vendor/llvm/llvm-trunk-r290819

1 files changed, 1 insertions, 8 deletions

diff --git a/lib/CodeGen/DeadMachineInstructionElim.cpp b/lib/CodeGen/DeadMachineInstructionElim.cpp
index 0b8dc7a86ada..17c229a216ae 100644
--- a/lib/CodeGen/DeadMachineInstructionElim.cpp
+++ b/lib/CodeGen/DeadMachineInstructionElim.cpp
@@ -122,7 +122,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
     // liveness as we go.
     for (MachineBasicBlock::reverse_iterator MII = MBB.rbegin(),
          MIE = MBB.rend(); MII != MIE; ) {
-      MachineInstr *MI = &*MII;
+      MachineInstr *MI = &*MII++;
 
       // If the instruction is dead, delete it!
       if (isDead(MI)) {
@@ -133,9 +133,6 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
         MI->eraseFromParentAndMarkDBGValuesForRemoval();
         AnyChanges = true;
         ++NumDeletes;
-        MIE = MBB.rend();
-        // MII is now pointing to the next instruction to process,
-        // so don't increment it.
         continue;
       }
 
@@ -169,10 +166,6 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
           }
         }
       }
-
-      // We didn't delete the current instruction, so increment MII to
-      // the next one.
-      ++MII;
     }
   }