[AArch64][SME]: Add missing Ops that need custom-lowering in streaming mode.

[hassnaa-arm]

Summary

Add missing Ops and update related testing files.

[hassnaa-arm]

Code format

[sdesmalen]

Hi @hassnaa-arm, it seems there is some missing test coverage for some of the operations, which wasn't that easy to spot because this patch is quite big. It might help to split up this patch into smaller patches so that at least the sign-extend-inreg changes are in a separate patch, since it touches a number of test files.

It might also help to split out some of the others changes:

1. selects (since there are code changes to the LowerSELECT)
2. fp extends (since there are code changes to the LowerFP_EXTEND)

You could choose to keep this patch for the bitreverse/bswap/vecreduce/splice/cttz (with added tests)

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

1718

There are tests missing for bitreverse.

1724

There are tests missing for CTTZ

1777

There are tests missing in this patch for the vecreduce_* operations.

1789

there are tests missing for vector_splice.

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-mulh.ll

19

I guess this change is caused by the sign-extend-inreg, maybe it's worth pulling that out into a separate patch?

[hassnaa-arm]

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

1718

about this comment and other similar comments, do you mean that some test cases are missing ?
I want to clarify that, some operations are already custom-lowered in other places, so it's expected that custom-lowering them in this function won't affect their related testing files.

[hassnaa-arm]

Split out custom-lowering sign-extend-inreg and related testing files to another patch

[hassnaa-arm]

Split out custom-lower select/fp_extend and related testing files into a new patch

[hassnaa-arm]

The affected testing files are related to custom-lowering ISD::VSELECT and ISD::BITREVERSE

[hassnaa-arm]

Update by main branch.

[hassnaa-arm]

Rerun testing files after updating the patch by main branch.

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

while (InnerVT != VT) {
           MVT::getFloatingPointVT(2 * InnerVT.getScalarSizeInBits()));
     }
   }
 
   setOperationAction(ISD::ABS, VT, Custom);
   setOperationAction(ISD::ADD, VT, Custom);
   setOperationAction(ISD::AND, VT, Custom);
   setOperationAction(ISD::ANY_EXTEND, VT, Custom);
+  setOperationAction(ISD::BITREVERSE, VT, Custom);
+  setOperationAction(ISD::BSWAP, VT, Custom);
   setOperationAction(ISD::BUILD_VECTOR, VT, Custom);
   setOperationAction(ISD::CONCAT_VECTORS, VT, Custom);
   setOperationAction(ISD::CTLZ, VT, Custom);
   setOperationAction(ISD::CTPOP, VT, Custom);
+  setOperationAction(ISD::CTTZ, VT, Custom);
   setOperationAction(ISD::EXTRACT_SUBVECTOR, VT, Custom);
   setOperationAction(ISD::EXTRACT_VECTOR_ELT, VT, Custom);
   setOperationAction(ISD::FABS, VT, Custom);
   setOperationAction(ISD::FADD, VT, Custom);
   setOperationAction(ISD::FCEIL, VT, Custom);
   setOperationAction(ISD::FCOPYSIGN, VT, Custom);
   setOperationAction(ISD::FDIV, VT, Custom);
   setOperationAction(ISD::FFLOOR, VT, Custom);
   setOperationAction(ISD::FMA, VT, Custom);
   setOperationAction(ISD::FMAXIMUM, VT, Custom);
   setOperationAction(ISD::FMAXNUM, VT, Custom);
   setOperationAction(ISD::FMINIMUM, VT, Custom);
   setOperationAction(ISD::FMINNUM, VT, Custom);
   setOperationAction(ISD::FMUL, VT, Custom);
   setOperationAction(ISD::FNEARBYINT, VT, Custom);
   setOperationAction(ISD::FNEG, VT, Custom);
+  setOperationAction(ISD::FP_EXTEND, VT, Custom);
   setOperationAction(ISD::FP_ROUND, VT, Custom);
   setOperationAction(ISD::FP_TO_SINT, VT, Custom);
   setOperationAction(ISD::FP_TO_UINT, VT, Custom);
   setOperationAction(ISD::FRINT, VT, Custom);
   setOperationAction(ISD::FROUND, VT, Custom);
   setOperationAction(ISD::FROUNDEVEN, VT, Custom);
   setOperationAction(ISD::FSQRT, VT, Custom);
   setOperationAction(ISD::FSUB, VT, Custom);
   setOperationAction(ISD::FTRUNC, VT, Custom);
   setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Custom);
   setOperationAction(ISD::MLOAD, VT, Custom);
   setOperationAction(ISD::MSTORE, VT, Custom);
   setOperationAction(ISD::MUL, VT, Custom);
   setOperationAction(ISD::MULHS, VT, Custom);
   setOperationAction(ISD::MULHU, VT, Custom);
   setOperationAction(ISD::OR, VT, Custom);
   setOperationAction(ISD::SDIV, VT, Custom);
+  setOperationAction(ISD::SELECT, VT, Custom);
   setOperationAction(ISD::SETCC, VT, Custom);
   setOperationAction(ISD::SHL, VT, Custom);
   setOperationAction(ISD::SIGN_EXTEND, VT, Custom);
+  setOperationAction(ISD::SIGN_EXTEND_INREG, VT, Custom);
   setOperationAction(ISD::SINT_TO_FP, VT, Custom);
   setOperationAction(ISD::SMAX, VT, Custom);
   setOperationAction(ISD::SMIN, VT, Custom);
   setOperationAction(ISD::SPLAT_VECTOR, VT, Custom);
   setOperationAction(ISD::SRA, VT, Custom);
   setOperationAction(ISD::SRL, VT, Custom);
   setOperationAction(ISD::SUB, VT, Custom);
   setOperationAction(ISD::TRUNCATE, VT, Custom);
   setOperationAction(ISD::UDIV, VT, Custom);
   setOperationAction(ISD::UINT_TO_FP, VT, Custom);
   setOperationAction(ISD::UMAX, VT, Custom);
   setOperationAction(ISD::UMIN, VT, Custom);
   setOperationAction(ISD::VECREDUCE_ADD, VT, Custom);
+  setOperationAction(ISD::VECREDUCE_AND, VT, Custom);
   setOperationAction(ISD::VECREDUCE_FADD, VT, Custom);
   setOperationAction(ISD::VECREDUCE_FMAX, VT, Custom);
   setOperationAction(ISD::VECREDUCE_FMIN, VT, Custom);
+  setOperationAction(ISD::VECREDUCE_OR, VT, Custom);
   setOperationAction(ISD::VECREDUCE_SEQ_FADD, VT, Custom);
   setOperationAction(ISD::VECREDUCE_SMAX, VT, Custom);
   setOperationAction(ISD::VECREDUCE_SMIN, VT, Custom);
   setOperationAction(ISD::VECREDUCE_UMAX, VT, Custom);
   setOperationAction(ISD::VECREDUCE_UMIN, VT, Custom);
+  setOperationAction(ISD::VECREDUCE_XOR, VT, Custom);
   setOperationAction(ISD::VECTOR_SHUFFLE, VT, Custom);
+  setOperationAction(ISD::VECTOR_SPLICE, VT, Custom);
+  setOperationAction(ISD::VSELECT, VT, Custom);
   setOperationAction(ISD::XOR, VT, Custom);
   setOperationAction(ISD::ZERO_EXTEND, VT, Custom);
 }
 
 void AArch64TargetLowering::addTypeForFixedLengthSVE(MVT VT) {
   assert(VT.isFixedLengthVector() && "Expected fixed length vector type!");
 
   // By default everything must be expanded.

