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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 | 4dc8a1eda314b03118daf8dbd1e2c237c8082eea (patch) | |
| tree | da54f1273d8837a03ebf46bee701c2c19a05a573 /lib/Target/X86/X86FastISel.cpp | |
| parent | 68abc43d979f4218553846cd099f5a64eb5e62f2 (diff) | |
| download | external_llvm-4dc8a1eda314b03118daf8dbd1e2c237c8082eea.zip external_llvm-4dc8a1eda314b03118daf8dbd1e2c237c8082eea.tar.gz external_llvm-4dc8a1eda314b03118daf8dbd1e2c237c8082eea.tar.bz2 | |
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/Target/X86/X86FastISel.cpp')
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index f60cbcd..153edea 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -1039,11 +1039,10 @@ bool X86FastISel::X86SelectShift(const Instruction *I) { TII.copyRegToReg(*MBB, MBB->end(), CReg, Op1Reg, RC, RC, DL); // The shift instruction uses X86::CL. If we defined a super-register - // of X86::CL, emit an EXTRACT_SUBREG to precisely describe what - // we're doing here. + // of X86::CL, emit a subreg KILL to precisely describe what we're doing here. if (CReg != X86::CL) - BuildMI(MBB, DL, TII.get(TargetOpcode::EXTRACT_SUBREG), X86::CL) - .addReg(CReg).addImm(X86::sub_8bit); + BuildMI(MBB, DL, TII.get(TargetOpcode::KILL), X86::CL) + .addReg(CReg, RegState::Kill); unsigned ResultReg = createResultReg(RC); BuildMI(MBB, DL, TII.get(OpReg), ResultReg).addReg(Op0Reg); |