Add new optional getRegisterInfo to TargetMachine
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4436 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h
index abe3519..ab668d3 100644
--- a/include/llvm/Target/TargetMachine.h
+++ b/include/llvm/Target/TargetMachine.h
@@ -17,6 +17,7 @@
class MachineFrameInfo;
class MachineCacheInfo;
class MachineOptInfo;
+class MRegisterInfo;
class PassManager;
class Pass;
@@ -66,6 +67,12 @@
virtual const MachineCacheInfo& getCacheInfo() const = 0;
virtual const MachineOptInfo& getOptInfo() const = 0;
+ /// getRegisterInfo - If register information is available, return it. If
+ /// not, return null. This is kept seperate from RegInfo until RegInfo gets
+ /// straightened out.
+ ///
+ virtual const MRegisterInfo* getRegisterInfo() const { return 0; }
+
// Data storage information
//
virtual unsigned findOptimalStorageSize(const Type* ty) const;