Added status flags register: EFLAGS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41862 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86RegisterInfo.td b/lib/Target/X86/X86RegisterInfo.td
index c40dcb9..0d20b59 100644
--- a/lib/Target/X86/X86RegisterInfo.td
+++ b/lib/Target/X86/X86RegisterInfo.td
@@ -161,6 +161,9 @@
   def ST5 : Register<"ST(5)">, DwarfRegNum<16>;
   def ST6 : Register<"ST(6)">, DwarfRegNum<17>;
   def ST7 : Register<"ST(7)">, DwarfRegNum<18>; 
+
+  // Status flags register
+  def EFLAGS : Register<"EFLAGS">;
 }
 
 
@@ -516,3 +519,6 @@
     }
   }];
 }
+
+// Status flags registers.
+def CCR : RegisterClass<"X86", [i32], 32, [EFLAGS]>;