diff options
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index a1ed317bd6..cd22d88efb 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -23,7 +23,6 @@ X86RegisterInfo::X86RegisterInfo() : MRegisterInfo(X86Regs, sizeof(X86Regs)/sizeof(X86Regs[0])) { } - MachineBasicBlock::iterator X86RegisterInfo::storeReg2RegOffset(MachineBasicBlock *MBB, MachineBasicBlock::iterator MBBI, @@ -31,7 +30,15 @@ X86RegisterInfo::storeReg2RegOffset(MachineBasicBlock *MBB, unsigned ImmOffset, unsigned dataSize) const { - MachineInstr *MI = addRegOffset(BuildMI(X86::MOVrm32, 5), + unsigned opcode; + switch (dataSize) { + case 1: opcode = X86::MOVrm8; break; + case 2: opcode = X86::MOVrm16; break; + case 4: opcode = X86::MOVrm32; break; + default: assert(0 && "Invalid data size!"); + } + + MachineInstr *MI = addRegOffset(BuildMI(opcode, 5), DestReg, ImmOffset).addReg(SrcReg); return ++(MBB->insert(MBBI, MI)); } @@ -43,7 +50,15 @@ X86RegisterInfo::loadRegOffset2Reg(MachineBasicBlock *MBB, unsigned ImmOffset, unsigned dataSize) const { - MachineInstr *MI = addRegOffset(BuildMI(X86::MOVmr32, 5).addReg(DestReg), + unsigned opcode; + switch (dataSize) { + case 1: opcode = X86::MOVmr8; break; + case 2: opcode = X86::MOVmr16; break; + case 4: opcode = X86::MOVmr32; break; + default: assert(0 && "Invalid data size!"); + } + + MachineInstr *MI = addRegOffset(BuildMI(opcode, 5).addReg(DestReg), SrcReg, ImmOffset); return ++(MBB->insert(MBBI, MI)); } |