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    psubb %xmm0, %xmm1
-; SSE2-NEXT:    pand %xmm0, %xmm1
-; SSE2-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSE2-NEXT:    paddb %xmm1, %xmm2
-; SSE2-NEXT:    movdqa %xmm2, %xmm0
-; SSE2-NEXT:    psrlw $1, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psubb %xmm0, %xmm2
-; SSE2-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE2-NEXT:    movdqa %xmm2, %xmm1
-; SSE2-NEXT:    pand %xmm0, %xmm1
-; SSE2-NEXT:    psrlw $2, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    paddb %xmm1, %xmm2
-; SSE2-NEXT:    movdqa %xmm2, %xmm0
-; SSE2-NEXT:    psrlw $4, %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $1, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    psubb %xmm1, %xmm0
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    psrlw $2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm0
 ; SSE2-NEXT:    paddb %xmm2, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $4, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv16i8:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    psubb %xmm0, %xmm1
-; SSE3-NEXT:    pand %xmm0, %xmm1
-; SSE3-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSE3-NEXT:    paddb %xmm1, %xmm2
-; SSE3-NEXT:    movdqa %xmm2, %xmm0
-; SSE3-NEXT:    psrlw $1, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psubb %xmm0, %xmm2
-; SSE3-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE3-NEXT:    movdqa %xmm2, %xmm1
-; SSE3-NEXT:    pand %xmm0, %xmm1
-; SSE3-NEXT:    psrlw $2, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    paddb %xmm1, %xmm2
-; SSE3-NEXT:    movdqa %xmm2, %xmm0
-; SSE3-NEXT:    psrlw $4, %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $1, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    psubb %xmm1, %xmm0
+; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE3-NEXT:    movdqa %xmm0, %xmm2
+; SSE3-NEXT:    pand %xmm1, %xmm2
+; SSE3-NEXT:    psrlw $2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm0
 ; SSE3-NEXT:    paddb %xmm2, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $4, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv16i8:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    psubb %xmm0, %xmm1
-; SSSE3-NEXT:    pand %xmm0, %xmm1
-; SSSE3-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSSE3-NEXT:    paddb %xmm1, %xmm2
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSSE3-NEXT:    movdqa %xmm2, %xmm3
-; SSSE3-NEXT:    pand %xmm1, %xmm3
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSSE3-NEXT:    movdqa %xmm0, %xmm4
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddb %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSSE3-NEXT:    movdqa %xmm0, %xmm3
+; SSSE3-NEXT:    pand %xmm2, %xmm3
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSSE3-NEXT:    movdqa %xmm1, %xmm4
 ; SSSE3-NEXT:    pshufb %xmm3, %xmm4
-; SSSE3-NEXT:    psrlw $4, %xmm2
-; SSSE3-NEXT:    pand %xmm1, %xmm2
-; SSSE3-NEXT:    pshufb %xmm2, %xmm0
-; SSSE3-NEXT:    paddb %xmm4, %xmm0
+; SSSE3-NEXT:    psrlw $4, %xmm0
+; SSSE3-NEXT:    pand %xmm2, %xmm0
+; SSSE3-NEXT:    pshufb %xmm0, %xmm1
+; SSSE3-NEXT:    paddb %xmm4, %xmm1
+; SSSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv16i8:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    psubb %xmm0, %xmm1
-; SSE41-NEXT:    pand %xmm0, %xmm1
-; SSE41-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSE41-NEXT:    paddb %xmm1, %xmm2
-; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSE41-NEXT:    movdqa %xmm2, %xmm3
-; SSE41-NEXT:    pand %xmm1, %xmm3
-; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSE41-NEXT:    movdqa %xmm0, %xmm4
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddb %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
+; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    movdqa %xmm0, %xmm3
+; SSE41-NEXT:    pand %xmm2, %xmm3
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSE41-NEXT:    movdqa %xmm1, %xmm4
 ; SSE41-NEXT:    pshufb %xmm3, %xmm4
-; SSE41-NEXT:    psrlw $4, %xmm2
-; SSE41-NEXT:    pand %xmm1, %xmm2
-; SSE41-NEXT:    pshufb %xmm2, %xmm0
-; SSE41-NEXT:    paddb %xmm4, %xmm0
+; SSE41-NEXT:    psrlw $4, %xmm0
+; SSE41-NEXT:    pand %xmm2, %xmm0
+; SSE41-NEXT:    pshufb %xmm0, %xmm1
+; SSE41-NEXT:    paddb %xmm4, %xmm1
+; SSE41-NEXT:    movdqa %xmm1, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX-LABEL: testv16i8:
 ; AVX:       # %bb.0:
-; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; AVX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm2
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX-NEXT:    vpsrlw $4, %xmm0, %xmm0
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
 ; AVX-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
 ; AVX-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv16i8:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxbd {{.*#+}} zmm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero,xmm0[8],zero,zero,zero,xmm0[9],zero,zero,zero,xmm0[10],zero,zero,zero,xmm0[11],zero,zero,zero,xmm0[12],zero,zero,zero,xmm0[13],zero,zero,zero,xmm0[14],zero,zero,zero,xmm0[15],zero,zero,zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdb %zmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv16i8:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovzxbd {{.*#+}} zmm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero,xmm0[8],zero,zero,zero,xmm0[9],zero,zero,zero,xmm0[10],zero,zero,zero,xmm0[11],zero,zero,zero,xmm0[12],zero,zero,zero,xmm0[13],zero,zero,zero,xmm0[14],zero,zero,zero,xmm0[15],zero,zero,zero
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovdb %zmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv16i8:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv16i8:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; BITALG-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv16i8:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    psubb %xmm0, %xmm1
-; X32-SSE-NEXT:    pand %xmm0, %xmm1
-; X32-SSE-NEXT:    pcmpeqd %xmm2, %xmm2
-; X32-SSE-NEXT:    paddb %xmm1, %xmm2
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-SSE-NEXT:    movdqa %xmm2, %xmm3
-; X32-SSE-NEXT:    pand %xmm1, %xmm3
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-SSE-NEXT:    movdqa %xmm0, %xmm4
+; X32-SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; X32-SSE-NEXT:    paddb %xmm0, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm3
+; X32-SSE-NEXT:    pand %xmm2, %xmm3
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-SSE-NEXT:    movdqa %xmm1, %xmm4
 ; X32-SSE-NEXT:    pshufb %xmm3, %xmm4
-; X32-SSE-NEXT:    psrlw $4, %xmm2
-; X32-SSE-NEXT:    pand %xmm1, %xmm2
-; X32-SSE-NEXT:    pshufb %xmm2, %xmm0
-; X32-SSE-NEXT:    paddb %xmm4, %xmm0
+; X32-SSE-NEXT:    psrlw $4, %xmm0
+; X32-SSE-NEXT:    pand %xmm2, %xmm0
+; X32-SSE-NEXT:    pshufb %xmm0, %xmm1
+; X32-SSE-NEXT:    paddb %xmm4, %xmm1
+; X32-SSE-NEXT:    movdqa %xmm1, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <16 x i8> @llvm.cttz.v16i8(<16 x i8> %in, i1 0)
   ret <16 x i8> %out
 }
 
