From b944b39887229761138a3ef86b1d4a29adc6cef1 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Mon, 3 May 2010 23:49:20 +0000 Subject: [PATCH] Remove preexisting kill flags in RegAllocLocal, just like LiveVariables does. This should make it possible to start producing kill flags in isel without breaking stuff. llvm-svn: 102976 --- llvm/lib/CodeGen/RegAllocLocal.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/llvm/lib/CodeGen/RegAllocLocal.cpp b/llvm/lib/CodeGen/RegAllocLocal.cpp index 920ba5732adc..94456d143855 100644 --- a/llvm/lib/CodeGen/RegAllocLocal.cpp +++ b/llvm/lib/CodeGen/RegAllocLocal.cpp @@ -643,7 +643,10 @@ void RALocal::ComputeLocalLiveness(MachineBasicBlock& MBB) { // uses regs before it defs them. if (!MO.isReg() || !MO.getReg() || !MO.isUse()) continue; - + + // Ignore helpful kill flags from earlier passes. + MO.setIsKill(false); + LastUseDef[MO.getReg()] = std::make_pair(I, i); if (TargetRegisterInfo::isVirtualRegister(MO.getReg())) continue;