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Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37642 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -86,6 +86,10 @@ const unsigned M_REMATERIALIZIBLE = 1 << 13;
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// register and / or registers that are used to predicate instructions.
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const unsigned M_CLOBBERS_PRED = 1 << 14;
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// M_NOT_DUPLICABLE - Set if this instruction cannot be safely duplicated.
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// (e.g. instructions with unique labels attached).
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const unsigned M_NOT_DUPLICABLE = 1 << 15;
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// Machine operand flags
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// M_LOOK_UP_PTR_REG_CLASS - Set if this operand is a pointer value and it
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// requires a callback to look up its register class.
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@ -211,15 +215,6 @@ public:
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return get(Opcode).Flags & M_RET_FLAG;
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}
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bool isPredicable(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_PREDICABLE;
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}
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bool clobbersPredicate(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_CLOBBERS_PRED;
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}
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bool isReMaterializable(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_REMATERIALIZIBLE;
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}
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bool isCommutableInstr(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_COMMUTABLE;
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}
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@ -265,6 +260,22 @@ public:
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return get(Opcode).Flags & M_VARIABLE_OPS;
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}
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bool isPredicable(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_PREDICABLE;
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}
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bool isReMaterializable(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_REMATERIALIZIBLE;
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}
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bool clobbersPredicate(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_CLOBBERS_PRED;
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}
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bool isNotDuplicable(MachineOpCode Opcode) const {
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return get(Opcode).Flags & M_NOT_DUPLICABLE;
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}
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/// getOperandConstraint - Returns the value of the specific constraint if
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/// it is set. Returns -1 if it is not set.
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int getOperandConstraint(MachineOpCode Opcode, unsigned OpNum,
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@ -415,13 +426,6 @@ public:
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return false;
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}
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/// CanBeDuplicated - Returns true if the instruction can be duplicated
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/// without causing unforseenable side-effect (e.g. instructions with unique
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/// labels attached).
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virtual bool CanBeDuplicated(const MachineInstr *MI) const {
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return false;
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}
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/// isUnpredicatedTerminator - Returns true if the instruction is a
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/// terminator instruction that has not been predicated.
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virtual bool isUnpredicatedTerminator(const MachineInstr *MI) const;
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