[llvm-commits] [llvm] r52451 - /llvm/trunk/include/llvm/CodeGen/MachineRegisterInfo.h

[Evan Cheng]

Author: evancheng
Date: Wed Jun 18 02:47:55 2008
New Revision: 52451

URL: http://llvm.org/viewvc/llvm-project?rev=52451&view=rev
Log:
Add MachineRegisterInfo::use_empty.

Modified:
    llvm/trunk/include/llvm/CodeGen/MachineRegisterInfo.h

Modified: llvm/trunk/include/llvm/CodeGen/MachineRegisterInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/MachineRegisterInfo.h?rev=52451&r1=52450&r2=52451&view=diff

==============================================================================
--- llvm/trunk/include/llvm/CodeGen/MachineRegisterInfo.h (original)
+++ llvm/trunk/include/llvm/CodeGen/MachineRegisterInfo.h Wed Jun 18 02:47:55 2008
@@ -90,6 +90,10 @@
   }
   static use_iterator use_end() { return use_iterator(0); }
   
+  /// use_empty - Return true if there are no instructions using the specified
+  /// register.
+  bool use_empty(unsigned RegNo) const { return use_begin(RegNo) == use_end(); }
+
   
   /// replaceRegWith - Replace all instances of FromReg with ToReg in the
   /// machine function.  This is like llvm-level X->replaceAllUsesWith(Y),