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Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit.

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llvm-svn: 37642
This commit is contained in:
Evan Cheng 2007-06-19 01:21:41 +00:00
parent e13fac05d7
commit 4358a7f1e9
1 changed files with 20 additions and 16 deletions
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36
include/llvm/Target/TargetInstrInfo.h
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@ -86,6 +86,10 @@ const unsigned M_REMATERIALIZIBLE = 1 << 13;
// register and / or registers that are used to predicate instructions.
const unsigned M_CLOBBERS_PRED = 1 << 14;
// M_NOT_DUPLICABLE - Set if this instruction cannot be safely duplicated.
// (e.g. instructions with unique labels attached).
const unsigned M_NOT_DUPLICABLE = 1 << 15;
// Machine operand flags
// M_LOOK_UP_PTR_REG_CLASS - Set if this operand is a pointer value and it
// requires a callback to look up its register class.
@ -211,15 +215,6 @@ public:
return get(Opcode).Flags & M_RET_FLAG;
}
bool isPredicable(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_PREDICABLE;
}
bool clobbersPredicate(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_CLOBBERS_PRED;
}
bool isReMaterializable(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_REMATERIALIZIBLE;
}
bool isCommutableInstr(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_COMMUTABLE;
}
@ -265,6 +260,22 @@ public:
return get(Opcode).Flags & M_VARIABLE_OPS;
}
bool isPredicable(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_PREDICABLE;
}
bool isReMaterializable(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_REMATERIALIZIBLE;
}
bool clobbersPredicate(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_CLOBBERS_PRED;
}
bool isNotDuplicable(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_NOT_DUPLICABLE;
}
/// getOperandConstraint - Returns the value of the specific constraint if
/// it is set. Returns -1 if it is not set.
int getOperandConstraint(MachineOpCode Opcode, unsigned OpNum,
@ -415,13 +426,6 @@ public:
return false;
}
/// CanBeDuplicated - Returns true if the instruction can be duplicated
/// without causing unforseenable side-effect (e.g. instructions with unique
/// labels attached).
virtual bool CanBeDuplicated(const MachineInstr *MI) const {
return false;
}
/// isUnpredicatedTerminator - Returns true if the instruction is a
/// terminator instruction that has not been predicated.
virtual bool isUnpredicatedTerminator(const MachineInstr *MI) const;