diff options
Diffstat (limited to 'lib/CodeGen/PeepholeOptimizer.cpp')
| -rw-r--r-- | lib/CodeGen/PeepholeOptimizer.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp index 15ede91a38..28a4a9e301 100644 --- a/lib/CodeGen/PeepholeOptimizer.cpp +++ b/lib/CodeGen/PeepholeOptimizer.cpp @@ -269,7 +269,8 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) { MII = I->begin(), MIE = I->end(); MII != MIE; ) { MachineInstr *MI = &*MII; - if (MI->getDesc().isCompare()) { + if (MI->getDesc().isCompare() && + !MI->getDesc().hasUnmodeledSideEffects()) { if (OptimizeCmpInstr(MI, MBB, MII)) Changed = true; else |