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implement basic support for memory operands and crbit operands,

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this fixes 3 more ppc tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119065 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-11-14 20:22:56 +00:00
parent 14b0c056e6
commit fdb2ded765
2 changed files with 72 additions and 5 deletions
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65
lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
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@ -88,6 +88,71 @@ void PPCInstPrinter::printS16X4ImmOperand(const MCInst *MI, unsigned OpNo,
#endif
}
void PPCInstPrinter::printcrbitm(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
unsigned CCReg = MI->getOperand(OpNo).getReg();
unsigned RegNo;
switch (CCReg) {
default: assert(0 && "Unknown CR register");
case PPC::CR0: RegNo = 0; break;
case PPC::CR1: RegNo = 1; break;
case PPC::CR2: RegNo = 2; break;
case PPC::CR3: RegNo = 3; break;
case PPC::CR4: RegNo = 4; break;
case PPC::CR5: RegNo = 5; break;
case PPC::CR6: RegNo = 6; break;
case PPC::CR7: RegNo = 7; break;
}
O << (0x80 >> RegNo);
}
void PPCInstPrinter::printMemRegImm(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
printSymbolLo(MI, OpNo, O);
O << '(';
assert(MI->getOperand(OpNo+1).isReg() && "Bad operand");
// FIXME: Simplify.
if (MI->getOperand(OpNo+1).isReg() &&
MI->getOperand(OpNo+1).getReg() == PPC::R0)
O << "0";
else
printOperand(MI, OpNo+1, O);
O << ')';
}
void PPCInstPrinter::printMemRegImmShifted(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
if (MI->getOperand(OpNo).isImm())
printS16X4ImmOperand(MI, OpNo, O);
else
printSymbolLo(MI, OpNo, O);
O << '(';
assert(MI->getOperand(OpNo+1).isReg() && "Bad operand");
// FIXME: Simplify.
if (MI->getOperand(OpNo+1).isReg() &&
MI->getOperand(OpNo+1).getReg() == PPC::R0)
O << "0";
else
printOperand(MI, OpNo+1, O);
O << ')';
}
void PPCInstPrinter::printMemRegReg(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
// When used as the base register, r0 reads constant zero rather than
// the value contained in the register. For this reason, the darwin
// assembler requires that we print r0 as 0 (no r) when used as the base.
if (MI->getOperand(OpNo).getReg() == PPC::R0)
O << "0";
else
printOperand(MI, OpNo, O);
O << ", ";
printOperand(MI, OpNo+1, O);
}
/// stripRegisterPrefix - This method strips the character prefix from a
/// register name so that only the number is left. Used by for linux asm.

12
lib/Target/PowerPC/InstPrinter/PPCInstPrinter.h
View File

@ -55,15 +55,17 @@ public:
void printCallOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printAbsAddrOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printcrbitm(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printcrbitm(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printMemRegImm(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printMemRegImmShifted(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printMemRegReg(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printMemRegImm(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printMemRegImmShifted(const MCInst *MI, unsigned OpNo, raw_ostream &O);
void printMemRegReg(const MCInst *MI, unsigned OpNo, raw_ostream &O);
// FIXME: Remove
void PrintSpecial(const MCInst *MI, raw_ostream &O, const char *Modifier) {}
void printSymbolLo(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printSymbolLo(const MCInst *MI, unsigned OpNo, raw_ostream &O) {
printS16ImmOperand(MI, OpNo, O);
}
void printSymbolHi(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printPICLabel(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}
void printTOCEntryLabel(const MCInst *MI, unsigned OpNo, raw_ostream &O) {}