 define <16 x i8> @testv16i8u(<16 x i8> %in) nounwind {
 ; SSE2-LABEL: testv16i8u:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    pxor %xmm1, %xmm1
-; SSE2-NEXT:    psubb %xmm0, %xmm1
-; SSE2-NEXT:    pand %xmm0, %xmm1
-; SSE2-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSE2-NEXT:    paddb %xmm1, %xmm2
-; SSE2-NEXT:    movdqa %xmm2, %xmm0
-; SSE2-NEXT:    psrlw $1, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE2-NEXT:    psubb %xmm0, %xmm2
-; SSE2-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE2-NEXT:    movdqa %xmm2, %xmm1
-; SSE2-NEXT:    pand %xmm0, %xmm1
-; SSE2-NEXT:    psrlw $2, %xmm2
-; SSE2-NEXT:    pand %xmm0, %xmm2
-; SSE2-NEXT:    paddb %xmm1, %xmm2
-; SSE2-NEXT:    movdqa %xmm2, %xmm0
-; SSE2-NEXT:    psrlw $4, %xmm0
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pandn %xmm1, %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $1, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    psubb %xmm1, %xmm0
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE2-NEXT:    movdqa %xmm0, %xmm2
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    psrlw $2, %xmm0
+; SSE2-NEXT:    pand %xmm1, %xmm0
 ; SSE2-NEXT:    paddb %xmm2, %xmm0
-; SSE2-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
+; SSE2-NEXT:    psrlw $4, %xmm1
+; SSE2-NEXT:    paddb %xmm0, %xmm1
+; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    retq
 ;
 ; SSE3-LABEL: testv16i8u:
 ; SSE3:       # %bb.0:
-; SSE3-NEXT:    pxor %xmm1, %xmm1
-; SSE3-NEXT:    psubb %xmm0, %xmm1
-; SSE3-NEXT:    pand %xmm0, %xmm1
-; SSE3-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSE3-NEXT:    paddb %xmm1, %xmm2
-; SSE3-NEXT:    movdqa %xmm2, %xmm0
-; SSE3-NEXT:    psrlw $1, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
-; SSE3-NEXT:    psubb %xmm0, %xmm2
-; SSE3-NEXT:    movdqa {{.*#+}} xmm0 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
-; SSE3-NEXT:    movdqa %xmm2, %xmm1
-; SSE3-NEXT:    pand %xmm0, %xmm1
-; SSE3-NEXT:    psrlw $2, %xmm2
-; SSE3-NEXT:    pand %xmm0, %xmm2
-; SSE3-NEXT:    paddb %xmm1, %xmm2
-; SSE3-NEXT:    movdqa %xmm2, %xmm0
-; SSE3-NEXT:    psrlw $4, %xmm0
+; SSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pandn %xmm1, %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $1, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    psubb %xmm1, %xmm0
+; SSE3-NEXT:    movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
+; SSE3-NEXT:    movdqa %xmm0, %xmm2
+; SSE3-NEXT:    pand %xmm1, %xmm2
+; SSE3-NEXT:    psrlw $2, %xmm0
+; SSE3-NEXT:    pand %xmm1, %xmm0
 ; SSE3-NEXT:    paddb %xmm2, %xmm0
-; SSE3-NEXT:    pand {{.*}}(%rip), %xmm0
+; SSE3-NEXT:    movdqa %xmm0, %xmm1
+; SSE3-NEXT:    psrlw $4, %xmm1
+; SSE3-NEXT:    paddb %xmm0, %xmm1
+; SSE3-NEXT:    pand {{.*}}(%rip), %xmm1
+; SSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSE3-NEXT:    retq
 ;
 ; SSSE3-LABEL: testv16i8u:
 ; SSSE3:       # %bb.0:
-; SSSE3-NEXT:    pxor %xmm1, %xmm1
-; SSSE3-NEXT:    psubb %xmm0, %xmm1
-; SSSE3-NEXT:    pand %xmm0, %xmm1
-; SSSE3-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSSE3-NEXT:    paddb %xmm1, %xmm2
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSSE3-NEXT:    movdqa %xmm2, %xmm3
-; SSSE3-NEXT:    pand %xmm1, %xmm3
-; SSSE3-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSSE3-NEXT:    movdqa %xmm0, %xmm4
+; SSSE3-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSSE3-NEXT:    paddb %xmm0, %xmm1
+; SSSE3-NEXT:    pandn %xmm1, %xmm0
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSSE3-NEXT:    movdqa %xmm0, %xmm3
+; SSSE3-NEXT:    pand %xmm2, %xmm3
+; SSSE3-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSSE3-NEXT:    movdqa %xmm1, %xmm4
 ; SSSE3-NEXT:    pshufb %xmm3, %xmm4
-; SSSE3-NEXT:    psrlw $4, %xmm2
-; SSSE3-NEXT:    pand %xmm1, %xmm2
-; SSSE3-NEXT:    pshufb %xmm2, %xmm0
-; SSSE3-NEXT:    paddb %xmm4, %xmm0
+; SSSE3-NEXT:    psrlw $4, %xmm0
+; SSSE3-NEXT:    pand %xmm2, %xmm0
+; SSSE3-NEXT:    pshufb %xmm0, %xmm1
+; SSSE3-NEXT:    paddb %xmm4, %xmm1
+; SSSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSSE3-NEXT:    retq
 ;
 ; SSE41-LABEL: testv16i8u:
 ; SSE41:       # %bb.0:
-; SSE41-NEXT:    pxor %xmm1, %xmm1
-; SSE41-NEXT:    psubb %xmm0, %xmm1
-; SSE41-NEXT:    pand %xmm0, %xmm1
-; SSE41-NEXT:    pcmpeqd %xmm2, %xmm2
-; SSE41-NEXT:    paddb %xmm1, %xmm2
-; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; SSE41-NEXT:    movdqa %xmm2, %xmm3
-; SSE41-NEXT:    pand %xmm1, %xmm3
-; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; SSE41-NEXT:    movdqa %xmm0, %xmm4
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    paddb %xmm0, %xmm1
+; SSE41-NEXT:    pandn %xmm1, %xmm0
+; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; SSE41-NEXT:    movdqa %xmm0, %xmm3
+; SSE41-NEXT:    pand %xmm2, %xmm3
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; SSE41-NEXT:    movdqa %xmm1, %xmm4
 ; SSE41-NEXT:    pshufb %xmm3, %xmm4
-; SSE41-NEXT:    psrlw $4, %xmm2
-; SSE41-NEXT:    pand %xmm1, %xmm2
-; SSE41-NEXT:    pshufb %xmm2, %xmm0
-; SSE41-NEXT:    paddb %xmm4, %xmm0
+; SSE41-NEXT:    psrlw $4, %xmm0
+; SSE41-NEXT:    pand %xmm2, %xmm0
+; SSE41-NEXT:    pshufb %xmm0, %xmm1
+; SSE41-NEXT:    paddb %xmm4, %xmm1
+; SSE41-NEXT:    movdqa %xmm1, %xmm0
 ; SSE41-NEXT:    retq
 ;
 ; AVX-LABEL: testv16i8u:
 ; AVX:       # %bb.0:
-; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; AVX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm2
 ; AVX-NEXT:    vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX-NEXT:    vpshufb %xmm2, %xmm3, %xmm2
 ; AVX-NEXT:    vpsrlw $4, %xmm0, %xmm0
 ; AVX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX-NEXT:    vpshufb %xmm0, %xmm3, %xmm0
 ; AVX-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
 ; AVX-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv16i8u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxbd {{.*#+}} zmm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero,xmm0[8],zero,zero,zero,xmm0[9],zero,zero,zero,xmm0[10],zero,zero,zero,xmm0[11],zero,zero,zero,xmm0[12],zero,zero,zero,xmm0[13],zero,zero,zero,xmm0[14],zero,zero,zero,xmm0[15],zero,zero,zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdb %zmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv16i8u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovzxbd {{.*#+}} zmm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero,xmm0[8],zero,zero,zero,xmm0[9],zero,zero,zero,xmm0[10],zero,zero,zero,xmm0[11],zero,zero,zero,xmm0[12],zero,zero,zero,xmm0[13],zero,zero,zero,xmm0[14],zero,zero,zero,xmm0[15],zero,zero,zero
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovdb %zmm0, %xmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv16i8u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; BITALG_NOVLX-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    vzeroupper
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv16i8u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
-; BITALG-NEXT:    vpand %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpaddb %xmm1, %xmm0, %xmm1
+; BITALG-NEXT:    vpandn %xmm1, %xmm0, %xmm0
 ; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-SSE-LABEL: testv16i8u:
 ; X32-SSE:       # %bb.0:
-; X32-SSE-NEXT:    pxor %xmm1, %xmm1
-; X32-SSE-NEXT:    psubb %xmm0, %xmm1
-; X32-SSE-NEXT:    pand %xmm0, %xmm1
-; X32-SSE-NEXT:    pcmpeqd %xmm2, %xmm2
-; X32-SSE-NEXT:    paddb %xmm1, %xmm2
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-SSE-NEXT:    movdqa %xmm2, %xmm3
-; X32-SSE-NEXT:    pand %xmm1, %xmm3
-; X32-SSE-NEXT:    movdqa {{.*#+}} xmm0 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-SSE-NEXT:    movdqa %xmm0, %xmm4
+; X32-SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; X32-SSE-NEXT:    paddb %xmm0, %xmm1
+; X32-SSE-NEXT:    pandn %xmm1, %xmm0
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-SSE-NEXT:    movdqa %xmm0, %xmm3
+; X32-SSE-NEXT:    pand %xmm2, %xmm3
+; X32-SSE-NEXT:    movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-SSE-NEXT:    movdqa %xmm1, %xmm4
 ; X32-SSE-NEXT:    pshufb %xmm3, %xmm4
-; X32-SSE-NEXT:    psrlw $4, %xmm2
-; X32-SSE-NEXT:    pand %xmm1, %xmm2
-; X32-SSE-NEXT:    pshufb %xmm2, %xmm0
-; X32-SSE-NEXT:    paddb %xmm4, %xmm0
+; X32-SSE-NEXT:    psrlw $4, %xmm0
+; X32-SSE-NEXT:    pand %xmm2, %xmm0
+; X32-SSE-NEXT:    pshufb %xmm0, %xmm1
+; X32-SSE-NEXT:    paddb %xmm4, %xmm1
+; X32-SSE-NEXT:    movdqa %xmm1, %xmm0
 ; X32-SSE-NEXT:    retl
   %out = call <16 x i8> @llvm.cttz.v16i8(<16 x i8> %in, i1 -1)
   ret <16 x i8> %out
 }
 
