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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-03 23:49:20 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-03 23:49:20 +0000 |
| commit | 9551919e6c3146ff0bce6843ff2c382558d7ea01 (patch) | |
| tree | deee93e8e8453be55f69d1ca1592f34406f01b56 /lib/CodeGen/RegAllocLocal.cpp | |
| parent | 080b7d4073d554d405f9fd81d5a5bee529f755e6 (diff) | |
| download | external_llvm-9551919e6c3146ff0bce6843ff2c382558d7ea01.zip external_llvm-9551919e6c3146ff0bce6843ff2c382558d7ea01.tar.gz external_llvm-9551919e6c3146ff0bce6843ff2c382558d7ea01.tar.bz2 | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102976 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocLocal.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLocal.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp index 920ba57..94456d1 100644 --- a/lib/CodeGen/RegAllocLocal.cpp +++ b/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; |