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Add support for the %H output modifier.

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Patch by Weiming Zhao.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161768 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2012-08-13 18:18:52 +00:00
parent 365a1d48d8
commit 001d219b97
2 changed files with 24 additions and 2 deletions
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lib/Target/ARM/ARMAsmPrinter.cpp
+15 -2
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@@ -529,10 +529,23 @@ bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
return false;
}
// These modifiers are not yet supported.
// This modifier is not yet supported.
case 'h': // A range of VFP/NEON registers suitable for VLD1/VST1.
case 'H': // The highest-numbered register of a pair.
return true;
case 'H': // The highest-numbered register of a pair.
const MachineOperand &MO = MI->getOperand(OpNum);
if (!MO.isReg())
return true;
const TargetRegisterClass &RC = ARM::GPRRegClass;
const MachineFunction &MF = *MI->getParent()->getParent();
const TargetRegisterInfo *TRI = MF.getTarget().getRegisterInfo();
unsigned RegIdx = TRI->getEncodingValue(MO.getReg());
RegIdx |= 1; //The odd register is also the higher-numbered one of a pair.
unsigned Reg = RC.getRegister(RegIdx);
O << ARMInstPrinter::getRegisterName(Reg);
return false;
}
}