 define <2 x i64> @foldv2i64() nounwind {
 ; SSE-LABEL: foldv2i64:
 ; SSE:       # %bb.0:

llvm/trunk/test/CodeGen/X86/vector-tzcnt-256.ll

 ;
 ; Just one 32-bit run to make sure we do reasonable things for i64 tzcnt.
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=X32-AVX --check-prefix=X32-AVX2
 
 define <4 x i64> @testv4i64(<4 x i64> %in) nounwind {
 ; AVX1-LABEL: testv4i64:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX1-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpsubq %xmm1, %xmm2, %xmm3
-; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddq %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpaddq %xmm2, %xmm1, %xmm3
+; AVX1-NEXT:    vpandn %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
-; AVX1-NEXT:    vpaddb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubq %xmm0, %xmm2, %xmm5
-; AVX1-NEXT:    vpand %xmm5, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddq %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm3
-; AVX1-NEXT:    vpshufb %xmm3, %xmm6, %xmm3
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
+; AVX1-NEXT:    vpaddb %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpxor %xmm4, %xmm4, %xmm4
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddq %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv4i64:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX2-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX2-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX2-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv4i64:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; AVX512CDVL-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX512CDVL-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CDVL-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CDVL-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX512CDVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX512CDVL-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX512CDVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CDVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX512CDVL-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX512CDVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDVL-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv4i64:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX512CD-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX512CD-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX512CD-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX512CD-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CD-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv4i64:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubq %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddq %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntq %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv4i64:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubq %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddq %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntq %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv4i64:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; BITALG_NOVLX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG_NOVLX-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv4i64:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; BITALG-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
+; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv4i64:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpsubq {{\.LCPI.*}}, %ymm0, %ymm0
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-AVX-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; X32-AVX-NEXT:    vpsubq {{\.LCPI.*}}, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; X32-AVX-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; X32-AVX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <4 x i64> @llvm.cttz.v4i64(<4 x i64> %in, i1 0)
   ret <4 x i64> %out
 }
 
 define <4 x i64> @testv4i64u(<4 x i64> %in) nounwind {
 ; AVX1-LABEL: testv4i64u:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX1-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpsubq %xmm1, %xmm2, %xmm3
-; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddq %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpaddq %xmm2, %xmm1, %xmm3
+; AVX1-NEXT:    vpandn %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
-; AVX1-NEXT:    vpaddb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubq %xmm0, %xmm2, %xmm5
-; AVX1-NEXT:    vpand %xmm5, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddq %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm3
-; AVX1-NEXT:    vpshufb %xmm3, %xmm6, %xmm3
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
+; AVX1-NEXT:    vpaddb %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpxor %xmm4, %xmm4, %xmm4
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddq %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv4i64u:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX2-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX2-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX2-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv4i64u:
 ; AVX512CDVL:       # %bb.0:
 ; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDVL-NEXT:    vpsubq %ymm0, %ymm1, %ymm1
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0

 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vplzcntq %zmm0, %zmm0
 ; AVX512CD-NEXT:    vpbroadcastq {{.*#+}} ymm1 = [63,63,63,63]
 ; AVX512CD-NEXT:    vpsubq %ymm0, %ymm1, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv4i64u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubq %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddq %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntq %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv4i64u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubq %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddq %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntq %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv4i64u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; BITALG_NOVLX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG_NOVLX-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv4i64u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; BITALG-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG-NEXT:    vpaddq %ymm2, %ymm0, %ymm0
+; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG-NEXT:    vpaddq %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv4i64u:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubq %ymm0, %ymm1, %ymm2
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpsubq {{\.LCPI.*}}, %ymm0, %ymm0
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-AVX-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; X32-AVX-NEXT:    vpsubq {{\.LCPI.*}}, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; X32-AVX-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; X32-AVX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <4 x i64> @llvm.cttz.v4i64(<4 x i64> %in, i1 -1)
   ret <4 x i64> %out
 }
 
 define <8 x i32> @testv8i32(<8 x i32> %in) nounwind {
 ; AVX1-LABEL: testv8i32:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX1-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpsubd %xmm1, %xmm2, %xmm3
-; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddd %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpaddd %xmm2, %xmm1, %xmm3
+; AVX1-NEXT:    vpandn %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
-; AVX1-NEXT:    vpaddb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm5 = xmm1[2],xmm2[2],xmm1[3],xmm2[3]
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm5, %xmm5
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
+; AVX1-NEXT:    vpaddb %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpxor %xmm4, %xmm4, %xmm4
+; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm6 = xmm1[2],xmm4[2],xmm1[3],xmm4[3]
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm6, %xmm6
 ; AVX1-NEXT:    vpmovzxdq {{.*#+}} xmm1 = xmm1[0],zero,xmm1[1],zero
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm1, %xmm1
-; AVX1-NEXT:    vpackuswb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubd %xmm0, %xmm2, %xmm5
-; AVX1-NEXT:    vpand %xmm5, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddd %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm3
-; AVX1-NEXT:    vpshufb %xmm3, %xmm6, %xmm3
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpackuswb %xmm6, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddd %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm3 = xmm0[2],xmm2[2],xmm0[3],xmm2[3]
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm3, %xmm3
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm4[2],xmm0[3],xmm4[3]
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm2, %xmm2
 ; AVX1-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpackuswb %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm0, %xmm0
+; AVX1-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv8i32:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX2-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX2-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX2-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; AVX2-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; AVX2-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; AVX2-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv8i32:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; AVX512CDVL-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX512CDVL-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CDVL-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CDVL-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX512CDVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX512CDVL-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX512CDVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CDVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX512CDVL-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX512CDVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDVL-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; AVX512CDVL-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; AVX512CDVL-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; AVX512CDVL-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv8i32:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX512CD-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX512CD-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX512CD-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX512CD-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CD-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; AVX512CD-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; AVX512CD-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; AVX512CD-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv8i32:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubd %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddd %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv8i32:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubd %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddd %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv8i32:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; BITALG_NOVLX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG_NOVLX-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; BITALG_NOVLX-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; BITALG_NOVLX-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; BITALG_NOVLX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv8i32:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; BITALG-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
+; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; BITALG-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; BITALG-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; BITALG-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv8i32:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; X32-AVX-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-AVX-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; X32-AVX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; X32-AVX-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; X32-AVX-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; X32-AVX-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; X32-AVX-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; X32-AVX-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; X32-AVX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <8 x i32> @llvm.cttz.v8i32(<8 x i32> %in, i1 0)
   ret <8 x i32> %out
 }
 
