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| author | Craig Topper <craig.topper@intel.com> | 2017-11-28 22:08:51 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2017-11-28 22:08:51 +0000 |
| commit | a27f1e675aa198eb6ff9e3a86cb2f45773c7f567 (patch) | |
| tree | 6e73e3c66ac1775cb787acd146d64cad8c8498bd /llvm/lib | |
| parent | 3aaa71f222159164c2847c3444d73a2e5b0993b0 (diff) | |
| download | bcm5719-llvm-a27f1e675aa198eb6ff9e3a86cb2f45773c7f567.tar.gz bcm5719-llvm-a27f1e675aa198eb6ff9e3a86cb2f45773c7f567.zip | |
[X86] Remove code from combineUIntToFP that tried to favor UINT_TO_FP if legal when zero extending from vXi8/vX816.
The UINT_TO_FP is immediately converted to SINT_TO_FP when the node is re-evaluated because we'll detect that the sign bit is zero.
llvm-svn: 319234
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 50e9f643747..9cbe8546ef2 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -36071,9 +36071,7 @@ static SDValue combineUIntToFP(SDNode *N, SelectionDAG &DAG, InVT.getVectorNumElements()); SDValue P = DAG.getNode(ISD::ZERO_EXTEND, dl, DstVT, Op0); - if (TLI.isOperationLegal(ISD::UINT_TO_FP, DstVT)) - return DAG.getNode(ISD::UINT_TO_FP, dl, VT, P); - + // UINT_TO_FP isn't legal without AVX512 so use SINT_TO_FP. return DAG.getNode(ISD::SINT_TO_FP, dl, VT, P); } |
