diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 20 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/2012-01-18-vbitcast.ll | 9 |
2 files changed, 14 insertions, 15 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index ffb5acf3386..86141965393 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -26296,7 +26296,7 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N, return; } - if (SrcVT != MVT::f64 || + if ((SrcVT != MVT::f64 && SrcVT != MVT::v2f32) || (DstVT != MVT::v2i32 && DstVT != MVT::v4i16 && DstVT != MVT::v8i8) || getTypeAction(*DAG.getContext(), DstVT) == TypeWidenVector) return; @@ -26304,12 +26304,18 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N, unsigned NumElts = DstVT.getVectorNumElements(); EVT SVT = DstVT.getVectorElementType(); EVT WiderVT = EVT::getVectorVT(*DAG.getContext(), SVT, NumElts * 2); - SDValue Expanded = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, - MVT::v2f64, N->getOperand(0)); - SDValue ToVecInt = DAG.getBitcast(WiderVT, Expanded); - SDValue Extract = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, DstVT, - ToVecInt, DAG.getIntPtrConstant(0, dl)); - Results.push_back(Extract); + SDValue Res; + if (SrcVT == MVT::f64) + Res = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, + MVT::v2f64, N->getOperand(0)); + else + Res = DAG.getNode(ISD::CONCAT_VECTORS, dl, MVT::v4f32, N->getOperand(0), + DAG.getUNDEF(MVT::v2f32)); + + Res = DAG.getBitcast(WiderVT, Res); + Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, DstVT, Res, + DAG.getIntPtrConstant(0, dl)); + Results.push_back(Res); return; } case ISD::MGATHER: { diff --git a/llvm/test/CodeGen/X86/2012-01-18-vbitcast.ll b/llvm/test/CodeGen/X86/2012-01-18-vbitcast.ll index 61c25021bba..ab57b61770d 100644 --- a/llvm/test/CodeGen/X86/2012-01-18-vbitcast.ll +++ b/llvm/test/CodeGen/X86/2012-01-18-vbitcast.ll @@ -4,17 +4,10 @@ define <2 x i32> @vcast(<2 x float> %a, <2 x float> %b) { ; CHECK-LABEL: vcast: ; CHECK: # %bb.0: -; CHECK-NEXT: subq $16, %rsp -; CHECK-NEXT: .seh_stackalloc 16 -; CHECK-NEXT: .seh_endprologue -; CHECK-NEXT: pmovzxdq {{.*#+}} xmm1 = mem[0],zero,mem[1],zero ; CHECK-NEXT: pmovzxdq {{.*#+}} xmm0 = mem[0],zero,mem[1],zero +; CHECK-NEXT: pmovzxdq {{.*#+}} xmm1 = mem[0],zero,mem[1],zero ; CHECK-NEXT: psubq %xmm1, %xmm0 -; CHECK-NEXT: addq $16, %rsp ; CHECK-NEXT: retq -; CHECK-NEXT: .seh_handlerdata -; CHECK-NEXT: .text -; CHECK-NEXT: .seh_endproc %af = bitcast <2 x float> %a to <2 x i32> %bf = bitcast <2 x float> %b to <2 x i32> %x = sub <2 x i32> %af, %bf |