 }
 
 SDValue AArch64TargetLowering::LowerFP_EXTEND(SDValue Op,
                                               SelectionDAG &DAG) const {
   EVT VT = Op.getValueType();
   if (VT.isScalableVector())
     return LowerToPredicatedOp(Op, DAG, AArch64ISD::FP_EXTEND_MERGE_PASSTHRU);
 
-  if (useSVEForFixedLengthVectorVT(VT))
+  if (useSVEForFixedLengthVectorVT(VT,
+                                   Subtarget->forceStreamingCompatibleSVE()))
     return LowerFixedLengthFPExtendToSVE(Op, DAG);
 
   assert(Op.getValueType() == MVT::f128 && "Unexpected lowering");
   return SDValue();
 }
 
 SDValue AArch64TargetLowering::LowerFP_ROUND(SDValue Op,
                                              SelectionDAG &DAG) const {
SDValue AArch64TargetLowering::LowerSELECT(SDValue Op,
   EVT Ty = Op.getValueType();
   if (Ty.isScalableVector()) {
     SDValue TruncCC = DAG.getNode(ISD::TRUNCATE, DL, MVT::i1, CCVal);
     MVT PredVT = MVT::getVectorVT(MVT::i1, Ty.getVectorElementCount());
     SDValue SplatPred = DAG.getNode(ISD::SPLAT_VECTOR, DL, PredVT, TruncCC);
     return DAG.getNode(ISD::VSELECT, DL, Ty, SplatPred, TVal, FVal);
   }
 
-  if (useSVEForFixedLengthVectorVT(Ty)) {
+  if (useSVEForFixedLengthVectorVT(Ty,
+                                   Subtarget->forceStreamingCompatibleSVE())) {
     // FIXME: Ideally this would be the same as above using i1 types, however
     // for the moment we can't deal with fixed i1 vector types properly, so
     // instead extend the predicate to a result type sized integer vector.
     MVT SplatValVT = MVT::getIntegerVT(Ty.getScalarSizeInBits());
     MVT PredVT = MVT::getVectorVT(SplatValVT, Ty.getVectorElementCount());
     SDValue SplatVal = DAG.getSExtOrTrunc(CCVal, DL, SplatValVT);
     SDValue SplatPred = DAG.getNode(ISD::SPLAT_VECTOR, DL, PredVT, SplatVal);
     return DAG.getNode(ISD::VSELECT, DL, Ty, SplatPred, TVal, FVal);

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-fp-extend-trunc.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 ;
+; FCVT H -> S; Without load instr
+;
+
+define void @fcvt_v2f16_to_v2f32(<2 x half> %a, ptr %b) #0 {
+; CHECK-LABEL: fcvt_v2f16_to_v2f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    ptrue p0.s, vl4
+; CHECK-NEXT:    uunpklo z0.s, z0.h
+; CHECK-NEXT:    fcvt z0.s, p0/m, z0.h
+; CHECK-NEXT:    str d0, [x0]
+; CHECK-NEXT:    ret
+  %res = fpext <2 x half> %a to <2 x float>
+  store <2 x float> %res, ptr %b
+  ret void
+}
+
+define void @fcvt_v4f16_to_v4f32(<4 x half> %a, ptr %b) #0 {
+; CHECK-LABEL: fcvt_v4f16_to_v4f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    ptrue p0.s, vl4
+; CHECK-NEXT:    uunpklo z0.s, z0.h
+; CHECK-NEXT:    fcvt z0.s, p0/m, z0.h
+; CHECK-NEXT:    str q0, [x0]
+; CHECK-NEXT:    ret
+  %res = fpext <4 x half> %a to <4 x float>
+  store <4 x float> %res, ptr %b
+  ret void
+}
+
+define void @fcvt_v8f16_to_v8f32(<8 x half> %a, ptr %b) #0 {
+; CHECK-LABEL: fcvt_v8f16_to_v8f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    uunpklo z1.s, z0.h
+; CHECK-NEXT:    ptrue p0.s, vl4
+; CHECK-NEXT:    ext z0.b, z0.b, z0.b, #8
+; CHECK-NEXT:    fcvt z1.s, p0/m, z1.h
+; CHECK-NEXT:    uunpklo z0.s, z0.h
+; CHECK-NEXT:    fcvt z0.s, p0/m, z0.h
+; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    ret
+  %res = fpext <8 x half> %a to <8 x float>
+  store <8 x float> %res, ptr %b
+  ret void
+}
+
+define void @fcvt_v16f16_to_v16f32(<16 x half> %a, ptr %b) #0 {
+; CHECK-LABEL: fcvt_v16f16_to_v16f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    uunpklo z2.s, z1.h
+; CHECK-NEXT:    uunpklo z3.s, z0.h
+; CHECK-NEXT:    ext z1.b, z1.b, z1.b, #8
+; CHECK-NEXT:    ext z0.b, z0.b, z0.b, #8
+; CHECK-NEXT:    ptrue p0.s, vl4
+; CHECK-NEXT:    uunpklo z1.s, z1.h
+; CHECK-NEXT:    uunpklo z0.s, z0.h
+; CHECK-NEXT:    fcvt z1.s, p0/m, z1.h
+; CHECK-NEXT:    fcvt z2.s, p0/m, z2.h
+; CHECK-NEXT:    fcvt z0.s, p0/m, z0.h
+; CHECK-NEXT:    stp q2, q1, [x0, #32]
+; CHECK-NEXT:    movprfx z1, z3
+; CHECK-NEXT:    fcvt z1.s, p0/m, z3.h
+; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    ret
+  %res = fpext <16 x half> %a to <16 x float>
+  store <16 x float> %res, ptr %b
+  ret void
+}
+
+;
 ; FCVT H -> S
 ;
 
 define void @fcvt_v2f16_v2f32(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: fcvt_v2f16_v2f32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ptrue p0.s, vl2
 ; CHECK-NEXT:    ld1h { z0.s }, p0/z, [x0]

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-fp-select.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 define <2 x half> @select_v2f16(<2 x half> %op1, <2 x half> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v2f16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.h, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <2 x half> %op1, <2 x half> %op2
   ret <2 x half> %sel
 }
 
 define <4 x half> @select_v4f16(<4 x half> %op1, <4 x half> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4f16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.h, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <4 x half> %op1, <4 x half> %op2
   ret <4 x half> %sel
 }
 
 define <8 x half> @select_v8f16(<8 x half> %op1, <8 x half> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v8f16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.h, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <8 x half> %op1, <8 x half> %op2
   ret <8 x half> %sel
 }
 
 define void @select_v16f16(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v16f16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
+; CHECK-NEXT:    and w8, w2, #0x1
 ; CHECK-NEXT:    ldr q0, [x0]
-; CHECK-NEXT:    csetm w8, ne
 ; CHECK-NEXT:    ldr q1, [x0, #16]
-; CHECK-NEXT:    ldr q2, [x1, #16]
-; CHECK-NEXT:    ldr q3, [x1]
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    ldr q2, [x1]
+; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.h, w8
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z4.d
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    orr z0.d, z0.d, z3.d
-; CHECK-NEXT:    orr z1.d, z1.d, z2.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z4.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z2.h
+; CHECK-NEXT:    sel z1.h, p0, z1.h, z3.h
 ; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <16 x half>, ptr %a
   %op2 = load volatile <16 x half>, ptr %b
   %sel = select i1 %mask, <16 x half> %op1, <16 x half> %op2
   store <16 x half> %sel, ptr %a
   ret void
 }
 
 define <2 x float> @select_v2f32(<2 x float> %op1, <2 x float> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v2f32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
-; CHECK-NEXT:    mvn w9, w8
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.s, w8
-; CHECK-NEXT:    mov z3.s, w9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <2 x float> %op1, <2 x float> %op2
   ret <2 x float> %sel
 }
 
 define <4 x float> @select_v4f32(<4 x float> %op1, <4 x float> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4f32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm w8, ne
-; CHECK-NEXT:    mvn w9, w8
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.s, w8
-; CHECK-NEXT:    mov z3.s, w9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <4 x float> %op1, <4 x float> %op2
   ret <4 x float> %sel
 }
 
 define void @select_v8f32(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v8f32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
-; CHECK-NEXT:    ldr q0, [x0, #16]
-; CHECK-NEXT:    csetm w8, ne
-; CHECK-NEXT:    ldr q1, [x0]
-; CHECK-NEXT:    mvn w9, w8
-; CHECK-NEXT:    ldr q2, [x1, #16]
-; CHECK-NEXT:    ldr q3, [x1]
+; CHECK-NEXT:    and w8, w2, #0x1
+; CHECK-NEXT:    ldr q0, [x0]
+; CHECK-NEXT:    ldr q1, [x0, #16]
+; CHECK-NEXT:    ptrue p0.s
+; CHECK-NEXT:    ldr q2, [x1]
+; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.s, w8
-; CHECK-NEXT:    mov z5.s, w9
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    and z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z2.d, z2.d, z5.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    cmpne p0.s, p0/z, z4.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z2.s
+; CHECK-NEXT:    sel z1.s, p0, z1.s, z3.s
+; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <8 x float>, ptr %a
   %op2 = load volatile <8 x float>, ptr %b
   %sel = select i1 %mask, <8 x float> %op1, <8 x float> %op2
   store <8 x float> %sel, ptr %a
   ret void
 }
 

