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Implement some hooks, make printOperand abort if unknown modifiers are

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present.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84613 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-10-20 06:15:28 +00:00
parent c6b8a99207
commit bf16faa16a
2 changed files with 129 additions and 9 deletions
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128
lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
View File

@ -33,15 +33,34 @@ void ARMInstPrinter::printInst(const MCInst *MI) { printInstruction(MI); }
void ARMInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
const char *Modifier) {
// FIXME: TURN ASSERT ON.
//assert((Modifier == 0 || Modifier[0] == 0) && "Cannot print modifiers");
const MCOperand &Op = MI->getOperand(OpNo);
if (Op.isReg()) {
O << getRegisterName(Op.getReg());
unsigned Reg = Op.getReg();
if (Modifier && strcmp(Modifier, "dregpair") == 0) {
// FIXME: Breaks e.g. ARM/vmul.ll.
assert(0);
/*
unsigned DRegLo = TRI->getSubReg(Reg, 5); // arm_dsubreg_0
unsigned DRegHi = TRI->getSubReg(Reg, 6); // arm_dsubreg_1
O << '{'
<< getRegisterName(DRegLo) << ',' << getRegisterName(DRegHi)
<< '}';*/
} else if (Modifier && strcmp(Modifier, "lane") == 0) {
assert(0);
/*
unsigned RegNum = ARMRegisterInfo::getRegisterNumbering(Reg);
unsigned DReg = TRI->getMatchingSuperReg(Reg, RegNum & 1 ? 2 : 1,
&ARM::DPR_VFP2RegClass);
O << getRegisterName(DReg) << '[' << (RegNum & 1) << ']';
*/
} else {
O << getRegisterName(Reg);
}
} else if (Op.isImm()) {
assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
O << '#' << Op.getImm();
} else {
assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
assert(Op.isExpr() && "unknown operand kind in printOperand");
Op.getExpr()->print(O, &MAI);
}
@ -143,6 +162,64 @@ void ARMInstPrinter::printAddrMode2Operand(const MCInst *MI, unsigned Op) {
O << "]";
}
void ARMInstPrinter::printAddrMode2OffsetOperand(const MCInst *MI,
unsigned OpNum) {
const MCOperand &MO1 = MI->getOperand(OpNum);
const MCOperand &MO2 = MI->getOperand(OpNum+1);
if (!MO1.getReg()) {
unsigned ImmOffs = ARM_AM::getAM2Offset(MO2.getImm());
assert(ImmOffs && "Malformed indexed load / store!");
O << '#' << (char)ARM_AM::getAM2Op(MO2.getImm()) << ImmOffs;
return;
}
O << (char)ARM_AM::getAM2Op(MO2.getImm()) << getRegisterName(MO1.getReg());
if (unsigned ShImm = ARM_AM::getAM2Offset(MO2.getImm()))
O << ", "
<< ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO2.getImm()))
<< " #" << ShImm;
}
void ARMInstPrinter::printAddrMode3Operand(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);
O << '[' << getRegisterName(MO1.getReg());
if (MO2.getReg()) {
O << ", " << (char)ARM_AM::getAM3Op(MO3.getImm())
<< getRegisterName(MO2.getReg()) << ']';
return;
}
if (unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm()))
O << ", #"
<< (char)ARM_AM::getAM3Op(MO3.getImm())
<< ImmOffs;
O << ']';
}
void ARMInstPrinter::printAddrMode3OffsetOperand(const MCInst *MI,
unsigned OpNum) {
const MCOperand &MO1 = MI->getOperand(OpNum);
const MCOperand &MO2 = MI->getOperand(OpNum+1);
if (MO1.getReg()) {
O << (char)ARM_AM::getAM3Op(MO2.getImm())
<< getRegisterName(MO1.getReg());
return;
}
unsigned ImmOffs = ARM_AM::getAM3Offset(MO2.getImm());
assert(ImmOffs && "Malformed indexed load / store!");
O << "#"
<< (char)ARM_AM::getAM3Op(MO2.getImm())
<< ImmOffs;
}
void ARMInstPrinter::printAddrMode4Operand(const MCInst *MI, unsigned OpNum,
const char *Modifier) {
@ -170,6 +247,44 @@ void ARMInstPrinter::printAddrMode4Operand(const MCInst *MI, unsigned OpNum,
}
}
void ARMInstPrinter::printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
const char *Modifier) {
const MCOperand &MO1 = MI->getOperand(OpNum);
const MCOperand &MO2 = MI->getOperand(OpNum+1);
if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
printOperand(MI, OpNum);
return;
}
if (Modifier && strcmp(Modifier, "submode") == 0) {
ARM_AM::AMSubMode Mode = ARM_AM::getAM5SubMode(MO2.getImm());
if (MO1.getReg() == ARM::SP) {
bool isFLDM = (MI->getOpcode() == ARM::FLDMD ||
MI->getOpcode() == ARM::FLDMS);
O << ARM_AM::getAMSubModeAltStr(Mode, isFLDM);
} else
O << ARM_AM::getAMSubModeStr(Mode);
return;
} else if (Modifier && strcmp(Modifier, "base") == 0) {
// Used for FSTM{D|S} and LSTM{D|S} operations.
O << getRegisterName(MO1.getReg());
if (ARM_AM::getAM5WBFlag(MO2.getImm()))
O << "!";
return;
}
O << "[" << getRegisterName(MO1.getReg());
if (unsigned ImmOffs = ARM_AM::getAM5Offset(MO2.getImm())) {
O << ", #"
<< (char)ARM_AM::getAM5Op(MO2.getImm())
<< ImmOffs*4;
}
O << "]";
}
void ARMInstPrinter::printRegisterList(const MCInst *MI, unsigned OpNum) {
O << "{";
// Always skip the first operand, it's the optional (and implicit writeback).
@ -201,6 +316,11 @@ void ARMInstPrinter::printCPInstOperand(const MCInst *MI, unsigned OpNum,
abort();
}
void ARMInstPrinter::printNoHashImmediate(const MCInst *MI, unsigned OpNum) {
O << MI->getOperand(OpNum).getImm();
}
void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum) {
// FIXME: remove this.
abort();

