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Clean up code a bit.

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llvm-svn: 12615
This commit is contained in:
Alkis Evlogimenos 2004-04-02 18:11:32 +00:00
parent 73afcebba1
commit 27ed33c309
1 changed files with 7 additions and 14 deletions
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21
lib/Target/X86/InstSelectSimple.cpp
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@ -1674,18 +1674,11 @@ void ISel::emitSimpleBinaryOperation(MachineBasicBlock *MBB,
if (ConstantInt *CI = dyn_cast<ConstantInt>(Op0)) {
if (CI->isNullValue()) {
unsigned op1Reg = getReg(Op1, MBB, IP);
switch (Class) {
default: assert(0 && "Unknown class for this function!");
case cByte:
BuildMI(*MBB, IP, X86::NEG8r, 1, DestReg).addReg(op1Reg);
return;
case cShort:
BuildMI(*MBB, IP, X86::NEG16r, 1, DestReg).addReg(op1Reg);
return;
case cInt:
BuildMI(*MBB, IP, X86::NEG32r, 1, DestReg).addReg(op1Reg);
return;
}
static unsigned const NEGTab[] = {
X86::NEG8r, X86::NEG16r, X86::NEG32r
};
BuildMI(*MBB, IP, NEGTab[Class], 1, DestReg).addReg(op1Reg);
return;
}
} else if (ConstantFP *CFP = dyn_cast<ConstantFP>(Op0))
if (CFP->isExactlyValue(-0.0)) {
@ -1716,8 +1709,8 @@ void ISel::emitSimpleBinaryOperation(MachineBasicBlock *MBB,
// add X, 1 -> inc X
if (OperatorClass == 0 && Op1C->equalsInt(1)) {
static unsigned const DECTab[] = { X86::INC8r, X86::INC16r, X86::INC32r };
BuildMI(*MBB, IP, DECTab[Class], 1, DestReg).addReg(Op0r);
static unsigned const INCTab[] = { X86::INC8r, X86::INC16r, X86::INC32r };
BuildMI(*MBB, IP, INCTab[Class], 1, DestReg).addReg(Op0r);
return;
}