 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <1 x double> %op1, <1 x double> %op2
   ret <1 x double> %sel
 }
 
 define <2 x double> @select_v2f64(<2 x double> %op1, <2 x double> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v2f64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm x8, ne
-; CHECK-NEXT:    mvn x9, x8
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.d, x8
-; CHECK-NEXT:    mov z3.d, x9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.d, p0/z, z2.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z1.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <2 x double> %op1, <2 x double> %op2
   ret <2 x double> %sel
 }
 
 define void @select_v4f64(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4f64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
-; CHECK-NEXT:    ldr q0, [x0, #16]
-; CHECK-NEXT:    csetm x8, ne
-; CHECK-NEXT:    ldr q1, [x0]
-; CHECK-NEXT:    mvn x9, x8
-; CHECK-NEXT:    ldr q2, [x1, #16]
-; CHECK-NEXT:    ldr q3, [x1]
+; CHECK-NEXT:    and w8, w2, #0x1
+; CHECK-NEXT:    ldr q0, [x0]
+; CHECK-NEXT:    ldr q1, [x0, #16]
+; CHECK-NEXT:    ptrue p0.d
+; CHECK-NEXT:    ldr q2, [x1]
+; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.d, x8
-; CHECK-NEXT:    mov z5.d, x9
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    and z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z2.d, z2.d, z5.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    cmpne p0.d, p0/z, z4.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z2.d
+; CHECK-NEXT:    sel z1.d, p0, z1.d, z3.d
+; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <4 x double>, ptr %a
   %op2 = load volatile <4 x double>, ptr %b
   %sel = select i1 %mask, <4 x double> %op1, <4 x double> %op2
   store <4 x double> %sel, ptr %a
   ret void
 }
 
 attributes #0 = { "target-features"="+sve" }

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-fp-vselect.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 define <2 x half> @select_v2f16(<2 x half> %op1, <2 x half> %op2, <2 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v2f16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    sub sp, sp, #16
 ; CHECK-NEXT:    .cfi_def_cfa_offset 16
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    mov z3.s, z2.s[1]
 ; CHECK-NEXT:    fmov w8, s2
 ; CHECK-NEXT:    fmov w9, s3
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    strh w8, [sp, #8]
 ; CHECK-NEXT:    strh w9, [sp, #10]
 ; CHECK-NEXT:    ldr d2, [sp, #8]
 ; CHECK-NEXT:    lsl z2.h, p0/m, z2.h, #15
 ; CHECK-NEXT:    asr z2.h, p0/m, z2.h, #15
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    and z2.h, z2.h, #0x1
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    add sp, sp, #16
 ; CHECK-NEXT:    ret
   %sel = select <2 x i1> %mask, <2 x half> %op1, <2 x half> %op2
   ret <2 x half> %sel
 }
 
 define <4 x half> @select_v4f16(<4 x half> %op1, <4 x half> %op2, <4 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v4f16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.h, p0/m, z2.h, #15
 ; CHECK-NEXT:    asr z2.h, p0/m, z2.h, #15
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    and z2.h, z2.h, #0x1
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <4 x i1> %mask, <4 x half> %op1, <4 x half> %op2
   ret <4 x half> %sel
 }
 
 define <8 x half> @select_v8f16(<8 x half> %op1, <8 x half> %op2, <8 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v8f16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.h, vl8
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    uunpklo z2.h, z2.b
 ; CHECK-NEXT:    lsl z2.h, p0/m, z2.h, #15
 ; CHECK-NEXT:    asr z2.h, p0/m, z2.h, #15
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    and z2.h, z2.h, #0x1
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <8 x i1> %mask, <8 x half> %op1, <8 x half> %op2
   ret <8 x half> %sel
 }
 
 define void @select_v16f16(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v16f16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.h, vl8
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    fcmeq p1.h, p0/z, z0.h, z2.h
-; CHECK-NEXT:    fcmeq p0.h, p0/z, z1.h, z3.h
-; CHECK-NEXT:    mov z4.h, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.h, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    fcmeq p1.h, p0/z, z1.h, z2.h
+; CHECK-NEXT:    sel z1.h, p1, z1.h, z2.h
+; CHECK-NEXT:    fcmeq p0.h, p0/z, z0.h, z3.h
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z3.h
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <16 x half>, ptr %a
   %op2 = load <16 x half>, ptr %b
   %mask = fcmp oeq <16 x half> %op1, %op2
   %sel = select <16 x i1> %mask, <16 x half> %op1, <16 x half> %op2
   store <16 x half> %sel, ptr %a
   ret void
 }
 
 define <2 x float> @select_v2f32(<2 x float> %op1, <2 x float> %op2, <2 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v2f32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.s, p0/m, z2.s, #31
 ; CHECK-NEXT:    asr z2.s, p0/m, z2.s, #31
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.s
+; CHECK-NEXT:    and z2.s, z2.s, #0x1
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <2 x i1> %mask, <2 x float> %op1, <2 x float> %op2
   ret <2 x float> %sel
 }
 
 define <4 x float> @select_v4f32(<4 x float> %op1, <4 x float> %op2, <4 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v4f32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.s, vl4
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    uunpklo z2.s, z2.h
 ; CHECK-NEXT:    lsl z2.s, p0/m, z2.s, #31
 ; CHECK-NEXT:    asr z2.s, p0/m, z2.s, #31
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.s
+; CHECK-NEXT:    and z2.s, z2.s, #0x1
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <4 x i1> %mask, <4 x float> %op1, <4 x float> %op2
   ret <4 x float> %sel
 }
 
 define void @select_v8f32(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v8f32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.s, vl4
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    fcmeq p1.s, p0/z, z0.s, z2.s
-; CHECK-NEXT:    fcmeq p0.s, p0/z, z1.s, z3.s
-; CHECK-NEXT:    mov z4.s, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.s, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    fcmeq p1.s, p0/z, z1.s, z2.s
+; CHECK-NEXT:    sel z1.s, p1, z1.s, z2.s
+; CHECK-NEXT:    fcmeq p0.s, p0/z, z0.s, z3.s
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z3.s
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <8 x float>, ptr %a
   %op2 = load <8 x float>, ptr %b
   %mask = fcmp oeq <8 x float> %op1, %op2
   %sel = select <8 x i1> %mask, <8 x float> %op1, <8 x float> %op2
   store <8 x float> %sel, ptr %a
   ret void
; CHECK-NEXT:    ret
   ret <1 x double> %sel
 }
 
 define <2 x double> @select_v2f64(<2 x double> %op1, <2 x double> %op2, <2 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v2f64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.d, vl2
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    uunpklo z2.d, z2.s
 ; CHECK-NEXT:    lsl z2.d, p0/m, z2.d, #63
 ; CHECK-NEXT:    asr z2.d, p0/m, z2.d, #63
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.d
+; CHECK-NEXT:    and z2.d, z2.d, #0x1
+; CHECK-NEXT:    cmpne p0.d, p0/z, z2.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z1.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <2 x i1> %mask, <2 x double> %op1, <2 x double> %op2
   ret <2 x double> %sel
 }
 
 define void @select_v4f64(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v4f64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.d, vl2
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    fcmeq p1.d, p0/z, z0.d, z2.d
-; CHECK-NEXT:    fcmeq p0.d, p0/z, z1.d, z3.d
-; CHECK-NEXT:    mov z4.d, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.d, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    fcmeq p1.d, p0/z, z1.d, z2.d
+; CHECK-NEXT:    sel z1.d, p1, z1.d, z2.d
+; CHECK-NEXT:    fcmeq p0.d, p0/z, z0.d, z3.d
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z3.d
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <4 x double>, ptr %a
   %op2 = load <4 x double>, ptr %b
   %mask = fcmp oeq <4 x double> %op1, %op2
   %sel = select <4 x i1> %mask, <4 x double> %op1, <4 x double> %op2
   store <4 x double> %sel, ptr %a
   ret void
 }
 
 attributes #0 = { "target-features"="+sve" }

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-arith.ll

 ; ABS
 ;
 
 define <4 x i8> @abs_v4i8(<4 x i8> %op1) #0 {
 ; CHECK-LABEL: abs_v4i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    asr z0.h, p0/m, z0.h, #8
+; CHECK-NEXT:    sxtb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    abs z0.h, p0/m, z0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <4 x i8> @llvm.abs.v4i8(<4 x i8> %op1, i1 false)
   ret <4 x i8> %res
 }
 
 define <8 x i8> @abs_v8i8(<8 x i8> %op1) #0 {
; CHECK-NEXT:    ret
   ret void
 }
 
 define <2 x i16> @abs_v2i16(<2 x i16> %op1) #0 {
 ; CHECK-LABEL: abs_v2i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
 ; CHECK-NEXT:    abs z0.s, p0/m, z0.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <2 x i16> @llvm.abs.v2i16(<2 x i16> %op1, i1 false)
   ret <2 x i16> %res
 }
 
 define <4 x i16> @abs_v4i16(<4 x i16> %op1) #0 {

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-div.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 ;
 ; SDIV
 ;
 
 define <4 x i8> @sdiv_v4i8(<4 x i8> %op1, <4 x i8> %op2) #0 {
 ; CHECK-LABEL: sdiv_v4i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    lsl z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    asr z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    asr z0.h, p0/m, z0.h, #8
+; CHECK-NEXT:    sxtb z1.h, p0/m, z1.h
+; CHECK-NEXT:    sxtb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    sunpklo z1.s, z1.h
 ; CHECK-NEXT:    sunpklo z0.s, z0.h
 ; CHECK-NEXT:    ptrue p0.s, vl4
 ; CHECK-NEXT:    sdiv z0.s, p0/m, z0.s, z1.s
 ; CHECK-NEXT:    uzp1 z0.h, z0.h, z0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = sdiv <4 x i8> %op1, %op2

