[llvm] r227621 - Add a similar templated cast for getSubtarget off of the MachineFunction

[Eric Christopher]

Author: echristo
Date: Fri Jan 30 16:02:19 2015
New Revision: 227621

URL: http://llvm.org/viewvc/llvm-project?rev=227621&view=rev
Log:
Add a similar templated cast for getSubtarget off of the MachineFunction
to save typing a lot of static_casts.

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

Modified: llvm/trunk/include/llvm/CodeGen/MachineFunction.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/MachineFunction.h?rev=227621&r1=227620&r2=227621&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/MachineFunction.h (original)
+++ llvm/trunk/include/llvm/CodeGen/MachineFunction.h Fri Jan 30 16:02:19 2015
@@ -176,6 +176,13 @@ public:
   const TargetSubtargetInfo &getSubtarget() const { return *STI; }
   void setSubtarget(const TargetSubtargetInfo *ST) { STI = ST; }
 
+  /// getSubtarget - This method returns a pointer to the specified type of
+  /// TargetSubtargetInfo.  In debug builds, it verifies that the object being
+  /// returned is of the correct type.
+  template<typename STC> const STC &getSubtarget() const {
+    return *static_cast<const STC *>(STI);
+  }
+
   /// getRegInfo - Return information about the registers currently in use.
   ///
   MachineRegisterInfo &getRegInfo() { return *RegInfo; }