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| author | Evan Cheng <evan.cheng@apple.com> | 2009-03-19 20:30:06 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-03-19 20:30:06 +0000 |
| commit | 48555e87376e895bb596dd3f4879c6eb3f46ce4a (patch) | |
| tree | 94d6439fe96abe95108b17e195b79975e13be036 /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | 058523d7109339b5445827ac866ebb7e3db1143b (diff) | |
| download | external_llvm-48555e87376e895bb596dd3f4879c6eb3f46ce4a.zip external_llvm-48555e87376e895bb596dd3f4879c6eb3f46ce4a.tar.gz external_llvm-48555e87376e895bb596dd3f4879c6eb3f46ce4a.tar.bz2 | |
Added MachineInstr::isRegTiedToDefOperand to check for two-addressness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67335 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index c70cbb4..3a8f40f 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -1062,8 +1062,6 @@ static bool FilterFoldedOps(MachineInstr *MI, SmallVector<unsigned, 2> &Ops, unsigned &MRInfo, SmallVector<unsigned, 2> &FoldOps) { - const TargetInstrDesc &TID = MI->getDesc(); - MRInfo = 0; for (unsigned i = 0, e = Ops.size(); i != e; ++i) { unsigned OpIdx = Ops[i]; @@ -1075,8 +1073,7 @@ static bool FilterFoldedOps(MachineInstr *MI, MRInfo |= (unsigned)VirtRegMap::isMod; else { // Filter out two-address use operand(s). - if (!MO.isImplicit() && - TID.getOperandConstraint(OpIdx, TOI::TIED_TO) != -1) { + if (MI->isRegTiedToDefOperand(OpIdx)) { MRInfo = VirtRegMap::isModRef; continue; } @@ -2160,8 +2157,7 @@ addIntervalsForSpills(const LiveInterval &li, MachineInstr *LastUse = getInstructionFromIndex(LastUseIdx); int UseIdx = LastUse->findRegisterUseOperandIdx(LI->reg, false); assert(UseIdx != -1); - if (LastUse->getOperand(UseIdx).isImplicit() || - LastUse->getDesc().getOperandConstraint(UseIdx,TOI::TIED_TO) == -1){ + if (!LastUse->isRegTiedToDefOperand(UseIdx)) { LastUse->getOperand(UseIdx).setIsKill(); vrm.addKillPoint(LI->reg, LastUseIdx); } |