 define <8 x i32> @testv8i32u(<8 x i32> %in) nounwind {
 ; AVX1-LABEL: testv8i32u:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX1-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpsubd %xmm1, %xmm2, %xmm3
-; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddd %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpaddd %xmm2, %xmm1, %xmm3
+; AVX1-NEXT:    vpandn %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
-; AVX1-NEXT:    vpaddb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm5 = xmm1[2],xmm2[2],xmm1[3],xmm2[3]
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm5, %xmm5
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
+; AVX1-NEXT:    vpaddb %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpxor %xmm4, %xmm4, %xmm4
+; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm6 = xmm1[2],xmm4[2],xmm1[3],xmm4[3]
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm6, %xmm6
 ; AVX1-NEXT:    vpmovzxdq {{.*#+}} xmm1 = xmm1[0],zero,xmm1[1],zero
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm1, %xmm1
-; AVX1-NEXT:    vpackuswb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubd %xmm0, %xmm2, %xmm5
-; AVX1-NEXT:    vpand %xmm5, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddd %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm3
-; AVX1-NEXT:    vpshufb %xmm3, %xmm6, %xmm3
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpackuswb %xmm6, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddd %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm3 = xmm0[2],xmm2[2],xmm0[3],xmm2[3]
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm3, %xmm3
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm4[2],xmm0[3],xmm4[3]
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm2, %xmm2
 ; AVX1-NEXT:    vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
-; AVX1-NEXT:    vpsadbw %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpackuswb %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpsadbw %xmm4, %xmm0, %xmm0
+; AVX1-NEXT:    vpackuswb %xmm2, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv8i32u:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; AVX2-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; AVX2-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX2-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; AVX2-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX2-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; AVX2-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; AVX2-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX2-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; AVX2-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; AVX2-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; AVX2-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv8i32u:

 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vplzcntd %zmm0, %zmm0
 ; AVX512CD-NEXT:    vpbroadcastd {{.*#+}} ymm1 = [31,31,31,31,31,31,31,31]
 ; AVX512CD-NEXT:    vpsubd %ymm0, %ymm1, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv8i32u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubd %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddd %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv8i32u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubd %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddd %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv8i32u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; BITALG_NOVLX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG_NOVLX-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG_NOVLX-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; BITALG_NOVLX-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; BITALG_NOVLX-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; BITALG_NOVLX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv8i32u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; BITALG-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; BITALG-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; BITALG-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
+; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; BITALG-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; BITALG-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; BITALG-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv8i32u:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubd %ymm0, %ymm1, %ymm2
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
-; X32-AVX-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm3
-; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; X32-AVX-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
+; X32-AVX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; X32-AVX-NEXT:    vpaddd %ymm1, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
+; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpand %ymm2, %ymm0, %ymm0
-; X32-AVX-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
-; X32-AVX-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
+; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; X32-AVX-NEXT:    vpunpckhdq {{.*#+}} ymm2 = ymm0[2],ymm1[2],ymm0[3],ymm1[3],ymm0[6],ymm1[6],ymm0[7],ymm1[7]
 ; X32-AVX-NEXT:    vpsadbw %ymm1, %ymm2, %ymm2
 ; X32-AVX-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm1[0],ymm0[1],ymm1[1],ymm0[4],ymm1[4],ymm0[5],ymm1[5]
 ; X32-AVX-NEXT:    vpsadbw %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <8 x i32> @llvm.cttz.v8i32(<8 x i32> %in, i1 -1)
   ret <8 x i32> %out
 }
 
 define <16 x i16> @testv16i16(<16 x i16> %in) nounwind {
 ; AVX1-LABEL: testv16i16:
 ; AVX1:       # %bb.0:
-; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubw %xmm0, %xmm1, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm2
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddw %xmm3, %xmm2, %xmm2
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm2, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddw %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm2, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm2, %xmm2
-; AVX1-NEXT:    vpand %xmm4, %xmm2, %xmm2
-; AVX1-NEXT:    vpshufb %xmm2, %xmm6, %xmm2
-; AVX1-NEXT:    vpaddb %xmm5, %xmm2, %xmm2
-; AVX1-NEXT:    vpsllw $8, %xmm2, %xmm5
-; AVX1-NEXT:    vpaddb %xmm2, %xmm5, %xmm2
+; AVX1-NEXT:    vpand %xmm3, %xmm2, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
+; AVX1-NEXT:    vpaddb %xmm4, %xmm2, %xmm2
+; AVX1-NEXT:    vpsllw $8, %xmm2, %xmm4
+; AVX1-NEXT:    vpaddb %xmm2, %xmm4, %xmm2
 ; AVX1-NEXT:    vpsrlw $8, %xmm2, %xmm2
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
-; AVX1-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddw %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
+; AVX1-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX1-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
 ; AVX1-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
 ; AVX1-NEXT:    vpsllw $8, %xmm0, %xmm1
 ; AVX1-NEXT:    vpaddb %xmm0, %xmm1, %xmm0
 ; AVX1-NEXT:    vpsrlw $8, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm2, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv16i16:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX2-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; AVX2-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; AVX2-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv16i16:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512CDVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CDVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; AVX512CDVL-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; AVX512CDVL-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv16i16:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512CD-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CD-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; AVX512CD-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv16i16:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv16i16:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv16i16:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv16i16:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; BITALG-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntw %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv16i16:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; X32-AVX-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; X32-AVX-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <16 x i16> @llvm.cttz.v16i16(<16 x i16> %in, i1 0)
   ret <16 x i16> %out
 }
 
 define <16 x i16> @testv16i16u(<16 x i16> %in) nounwind {
 ; AVX1-LABEL: testv16i16u:
 ; AVX1:       # %bb.0:
-; AVX1-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubw %xmm0, %xmm1, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm2
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddw %xmm3, %xmm2, %xmm2
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm2, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddw %xmm1, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm2, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm2, %xmm2
-; AVX1-NEXT:    vpand %xmm4, %xmm2, %xmm2
-; AVX1-NEXT:    vpshufb %xmm2, %xmm6, %xmm2
-; AVX1-NEXT:    vpaddb %xmm5, %xmm2, %xmm2
-; AVX1-NEXT:    vpsllw $8, %xmm2, %xmm5
-; AVX1-NEXT:    vpaddb %xmm2, %xmm5, %xmm2
+; AVX1-NEXT:    vpand %xmm3, %xmm2, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
+; AVX1-NEXT:    vpaddb %xmm4, %xmm2, %xmm2
+; AVX1-NEXT:    vpsllw $8, %xmm2, %xmm4
+; AVX1-NEXT:    vpaddb %xmm2, %xmm4, %xmm2
 ; AVX1-NEXT:    vpsrlw $8, %xmm2, %xmm2
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm0
-; AVX1-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm1, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddw %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
+; AVX1-NEXT:    vpaddw %xmm1, %xmm0, %xmm1
+; AVX1-NEXT:    vpandn %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
 ; AVX1-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
 ; AVX1-NEXT:    vpsllw $8, %xmm0, %xmm1
 ; AVX1-NEXT:    vpaddb %xmm0, %xmm1, %xmm0
 ; AVX1-NEXT:    vpsrlw $8, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm2, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv16i16u:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX2-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; AVX2-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; AVX2-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv16i16u:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512CDVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CDVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; AVX512CDVL-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; AVX512CDVL-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv16i16u:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512CD-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CD-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; AVX512CD-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv16i16u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv16i16u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
 ; AVX512VPOPCNTDQVL-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv16i16u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv16i16u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; BITALG-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntw %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv16i16u:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpaddw %ymm1, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpsllw $8, %ymm0, %ymm1
 ; X32-AVX-NEXT:    vpaddb %ymm0, %ymm1, %ymm0
 ; X32-AVX-NEXT:    vpsrlw $8, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <16 x i16> @llvm.cttz.v16i16(<16 x i16> %in, i1 -1)
   ret <16 x i16> %out
 }
 
