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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-08-01 13:13:18 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-08-01 13:13:18 +0000 |
| commit | f99f9881e331ea075f49b42f4bf57f1bc93f24dc (patch) | |
| tree | 2db5391ca647c05abbdf39f2409d8b1faa44f203 /llvm/lib | |
| parent | c58c1c5350f84027f090d47ace1986e4914a6275 (diff) | |
| download | bcm5719-llvm-f99f9881e331ea075f49b42f4bf57f1bc93f24dc.tar.gz bcm5719-llvm-f99f9881e331ea075f49b42f4bf57f1bc93f24dc.zip | |
[X86] EltsFromConsecutiveLoads - don't attempt to merge volatile loads (PR42846)
llvm-svn: 367556
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 294ec69e867..6fe906de8cf 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -7572,7 +7572,10 @@ static SDValue LowerAsSplatVectorLoad(SDValue SrcOp, MVT VT, const SDLoc &dl, // Recurse to find a LoadSDNode source and the accumulated ByteOffest. static bool findEltLoadSrc(SDValue Elt, LoadSDNode *&Ld, int64_t &ByteOffset) { if (ISD::isNON_EXTLoad(Elt.getNode())) { - Ld = cast<LoadSDNode>(Elt); + auto *BaseLd = cast<LoadSDNode>(Elt); + if (BaseLd->getMemOperand()->getFlags() & MachineMemOperand::MOVolatile) + return false; + Ld = BaseLd; ByteOffset = 0; return true; } |
