[AArch64][SME]: Custom lower select and fp_extend for streaming SVE

[hassnaa-arm]

Summary

Custom lower select/fp_extend and update related testing files

[sdesmalen]

LGTM, but can you update the commit message to say: [AArch64][SME]: Custom lower select and fp_extend for Streaming SVE ?

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

void AArch64TargetLowering::addTypeForStreamingSVE(MVT VT) {
   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::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);

 }
 
 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-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-vselect.ll

; CHECK-NEXT:    ret
   %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: