Refactor test suit endianness pre-processor code. More style and readability fixes, start labling endif's

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@78234 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 67 deletions

diff --git a/test/Unit/int_lib.h b/test/Unit/int_lib.h
index bee74592..bc8c98e7 100644
--- a/test/Unit/int_lib.h
+++ b/test/Unit/int_lib.h
@@ -1,70 +1,31 @@
-//===-- int_lib.h - configuration header for libgcc replacement -----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file is a configuration header for libgcc replacement.
-// This file is not part of the interface of this library.
-//
-//===----------------------------------------------------------------------===//
+/* ===-- int_lib.h - configuration header for libgcc replacement -----------===
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file is a configuration header for libgcc replacement.
+ * This file is not part of the interface of this library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
 
 #ifndef INT_LIB_H
 #define INT_LIB_H
 
-// Assumption:  signed integral is 2's complement
-// Assumption:  right shift of signed negative is arithmetic shift
+/* Assumption:  signed integral is 2's complement */
+/* Assumption:  right shift of signed negative is arithmetic shift */
 
 #include <limits.h>
+#include "endianness.h"
+#include <math.h>
 
-// TODO: Improve this to minimal pre-processor hackish'ness.
-#if defined (__SVR4) && defined (__sun)
-// config.h build via CMake.
-//#include <config.h>
-
-// Solaris header for endian and byte swap
-//#if defined HAVE_SYS_BYTEORDER_H
-#include <sys/byteorder.h>
-
-// Solaris defines endian by setting _LITTLE_ENDIAN or _BIG_ENDIAN
-#ifdef _BIG_ENDIAN
-# define IS_BIG_ENDIAN
-#endif
-#ifdef _LITTLE_ENDIAN
-# define IS_LITTLE_ENDIAN
-#endif
-
-#ifdef IS_BIG_ENDIAN
-#define __BIG_ENDIAN__ 1
-#define __LITTLE_ENDIAN__ 0
-#endif
-#ifdef IS_LITTLE_ENDIAN
-#define __BIG_ENDIAN__ 0
-#define __LITTLE_ENDIAN__ 1
-#endif
-
-#endif //End of Solaris ifdef.
-
-#ifdef __LITTLE_ENDIAN__
-#if __LITTLE_ENDIAN__
-#define _YUGA_LITTLE_ENDIAN 1
-#define _YUGA_BIG_ENDIAN    0
-#endif
-#endif
-
-#ifdef __BIG_ENDIAN__
-#if __BIG_ENDIAN__
-#define _YUGA_LITTLE_ENDIAN 0
-#define _YUGA_BIG_ENDIAN    1
-#endif
-#endif
-
-#if !defined(_YUGA_LITTLE_ENDIAN) || !defined(_YUGA_BIG_ENDIAN)
-#error unable to determine endian
-#endif
+#if !defined(INFINITY) && defined(HUGE_VAL)
+#define INFINITY HUGE_VAL
+#endif /* INFINITY */
 
 typedef      int si_int;
 typedef unsigned su_int;
@@ -83,7 +44,7 @@ typedef union
 #else
         si_int high;
         su_int low;
-#endif
+#endif /* _YUGA_LITTLE_ENDIAN */
     };
 } dwords;
 
@@ -98,7 +59,7 @@ typedef union
 #else
         su_int high;
         su_int low;
-#endif
+#endif /* _YUGA_LITTLE_ENDIAN */
     };
 } udwords;
 
@@ -118,7 +79,7 @@ typedef union
 #else
         di_int high;
         du_int low;
-#endif
+#endif /* _YUGA_LITTLE_ENDIAN */
     };
 } twords;
 
@@ -133,7 +94,7 @@ typedef union
 #else
         du_int high;
         du_int low;
-#endif
+#endif /* _YUGA_LITTLE_ENDIAN */
     };
 } utwords;
 
@@ -157,7 +118,7 @@ make_tu(du_int h, du_int l)
     return r.all;
 }
 
-#endif
+#endif /* __x86_64 */
 
 typedef union
 {
@@ -179,7 +140,7 @@ typedef struct
 #else
     udwords high;
     udwords low;
-#endif
+#endif /* _YUGA_LITTLE_ENDIAN */
 } uqwords;
 
 typedef union
@@ -188,4 +149,4 @@ typedef union
     long double f;
 } long_double_bits;
 
-#endif
+#endif /* INT_LIB_H */