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| author | Dan Gohman <gohman@apple.com> | 2010-01-12 04:42:54 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-01-12 04:42:54 +0000 |
| commit | c11958030761a1166d51cc3438bce3843de8c025 (patch) | |
| tree | 6c13bdc348bc543e6c029a56e5fbb9e327238749 /llvm/lib/Target/X86/X86InstrInfo.cpp | |
| parent | d49763d200c5f2c497f586c011839277e15bcdd2 (diff) | |
| download | bcm5719-llvm-c11958030761a1166d51cc3438bce3843de8c025.tar.gz bcm5719-llvm-c11958030761a1166d51cc3438bce3843de8c025.zip | |
Reapply the MOV64r0 patch, with a fix: MOV64r0 clobbers EFLAGS.
llvm-svn: 93229
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 52077cfd79d..5ef3354f350 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -1072,12 +1072,16 @@ void X86InstrInfo::reMaterialize(MachineBasicBlock &MBB, switch (Opc) { default: break; case X86::MOV8r0: - case X86::MOV32r0: { + case X86::MOV16r0: + case X86::MOV32r0: + case X86::MOV64r0: { if (!isSafeToClobberEFLAGS(MBB, I)) { switch (Opc) { default: break; case X86::MOV8r0: Opc = X86::MOV8ri; break; + case X86::MOV16r0: Opc = X86::MOV16ri; break; case X86::MOV32r0: Opc = X86::MOV32ri; break; + case X86::MOV64r0: Opc = X86::MOV64ri; break; } Clone = false; } @@ -2344,8 +2348,12 @@ X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, OpcodeTablePtr = &RegOp2MemOpTable2Addr; isTwoAddrFold = true; } else if (i == 0) { // If operand 0 - if (MI->getOpcode() == X86::MOV32r0) + if (MI->getOpcode() == X86::MOV64r0) + NewMI = MakeM0Inst(*this, X86::MOV64mi32, MOs, MI); + else if (MI->getOpcode() == X86::MOV32r0) NewMI = MakeM0Inst(*this, X86::MOV32mi, MOs, MI); + else if (MI->getOpcode() == X86::MOV16r0) + NewMI = MakeM0Inst(*this, X86::MOV16mi, MOs, MI); else if (MI->getOpcode() == X86::MOV8r0) NewMI = MakeM0Inst(*this, X86::MOV8mi, MOs, MI); if (NewMI) @@ -2613,7 +2621,9 @@ bool X86InstrInfo::canFoldMemoryOperand(const MachineInstr *MI, } else if (OpNum == 0) { // If operand 0 switch (Opc) { case X86::MOV8r0: + case X86::MOV16r0: case X86::MOV32r0: + case X86::MOV64r0: return true; default: break; } |