 define <32 x i8> @testv32i8(<32 x i8> %in) nounwind {
 ; AVX1-LABEL: testv32i8:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX1-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpsubb %xmm1, %xmm2, %xmm3
-; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddb %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpaddb %xmm2, %xmm1, %xmm3
+; AVX1-NEXT:    vpandn %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
-; AVX1-NEXT:    vpaddb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubb %xmm0, %xmm2, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm2
-; AVX1-NEXT:    vpshufb %xmm2, %xmm6, %xmm2
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
+; AVX1-NEXT:    vpaddb %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
 ; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv32i8:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX2-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv32i8:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512CDVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CDVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv32i8:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512CD-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CD-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv32i8:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512VPOPCNTDQ-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv32i8:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512VPOPCNTDQVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512VPOPCNTDQVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512VPOPCNTDQVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv32i8:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv32i8:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; BITALG-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv32i8:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; X32-AVX-NEXT:    retl
   %out = call <32 x i8> @llvm.cttz.v32i8(<32 x i8> %in, i1 0)
   ret <32 x i8> %out
 }
 
 define <32 x i8> @testv32i8u(<32 x i8> %in) nounwind {
 ; AVX1-LABEL: testv32i8u:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX1-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX1-NEXT:    vpsubb %xmm1, %xmm2, %xmm3
-; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vpcmpeqd %xmm3, %xmm3, %xmm3
-; AVX1-NEXT:    vpaddb %xmm3, %xmm1, %xmm1
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm5
-; AVX1-NEXT:    vmovdqa {{.*#+}} xmm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX1-NEXT:    vpshufb %xmm5, %xmm6, %xmm5
+; AVX1-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX1-NEXT:    vpaddb %xmm2, %xmm1, %xmm3
+; AVX1-NEXT:    vpandn %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm4
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX1-NEXT:    vpshufb %xmm4, %xmm5, %xmm4
 ; AVX1-NEXT:    vpsrlw $4, %xmm1, %xmm1
-; AVX1-NEXT:    vpand %xmm4, %xmm1, %xmm1
-; AVX1-NEXT:    vpshufb %xmm1, %xmm6, %xmm1
-; AVX1-NEXT:    vpaddb %xmm5, %xmm1, %xmm1
-; AVX1-NEXT:    vpsubb %xmm0, %xmm2, %xmm2
-; AVX1-NEXT:    vpand %xmm2, %xmm0, %xmm0
-; AVX1-NEXT:    vpaddb %xmm3, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm2
-; AVX1-NEXT:    vpshufb %xmm2, %xmm6, %xmm2
+; AVX1-NEXT:    vpand %xmm3, %xmm1, %xmm1
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm1
+; AVX1-NEXT:    vpaddb %xmm4, %xmm1, %xmm1
+; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpandn %xmm2, %xmm0, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm2
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm2
 ; AVX1-NEXT:    vpsrlw $4, %xmm0, %xmm0
-; AVX1-NEXT:    vpand %xmm4, %xmm0, %xmm0
-; AVX1-NEXT:    vpshufb %xmm0, %xmm6, %xmm0
+; AVX1-NEXT:    vpand %xmm3, %xmm0, %xmm0
+; AVX1-NEXT:    vpshufb %xmm0, %xmm5, %xmm0
 ; AVX1-NEXT:    vpaddb %xmm2, %xmm0, %xmm0
 ; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: testv32i8u:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX2-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX2-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX2-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX2-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX2-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX2-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX2-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX2-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX2-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512CDVL-LABEL: testv32i8u:
 ; AVX512CDVL:       # %bb.0:
-; AVX512CDVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDVL-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CDVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512CDVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512CDVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CDVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CDVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CDVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CDVL-NEXT:    retq
 ;
 ; AVX512CD-LABEL: testv32i8u:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512CD-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CD-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv32i8u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512VPOPCNTDQ-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQVL-LABEL: testv32i8u:
 ; AVX512VPOPCNTDQVL:       # %bb.0:
-; AVX512VPOPCNTDQVL-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQVL-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; AVX512VPOPCNTDQVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; AVX512VPOPCNTDQVL-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; AVX512VPOPCNTDQVL-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; AVX512VPOPCNTDQVL-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512VPOPCNTDQVL-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; AVX512VPOPCNTDQVL-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512VPOPCNTDQVL-NEXT:    retq
 ;
 ; BITALG_NOVLX-LABEL: testv32i8u:
 ; BITALG_NOVLX:       # %bb.0:
-; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG_NOVLX-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG_NOVLX-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; BITALG_NOVLX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
 ; BITALG_NOVLX-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; BITALG_NOVLX-NEXT:    retq
 ;
 ; BITALG-LABEL: testv32i8u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; BITALG-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; BITALG-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; BITALG-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
 ; BITALG-NEXT:    retq
 ;
 ; X32-AVX-LABEL: testv32i8u:
 ; X32-AVX:       # %bb.0:
-; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; X32-AVX-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
-; X32-AVX-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; X32-AVX-NEXT:    vpaddb %ymm1, %ymm0, %ymm1
+; X32-AVX-NEXT:    vpandn %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm2
 ; X32-AVX-NEXT:    vmovdqa {{.*#+}} ymm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; X32-AVX-NEXT:    vpshufb %ymm2, %ymm3, %ymm2
 ; X32-AVX-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpand %ymm1, %ymm0, %ymm0
 ; X32-AVX-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; X32-AVX-NEXT:    vpaddb %ymm2, %ymm0, %ymm0

llvm/trunk/test/CodeGen/X86/vector-tzcnt-512.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512cd | FileCheck %s --check-prefix=ALL --check-prefix=AVX512CD
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512cd,+avx512bw | FileCheck %s --check-prefix=ALL --check-prefix=AVX512CDBW
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512bw | FileCheck %s --check-prefix=ALL --check-prefix=AVX512BW
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=ALL --check-prefix=AVX512VPOPCNTDQ
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 
 define <8 x i64> @testv8i64(<8 x i64> %in) nounwind {
 ; AVX512CD-LABEL: testv8i64:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubq %zmm0, %zmm1, %zmm1
-; AVX512CD-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CD-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512CD-NEXT:    vpaddq %zmm1, %zmm0, %zmm0
+; AVX512CD-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; AVX512CD-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512CD-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm3
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CD-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpshufb %ymm1, %ymm4, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm3, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpxor %xmm3, %xmm3, %xmm3
 ; AVX512CD-NEXT:    vpsadbw %ymm3, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm5
 ; AVX512CD-NEXT:    vpshufb %ymm5, %ymm4, %ymm5
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpand %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpshufb %ymm0, %ymm4, %ymm0
 ; AVX512CD-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpsadbw %ymm3, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vinserti64x4 $1, %ymm1, %zmm0, %zmm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512CDBW-LABEL: testv8i64:
 ; AVX512CDBW:       # %bb.0:
-; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDBW-NEXT:    vpsubq %zmm0, %zmm1, %zmm2
-; AVX512CDBW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; AVX512CDBW-NEXT:    vpaddq %zmm2, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CDBW-NEXT:    vpandq %zmm2, %zmm0, %zmm3
-; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CDBW-NEXT:    vpshufb %zmm3, %zmm4, %zmm3
+; AVX512CDBW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; AVX512CDBW-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; AVX512CDBW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
+; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CDBW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512CDBW-NEXT:    vpsrlw $4, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm4, %zmm0
-; AVX512CDBW-NEXT:    vpaddb %zmm3, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
+; AVX512CDBW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDBW-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv8i64:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubq %zmm0, %zmm1, %zmm2
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; AVX512BW-NEXT:    vpaddq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm3
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512BW-NEXT:    vpshufb %zmm3, %zmm4, %zmm3
+; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; AVX512BW-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpshufb %zmm0, %zmm4, %zmm0
-; AVX512BW-NEXT:    vpaddb %zmm3, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
+; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512BW-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv8i64:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubq %zmm0, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddq %zmm1, %zmm0, %zmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntq %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv8i64:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubq %zmm0, %zmm1, %zmm2
-; BITALG-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; BITALG-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; BITALG-NEXT:    vpaddq %zmm2, %zmm0, %zmm0
+; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; BITALG-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <8 x i64> @llvm.cttz.v8i64(<8 x i64> %in, i1 0)
   ret <8 x i64> %out
 }
 
