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Support Registers of the form (B8+ rd) for example

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4798 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-11-21 02:00:20 +00:00
parent 97ad9e1fea
commit 77875d88d0
2 changed files with 110 additions and 20 deletions
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65
lib/Target/X86/Printer.cpp
View File

@ -78,7 +78,11 @@ static void printOp(std::ostream &O, const MachineOperand &MO,
else
O << "%reg" << MO.getReg();
return;
case MachineOperand::MO_SignExtendedImmed:
case MachineOperand::MO_UnextendedImmed:
O << (int)MO.getImmedValue();
return;
default:
O << "<unknown op ty>"; return;
}
@ -97,10 +101,24 @@ static std::ostream &toHex(std::ostream &O, unsigned char V) {
return O;
}
static std::ostream &emitConstant(std::ostream &O, unsigned Val, unsigned Size){
// Output the constant in little endian byte order...
for (unsigned i = 0; i != Size; ++i) {
toHex(O, Val) << " ";
Val >>= 8;
}
return O;
}
static bool isReg(const MachineOperand &MO) {
return MO.getType()==MachineOperand::MO_VirtualRegister ||
MO.getType()==MachineOperand::MO_MachineRegister;
return MO.getType() == MachineOperand::MO_VirtualRegister ||
MO.getType() == MachineOperand::MO_MachineRegister;
}
static bool isImmediate(const MachineOperand &MO) {
return MO.getType() == MachineOperand::MO_SignExtendedImmed ||
MO.getType() == MachineOperand::MO_UnextendedImmed;
}
@ -150,11 +168,12 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
switch (Desc.TSFlags & X86II::FormMask) {
case X86II::OtherFrm:
O << "\t\t";
O << "\t\t\t";
O << "-"; MI->print(O, TM);
break;
case X86II::RawFrm:
toHex(O, getBaseOpcodeFor(Opcode)) << "\t\t";
toHex(O, getBaseOpcodeFor(Opcode));
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
@ -165,9 +184,35 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
return;
case X86II::AddRegFrm:
O << "\t\t-"; MI->print(O, TM); break;
case X86II::AddRegFrm: {
// There are currently two forms of acceptable AddRegFrm instructions.
// Either the instruction JUST takes a single register (like inc, dec, etc),
// or it takes a register and an immediate of the same size as the register
// (move immediate f.e.).
//
assert(isReg(MI->getOperand(0)) &&
(MI->getNumOperands() == 1 ||
(MI->getNumOperands() == 2 && isImmediate(MI->getOperand(1)))) &&
"Illegal form for AddRegFrm instruction!");
unsigned Reg = MI->getOperand(0).getReg();
toHex(O, getBaseOpcodeFor(Opcode) + getX86RegNum(Reg)) << " ";
if (MI->getNumOperands() == 2) {
unsigned Size = 4;
emitConstant(O, MI->getOperand(1).getImmedValue(), Size);
}
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
if (MI->getNumOperands() == 2) {
O << ", ";
printOp(O, MI->getOperand(MI->getNumOperands()-1), RI);
}
O << "\n";
return;
}
case X86II::MRMDestReg: {
// There are two acceptable forms of MRMDestReg instructions, those with 3
// and 2 operands:
@ -193,7 +238,7 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
unsigned ExtraReg = MI->getOperand(MI->getNumOperands()-1).getReg();
toHex(O, regModRMByte(ModRMReg, getX86RegNum(ExtraReg)));
O << "\t\t";
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
O << ", ";
@ -225,7 +270,7 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
unsigned ExtraReg = MI->getOperand(0).getReg();
toHex(O, regModRMByte(ModRMReg, getX86RegNum(ExtraReg)));
O << "\t";
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
O << ", ";
@ -236,6 +281,6 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
case X86II::MRMDestMem:
case X86II::MRMSrcMem:
default:
O << "\t\t-"; MI->print(O, TM); break;
O << "\t\t\t-"; MI->print(O, TM); break;
}
}

