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| author | Owen Anderson <resistor@mac.com> | 2008-07-28 20:52:42 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2008-07-28 20:52:42 +0000 |
| commit | 813bf7af7f62c0a8cff9bcefadab766cd85641c2 (patch) | |
| tree | 65d39dc478f9a41bf9cf7accb691a62e115d16e5 /llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp | |
| parent | c5d24d64cfc60d1c48b2cdc70e3eb6e88d44c6bc (diff) | |
| download | bcm5719-llvm-813bf7af7f62c0a8cff9bcefadab766cd85641c2.tar.gz bcm5719-llvm-813bf7af7f62c0a8cff9bcefadab766cd85641c2.zip | |
Don't remove volatile loads. Thanks to Duncan for noticing this one.
llvm-svn: 54144
Diffstat (limited to 'llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp index 0011d9566e3..b75d5c4be7e 100644 --- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp +++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp @@ -183,7 +183,7 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) { Instruction* dep = MD.getDependency(S); DominatorTree& DT = getAnalysis<DominatorTree>(); - if (S->getParent() == L->getParent() && + if (!S->isVolatile() && S->getParent() == L->getParent() && S->getPointerOperand() == L->getPointerOperand() && ( dep == MemoryDependenceAnalysis::None || dep == MemoryDependenceAnalysis::NonLocal || |
