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Inform ScalarEvolutions that we're deleting Values.

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This is the obviously correct part of the fix for PR1487.

llvm-svn: 37457
This commit is contained in:
Nick Lewycky 2007-06-06 03:51:56 +00:00
parent 4c42a30bad
commit 65199a504b
1 changed files with 2 additions and 0 deletions
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2
lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -181,6 +181,7 @@ void IndVarSimplify::EliminatePointerRecurrence(PHINode *PN,
GetElementPtrInst *NGEPI = new GetElementPtrInst(
NCE, Constant::getNullValue(Type::Int32Ty), NewAdd,
GEPI->getName(), GEPI);
SE->deleteInstructionFromRecords(GEPI);
GEPI->replaceAllUsesWith(NGEPI);
GEPI->eraseFromParent();
GEPI = NGEPI;
@ -398,6 +399,7 @@ void IndVarSimplify::RewriteLoopExitValues(Loop *L) {
// the PHI entirely. This is safe, because the NewVal won't be variant
// in the loop, so we don't need an LCSSA phi node anymore.
if (NumPreds == 1) {
SE->deleteInstructionFromRecords(PN);
PN->replaceAllUsesWith(ExitVal);
PN->eraseFromParent();
break;