diff options
| 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 | 00264624a90f4b9d243a93de7b963e8717b35c3b (patch) | |
| tree | 840e61e665c91df29ae90baa548c99e93f5705d1 /llvm/lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | a1e883dcf6aab2c09d6d90369e4429d54e025b45 (diff) | |
| download | bcm5719-llvm-00264624a90f4b9d243a93de7b963e8717b35c3b.tar.gz bcm5719-llvm-00264624a90f4b9d243a93de7b963e8717b35c3b.zip | |
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.
llvm-svn: 107879
Diffstat (limited to 'llvm/lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveIntervalAnalysis.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp index 7c07c045dc3..74ca497624f 100644 --- a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/llvm/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) { |
