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When we delete instructions from the loop, make sure to remove them from the

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AliasSetTracker as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10507 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-12-18 08:12:32 +00:00
parent 2cffeec014
commit ba7df4c482
1 changed files with 2 additions and 0 deletions
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2
lib/Transforms/Scalar/LICM.cpp
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@ -387,6 +387,7 @@ void LICM::sink(Instruction &I) {
if (ExitBlocks.size() == 1) { if (ExitBlocks.size() == 1) {
if (!isExitBlockDominatedByBlockInLoop(ExitBlocks[0], I.getParent())) { if (!isExitBlockDominatedByBlockInLoop(ExitBlocks[0], I.getParent())) {
// Instruction is not used, just delete it. // Instruction is not used, just delete it.
CurAST->remove(&I);
I.getParent()->getInstList().erase(&I); I.getParent()->getInstList().erase(&I);
} else { } else {
// Move the instruction to the start of the exit block, after any PHI // Move the instruction to the start of the exit block, after any PHI
@ -399,6 +400,7 @@ void LICM::sink(Instruction &I) {
} }
} else if (ExitBlocks.size() == 0) { } else if (ExitBlocks.size() == 0) {
// The instruction is actually dead if there ARE NO exit blocks. // The instruction is actually dead if there ARE NO exit blocks.
CurAST->remove(&I);
I.getParent()->getInstList().erase(&I); I.getParent()->getInstList().erase(&I);
} else { } else {
// Otherwise, if we have multiple exits, use the PromoteMem2Reg function to // Otherwise, if we have multiple exits, use the PromoteMem2Reg function to