 define <8 x i64> @testv8i64u(<8 x i64> %in) nounwind {
 ; AVX512CD-LABEL: testv8i64u:

 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vplzcntq %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpbroadcastq {{.*#+}} zmm1 = [63,63,63,63,63,63,63,63]
 ; AVX512CDBW-NEXT:    vpsubq %zmm0, %zmm1, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv8i64u:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubq %zmm0, %zmm1, %zmm2
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; AVX512BW-NEXT:    vpaddq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm3
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512BW-NEXT:    vpshufb %zmm3, %zmm4, %zmm3
+; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; AVX512BW-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpshufb %zmm0, %zmm4, %zmm0
-; AVX512BW-NEXT:    vpaddb %zmm3, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
+; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512BW-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv8i64u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubq %zmm0, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddq %zmm1, %zmm0, %zmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntq %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv8i64u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubq %zmm0, %zmm1, %zmm2
-; BITALG-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; BITALG-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; BITALG-NEXT:    vpaddq %zmm2, %zmm0, %zmm0
+; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; BITALG-NEXT:    vpaddq %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <8 x i64> @llvm.cttz.v8i64(<8 x i64> %in, i1 -1)
   ret <8 x i64> %out
 }
 
 define <16 x i32> @testv16i32(<16 x i32> %in) nounwind {
 ; AVX512CD-LABEL: testv16i32:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CD-NEXT:    vpsubd %zmm0, %zmm1, %zmm1
-; AVX512CD-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CD-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512CD-NEXT:    vpaddd %zmm1, %zmm0, %zmm0
+; AVX512CD-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; AVX512CD-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512CD-NEXT:    vextracti64x4 $1, %zmm0, %ymm1
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm3
 ; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CD-NEXT:    vpshufb %ymm3, %ymm4, %ymm3
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpshufb %ymm1, %ymm4, %ymm1

 ; AVX512CD-NEXT:    vpunpckldq {{.*#+}} ymm0 = ymm0[0],ymm3[0],ymm0[1],ymm3[1],ymm0[4],ymm3[4],ymm0[5],ymm3[5]
 ; AVX512CD-NEXT:    vpsadbw %ymm3, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vpackuswb %ymm2, %ymm0, %ymm0
 ; AVX512CD-NEXT:    vinserti64x4 $1, %ymm1, %zmm0, %zmm0
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512CDBW-LABEL: testv16i32:
 ; AVX512CDBW:       # %bb.0:
-; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDBW-NEXT:    vpsubd %zmm0, %zmm1, %zmm2
-; AVX512CDBW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; AVX512CDBW-NEXT:    vpaddd %zmm2, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CDBW-NEXT:    vpandq %zmm2, %zmm0, %zmm3
-; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CDBW-NEXT:    vpshufb %zmm3, %zmm4, %zmm3
+; AVX512CDBW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; AVX512CDBW-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; AVX512CDBW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
+; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CDBW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512CDBW-NEXT:    vpsrlw $4, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm4, %zmm0
-; AVX512CDBW-NEXT:    vpaddb %zmm3, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
+; AVX512CDBW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512CDBW-NEXT:    vpunpckhdq {{.*#+}} zmm2 = zmm0[2],zmm1[2],zmm0[3],zmm1[3],zmm0[6],zmm1[6],zmm0[7],zmm1[7],zmm0[10],zmm1[10],zmm0[11],zmm1[11],zmm0[14],zmm1[14],zmm0[15],zmm1[15]
 ; AVX512CDBW-NEXT:    vpsadbw %zmm1, %zmm2, %zmm2
 ; AVX512CDBW-NEXT:    vpunpckldq {{.*#+}} zmm0 = zmm0[0],zmm1[0],zmm0[1],zmm1[1],zmm0[4],zmm1[4],zmm0[5],zmm1[5],zmm0[8],zmm1[8],zmm0[9],zmm1[9],zmm0[12],zmm1[12],zmm0[13],zmm1[13]
 ; AVX512CDBW-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpackuswb %zmm2, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv16i32:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubd %zmm0, %zmm1, %zmm2
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; AVX512BW-NEXT:    vpaddd %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm3
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512BW-NEXT:    vpshufb %zmm3, %zmm4, %zmm3
+; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; AVX512BW-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpshufb %zmm0, %zmm4, %zmm0
-; AVX512BW-NEXT:    vpaddb %zmm3, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
+; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512BW-NEXT:    vpunpckhdq {{.*#+}} zmm2 = zmm0[2],zmm1[2],zmm0[3],zmm1[3],zmm0[6],zmm1[6],zmm0[7],zmm1[7],zmm0[10],zmm1[10],zmm0[11],zmm1[11],zmm0[14],zmm1[14],zmm0[15],zmm1[15]
 ; AVX512BW-NEXT:    vpsadbw %zmm1, %zmm2, %zmm2
 ; AVX512BW-NEXT:    vpunpckldq {{.*#+}} zmm0 = zmm0[0],zmm1[0],zmm0[1],zmm1[1],zmm0[4],zmm1[4],zmm0[5],zmm1[5],zmm0[8],zmm1[8],zmm0[9],zmm1[9],zmm0[12],zmm1[12],zmm0[13],zmm1[13]
 ; AVX512BW-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpackuswb %zmm2, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv16i32:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubd %zmm0, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddd %zmm1, %zmm0, %zmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv16i32:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubd %zmm0, %zmm1, %zmm2
-; BITALG-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; BITALG-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; BITALG-NEXT:    vpaddd %zmm2, %zmm0, %zmm0
+; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; BITALG-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpunpckhdq {{.*#+}} zmm2 = zmm0[2],zmm1[2],zmm0[3],zmm1[3],zmm0[6],zmm1[6],zmm0[7],zmm1[7],zmm0[10],zmm1[10],zmm0[11],zmm1[11],zmm0[14],zmm1[14],zmm0[15],zmm1[15]
 ; BITALG-NEXT:    vpsadbw %zmm1, %zmm2, %zmm2
 ; BITALG-NEXT:    vpunpckldq {{.*#+}} zmm0 = zmm0[0],zmm1[0],zmm0[1],zmm1[1],zmm0[4],zmm1[4],zmm0[5],zmm1[5],zmm0[8],zmm1[8],zmm0[9],zmm1[9],zmm0[12],zmm1[12],zmm0[13],zmm1[13]
 ; BITALG-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpackuswb %zmm2, %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <16 x i32> @llvm.cttz.v16i32(<16 x i32> %in, i1 0)
   ret <16 x i32> %out