 }
 
 define <2 x i16> @sdiv_v2i16(<2 x i16> %op1, <2 x i16> %op2) #0 {
 ; CHECK-LABEL: sdiv_v2i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    lsl z1.s, p0/m, z1.s, #16
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    asr z1.s, p0/m, z1.s, #16
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
+; CHECK-NEXT:    sxth z1.s, p0/m, z1.s
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
 ; CHECK-NEXT:    sdiv z0.s, p0/m, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = sdiv <2 x i16> %op1, %op2
   ret <2 x i16> %res
 }
 
 define <4 x i16> @sdiv_v4i16(<4 x i16> %op1, <4 x i16> %op2) #0 {

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-extends.ll

 ; CHECK-LABEL: sext_v4i8_v4i64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.d, vl2
 ; CHECK-NEXT:    uunpklo z0.s, z0.h
 ; CHECK-NEXT:    uunpklo z1.d, z0.s
 ; CHECK-NEXT:    ext z0.b, z0.b, z0.b, #8
 ; CHECK-NEXT:    uunpklo z0.d, z0.s
-; CHECK-NEXT:    lsl z1.d, p0/m, z1.d, #56
-; CHECK-NEXT:    lsl z0.d, p0/m, z0.d, #56
-; CHECK-NEXT:    asr z1.d, p0/m, z1.d, #56
-; CHECK-NEXT:    asr z0.d, p0/m, z0.d, #56
+; CHECK-NEXT:    sxtb z1.d, p0/m, z1.d
+; CHECK-NEXT:    sxtb z0.d, p0/m, z0.d
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %b = sext <4 x i8> %a to <4 x i64>
   store <4 x i64>%b, ptr %out
   ret void
 }
 
 define void @sext_v8i8_v8i64(<8 x i8> %a, ptr %out) #0 {

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-mulh.ll

 ;
 
 define <4 x i8> @smulh_v4i8(<4 x i8> %op1, <4 x i8> %op2) #0 {
 ; CHECK-LABEL: smulh_v4i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    lsl z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    asr z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    asr z1.h, p0/m, z1.h, #8
+; CHECK-NEXT:    sxtb z0.h, p0/m, z0.h
+; CHECK-NEXT:    sxtb z1.h, p0/m, z1.h
 ; CHECK-NEXT:    mul z0.h, p0/m, z0.h, z1.h
 ; CHECK-NEXT:    lsr z0.h, p0/m, z0.h, #4
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %insert = insertelement <4 x i16> undef, i16 4, i64 0
   %splat = shufflevector <4 x i16> %insert, <4 x i16> undef, <4 x i32> zeroinitializer
   %1 = sext <4 x i8> %op1 to <4 x i16>
   %2 = sext <4 x i8> %op2 to <4 x i16>

 }
 
 define <2 x i16> @smulh_v2i16(<2 x i16> %op1, <2 x i16> %op2) #0 {
 ; CHECK-LABEL: smulh_v2i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    lsl z1.s, p0/m, z1.s, #16
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    asr z1.s, p0/m, z1.s, #16
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
+; CHECK-NEXT:    sxth z1.s, p0/m, z1.s
 ; CHECK-NEXT:    mul z0.s, p0/m, z0.s, z1.s
 ; CHECK-NEXT:    lsr z0.s, p0/m, z0.s, #16
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %1 = sext <2 x i16> %op1 to <2 x i32>
   %2 = sext <2 x i16> %op2 to <2 x i32>
   %mul = mul <2 x i32> %1, %2
   %shr = lshr <2 x i32> %mul, <i32 16, i32 16>

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-rem.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 ;
 ; SREM
 ;
 
 define <4 x i8> @srem_v4i8(<4 x i8> %op1, <4 x i8> %op2) #0 {
 ; CHECK-LABEL: srem_v4i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
 ; CHECK-NEXT:    ptrue p1.s, vl4
-; CHECK-NEXT:    lsl z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    asr z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    asr z0.h, p0/m, z0.h, #8
+; CHECK-NEXT:    sxtb z1.h, p0/m, z1.h
+; CHECK-NEXT:    sxtb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    sunpklo z2.s, z1.h
 ; CHECK-NEXT:    sunpklo z3.s, z0.h
 ; CHECK-NEXT:    sdivr z2.s, p1/m, z2.s, z3.s
 ; CHECK-NEXT:    uzp1 z2.h, z2.h, z2.h
 ; CHECK-NEXT:    mls z0.h, p0/m, z2.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = srem <4 x i8> %op1, %op2

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-select.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 define <4 x i8> @select_v4i8(<4 x i8> %op1, <4 x i8> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4i8:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.h, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <4 x i8> %op1, <4 x i8> %op2
   ret <4 x i8> %sel
 }
 
 define <8 x i8> @select_v8i8(<8 x i8> %op1, <8 x i8> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v8i8:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.b
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.b, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.b, p0/z, z2.b, #0
+; CHECK-NEXT:    sel z0.b, p0, z0.b, z1.b
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <8 x i8> %op1, <8 x i8> %op2
   ret <8 x i8> %sel
 }
 
 define <16 x i8> @select_v16i8(<16 x i8> %op1, <16 x i8> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v16i8:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.b
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.b, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.b, p0/z, z2.b, #0
+; CHECK-NEXT:    sel z0.b, p0, z0.b, z1.b
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <16 x i8> %op1, <16 x i8> %op2
   ret <16 x i8> %sel
 }
 
 define void @select_v32i8(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v32i8:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
+; CHECK-NEXT:    and w8, w2, #0x1
 ; CHECK-NEXT:    ldr q0, [x0]
-; CHECK-NEXT:    csetm w8, ne
 ; CHECK-NEXT:    ldr q1, [x0, #16]
+; CHECK-NEXT:    ptrue p0.b
 ; CHECK-NEXT:    ldr q2, [x1]
 ; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.b, w8
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z4.d
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
+; CHECK-NEXT:    cmpne p0.b, p0/z, z4.b, #0
+; CHECK-NEXT:    sel z0.b, p0, z0.b, z2.b
+; CHECK-NEXT:    sel z1.b, p0, z1.b, z3.b
 ; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <32 x i8>, ptr %a
   %op2 = load volatile <32 x i8>, ptr %b
   %sel = select i1 %mask, <32 x i8> %op1, <32 x i8> %op2
   store <32 x i8> %sel, ptr %a
   ret void
 }
 
 define <2 x i16> @select_v2i16(<2 x i16> %op1, <2 x i16> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v2i16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
-; CHECK-NEXT:    mvn w9, w8
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.s, w8
-; CHECK-NEXT:    mov z3.s, w9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <2 x i16> %op1, <2 x i16> %op2
   ret <2 x i16> %sel
 }
 
 define <4 x i16> @select_v4i16(<4 x i16> %op1, <4 x i16> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4i16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.h, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <4 x i16> %op1, <4 x i16> %op2
   ret <4 x i16> %sel
 }
 
 define <8 x i16> @select_v8i16(<8 x i16> %op1, <8 x i16> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v8i16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm w8, ne
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.h, w8
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <8 x i16> %op1, <8 x i16> %op2
   ret <8 x i16> %sel
 }
 
 define void @select_v16i16(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v16i16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
+; CHECK-NEXT:    and w8, w2, #0x1
 ; CHECK-NEXT:    ldr q0, [x0]
-; CHECK-NEXT:    csetm w8, ne
 ; CHECK-NEXT:    ldr q1, [x0, #16]
+; CHECK-NEXT:    ptrue p0.h
 ; CHECK-NEXT:    ldr q2, [x1]
 ; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.h, w8
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z4.d
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
+; CHECK-NEXT:    cmpne p0.h, p0/z, z4.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z2.h
+; CHECK-NEXT:    sel z1.h, p0, z1.h, z3.h
 ; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <16 x i16>, ptr %a
   %op2 = load volatile <16 x i16>, ptr %b
   %sel = select i1 %mask, <16 x i16> %op1, <16 x i16> %op2
   store <16 x i16> %sel, ptr %a
   ret void
 }
 
