diff options
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/InstructionSimplify.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Analysis/InstructionSimplify.cpp b/lib/Analysis/InstructionSimplify.cpp index 95d02efd78..c8fb6ae595 100644 --- a/lib/Analysis/InstructionSimplify.cpp +++ b/lib/Analysis/InstructionSimplify.cpp @@ -2841,7 +2841,8 @@ static bool replaceAndRecursivelySimplifyImpl(Instruction *I, Value *SimpleV, if (SimpleV) { for (Value::use_iterator UI = I->use_begin(), UE = I->use_end(); UI != UE; ++UI) - Worklist.push_back(cast<Instruction>(*UI)); + if (*UI != I) + Worklist.push_back(cast<Instruction>(*UI)); // Replace the instruction with its simplified value. I->replaceAllUsesWith(SimpleV); @@ -2869,7 +2870,8 @@ static bool replaceAndRecursivelySimplifyImpl(Instruction *I, Value *SimpleV, // uses of To on the recursive step in most cases. for (Value::use_iterator UI = I->use_begin(), UE = I->use_end(); UI != UE; ++UI) - Worklist.push_back(cast<Instruction>(*UI)); + if (*UI != I) + Worklist.push_back(cast<Instruction>(*UI)); // Replace the instruction with its simplified value. I->replaceAllUsesWith(SimpleV); |