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Re-commit 141203, but much more conservative.

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Just pull the instruction name, but don't change the order of anything
else. That keeps --debug happy and non-crashing, but doesn't change
how the worklist gets built.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141210 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2011-10-05 20:53:43 +00:00
parent e2999b4899
commit 35d9da3d3b
1 changed files with 3 additions and 3 deletions
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6
lib/Transforms/InstCombine/InstructionCombining.cpp
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@@ -2017,13 +2017,13 @@ bool InstCombiner::DoOneIteration(Function &F, unsigned Iteration) {
// Everything uses the new instruction now. // Everything uses the new instruction now.
I->replaceAllUsesWith(Result); I->replaceAllUsesWith(Result);
// Move the name to the new instruction first.
Result->takeName(I);
// Push the new instruction and any users onto the worklist. // Push the new instruction and any users onto the worklist.
Worklist.Add(Result); Worklist.Add(Result);
Worklist.AddUsersToWorkList(*Result); Worklist.AddUsersToWorkList(*Result);
// Move the name to the new instruction first.
Result->takeName(I);
// Insert the new instruction into the basic block... // Insert the new instruction into the basic block...
BasicBlock *InstParent = I->getParent(); BasicBlock *InstParent = I->getParent();
BasicBlock::iterator InsertPos = I; BasicBlock::iterator InsertPos = I;