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| author | Chris Lattner <sabre@nondot.org> | 2004-01-12 04:13:56 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-01-12 04:13:56 +0000 |
| commit | 5f16a13896f6620638397ab2434f8736412ddcdc (patch) | |
| tree | 74448804ebd450e5fae322059f90c50b6605fe7b /lib/Transforms | |
| parent | 1daee8b010003e8578824877f0dbe407b554b52d (diff) | |
Do not hack on volatile loads. I'm not sure what the point of a volatile load
from constant memory is, but lets not take chances.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10765 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index dad78ac81c..74433d616e 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -2064,6 +2064,8 @@ static Constant *GetGEPGlobalInitializer(Constant *C, ConstantExpr *CE) { Instruction *InstCombiner::visitLoadInst(LoadInst &LI) { Value *Op = LI.getOperand(0); + if (LI.isVolatile()) return 0; + if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Op)) Op = CPR->getValue(); |