diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2006-03-17 02:36:22 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-03-17 02:36:22 +0000 |
| commit | 8586b953a0e2a69eb80521d2cfa1c50431e79194 (patch) | |
| tree | 900f4c661e1f99ff649d886d0f93a86a05968e2d | |
| parent | 5bd4d48c24ba04455d472c599244a15b80fbe749 (diff) | |
Also fold MOV8r0, MOV16r0, MOV32r0 + store to MOV8mi, MOV16mi, and MOV32mi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26817 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 0805b60ba0..e30a2072a7 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -160,6 +160,11 @@ static MachineInstr *MakeMIInst(unsigned Opcode, unsigned FrameIndex, return 0; } +static MachineInstr *MakeM0Inst(unsigned Opcode, unsigned FrameIndex, + MachineInstr *MI) { + return addFrameReference(BuildMI(Opcode, 5), FrameIndex).addZImm(0); +} + static MachineInstr *MakeRMInst(unsigned Opcode, unsigned FrameIndex, MachineInstr *MI) { const MachineOperand& op = MI->getOperand(0); @@ -328,6 +333,10 @@ MachineInstr* X86RegisterInfo::foldMemoryOperand(MachineInstr* MI, case X86::CMP8ri: return MakeMIInst(X86::CMP8mi , FrameIndex, MI); case X86::CMP16ri: return MakeMIInst(X86::CMP16mi, FrameIndex, MI); case X86::CMP32ri: return MakeMIInst(X86::CMP32mi, FrameIndex, MI); + // Alias instructions + case X86::MOV8r0: return MakeM0Inst(X86::MOV8mi, FrameIndex, MI); + case X86::MOV16r0: return MakeM0Inst(X86::MOV16mi, FrameIndex, MI); + case X86::MOV32r0: return MakeM0Inst(X86::MOV32mi, FrameIndex, MI); // Alias scalar SSE instructions case X86::FsMOVAPSrr: return MakeMRInst(X86::MOVSSmr, FrameIndex, MI); case X86::FsMOVAPDrr: return MakeMRInst(X86::MOVSDmr, FrameIndex, MI); |