From: Dan Gohman <gohman@apple.com>
Date: Wed, 24 Sep 2008 00:07:08 +0000 (+0000)
Subject: Set SetStore to false, to allow this pass to delete
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=035268eaf79f5492792a965226ea3a2244e6853e;p=oota-llvm.git

Set SetStore to false, to allow this pass to delete
dead loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56529 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/DeadMachineInstructionElim.cpp b/lib/CodeGen/DeadMachineInstructionElim.cpp
index c3cdbf02597..392e3b1b778 100644
--- a/lib/CodeGen/DeadMachineInstructionElim.cpp
+++ b/lib/CodeGen/DeadMachineInstructionElim.cpp
@@ -46,7 +46,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
   const MachineRegisterInfo &MRI = MF.getRegInfo();
   const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
   BitVector LivePhysRegs;
-  bool SawStore = true;
+  bool SawStore;
 
   // Compute a bitvector to represent all non-allocatable physregs.
   BitVector NonAllocatableRegs = TRI.getAllocatableSet(MF);
@@ -79,6 +79,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
       MachineInstr *MI = &*MII;
 
       // Don't delete instructions with side effects.
+      SawStore = false;
       if (MI->isSafeToMove(&TII, SawStore)) {
         // Examine each operand.
         bool AllDefsDead = true;