 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vplzcntd %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpbroadcastd {{.*#+}} zmm1 = [31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31]
 ; AVX512CDBW-NEXT:    vpsubd %zmm0, %zmm1, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv16i32u:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubd %zmm0, %zmm1, %zmm2
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; AVX512BW-NEXT:    vpaddd %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm3
-; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm4 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512BW-NEXT:    vpshufb %zmm3, %zmm4, %zmm3
+; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; AVX512BW-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
+; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; AVX512BW-NEXT:    vpshufb %zmm0, %zmm4, %zmm0
-; AVX512BW-NEXT:    vpaddb %zmm3, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
+; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; AVX512BW-NEXT:    vpunpckhdq {{.*#+}} zmm2 = zmm0[2],zmm1[2],zmm0[3],zmm1[3],zmm0[6],zmm1[6],zmm0[7],zmm1[7],zmm0[10],zmm1[10],zmm0[11],zmm1[11],zmm0[14],zmm1[14],zmm0[15],zmm1[15]
 ; AVX512BW-NEXT:    vpsadbw %zmm1, %zmm2, %zmm2
 ; AVX512BW-NEXT:    vpunpckldq {{.*#+}} zmm0 = zmm0[0],zmm1[0],zmm0[1],zmm1[1],zmm0[4],zmm1[4],zmm0[5],zmm1[5],zmm0[8],zmm1[8],zmm0[9],zmm1[9],zmm0[12],zmm1[12],zmm0[13],zmm1[13]
 ; AVX512BW-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpackuswb %zmm2, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv16i32u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512VPOPCNTDQ-NEXT:    vpsubd %zmm0, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddd %zmm1, %zmm0, %zmm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; AVX512VPOPCNTDQ-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv16i32u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubd %zmm0, %zmm1, %zmm2
-; BITALG-NEXT:    vpandq %zmm2, %zmm0, %zmm0
-; BITALG-NEXT:    vpternlogd $255, %zmm2, %zmm2, %zmm2
-; BITALG-NEXT:    vpaddd %zmm2, %zmm0, %zmm0
+; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; BITALG-NEXT:    vpaddd %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
 ; BITALG-NEXT:    vpunpckhdq {{.*#+}} zmm2 = zmm0[2],zmm1[2],zmm0[3],zmm1[3],zmm0[6],zmm1[6],zmm0[7],zmm1[7],zmm0[10],zmm1[10],zmm0[11],zmm1[11],zmm0[14],zmm1[14],zmm0[15],zmm1[15]
 ; BITALG-NEXT:    vpsadbw %zmm1, %zmm2, %zmm2
 ; BITALG-NEXT:    vpunpckldq {{.*#+}} zmm0 = zmm0[0],zmm1[0],zmm0[1],zmm1[1],zmm0[4],zmm1[4],zmm0[5],zmm1[5],zmm0[8],zmm1[8],zmm0[9],zmm1[9],zmm0[12],zmm1[12],zmm0[13],zmm1[13]
 ; BITALG-NEXT:    vpsadbw %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpackuswb %zmm2, %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <16 x i32> @llvm.cttz.v16i32(<16 x i32> %in, i1 -1)
   ret <16 x i32> %out
 }
 
 define <32 x i16> @testv32i16(<32 x i16> %in) nounwind {
 ; AVX512CD-LABEL: testv32i16:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512CD-NEXT:    vpsubw %ymm0, %ymm2, %ymm3
-; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512CD-NEXT:    vpaddw %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm5
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %ymm5, %ymm6, %ymm5
+; AVX512CD-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512CD-NEXT:    vpaddw %ymm2, %ymm0, %ymm3
+; AVX512CD-NEXT:    vpandn %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm4
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %ymm4, %ymm5, %ymm4
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpshufb %ymm0, %ymm6, %ymm0
-; AVX512CD-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpsllw $8, %ymm0, %ymm5
-; AVX512CD-NEXT:    vpaddb %ymm0, %ymm5, %ymm0
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpshufb %ymm0, %ymm5, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm4, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpsllw $8, %ymm0, %ymm4
+; AVX512CD-NEXT:    vpaddb %ymm0, %ymm4, %ymm0
 ; AVX512CD-NEXT:    vpsrlw $8, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpsubw %ymm1, %ymm2, %ymm2
-; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddw %ymm3, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm2
-; AVX512CD-NEXT:    vpshufb %ymm2, %ymm6, %ymm2
+; AVX512CD-NEXT:    vpaddw %ymm2, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpandn %ymm2, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpshufb %ymm2, %ymm5, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpshufb %ymm1, %ymm5, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpsllw $8, %ymm1, %ymm2
 ; AVX512CD-NEXT:    vpaddb %ymm1, %ymm2, %ymm1
 ; AVX512CD-NEXT:    vpsrlw $8, %ymm1, %ymm1
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512CDBW-LABEL: testv32i16:
 ; AVX512CDBW:       # %bb.0:
-; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDBW-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpaddw %zmm1, %zmm0, %zmm1
+; AVX512CDBW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDBW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512CDBW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512CDBW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpsllw $8, %zmm0, %zmm1
 ; AVX512CDBW-NEXT:    vpaddb %zmm0, %zmm1, %zmm0
 ; AVX512CDBW-NEXT:    vpsrlw $8, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv32i16:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpaddw %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpsllw $8, %zmm0, %zmm1
 ; AVX512BW-NEXT:    vpaddb %zmm0, %zmm1, %zmm0
 ; AVX512BW-NEXT:    vpsrlw $8, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv32i16:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %ymm0, %ymm2, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm3, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm2, %ymm0, %ymm3
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm3, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %ymm1, %ymm2, %ymm2
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm3, %ymm1, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm2, %ymm1, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm2, %ymm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm1, %zmm1
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv32i16:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
-; BITALG-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; BITALG-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpaddw %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntw %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <32 x i16> @llvm.cttz.v32i16(<32 x i16> %in, i1 0)
   ret <32 x i16> %out
 }
 
 define <32 x i16> @testv32i16u(<32 x i16> %in) nounwind {
 ; AVX512CD-LABEL: testv32i16u:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512CD-NEXT:    vpsubw %ymm0, %ymm2, %ymm3
-; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512CD-NEXT:    vpaddw %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm5
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %ymm5, %ymm6, %ymm5
+; AVX512CD-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512CD-NEXT:    vpaddw %ymm2, %ymm0, %ymm3
+; AVX512CD-NEXT:    vpandn %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm4
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %ymm4, %ymm5, %ymm4
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpshufb %ymm0, %ymm6, %ymm0
-; AVX512CD-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpsllw $8, %ymm0, %ymm5
-; AVX512CD-NEXT:    vpaddb %ymm0, %ymm5, %ymm0
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpshufb %ymm0, %ymm5, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm4, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpsllw $8, %ymm0, %ymm4
+; AVX512CD-NEXT:    vpaddb %ymm0, %ymm4, %ymm0
 ; AVX512CD-NEXT:    vpsrlw $8, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpsubw %ymm1, %ymm2, %ymm2
-; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddw %ymm3, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm2
-; AVX512CD-NEXT:    vpshufb %ymm2, %ymm6, %ymm2
+; AVX512CD-NEXT:    vpaddw %ymm2, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpandn %ymm2, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpshufb %ymm2, %ymm5, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpshufb %ymm1, %ymm5, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512CD-NEXT:    vpsllw $8, %ymm1, %ymm2
 ; AVX512CD-NEXT:    vpaddb %ymm1, %ymm2, %ymm1
 ; AVX512CD-NEXT:    vpsrlw $8, %ymm1, %ymm1
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512CDBW-LABEL: testv32i16u:
 ; AVX512CDBW:       # %bb.0:
-; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDBW-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpaddw %zmm1, %zmm0, %zmm1
+; AVX512CDBW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDBW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512CDBW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512CDBW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpsllw $8, %zmm0, %zmm1
 ; AVX512CDBW-NEXT:    vpaddb %zmm0, %zmm1, %zmm0
 ; AVX512CDBW-NEXT:    vpsrlw $8, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv32i16u:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpaddw %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpsllw $8, %zmm0, %zmm1
 ; AVX512BW-NEXT:    vpaddb %zmm0, %zmm1, %zmm0
 ; AVX512BW-NEXT:    vpsrlw $8, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv32i16u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %ymm0, %ymm2, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm3, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm2, %ymm0, %ymm3
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm3, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpsubw %ymm1, %ymm2, %ymm2
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm3, %ymm1, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpaddw %ymm2, %ymm1, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm2, %ymm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm1, %zmm1
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv32i16u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
-; BITALG-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; BITALG-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpaddw %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntw %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <32 x i16> @llvm.cttz.v32i16(<32 x i16> %in, i1 -1)
   ret <32 x i16> %out
 }
 
