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Implement asmprinting for odd-even regpairs

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75974 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2009-07-16 14:04:01 +00:00
parent 3166a9ac5c
commit ed00212f43
3 changed files with 29 additions and 9 deletions
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15
lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
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@@ -181,11 +181,22 @@ void SystemZAsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
const char* Modifier) {
const MachineOperand &MO = MI->getOperand(OpNum);
switch (MO.getType()) {
case MachineOperand::MO_Register:
case MachineOperand::MO_Register: {
assert (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) &&
"Virtual registers should be already mapped!");
O << '%' << TM.getRegisterInfo()->get(MO.getReg()).AsmName;
unsigned Reg = MO.getReg();
if (Modifier && strncmp(Modifier, "subreg", 6) == 0) {
if (strncmp(Modifier + 7, "even", 4) == 0)
Reg = TRI->getSubReg(Reg, SystemZ::SUBREG_EVEN);
else if (strncmp(Modifier + 7, "odd", 3) == 0)
Reg = TRI->getSubReg(Reg, SystemZ::SUBREG_ODD);
else
assert(0 && "Invalid subreg modifier");
}
O << '%' << TRI->getAsmName(Reg);
return;
}
case MachineOperand::MO_Immediate:
O << MO.getImm();
return;