6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-20 09:24:58 +00:00
Code Issues Projects Releases Wiki Activity

Don't remove volatile loads. Thanks to Duncan for noticing this one.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54144 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2008-07-28 20:52:42 +00:00
parent a5d5af985e
commit 80e051dfde
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Transforms/Scalar/DeadStoreElimination.cpp
View File

@ -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 ||