Move getX86RegNum into X86RegisterInfo and use it

[oota-llvm.git] / lib / Target / X86 / X86RegisterInfo.h

diff --git a/lib/Target/X86/X86RegisterInfo.h b/lib/Target/X86/X86RegisterInfo.h
index cdec55f3297dbb0f508da9acc2e31d7a0c525cbd..bcfba246adfa3d75e2a51919e92854e1341925b9 100644 (file)
--- a/lib/Target/X86/X86RegisterInfo.h
+++ b/lib/Target/X86/X86RegisterInfo.h
@@ -22,6 +22,14 @@ namespace llvm {
   class TargetInstrInfo;
   class X86TargetMachine;
 
+/// N86 namespace - Native X86 register numbers
+///
+namespace N86 {
+  enum {
+    EAX = 0, ECX = 1, EDX = 2, EBX = 3, ESP = 4, EBP = 5, ESI = 6, EDI = 7
+  };
+}
+
 class X86RegisterInfo : public X86GenRegisterInfo {
 public:
   X86TargetMachine &TM;
@@ -43,6 +51,10 @@ private:
 public:
   X86RegisterInfo(X86TargetMachine &tm, const TargetInstrInfo &tii);
 
+  /// getX86RegNum - Returns the native X86 register number for the given LLVM
+  /// register identifier.
+  unsigned getX86RegNum(unsigned RegNo);
+
   /// Code Generation virtual methods...
   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MI,