Add two static methods to avoid having client code explicitly compare against

FirstVirtualRegister


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11031 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h
index 3217b47..3d67d8c 100644
--- a/include/llvm/Target/MRegisterInfo.h
+++ b/include/llvm/Target/MRegisterInfo.h
@@ -136,6 +136,18 @@ public:
     FirstVirtualRegister = 1024,
   };
 
+  /// isPhysicalRegister - Return true if the specified register number is in
+  /// the physical register namespace.
+  static bool isPhysicalRegister(unsigned Reg) {
+    return Reg < FirstVirtualRegister;
+  }
+
+  /// isVirtualRegister - Return true if the specified register number is in
+  /// the virtual register namespace.
+  static bool isVirtualRegister(unsigned Reg) {
+    return Reg >= FirstVirtualRegister;
+  }
+
   const MRegisterDesc &operator[](unsigned RegNo) const {
     assert(RegNo < NumRegs &&
            "Attempting to access record for invalid register number!");