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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-08 16:40:22 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-08 16:40:22 +0000 |
| commit | 0bc25f40402f48ba42fc45403f635b20d90fabb3 (patch) | |
| tree | da54f1273d8837a03ebf46bee701c2c19a05a573 /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | 5c00e077952d14899c3fc26709c7b2dfd36d0209 (diff) | |
Convert EXTRACT_SUBREG to COPY when emitting machine instrs.
EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.
Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107879 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 7c07c045dc..74ca497624 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -192,6 +192,9 @@ bool LiveIntervals::conflictsWithPhysReg(const LiveInterval &li, if (tii_->isMoveInstr(MI, SrcReg, DstReg, SrcSubReg, DstSubReg)) if (SrcReg == li.reg || DstReg == li.reg) continue; + if (MI.isCopy() && MI.getOperand(0).getReg() == li.reg && + MI.getOperand(1).getReg() == li.reg) + continue; // Check for operands using reg for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) { |