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Allow machine operands to represent global variables with offsets. This is

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useful when you have a reference like:

int A[100];

void foo() { A[10] = 1; }

In this case, &A[10] is a single constant and should be treated as such.

Only MO_GlobalAddress and MO_ExternalSymbol are allowed to use this field, no
other operand type is.

This is another fine patch contributed by Jeff Cohen!!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17007 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-10-15 04:38:41 +00:00
parent 47eb6567e2
commit ca4f6ebefc
3 changed files with 53 additions and 26 deletions
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14
lib/CodeGen/MachineInstr.cpp
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@ -127,7 +127,7 @@ void MachineInstr::SetMachineOperandVal(unsigned i,
assert(i < operands.size()); // may be explicit or implicit op
operands[i].opType = opTy;
operands[i].contents.value = V;
operands[i].regNum = -1;
operands[i].extra.regNum = -1;
}
void
@ -141,7 +141,7 @@ MachineInstr::SetMachineOperandConst(unsigned i,
operands[i].opType = opTy;
operands[i].contents.value = NULL;
operands[i].contents.immedVal = intValue;
operands[i].regNum = -1;
operands[i].extra.regNum = -1;
operands[i].flags = 0;
}
@ -150,7 +150,7 @@ void MachineInstr::SetMachineOperandReg(unsigned i, int regNum) {
operands[i].opType = MachineOperand::MO_MachineRegister;
operands[i].contents.value = NULL;
operands[i].regNum = regNum;
operands[i].extra.regNum = regNum;
}
// Used only by the SPARC back-end.
@ -302,10 +302,14 @@ static void print(const MachineOperand &MO, std::ostream &OS,
OS << "<cp#" << MO.getConstantPoolIndex() << ">";
break;
case MachineOperand::MO_GlobalAddress:
OS << "<ga:" << ((Value*)MO.getGlobal())->getName() << ">";
OS << "<ga:" << ((Value*)MO.getGlobal())->getName();
if (MO.getOffset()) OS << "+" << MO.getOffset();
OS << ">";
break;
case MachineOperand::MO_ExternalSymbol:
OS << "<es:" << MO.getSymbolName() << ">";
OS << "<es:" << MO.getSymbolName();
if (MO.getOffset()) OS << "+" << MO.getOffset();
OS << ">";
break;
default:
assert(0 && "Unrecognized operand type");