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add isIdenticalTo method to machineinstr/operand.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31087 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-10-20 22:39:36 +00:00
parent 9dcbf0dedc
commit fcfcb6cb50
1 changed files with 19 additions and 0 deletions
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19
include/llvm/CodeGen/MachineInstr.h
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@ -118,6 +118,10 @@ public:
assert(isImm() && "Wrong MachineOperand accessor");
return contents.immedVal;
}
MachineBasicBlock *getMBB() const {
assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
return contents.MBB;
}
MachineBasicBlock *getMachineBasicBlock() const {
assert(isMachineBasicBlock() && "Wrong MachineOperand accessor");
return contents.MBB;
@ -203,6 +207,9 @@ public:
contents.immedVal = Idx;
}
/// isIdenticalTo - Return true if this operand is identical to the specified
/// operand.
bool isIdenticalTo(const MachineOperand &Other) const;
/// ChangeToImmediate - Replace this operand with a new immediate operand of
/// the specified value. If an operand is known to be an immediate already,
@ -279,6 +286,18 @@ public:
return Operands[i];
}
/// isIdenticalTo - Return true if this instruction is identical to (same
/// opcode and same operands as) the specified instruction.
bool isIdenticalTo(const MachineInstr *Other) const {
if (Other->getOpcode() != getOpcode() ||
getNumOperands() != getNumOperands())
return false;
for (unsigned i = 0, e = getNumOperands(); i != e; ++i)
if (!getOperand(i).isIdenticalTo(Other->getOperand(i)))
return false;
return true;
}
/// clone - Create a copy of 'this' instruction that is identical in
/// all ways except the the instruction has no parent, prev, or next.