2004-11-26 Paolo Carlini <pcarlini@suse.de>

[pf3gnuchains/gcc-fork.git] / gcc / toplev.h

diff --git a/gcc/toplev.h b/gcc/toplev.h
index 6f6cad3..719cb4c 100644 (file)
--- a/gcc/toplev.h
+++ b/gcc/toplev.h
@@ -73,12 +73,10 @@ extern void pedwarn (const char *, ...) ATTRIBUTE_GCC_FE_DIAG(1,2);
 extern void sorry (const char *, ...) ATTRIBUTE_GCC_FE_DIAG(1,2);
 extern void inform (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
 
-extern void rest_of_decl_compilation (tree, const char *, int, int);
+extern void rest_of_decl_compilation (tree, int, int);
 extern void rest_of_type_compilation (tree, int);
-extern void rest_of_compilation (void);
-extern void tree_rest_of_compilation (tree, bool);
+extern void tree_rest_of_compilation (tree);
 extern void init_tree_optimization_passes (void);
-extern void init_optimization_passes (void);
 extern void finish_optimization_passes (void);
 extern bool enable_rtl_dump_file (int);
 
@@ -116,6 +114,11 @@ extern bool exit_after_options;
 
 extern int target_flags_explicit;
 
+/* True if the user has tagged the function with the 'section'
+   attribute.  */
+
+extern bool user_defined_section_attribute;
+
 /* See toplev.c.  */
 extern int flag_loop_optimize;
 extern int flag_crossjumping;
@@ -155,38 +158,37 @@ extern void decode_d_option               (const char *);
 /* Return true iff flags are set as if -ffast-math.  */
 extern bool fast_math_flags_set_p      (void);
 
-/* The following functions accept a wide integer argument.  Rather
-   than having to cast on every function call, we use a macro instead.  */
-
-#ifndef exact_log2
-#define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N))
-
-#if (__GNUC__ * 1000 + __GNUC_MINOR__) >= 3004
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
-#define FL2T__ HOST_WIDE_INT
-#define FL2T_CLZ__ __builtin_clzll
-#else
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
-#define FL2T__ HOST_WIDE_INT
-#define FL2T_CLZ__ __builtin_clzl
-#else
-#define FL2T__ int
-#define FL2T_CLZ__ __builtin_clz
-#endif
-#endif
-static inline int floor_log2(FL2T__ n)
+/* Return log2, or -1 if not exact.  */
+extern int exact_log2                  (unsigned HOST_WIDE_INT);
+
+/* Return floor of log2, with -1 for zero.  */
+extern int floor_log2                  (unsigned HOST_WIDE_INT);
+
+/* Inline versions of the above for speed.  */
+#if GCC_VERSION >= 3004
+# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+#  define CLZ_HWI __builtin_clzl
+#  define CTZ_HWI __builtin_ctzl
+# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
+#  define CLZ_HWI __builtin_clzll
+#  define CTZ_HWI __builtin_ctzll
+# else
+#  define CLZ_HWI __builtin_clz
+#  define CTZ_HWI __builtin_ctz
+# endif
+
+extern inline int
+floor_log2 (unsigned HOST_WIDE_INT x)
 {
-  if (n)
-    return (sizeof(FL2T__)*8-1) - (int)FL2T_CLZ__(n);
-  return -1;
+  return x ? HOST_BITS_PER_WIDE_INT - 1 - (int) CLZ_HWI (x) : -1;
 }
-#else
-#define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N))
-#endif
 
-#endif
-extern int exact_log2_wide             (unsigned HOST_WIDE_INT);
-extern int floor_log2_wide             (unsigned HOST_WIDE_INT);
+extern inline int
+exact_log2 (unsigned HOST_WIDE_INT x)
+{
+  return x == (x & -x) && x ? (int) CTZ_HWI (x) : -1;
+}
+#endif /* GCC_VERSION >= 3004 */
 
 /* Functions used to get and set GCC's notion of in what directory
    compilation was started.  */