[llvm-commits] CVS: llvm/include/llvm/Target/TargetInstrInfo.h

[Evan Cheng]

Changes in directory llvm/include/llvm/Target:

TargetInstrInfo.h updated: 1.129 -> 1.130
---
Log message:

Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt).

---
Diffs of the changes:  (+7 -0)

 TargetInstrInfo.h |    7 +++++++
 1 files changed, 7 insertions(+)


Index: llvm/include/llvm/Target/TargetInstrInfo.h
diff -u llvm/include/llvm/Target/TargetInstrInfo.h:1.129 llvm/include/llvm/Target/TargetInstrInfo.h:1.130
--- llvm/include/llvm/Target/TargetInstrInfo.h:1.129	Thu Jun 14 17:03:45 2007
+++ llvm/include/llvm/Target/TargetInstrInfo.h	Fri Jun 15 16:13:54 2007
@@ -415,6 +415,13 @@
     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;