 define <2 x i32> @select_v2i32(<2 x i32> %op1, <2 x i32> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v2i32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm w8, ne
-; CHECK-NEXT:    mvn w9, w8
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.s, w8
-; CHECK-NEXT:    mov z3.s, w9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <2 x i32> %op1, <2 x i32> %op2
   ret <2 x i32> %sel
 }
 
 define <4 x i32> @select_v4i32(<4 x i32> %op1, <4 x i32> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4i32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm w8, ne
-; CHECK-NEXT:    mvn w9, w8
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.s, w8
-; CHECK-NEXT:    mov z3.s, w9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <4 x i32> %op1, <4 x i32> %op2
   ret <4 x i32> %sel
 }
 
 define void @select_v8i32(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v8i32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
+; CHECK-NEXT:    and w8, w2, #0x1
 ; CHECK-NEXT:    ldr q0, [x0]
-; CHECK-NEXT:    csetm w8, ne
 ; CHECK-NEXT:    ldr q1, [x0, #16]
-; CHECK-NEXT:    mvn w9, w8
+; CHECK-NEXT:    ptrue p0.s
 ; CHECK-NEXT:    ldr q2, [x1]
 ; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.s, w8
-; CHECK-NEXT:    mov z5.s, w9
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    and z2.d, z2.d, z5.d
-; CHECK-NEXT:    and z3.d, z3.d, z5.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
+; CHECK-NEXT:    cmpne p0.s, p0/z, z4.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z2.s
+; CHECK-NEXT:    sel z1.s, p0, z1.s, z3.s
 ; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <8 x i32>, ptr %a
   %op2 = load volatile <8 x i32>, ptr %b
   %sel = select i1 %mask, <8 x i32> %op1, <8 x i32> %op2
   store <8 x i32> %sel, ptr %a
   ret void
 }
 
 define <1 x i64> @select_v1i64(<1 x i64> %op1, <1 x i64> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v1i64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.d
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm x8, ne
-; CHECK-NEXT:    mvn x9, x8
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.d, x8
-; CHECK-NEXT:    mov z3.d, x9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.d, p0/z, z2.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z1.d
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <1 x i64> %op1, <1 x i64> %op2
   ret <1 x i64> %sel
 }
 
 define <2 x i64> @select_v2i64(<2 x i64> %op1, <2 x i64> %op2, i1 %mask) #0 {
 ; CHECK-LABEL: select_v2i64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
-; CHECK-NEXT:    csetm x8, ne
-; CHECK-NEXT:    mvn x9, x8
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    mov z2.d, x8
-; CHECK-NEXT:    mov z3.d, x9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.d, p0/z, z2.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z1.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select i1 %mask, <2 x i64> %op1, <2 x i64> %op2
   ret <2 x i64> %sel
 }
 
 define void @select_v4i64(ptr %a, ptr %b, i1 %mask) #0 {
 ; CHECK-LABEL: select_v4i64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w2, #0x1
+; CHECK-NEXT:    and w8, w2, #0x1
 ; CHECK-NEXT:    ldr q0, [x0]
-; CHECK-NEXT:    csetm x8, ne
 ; CHECK-NEXT:    ldr q1, [x0, #16]
-; CHECK-NEXT:    mvn x9, x8
+; CHECK-NEXT:    ptrue p0.d
 ; CHECK-NEXT:    ldr q2, [x1]
 ; CHECK-NEXT:    ldr q3, [x1, #16]
 ; CHECK-NEXT:    mov z4.d, x8
-; CHECK-NEXT:    mov z5.d, x9
-; CHECK-NEXT:    and z1.d, z1.d, z4.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    and z2.d, z2.d, z5.d
-; CHECK-NEXT:    and z3.d, z3.d, z5.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
+; CHECK-NEXT:    cmpne p0.d, p0/z, z4.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z2.d
+; CHECK-NEXT:    sel z1.d, p0, z1.d, z3.d
 ; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load volatile <4 x i64>, ptr %a
   %op2 = load volatile <4 x i64>, ptr %b
   %sel = select i1 %mask, <4 x i64> %op1, <4 x i64> %op2
   store <4 x i64> %sel, ptr %a
   ret void
 }
 
 attributes #0 = { "target-features"="+sve" }

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-shifts.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 ;
 ; ASHR
 ;
 
 define <4 x i8> @ashr_v4i8(<4 x i8> %op1, <4 x i8> %op2) #0 {
 ; CHECK-LABEL: ashr_v4i8:
 ; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
+; CHECK-NEXT:    sxtb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    and z1.h, z1.h, #0xff
-; CHECK-NEXT:    asr z0.h, p0/m, z0.h, #8
 ; CHECK-NEXT:    asr z0.h, p0/m, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = ashr <4 x i8> %op1, %op2
   ret <4 x i8> %res
 }
 
 define <8 x i8> @ashr_v8i8(<8 x i8> %op1, <8 x i8> %op2) #0 {
; CHECK-NEXT:    ret
   %res = ashr <32 x i8> %op1, %op2
   store <32 x i8> %res, ptr %a
   ret void
 }
 
 define <2 x i16> @ashr_v2i16(<2 x i16> %op1, <2 x i16> %op2) #0 {
 ; CHECK-LABEL: ashr_v2i16:
 ; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
 ; CHECK-NEXT:    and z1.s, z1.s, #0xffff
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
 ; CHECK-NEXT:    asr z0.s, p0/m, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = ashr <2 x i16> %op1, %op2
   ret <2 x i16> %res
 }
 
 define <4 x i16> @ashr_v4i16(<4 x i16> %op1, <4 x i16> %op2) #0 {

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-to-fp.ll

 ; SCVTF H -> S
 ;
 
 define <2 x float> @scvtf_v2i16_v2f32(<2 x i16> %op1) #0 {
 ; CHECK-LABEL: scvtf_v2i16_v2f32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
 ; CHECK-NEXT:    scvtf z0.s, p0/m, z0.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = sitofp <2 x i16> %op1 to <2 x float>
   ret <2 x float> %res
 }
 
 define <4 x float> @scvtf_v4i16_v4f32(<4 x i16> %op1) #0 {

 ; SCVTF H -> D
 ;
 
 define <2 x double> @scvtf_v2i16_v2f64(<2 x i16> %op1) #0 {
 ; CHECK-LABEL: scvtf_v2i16_v2f64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
 ; CHECK-NEXT:    ptrue p0.d, vl2
 ; CHECK-NEXT:    sunpklo z0.d, z0.s
 ; CHECK-NEXT:    scvtf z0.d, p0/m, z0.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %res = sitofp <2 x i16> %op1 to <2 x double>
   ret <2 x double> %res
 }

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-int-vselect.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 define <4 x i8> @select_v4i8(<4 x i8> %op1, <4 x i8> %op2, <4 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v4i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.h, p0/m, z2.h, #15
 ; CHECK-NEXT:    asr z2.h, p0/m, z2.h, #15
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    and z2.h, z2.h, #0x1
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <4 x i1> %mask, <4 x i8> %op1, <4 x i8> %op2
   ret <4 x i8> %sel
 }
 
 define <8 x i8> @select_v8i8(<8 x i8> %op1, <8 x i8> %op2, <8 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v8i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.b, vl8
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.b, p0/m, z2.b, #7
 ; CHECK-NEXT:    asr z2.b, p0/m, z2.b, #7
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.b
+; CHECK-NEXT:    and z2.b, z2.b, #0x1
+; CHECK-NEXT:    cmpne p0.b, p0/z, z2.b, #0
+; CHECK-NEXT:    sel z0.b, p0, z0.b, z1.b
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <8 x i1> %mask, <8 x i8> %op1, <8 x i8> %op2
   ret <8 x i8> %sel
 }
 
 define <16 x i8> @select_v16i8(<16 x i8> %op1, <16 x i8> %op2, <16 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v16i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $q2 killed $q2 def $z2
 ; CHECK-NEXT:    ptrue p0.b, vl16
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    lsl z2.b, p0/m, z2.b, #7
 ; CHECK-NEXT:    asr z2.b, p0/m, z2.b, #7
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.b
+; CHECK-NEXT:    and z2.b, z2.b, #0x1
+; CHECK-NEXT:    cmpne p0.b, p0/z, z2.b, #0
+; CHECK-NEXT:    sel z0.b, p0, z0.b, z1.b
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <16 x i1> %mask, <16 x i8> %op1, <16 x i8> %op2
   ret <16 x i8> %sel
 }
 
