EXTRACT_SUBREG coalescing support. The coalescer now treats EXTRACT_SUBREG like

[oota-llvm.git] / include / llvm / CodeGen / MachineInstr.h

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 3dbda8dc787086b34f8f20b14432a051c9102ec2..beba6923ee7832749f0569aeccb875b61cfb7dd3 100644 (file)
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -418,6 +418,10 @@ public:
   /// none is found.
   int findFirstPredOperandIdx() const;
   
+  /// isRegReDefinedByTwoAddr - Returns true if the Reg re-definition is due
+  /// to two addr elimination.
+  bool isRegReDefinedByTwoAddr(unsigned Reg) const;
+
   /// copyKillDeadInfo - Copies kill / dead operand properties from MI.
   ///
   void copyKillDeadInfo(const MachineInstr *MI);