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| author | Nate Begeman <natebegeman@mac.com> | 2008-07-29 15:49:41 +0000 |
|---|---|---|
| committer | Nate Begeman <natebegeman@mac.com> | 2008-07-29 15:49:41 +0000 |
| commit | fecbc8cff16c31f7481220672657eb2f67e81521 (patch) | |
| tree | 736ff40892fb60546592d0f7e38bcea88657f2db /llvm/lib/Transforms/Scalar/InstructionCombining.cpp | |
| parent | 98b5c16e3bf2f26264925e74f89b8a1d77ea2a1a (diff) | |
| download | bcm5719-llvm-fecbc8cff16c31f7481220672657eb2f67e81521.tar.gz bcm5719-llvm-fecbc8cff16c31f7481220672657eb2f67e81521.zip | |
Add vector shifts to the IR, patch by Eli Friedman.
CodeGen & Clang work coming next.
llvm-svn: 54161
Diffstat (limited to 'llvm/lib/Transforms/Scalar/InstructionCombining.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index da98d0a0fcb..c5f4dea0f0f 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -6368,7 +6368,8 @@ Instruction *InstCombiner::visitAShr(BinaryOperator &I) { return ReplaceInstUsesWith(I, CSI); // See if we can turn a signed shr into an unsigned shr. - if (MaskedValueIsZero(Op0, + if (!isa<VectorType>(I.getType()) && + MaskedValueIsZero(Op0, APInt::getSignBit(I.getType()->getPrimitiveSizeInBits()))) return BinaryOperator::CreateLShr(Op0, I.getOperand(1)); |