 define void @select_v32i8(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v32i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.b, vl16
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    cmpeq p1.b, p0/z, z0.b, z2.b
-; CHECK-NEXT:    cmpeq p0.b, p0/z, z1.b, z3.b
-; CHECK-NEXT:    mov z4.b, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.b, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    cmpeq p1.b, p0/z, z1.b, z2.b
+; CHECK-NEXT:    sel z1.b, p1, z1.b, z2.b
+; CHECK-NEXT:    cmpeq p0.b, p0/z, z0.b, z3.b
+; CHECK-NEXT:    sel z0.b, p0, z0.b, z3.b
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <32 x i8>, ptr %a
   %op2 = load <32 x i8>, ptr %b
   %mask = icmp eq <32 x i8> %op1, %op2
   %sel = select <32 x i1> %mask, <32 x i8> %op1, <32 x i8> %op2
   store <32 x i8> %sel, ptr %a
   ret void
 }
 
 define <2 x i16> @select_v2i16(<2 x i16> %op1, <2 x i16> %op2, <2 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v2i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.s, p0/m, z2.s, #31
 ; CHECK-NEXT:    asr z2.s, p0/m, z2.s, #31
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.s
+; CHECK-NEXT:    and z2.s, z2.s, #0x1
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <2 x i1> %mask, <2 x i16> %op1, <2 x i16> %op2
   ret <2 x i16> %sel
 }
 
 define <4 x i16> @select_v4i16(<4 x i16> %op1, <4 x i16> %op2, <4 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v4i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.h, p0/m, z2.h, #15
 ; CHECK-NEXT:    asr z2.h, p0/m, z2.h, #15
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    and z2.h, z2.h, #0x1
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <4 x i1> %mask, <4 x i16> %op1, <4 x i16> %op2
   ret <4 x i16> %sel
 }
 
 define <8 x i16> @select_v8i16(<8 x i16> %op1, <8 x i16> %op2, <8 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v8i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.h, vl8
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    uunpklo z2.h, z2.b
 ; CHECK-NEXT:    lsl z2.h, p0/m, z2.h, #15
 ; CHECK-NEXT:    asr z2.h, p0/m, z2.h, #15
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.h
+; CHECK-NEXT:    and z2.h, z2.h, #0x1
+; CHECK-NEXT:    cmpne p0.h, p0/z, z2.h, #0
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z1.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <8 x i1> %mask, <8 x i16> %op1, <8 x i16> %op2
   ret <8 x i16> %sel
 }
 
 define void @select_v16i16(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v16i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.h, vl8
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    cmpeq p1.h, p0/z, z0.h, z2.h
-; CHECK-NEXT:    cmpeq p0.h, p0/z, z1.h, z3.h
-; CHECK-NEXT:    mov z4.h, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.h, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    cmpeq p1.h, p0/z, z1.h, z2.h
+; CHECK-NEXT:    sel z1.h, p1, z1.h, z2.h
+; CHECK-NEXT:    cmpeq p0.h, p0/z, z0.h, z3.h
+; CHECK-NEXT:    sel z0.h, p0, z0.h, z3.h
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <16 x i16>, ptr %a
   %op2 = load <16 x i16>, ptr %b
   %mask = icmp eq <16 x i16> %op1, %op2
   %sel = select <16 x i1> %mask, <16 x i16> %op1, <16 x i16> %op2
   store <16 x i16> %sel, ptr %a
   ret void
 }
 
 define <2 x i32> @select_v2i32(<2 x i32> %op1, <2 x i32> %op2, <2 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v2i32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    lsl z2.s, p0/m, z2.s, #31
 ; CHECK-NEXT:    asr z2.s, p0/m, z2.s, #31
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.s
+; CHECK-NEXT:    and z2.s, z2.s, #0x1
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <2 x i1> %mask, <2 x i32> %op1, <2 x i32> %op2
   ret <2 x i32> %sel
 }
 
 define <4 x i32> @select_v4i32(<4 x i32> %op1, <4 x i32> %op2, <4 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v4i32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.s, vl4
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    uunpklo z2.s, z2.h
 ; CHECK-NEXT:    lsl z2.s, p0/m, z2.s, #31
 ; CHECK-NEXT:    asr z2.s, p0/m, z2.s, #31
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.s
+; CHECK-NEXT:    and z2.s, z2.s, #0x1
+; CHECK-NEXT:    cmpne p0.s, p0/z, z2.s, #0
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z1.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <4 x i1> %mask, <4 x i32> %op1, <4 x i32> %op2
   ret <4 x i32> %sel
 }
 
 define void @select_v8i32(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v8i32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.s, vl4
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    cmpeq p1.s, p0/z, z0.s, z2.s
-; CHECK-NEXT:    cmpeq p0.s, p0/z, z1.s, z3.s
-; CHECK-NEXT:    mov z4.s, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.s, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    cmpeq p1.s, p0/z, z1.s, z2.s
+; CHECK-NEXT:    sel z1.s, p1, z1.s, z2.s
+; CHECK-NEXT:    cmpeq p0.s, p0/z, z0.s, z3.s
+; CHECK-NEXT:    sel z0.s, p0, z0.s, z3.s
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <8 x i32>, ptr %a
   %op2 = load <8 x i32>, ptr %b
   %mask = icmp eq <8 x i32> %op1, %op2
   %sel = select <8 x i1> %mask, <8 x i32> %op1, <8 x i32> %op2
   store <8 x i32> %sel, ptr %a
   ret void
 }
 
 define <1 x i64> @select_v1i64(<1 x i64> %op1, <1 x i64> %op2, <1 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v1i64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    tst w0, #0x1
-; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
+; CHECK-NEXT:    and w8, w0, #0x1
+; CHECK-NEXT:    ptrue p0.d
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
-; CHECK-NEXT:    csetm x8, ne
-; CHECK-NEXT:    mvn x9, x8
+; CHECK-NEXT:    // kill: def $d1 killed $d1 def $z1
 ; CHECK-NEXT:    mov z2.d, x8
-; CHECK-NEXT:    mov z3.d, x9
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    and z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    cmpne p0.d, p0/z, z2.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z1.d
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <1 x i1> %mask, <1 x i64> %op1, <1 x i64> %op2
   ret <1 x i64> %sel
 }
 
 define <2 x i64> @select_v2i64(<2 x i64> %op1, <2 x i64> %op2, <2 x i1> %mask) #0 {
 ; CHECK-LABEL: select_v2i64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d2 killed $d2 def $z2
 ; CHECK-NEXT:    ptrue p0.d, vl2
-; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
+; CHECK-NEXT:    // kill: def $q1 killed $q1 def $z1
 ; CHECK-NEXT:    uunpklo z2.d, z2.s
 ; CHECK-NEXT:    lsl z2.d, p0/m, z2.d, #63
 ; CHECK-NEXT:    asr z2.d, p0/m, z2.d, #63
-; CHECK-NEXT:    bic z1.d, z1.d, z2.d
-; CHECK-NEXT:    and z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    ptrue p0.d
+; CHECK-NEXT:    and z2.d, z2.d, #0x1
+; CHECK-NEXT:    cmpne p0.d, p0/z, z2.d, #0
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z1.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %sel = select <2 x i1> %mask, <2 x i64> %op1, <2 x i64> %op2
   ret <2 x i64> %sel
 }
 
 define void @select_v4i64(ptr %a, ptr %b) #0 {
 ; CHECK-LABEL: select_v4i64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    ldp q1, q0, [x0]
 ; CHECK-NEXT:    ptrue p0.d, vl2
-; CHECK-NEXT:    ldp q3, q2, [x1]
-; CHECK-NEXT:    cmpeq p1.d, p0/z, z0.d, z2.d
-; CHECK-NEXT:    cmpeq p0.d, p0/z, z1.d, z3.d
-; CHECK-NEXT:    mov z4.d, p1/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    mov z5.d, p0/z, #-1 // =0xffffffffffffffff
-; CHECK-NEXT:    bic z2.d, z2.d, z4.d
-; CHECK-NEXT:    bic z3.d, z3.d, z5.d
-; CHECK-NEXT:    and z1.d, z1.d, z5.d
-; CHECK-NEXT:    and z0.d, z0.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
+; CHECK-NEXT:    ldp q2, q3, [x1]
+; CHECK-NEXT:    cmpeq p1.d, p0/z, z1.d, z2.d
+; CHECK-NEXT:    sel z1.d, p1, z1.d, z2.d
+; CHECK-NEXT:    cmpeq p0.d, p0/z, z0.d, z3.d
+; CHECK-NEXT:    sel z0.d, p0, z0.d, z3.d
 ; CHECK-NEXT:    stp q1, q0, [x0]
 ; CHECK-NEXT:    ret
   %op1 = load <4 x i64>, ptr %a
   %op2 = load <4 x i64>, ptr %b
   %mask = icmp eq <4 x i64> %op1, %op2
   %sel = select <4 x i1> %mask, <4 x i64> %op1, <4 x i64> %op2
   store <4 x i64> %sel, ptr %a
   ret void
 }
 
