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Do not hoist volatile loads

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8399 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-09-08 18:17:14 +00:00
parent bd70a31c51
commit 61c1e7e32d
1 changed files with 1 additions and 1 deletions
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2
lib/Transforms/Scalar/LICM.cpp
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@ -316,7 +316,7 @@ bool LICM::SafeToHoist(Instruction &Inst) {
void LICM::visitLoadInst(LoadInst &LI) {
if (isLoopInvariant(LI.getOperand(0)) &&
if (isLoopInvariant(LI.getOperand(0)) && !LI.isVolatile() &&
!pointerInvalidatedByLoop(LI.getOperand(0)) && SafeToHoist(LI)) {
hoist(LI);
++NumHoistedLoads;