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some comments and cleanup

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llvm-svn: 73818
This commit is contained in:
Chris Lattner 2009-06-20 07:59:10 +00:00
parent 7b43ca847d
commit 3ffae2f77e
2 changed files with 14 additions and 15 deletions
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12
lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
View File

@ -818,9 +818,17 @@ void X86ATTAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
TmpInst.addOperand(MCOp);
}
if (TmpInst.getOpcode() == X86::LEA64_32r) {
// Should handle the 'subreg rewriting' for the lea64_32mem operand.
switch (TmpInst.getOpcode()) {
case X86::LEA64_32r:
// Handle the 'subreg rewriting' for the lea64_32mem operand.
lower_lea64_32mem(&TmpInst, 1);
break;
case X86::CALL64pcrel32:
case X86::CALLpcrel32:
case X86::TAILJMPd:
// The target operand is pc-relative, not an absolute reference.
// FIXME: this should be an operand property, not an asm format modifier.
;
}
// FIXME: Convert TmpInst.

17
lib/Target/X86/AsmPrinter/X86ATTInstPrinter.cpp
View File

@ -348,7 +348,6 @@ void X86ATTAsmPrinter::printOperand(const MCInst *MI, unsigned OpNo,
}
void X86ATTAsmPrinter::printLeaMemReference(const MCInst *MI, unsigned Op) {
const char *Modifier = 0;
bool NotRIPRel = false;
const MCOperand &BaseReg = MI->getOperand(Op);
@ -368,28 +367,20 @@ void X86ATTAsmPrinter::printLeaMemReference(const MCInst *MI, unsigned Op) {
}
if (IndexReg.getReg() || BaseReg.getReg()) {
unsigned ScaleVal = MI->getOperand(Op+1).getImm();
unsigned BaseRegOperand = 0, IndexRegOperand = 2;
// There are cases where we can end up with ESP/RSP in the indexreg slot.
// If this happens, swap the base/index register to support assemblers that
// don't work when the index is *SP.
// FIXME: REMOVE THIS.
if (IndexReg.getReg() == X86::ESP || IndexReg.getReg() == X86::RSP) {
assert(ScaleVal == 1 && "Scale not supported for stack pointer!");
abort();
//std::swap(BaseReg, IndexReg);
//std::swap(BaseRegOperand, IndexRegOperand);
}
assert(IndexReg.getReg() != X86::ESP && IndexReg.getReg() != X86::RSP);
O << '(';
if (BaseReg.getReg())
printOperand(MI, Op+BaseRegOperand, Modifier);
printOperand(MI, Op);
if (IndexReg.getReg()) {
O << ',';
printOperand(MI, Op+IndexRegOperand, Modifier);
if (ScaleVal != 1)
printOperand(MI, Op+2);
if (MI->getOperand(Op+1).getImm() != 1)
O << ',' << ScaleVal;
}
O << ')';