 attributes #0 = { "target-features"="+sve" uwtable }

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-rev.ll

 ; REVB
 ;
 
 define <2 x i16> @bswap_v2i16(<2 x i16> %op) #0 {
 ; CHECK-LABEL: bswap_v2i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.s, p0/m, z1.s, #24
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.s, p0/m, z2.s, #8
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsl z3.s, p0/m, z3.s, #24
-; CHECK-NEXT:    and z0.s, z0.s, #0xff00
-; CHECK-NEXT:    and z2.s, z2.s, #0xff00
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #8
-; CHECK-NEXT:    orr z1.d, z2.d, z1.d
-; CHECK-NEXT:    orr z0.d, z3.d, z0.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.s, p0/m, z0.s
 ; CHECK-NEXT:    lsr z0.s, p0/m, z0.s, #16
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <2 x i16> @llvm.bswap.v2i16(<2 x i16> %op)
   ret <2 x i16> %res
 }
 
 define <4 x i16> @bswap_v4i16(<4 x i16> %op) #0 {
 ; CHECK-LABEL: bswap_v4i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <4 x i16> @llvm.bswap.v4i16(<4 x i16> %op)
   ret <4 x i16> %res
 }
 
 define <8 x i16> @bswap_v8i16(<8 x i16> %op) #0 {
 ; CHECK-LABEL: bswap_v8i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl8
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %op)
   ret <8 x i16> %res
 }
 
 define void @bswap_v16i16(ptr %a) #0 {
 ; CHECK-LABEL: bswap_v16i16:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    ldp q1, q0, [x0]
+; CHECK-NEXT:    ldp q0, q1, [x0]
 ; CHECK-NEXT:    ptrue p0.h, vl8
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.h, p0/m, z2.h, #8
-; CHECK-NEXT:    movprfx z3, z1
-; CHECK-NEXT:    lsr z3.h, p0/m, z3.h, #8
-; CHECK-NEXT:    lsl z1.h, p0/m, z1.h, #8
-; CHECK-NEXT:    orr z1.d, z1.d, z3.d
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    revb z0.h, p0/m, z0.h
+; CHECK-NEXT:    revb z1.h, p0/m, z1.h
+; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op = load <16 x i16>, ptr %a
   %res = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %op)
   store <16 x i16> %res, ptr %a
   ret void
 }
 
 define <2 x i32> @bswap_v2i32(<2 x i32> %op) #0 {
 ; CHECK-LABEL: bswap_v2i32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.s, p0/m, z1.s, #24
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.s, p0/m, z2.s, #8
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsl z3.s, p0/m, z3.s, #24
-; CHECK-NEXT:    and z0.s, z0.s, #0xff00
-; CHECK-NEXT:    and z2.s, z2.s, #0xff00
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #8
-; CHECK-NEXT:    orr z1.d, z2.d, z1.d
-; CHECK-NEXT:    orr z0.d, z3.d, z0.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.s, p0/m, z0.s
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %op)
   ret <2 x i32> %res
 }
 
 define <4 x i32> @bswap_v4i32(<4 x i32> %op) #0 {
 ; CHECK-LABEL: bswap_v4i32:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl4
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.s, p0/m, z1.s, #24
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.s, p0/m, z2.s, #8
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsl z3.s, p0/m, z3.s, #24
-; CHECK-NEXT:    and z0.s, z0.s, #0xff00
-; CHECK-NEXT:    and z2.s, z2.s, #0xff00
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #8
-; CHECK-NEXT:    orr z1.d, z2.d, z1.d
-; CHECK-NEXT:    orr z0.d, z3.d, z0.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.s, p0/m, z0.s
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %op)
   ret <4 x i32> %res
 }
 
 define void @bswap_v8i32(ptr %a) #0 {
 ; CHECK-LABEL: bswap_v8i32:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    ldp q1, q0, [x0]
+; CHECK-NEXT:    ldp q0, q1, [x0]
 ; CHECK-NEXT:    ptrue p0.s, vl4
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsr z3.s, p0/m, z3.s, #8
-; CHECK-NEXT:    movprfx z5, z1
-; CHECK-NEXT:    lsr z5.s, p0/m, z5.s, #8
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.s, p0/m, z2.s, #24
-; CHECK-NEXT:    movprfx z4, z1
-; CHECK-NEXT:    lsr z4.s, p0/m, z4.s, #24
-; CHECK-NEXT:    and z3.s, z3.s, #0xff00
-; CHECK-NEXT:    and z5.s, z5.s, #0xff00
-; CHECK-NEXT:    orr z2.d, z3.d, z2.d
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsl z3.s, p0/m, z3.s, #24
-; CHECK-NEXT:    orr z4.d, z5.d, z4.d
-; CHECK-NEXT:    movprfx z5, z1
-; CHECK-NEXT:    lsl z5.s, p0/m, z5.s, #24
-; CHECK-NEXT:    and z1.s, z1.s, #0xff00
-; CHECK-NEXT:    and z0.s, z0.s, #0xff00
-; CHECK-NEXT:    lsl z1.s, p0/m, z1.s, #8
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #8
-; CHECK-NEXT:    orr z1.d, z5.d, z1.d
-; CHECK-NEXT:    orr z0.d, z3.d, z0.d
-; CHECK-NEXT:    orr z1.d, z1.d, z4.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    revb z0.s, p0/m, z0.s
+; CHECK-NEXT:    revb z1.s, p0/m, z1.s
+; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op = load <8 x i32>, ptr %a
   %res = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %op)
   store <8 x i32> %res, ptr %a
   ret void
 }
 
 define <1 x i64> @bswap_v1i64(<1 x i64> %op) #0 {
 ; CHECK-LABEL: bswap_v1i64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.d, vl1
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.d, p0/m, z2.d, #40
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.d, p0/m, z1.d, #56
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsr z3.d, p0/m, z3.d, #24
-; CHECK-NEXT:    movprfx z4, z0
-; CHECK-NEXT:    lsr z4.d, p0/m, z4.d, #8
-; CHECK-NEXT:    mov z5.d, z0.d
-; CHECK-NEXT:    and z2.d, z2.d, #0xff00
-; CHECK-NEXT:    and z3.d, z3.d, #0xff0000
-; CHECK-NEXT:    orr z1.d, z2.d, z1.d
-; CHECK-NEXT:    mov z2.d, z0.d
-; CHECK-NEXT:    and z4.d, z4.d, #0xff000000
-; CHECK-NEXT:    and z5.d, z5.d, #0xff000000
-; CHECK-NEXT:    orr z3.d, z4.d, z3.d
-; CHECK-NEXT:    and z2.d, z2.d, #0xff0000
-; CHECK-NEXT:    movprfx z4, z5
-; CHECK-NEXT:    lsl z4.d, p0/m, z4.d, #8
-; CHECK-NEXT:    movprfx z5, z0
-; CHECK-NEXT:    lsl z5.d, p0/m, z5.d, #56
-; CHECK-NEXT:    and z0.d, z0.d, #0xff00
-; CHECK-NEXT:    lsl z2.d, p0/m, z2.d, #24
-; CHECK-NEXT:    lsl z0.d, p0/m, z0.d, #40
-; CHECK-NEXT:    orr z2.d, z2.d, z4.d
-; CHECK-NEXT:    orr z0.d, z5.d, z0.d
-; CHECK-NEXT:    orr z1.d, z3.d, z1.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.d, p0/m, z0.d
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <1 x i64> @llvm.bswap.v1i64(<1 x i64> %op)
   ret <1 x i64> %res
 }
 