10
lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
View File

@ -40,13 +40,13 @@ public:
void printSORegOperand(const MCInst *MI, unsigned OpNum);
void printAddrMode2Operand(const MCInst *MI, unsigned OpNum);
void printAddrMode2OffsetOperand(const MCInst *MI, unsigned OpNum) {}
void printAddrMode3Operand(const MCInst *MI, unsigned OpNum) {}
void printAddrMode3OffsetOperand(const MCInst *MI, unsigned OpNum) {}
void printAddrMode2OffsetOperand(const MCInst *MI, unsigned OpNum);
void printAddrMode3Operand(const MCInst *MI, unsigned OpNum);
void printAddrMode3OffsetOperand(const MCInst *MI, unsigned OpNum);
void printAddrMode4Operand(const MCInst *MI, unsigned OpNum,
const char *Modifier = 0);
void printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
const char *Modifier = 0) {}
const char *Modifier = 0);
void printAddrMode6Operand(const MCInst *MI, unsigned OpNum) {}
void printAddrModePCOperand(const MCInst *MI, unsigned OpNum,
const char *Modifier = 0) {}
@ -76,7 +76,7 @@ public:
void printJTBlockOperand(const MCInst *MI, unsigned OpNum) {}
void printJT2BlockOperand(const MCInst *MI, unsigned OpNum) {}
void printTBAddrMode(const MCInst *MI, unsigned OpNum) {}
void printNoHashImmediate(const MCInst *MI, unsigned OpNum) {}
void printNoHashImmediate(const MCInst *MI, unsigned OpNum);
void printPCLabel(const MCInst *MI, unsigned OpNum);
// FIXME: Implement.