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

1 files changed, 20 insertions, 16 deletions

diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h
index c73fdfb46c..2a1843f8df 100644
--- a/include/llvm/Target/TargetInstrInfo.h
+++ b/include/llvm/Target/TargetInstrInfo.h
@@ -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;