Commit 42e23e97 authored by Bill Wendling's avatar Bill Wendling
Browse files

$ svn merge -c 113848 https://llvm.org/svn/llvm-project/llvm/trunk 

--- Merging r113848 into '.':
U    lib/CodeGen/PeepholeOptimizer.cpp

must not peephole away side effects

llvm-svn: 113913
parent 68cf62a5

llvm/lib/CodeGen/PeepholeOptimizer.cpp

+2 −1
Original line number Diff line number Diff line
@@ -272,7 +272,8 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) { 
           MII = I->begin(), ME = I->end(); MII != ME; ) {

      MachineInstr *MI = &*MII;



      if (MI->getDesc().isCompare()) {

      if (MI->getDesc().isCompare() &&

          !MI->getDesc().hasUnmodeledSideEffects()) {

        ++MII; // The iterator may become invalid if the compare is deleted.

        Changed |= OptimizeCmpInstr(MI, MBB);

      } else {