 define <64 x i8> @testv64i8(<64 x i8> %in) nounwind {
 ; AVX512CD-LABEL: testv64i8:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512CD-NEXT:    vpsubb %ymm0, %ymm2, %ymm3
-; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512CD-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm5
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %ymm5, %ymm6, %ymm5
+; AVX512CD-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm3
+; AVX512CD-NEXT:    vpandn %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm4
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %ymm4, %ymm5, %ymm4
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpshufb %ymm0, %ymm6, %ymm0
-; AVX512CD-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpsubb %ymm1, %ymm2, %ymm2
-; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddb %ymm3, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm2
-; AVX512CD-NEXT:    vpshufb %ymm2, %ymm6, %ymm2
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpshufb %ymm0, %ymm5, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm4, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm2, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpandn %ymm2, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpshufb %ymm2, %ymm5, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpshufb %ymm1, %ymm5, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512CDBW-LABEL: testv64i8:
 ; AVX512CDBW:       # %bb.0:
-; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDBW-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpaddb %zmm1, %zmm0, %zmm1
+; AVX512CDBW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDBW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512CDBW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512CDBW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv64i8:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpaddb %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv64i8:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %ymm0, %ymm2, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm0, %ymm5
-; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm5, %ymm6, %ymm5
+; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm0, %ymm3
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm3, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm4
+; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm4, %ymm5, %ymm4
 ; AVX512VPOPCNTDQ-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm6, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %ymm1, %ymm2, %ymm2
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm3, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm1, %ymm2
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm2, %ymm6, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm5, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm4, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm1, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm2, %ymm1, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm1, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm2, %ymm5, %ymm2
 ; AVX512VPOPCNTDQ-NEXT:    vpsrlw $4, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm1, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm1, %ymm5, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv64i8:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
-; BITALG-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; BITALG-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpaddb %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <64 x i8> @llvm.cttz.v64i8(<64 x i8> %in, i1 0)
   ret <64 x i8> %out
 }
 
 define <64 x i8> @testv64i8u(<64 x i8> %in) nounwind {
 ; AVX512CD-LABEL: testv64i8u:
 ; AVX512CD:       # %bb.0:
-; AVX512CD-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512CD-NEXT:    vpsubb %ymm0, %ymm2, %ymm3
-; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512CD-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm5
-; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512CD-NEXT:    vpshufb %ymm5, %ymm6, %ymm5
+; AVX512CD-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512CD-NEXT:    vpaddb %ymm2, %ymm0, %ymm3
+; AVX512CD-NEXT:    vpandn %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm4
+; AVX512CD-NEXT:    vmovdqa {{.*#+}} ymm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512CD-NEXT:    vpshufb %ymm4, %ymm5, %ymm4
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpand %ymm4, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpshufb %ymm0, %ymm6, %ymm0
-; AVX512CD-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
-; AVX512CD-NEXT:    vpsubb %ymm1, %ymm2, %ymm2
-; AVX512CD-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpaddb %ymm3, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm2
-; AVX512CD-NEXT:    vpshufb %ymm2, %ymm6, %ymm2
+; AVX512CD-NEXT:    vpand %ymm3, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpshufb %ymm0, %ymm5, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm4, %ymm0, %ymm0
+; AVX512CD-NEXT:    vpaddb %ymm2, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpandn %ymm2, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm2
+; AVX512CD-NEXT:    vpshufb %ymm2, %ymm5, %ymm2
 ; AVX512CD-NEXT:    vpsrlw $4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpand %ymm4, %ymm1, %ymm1
-; AVX512CD-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
+; AVX512CD-NEXT:    vpand %ymm3, %ymm1, %ymm1
+; AVX512CD-NEXT:    vpshufb %ymm1, %ymm5, %ymm1
 ; AVX512CD-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512CD-NEXT:    retq
 ;
 ; AVX512CDBW-LABEL: testv64i8u:
 ; AVX512CDBW:       # %bb.0:
-; AVX512CDBW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512CDBW-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512CDBW-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; AVX512CDBW-NEXT:    vpaddb %zmm1, %zmm0, %zmm1
+; AVX512CDBW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512CDBW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512CDBW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512CDBW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512CDBW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512CDBW-NEXT:    retq
 ;
 ; AVX512BW-LABEL: testv64i8u:
 ; AVX512BW:       # %bb.0:
-; AVX512BW-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; AVX512BW-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; AVX512BW-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; AVX512BW-NEXT:    vpaddb %zmm1, %zmm0, %zmm1
+; AVX512BW-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm2
 ; AVX512BW-NEXT:    vmovdqa64 {{.*#+}} zmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
 ; AVX512BW-NEXT:    vpshufb %zmm2, %zmm3, %zmm2
 ; AVX512BW-NEXT:    vpsrlw $4, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; AVX512BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512BW-NEXT:    retq
 ;
 ; AVX512VPOPCNTDQ-LABEL: testv64i8u:
 ; AVX512VPOPCNTDQ:       # %bb.0:
-; AVX512VPOPCNTDQ-NEXT:    vpxor %xmm2, %xmm2, %xmm2
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %ymm0, %ymm2, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm3, %ymm3, %ymm3
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm3, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm4 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm0, %ymm5
-; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm6 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm5, %ymm6, %ymm5
+; AVX512VPOPCNTDQ-NEXT:    vpcmpeqd %ymm2, %ymm2, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm0, %ymm3
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm3, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm4
+; AVX512VPOPCNTDQ-NEXT:    vmovdqa {{.*#+}} ymm5 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm4, %ymm5, %ymm4
 ; AVX512VPOPCNTDQ-NEXT:    vpsrlw $4, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm6, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm5, %ymm0, %ymm0
-; AVX512VPOPCNTDQ-NEXT:    vpsubb %ymm1, %ymm2, %ymm2
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm2, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm3, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm1, %ymm2
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm2, %ymm6, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm5, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm4, %ymm0, %ymm0
+; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm1, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpandn %ymm2, %ymm1, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm1, %ymm2
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm2, %ymm5, %ymm2
 ; AVX512VPOPCNTDQ-NEXT:    vpsrlw $4, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpand %ymm4, %ymm1, %ymm1
-; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpand %ymm3, %ymm1, %ymm1
+; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm1, %ymm5, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
 ; BITALG-LABEL: testv64i8u:
 ; BITALG:       # %bb.0:
-; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
-; BITALG-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
-; BITALG-NEXT:    vpandq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
-; BITALG-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpaddb %zmm1, %zmm0, %zmm1
+; BITALG-NEXT:    vpandnq %zmm1, %zmm0, %zmm0
 ; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
 ; BITALG-NEXT:    retq
   %out = call <64 x i8> @llvm.cttz.v64i8(<64 x i8> %in, i1 -1)
   ret <64 x i8> %out
 }
 
 declare <8 x i64> @llvm.cttz.v8i64(<8 x i64>, i1)
 declare <16 x i32> @llvm.cttz.v16i32(<16 x i32>, i1)
 declare <32 x i16> @llvm.cttz.v32i16(<32 x i16>, i1)
 declare <64 x i8> @llvm.cttz.v64i8(<64 x i8>, i1)