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Re-commit r98683 ("remove redundant writeback flag from ARM address mode 6")

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with changes to add a separate optional register update argument.  Change all
the NEON instructions with address register writeback to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99095 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2010-03-20 22:13:40 +00:00
parent d5fadaf56e
commit 226036ee73
9 changed files with 145 additions and 165 deletions
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23
lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
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@@ -428,17 +428,22 @@ void ARMInstPrinter::printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
void ARMInstPrinter::printAddrMode6Operand(const MCInst *MI, unsigned OpNum) {
const MCOperand &MO1 = MI->getOperand(OpNum);
const MCOperand &MO2 = MI->getOperand(OpNum+1);
const MCOperand &MO3 = MI->getOperand(OpNum+2);
// FIXME: No support yet for specifying alignment.
O << '[' << getRegisterName(MO1.getReg()) << ']';
if (ARM_AM::getAM6WBFlag(MO3.getImm())) {
if (MO2.getReg() == 0)
O << '!';
else
O << ", " << getRegisterName(MO2.getReg());
O << "[" << getRegisterName(MO1.getReg());
if (MO2.getImm()) {
// FIXME: Both darwin as and GNU as violate ARM docs here.
O << ", :" << MO2.getImm();
}
O << "]";
}
void ARMInstPrinter::printAddrMode6OffsetOperand(const MCInst *MI,
unsigned OpNum) {
const MCOperand &MO = MI->getOperand(OpNum);
if (MO.getReg() == 0)
O << "!";
else
O << ", " << getRegisterName(MO.getReg());
}
void ARMInstPrinter::printAddrModePCOperand(const MCInst *MI, unsigned OpNum,