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Scrunchify code, by adding helpers. No functionality changes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11522 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-17 05:35:13 +00:00
parent 4ff7876c64
commit 7c035b73a4
1 changed files with 45 additions and 56 deletions
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101
lib/Target/X86/X86RegisterInfo.cpp
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@ -92,70 +92,59 @@ bool X86RegisterInfo::canFoldMemoryOperand(MachineInstr* MI,
}
}
static MachineInstr *MakeMRInst(unsigned Opcode, unsigned FrameIndex,
MachineInstr *MI) {
return addFrameReference(BuildMI(Opcode, 5), FrameIndex)
.addReg(MI->getOperand(1).getReg());
}
static MachineInstr *MakeMIInst(unsigned Opcode, unsigned FrameIndex,
MachineInstr *MI) {
return addFrameReference(BuildMI(Opcode, 5), FrameIndex)
.addZImm(MI->getOperand(1).getImmedValue());
}
static MachineInstr *MakeRMInst(unsigned Opcode, unsigned FrameIndex,
MachineInstr *MI) {
return addFrameReference(BuildMI(Opcode, 5)
.addReg(MI->getOperand(0).getReg()), FrameIndex);
}
int X86RegisterInfo::foldMemoryOperand(MachineInstr* MI,
unsigned i,
int FrameIndex) const
{
/// FIXME: This should obviously be autogenerated by tablegen when patterns
/// are available!
MachineBasicBlock& MBB = *MI->getParent();
MachineInstr* NI = 0;
if (i == 0)
switch(MI->getOpcode()) {
case X86::MOVrr8:
NI = addFrameReference(BuildMI(X86::MOVmr8, 5), FrameIndex).addReg(MI->getOperand(1).getReg());
break;
case X86::MOVrr16:
NI = addFrameReference(BuildMI(X86::MOVmr16, 5), FrameIndex).addReg(MI->getOperand(1).getReg());
break;
case X86::MOVrr32:
NI = addFrameReference(BuildMI(X86::MOVmr32, 5), FrameIndex).addReg(MI->getOperand(1).getReg());
break;
case X86::ADDrr8:
NI = addFrameReference(BuildMI(X86::ADDmr8, 5), FrameIndex).addReg(MI->getOperand(1).getReg());
break;
case X86::ADDrr16:
NI = addFrameReference(BuildMI(X86::ADDmr16, 5), FrameIndex).addReg(MI->getOperand(1).getReg());
break;
case X86::ADDrr32:
NI = addFrameReference(BuildMI(X86::ADDmr32, 5), FrameIndex).addReg(MI->getOperand(1).getReg());
break;
case X86::ADDri8:
NI = addFrameReference(BuildMI(X86::ADDmi8, 5), FrameIndex).addZImm(MI->getOperand(1).getImmedValue());
break;
case X86::ADDri16:
NI = addFrameReference(BuildMI(X86::ADDmi16, 5), FrameIndex).addZImm(MI->getOperand(1).getImmedValue());
break;
case X86::ADDri32:
NI = addFrameReference(BuildMI(X86::ADDmi32, 5), FrameIndex).addZImm(MI->getOperand(1).getImmedValue());
break;
default:
if (i == 0) {
switch(MI->getOpcode()) {
case X86::MOVrr8: NI = MakeMRInst(X86::MOVmr8 , FrameIndex, MI); break;
case X86::MOVrr16: NI = MakeMRInst(X86::MOVmr16, FrameIndex, MI); break;
case X86::MOVrr32: NI = MakeMRInst(X86::MOVmr32, FrameIndex, MI); break;
case X86::ADDrr8: NI = MakeMRInst(X86::ADDmr8 , FrameIndex, MI); break;
case X86::ADDrr16: NI = MakeMRInst(X86::ADDmr16, FrameIndex, MI); break;
case X86::ADDrr32: NI = MakeMRInst(X86::ADDmr32, FrameIndex, MI); break;
case X86::ADDri8: NI = MakeMIInst(X86::ADDmi8 , FrameIndex, MI); break;
case X86::ADDri16: NI = MakeMIInst(X86::ADDmi16, FrameIndex, MI); break;
case X86::ADDri32: NI = MakeMIInst(X86::ADDmi32, FrameIndex, MI); break;
default: assert(0 && "Operand cannot be folded");
}
} else if (i == 1) {
switch(MI->getOpcode()) {
case X86::MOVrr8: NI = MakeRMInst(X86::MOVrm8 , FrameIndex, MI); break;
case X86::MOVrr16: NI = MakeRMInst(X86::MOVrm16, FrameIndex, MI); break;
case X86::MOVrr32: NI = MakeRMInst(X86::MOVrm32, FrameIndex, MI); break;
case X86::ADDrr8: NI = MakeRMInst(X86::ADDrm8 , FrameIndex, MI); break;
case X86::ADDrr16: NI = MakeRMInst(X86::ADDrm16, FrameIndex, MI); break;
case X86::ADDrr32: NI = MakeRMInst(X86::ADDrm32, FrameIndex, MI); break;
default: assert(0 && "Operand cannot be folded");
}
} else {
assert(0 && "Operand cannot be folded");
}
else if (i == 1)
switch(MI->getOpcode()) {
case X86::MOVrr8:
NI = addFrameReference(BuildMI(X86::MOVrm8, 5).addReg(MI->getOperand(0).getReg()), FrameIndex);
break;
case X86::MOVrr16:
NI = addFrameReference(BuildMI(X86::MOVrm16, 5).addReg(MI->getOperand(0).getReg()), FrameIndex);
break;
case X86::MOVrr32:
NI = addFrameReference(BuildMI(X86::MOVrm32, 5).addReg(MI->getOperand(0).getReg()), FrameIndex);
break;
case X86::ADDrr8:
NI = addFrameReference(BuildMI(X86::ADDrm8, 5).addReg(MI->getOperand(0).getReg()), FrameIndex);
break;
case X86::ADDrr16:
NI = addFrameReference(BuildMI(X86::ADDrm16, 5).addReg(MI->getOperand(0).getReg()), FrameIndex);
break;
case X86::ADDrr32:
NI = addFrameReference(BuildMI(X86::ADDrm32, 5).addReg(MI->getOperand(0).getReg()), FrameIndex);
break;
default:
assert(0 && "Operand cannot be folded");
}
else
assert(0 && "Operand cannot be folded");
MBB.insert(MBB.erase(MI), NI);
return 0;
}