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Fix a bug where LICM was not updating AA information properly when sinking

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a pointer value out of a loop causing it to be duplicated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20828 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-03-25 00:22:36 +00:00
parent 20da24c4b9
commit 70ac2dcb84
1 changed files with 2 additions and 1 deletions
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3
lib/Transforms/Scalar/LICM.cpp
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@ -302,7 +302,7 @@ void LICM::SinkRegion(DominatorTree::Node *N) {
// outside of the loop. In this case, it doesn't even matter if the // outside of the loop. In this case, it doesn't even matter if the
// operands of the instruction are loop invariant. // operands of the instruction are loop invariant.
// //
if (canSinkOrHoistInst(I) && isNotUsedInLoop(I)) { if (isNotUsedInLoop(I) && canSinkOrHoistInst(I)) {
++II; ++II;
sink(I); sink(I);
} }
@ -530,6 +530,7 @@ void LICM::sink(Instruction &I) {
New = &I; New = &I;
} else { } else {
New = I.clone(); New = I.clone();
CurAST->copyValue(&I, New);
if (!I.getName().empty()) if (!I.getName().empty())
New->setName(I.getName()+".le"); New->setName(I.getName()+".le");
ExitBlock->getInstList().insert(InsertPt, New); ExitBlock->getInstList().insert(InsertPt, New);