 define <2 x i64> @bswap_v2i64(<2 x i64> %op) #0 {
 ; CHECK-LABEL: bswap_v2i64:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 def $z0
 ; CHECK-NEXT:    ptrue p0.d, vl2
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.d, p0/m, z2.d, #40
-; CHECK-NEXT:    movprfx z1, z0
-; CHECK-NEXT:    lsr z1.d, p0/m, z1.d, #56
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsr z3.d, p0/m, z3.d, #24
-; CHECK-NEXT:    movprfx z4, z0
-; CHECK-NEXT:    lsr z4.d, p0/m, z4.d, #8
-; CHECK-NEXT:    mov z5.d, z0.d
-; CHECK-NEXT:    and z2.d, z2.d, #0xff00
-; CHECK-NEXT:    and z3.d, z3.d, #0xff0000
-; CHECK-NEXT:    orr z1.d, z2.d, z1.d
-; CHECK-NEXT:    mov z2.d, z0.d
-; CHECK-NEXT:    and z4.d, z4.d, #0xff000000
-; CHECK-NEXT:    and z5.d, z5.d, #0xff000000
-; CHECK-NEXT:    orr z3.d, z4.d, z3.d
-; CHECK-NEXT:    and z2.d, z2.d, #0xff0000
-; CHECK-NEXT:    movprfx z4, z5
-; CHECK-NEXT:    lsl z4.d, p0/m, z4.d, #8
-; CHECK-NEXT:    movprfx z5, z0
-; CHECK-NEXT:    lsl z5.d, p0/m, z5.d, #56
-; CHECK-NEXT:    and z0.d, z0.d, #0xff00
-; CHECK-NEXT:    lsl z2.d, p0/m, z2.d, #24
-; CHECK-NEXT:    lsl z0.d, p0/m, z0.d, #40
-; CHECK-NEXT:    orr z2.d, z2.d, z4.d
-; CHECK-NEXT:    orr z0.d, z5.d, z0.d
-; CHECK-NEXT:    orr z1.d, z3.d, z1.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    orr z0.d, z0.d, z1.d
+; CHECK-NEXT:    revb z0.d, p0/m, z0.d
 ; CHECK-NEXT:    // kill: def $q0 killed $q0 killed $z0
 ; CHECK-NEXT:    ret
   %res = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %op)
   ret <2 x i64> %res
 }
 
 define void @bswap_v4i64(ptr %a) #0 {
 ; CHECK-LABEL: bswap_v4i64:
 ; CHECK:       // %bb.0:
-; CHECK-NEXT:    ldp q1, q0, [x0]
+; CHECK-NEXT:    ldp q0, q1, [x0]
 ; CHECK-NEXT:    ptrue p0.d, vl2
-; CHECK-NEXT:    movprfx z3, z0
-; CHECK-NEXT:    lsr z3.d, p0/m, z3.d, #40
-; CHECK-NEXT:    movprfx z4, z0
-; CHECK-NEXT:    lsr z4.d, p0/m, z4.d, #24
-; CHECK-NEXT:    movprfx z5, z0
-; CHECK-NEXT:    lsr z5.d, p0/m, z5.d, #8
-; CHECK-NEXT:    movprfx z2, z0
-; CHECK-NEXT:    lsr z2.d, p0/m, z2.d, #56
-; CHECK-NEXT:    and z3.d, z3.d, #0xff00
-; CHECK-NEXT:    and z4.d, z4.d, #0xff0000
-; CHECK-NEXT:    and z5.d, z5.d, #0xff000000
-; CHECK-NEXT:    orr z2.d, z3.d, z2.d
-; CHECK-NEXT:    orr z3.d, z5.d, z4.d
-; CHECK-NEXT:    mov z6.d, z0.d
-; CHECK-NEXT:    mov z7.d, z0.d
-; CHECK-NEXT:    orr z2.d, z3.d, z2.d
-; CHECK-NEXT:    and z6.d, z6.d, #0xff000000
-; CHECK-NEXT:    and z7.d, z7.d, #0xff0000
-; CHECK-NEXT:    movprfx z3, z6
-; CHECK-NEXT:    lsl z3.d, p0/m, z3.d, #8
-; CHECK-NEXT:    movprfx z4, z7
-; CHECK-NEXT:    lsl z4.d, p0/m, z4.d, #24
-; CHECK-NEXT:    orr z3.d, z4.d, z3.d
-; CHECK-NEXT:    movprfx z4, z1
-; CHECK-NEXT:    lsr z4.d, p0/m, z4.d, #40
-; CHECK-NEXT:    movprfx z16, z0
-; CHECK-NEXT:    lsl z16.d, p0/m, z16.d, #56
-; CHECK-NEXT:    and z0.d, z0.d, #0xff00
-; CHECK-NEXT:    movprfx z5, z1
-; CHECK-NEXT:    lsr z5.d, p0/m, z5.d, #56
-; CHECK-NEXT:    and z4.d, z4.d, #0xff00
-; CHECK-NEXT:    lsl z0.d, p0/m, z0.d, #40
-; CHECK-NEXT:    orr z4.d, z4.d, z5.d
-; CHECK-NEXT:    movprfx z5, z1
-; CHECK-NEXT:    lsr z5.d, p0/m, z5.d, #24
-; CHECK-NEXT:    movprfx z7, z1
-; CHECK-NEXT:    lsr z7.d, p0/m, z7.d, #8
-; CHECK-NEXT:    orr z0.d, z16.d, z0.d
-; CHECK-NEXT:    mov z6.d, z1.d
-; CHECK-NEXT:    mov z16.d, z1.d
-; CHECK-NEXT:    and z5.d, z5.d, #0xff0000
-; CHECK-NEXT:    and z7.d, z7.d, #0xff000000
-; CHECK-NEXT:    orr z5.d, z7.d, z5.d
-; CHECK-NEXT:    and z6.d, z6.d, #0xff000000
-; CHECK-NEXT:    and z16.d, z16.d, #0xff0000
-; CHECK-NEXT:    movprfx z7, z1
-; CHECK-NEXT:    lsl z7.d, p0/m, z7.d, #56
-; CHECK-NEXT:    and z1.d, z1.d, #0xff00
-; CHECK-NEXT:    lsl z6.d, p0/m, z6.d, #8
-; CHECK-NEXT:    lsl z16.d, p0/m, z16.d, #24
-; CHECK-NEXT:    lsl z1.d, p0/m, z1.d, #40
-; CHECK-NEXT:    orr z6.d, z16.d, z6.d
-; CHECK-NEXT:    orr z1.d, z7.d, z1.d
-; CHECK-NEXT:    orr z4.d, z5.d, z4.d
-; CHECK-NEXT:    orr z1.d, z1.d, z6.d
-; CHECK-NEXT:    orr z0.d, z0.d, z3.d
-; CHECK-NEXT:    orr z1.d, z1.d, z4.d
-; CHECK-NEXT:    orr z0.d, z0.d, z2.d
-; CHECK-NEXT:    stp q1, q0, [x0]
+; CHECK-NEXT:    revb z0.d, p0/m, z0.d
+; CHECK-NEXT:    revb z1.d, p0/m, z1.d
+; CHECK-NEXT:    stp q0, q1, [x0]
 ; CHECK-NEXT:    ret
   %op = load <4 x i64>, ptr %a
   %res = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %op)
   store <4 x i64> %res, ptr %a
   ret void
 }
 
 attributes #0 = { "target-features"="+sve" }

llvm/test/CodeGen/AArch64/sve-streaming-mode-fixed-length-sdiv-pow2.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -force-streaming-compatible-sve  < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
 define <4 x i8> @sdiv_v4i8(<4 x i8> %op1) #0 {
 ; CHECK-LABEL: sdiv_v4i8:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.h, vl4
-; CHECK-NEXT:    lsl z0.h, p0/m, z0.h, #8
-; CHECK-NEXT:    asr z0.h, p0/m, z0.h, #8
+; CHECK-NEXT:    sxtb z0.h, p0/m, z0.h
 ; CHECK-NEXT:    asrd z0.h, p0/m, z0.h, #5
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = sdiv <4 x i8> %op1, shufflevector (<4 x i8> insertelement (<4 x i8> poison, i8 32, i32 0), <4 x i8> poison, <4 x i32> zeroinitializer)
   ret <4 x i8> %res
 }
 
 define <8 x i8> @sdiv_v8i8(<8 x i8> %op1) #0 {
; CHECK-NEXT:    ret
   ret void
 }
 
 define <2 x i16> @sdiv_v2i16(<2 x i16> %op1) #0 {
 ; CHECK-LABEL: sdiv_v2i16:
 ; CHECK:       // %bb.0:
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 def $z0
 ; CHECK-NEXT:    ptrue p0.s, vl2
-; CHECK-NEXT:    lsl z0.s, p0/m, z0.s, #16
-; CHECK-NEXT:    asr z0.s, p0/m, z0.s, #16
+; CHECK-NEXT:    sxth z0.s, p0/m, z0.s
 ; CHECK-NEXT:    asrd z0.s, p0/m, z0.s, #5
 ; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $z0
 ; CHECK-NEXT:    ret
   %res = sdiv <2 x i16> %op1, shufflevector (<2 x i16> insertelement (<2 x i16> poison, i16 32, i32 0), <2 x i16> poison, <2 x i32> zeroinitializer)
   ret <2 x i16> %res
 }
 
 define <4 x i16> @sdiv_v4i16(<4 x i16> %op1) #0 {