65
lib/Target/X86/X86AsmPrinter.cpp
View File

@ -78,7 +78,11 @@ static void printOp(std::ostream &O, const MachineOperand &MO,
else
O << "%reg" << MO.getReg();
return;
case MachineOperand::MO_SignExtendedImmed:
case MachineOperand::MO_UnextendedImmed:
O << (int)MO.getImmedValue();
return;
default:
O << "<unknown op ty>"; return;
}
@ -97,10 +101,24 @@ static std::ostream &toHex(std::ostream &O, unsigned char V) {
return O;
}
static std::ostream &emitConstant(std::ostream &O, unsigned Val, unsigned Size){
// Output the constant in little endian byte order...
for (unsigned i = 0; i != Size; ++i) {
toHex(O, Val) << " ";
Val >>= 8;
}
return O;
}
static bool isReg(const MachineOperand &MO) {
return MO.getType()==MachineOperand::MO_VirtualRegister ||
MO.getType()==MachineOperand::MO_MachineRegister;
return MO.getType() == MachineOperand::MO_VirtualRegister ||
MO.getType() == MachineOperand::MO_MachineRegister;
}
static bool isImmediate(const MachineOperand &MO) {
return MO.getType() == MachineOperand::MO_SignExtendedImmed ||
MO.getType() == MachineOperand::MO_UnextendedImmed;
}
@ -150,11 +168,12 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
switch (Desc.TSFlags & X86II::FormMask) {
case X86II::OtherFrm:
O << "\t\t";
O << "\t\t\t";
O << "-"; MI->print(O, TM);
break;
case X86II::RawFrm:
toHex(O, getBaseOpcodeFor(Opcode)) << "\t\t";
toHex(O, getBaseOpcodeFor(Opcode));
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
@ -165,9 +184,35 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
return;
case X86II::AddRegFrm:
O << "\t\t-"; MI->print(O, TM); break;
case X86II::AddRegFrm: {
// There are currently two forms of acceptable AddRegFrm instructions.
// Either the instruction JUST takes a single register (like inc, dec, etc),
// or it takes a register and an immediate of the same size as the register
// (move immediate f.e.).
//
assert(isReg(MI->getOperand(0)) &&
(MI->getNumOperands() == 1 ||
(MI->getNumOperands() == 2 && isImmediate(MI->getOperand(1)))) &&
"Illegal form for AddRegFrm instruction!");
unsigned Reg = MI->getOperand(0).getReg();
toHex(O, getBaseOpcodeFor(Opcode) + getX86RegNum(Reg)) << " ";
if (MI->getNumOperands() == 2) {
unsigned Size = 4;
emitConstant(O, MI->getOperand(1).getImmedValue(), Size);
}
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
if (MI->getNumOperands() == 2) {
O << ", ";
printOp(O, MI->getOperand(MI->getNumOperands()-1), RI);
}
O << "\n";
return;
}
case X86II::MRMDestReg: {
// There are two acceptable forms of MRMDestReg instructions, those with 3
// and 2 operands:
@ -193,7 +238,7 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
unsigned ExtraReg = MI->getOperand(MI->getNumOperands()-1).getReg();
toHex(O, regModRMByte(ModRMReg, getX86RegNum(ExtraReg)));
O << "\t\t";
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
O << ", ";
@ -225,7 +270,7 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
unsigned ExtraReg = MI->getOperand(0).getReg();
toHex(O, regModRMByte(ModRMReg, getX86RegNum(ExtraReg)));
O << "\t";
O << "\n\t\t\t\t";
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
O << ", ";
@ -236,6 +281,6 @@ void X86InstrInfo::print(const MachineInstr *MI, std::ostream &O,
case X86II::MRMDestMem:
case X86II::MRMSrcMem:
default:
O << "\t\t-"; MI->print(O, TM); break;
O << "\t\t\t-"; MI->print(O, TM); break;
}
}