From 035268eaf79f5492792a965226ea3a2244e6853e Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 24 Sep 2008 00:07:08 +0000 Subject: 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 --- lib/CodeGen/DeadMachineInstructionElim.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen/DeadMachineInstructionElim.cpp') diff --git a/lib/CodeGen/DeadMachineInstructionElim.cpp b/lib/CodeGen/DeadMachineInstructionElim.cpp index c3cdbf0259..392e3b1b77 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; -- cgit v1.2.3