diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index aa2a11e460b..f63f77dbe98 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -24676,12 +24676,21 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N, assert(Subtarget.hasSSE2() && "Requires at least SSE2!"); SDValue Src = N->getOperand(0); if (Src.getValueType() == MVT::v2f64) { - SDValue Idx = DAG.getIntPtrConstant(0, dl); - SDValue Res = DAG.getNode(IsSigned ? X86ISD::CVTTP2SI - : X86ISD::CVTTP2UI, - dl, MVT::v4i32, Src); - if (!ExperimentalVectorWideningLegalization) - Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v2i32, Res, Idx); + MVT ResVT = MVT::v4i32; + unsigned Opc = IsSigned ? X86ISD::CVTTP2SI : X86ISD::CVTTP2UI; + if (!IsSigned && !Subtarget.hasVLX()) { + // Widen to 512-bits. + ResVT = MVT::v8i32; + Opc = ISD::FP_TO_UINT; + Src = DAG.getNode(ISD::INSERT_SUBVECTOR, dl, MVT::v8f64, + DAG.getUNDEF(MVT::v8f64), + Src, DAG.getIntPtrConstant(0, dl)); + } + SDValue Res = DAG.getNode(Opc, dl, ResVT, Src); + ResVT = ExperimentalVectorWideningLegalization ? MVT::v4i32 + : MVT::v2i32; + Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, ResVT, Res, + DAG.getIntPtrConstant(0, dl)); Results.push_back(Res); return; } |
