revert: opts.c (decode_options): Don't use DEFAULT_SHORT_ENUMS.

	Revert:
	2004-02-19  Kazu Hirata  <kazu@cs.umass.edu>
	* opts.c (decode_options): Don't use DEFAULT_SHORT_ENUMS.
	* system.h (DEFAULT_SHORT_ENUMS): Poison.
	* config/cris/cris.h: Remove a comment about
	DEFAULT_SHORT_ENUMS.
	* config/ip2k/ip2k.h: Likewise.
	* doc/tm.texi (DEFAULT_SHORT_ENUMS): Remove.

From-SVN: r78168

gcc/ChangeLog

+2004-02-20  Kazu Hirata  <kazu@cs.umass.edu>
+
+	Revert:
+	2004-02-19  Kazu Hirata  <kazu@cs.umass.edu>
+	* opts.c (decode_options): Don't use DEFAULT_SHORT_ENUMS.
+	* system.h (DEFAULT_SHORT_ENUMS): Poison.
+	* config/cris/cris.h: Remove a comment about
+	DEFAULT_SHORT_ENUMS.
+	* config/ip2k/ip2k.h: Likewise.
+	* doc/tm.texi (DEFAULT_SHORT_ENUMS): Remove.
+
 2004-02-20  Mohan Embar  <gnustuff@thisiscool.com>
 	    Tom Tromey  <tromey@redhat.com>
 

gcc/config/cris/cris.h

@@ -567,6 +567,8 @@ extern int target_flags;
 /* For compatibility and historical reasons, a char should be signed.  */
 #define DEFAULT_SIGNED_CHAR 1
 
+/* No DEFAULT_SHORT_ENUMS, please.  */
+
 /* Note that WCHAR_TYPE_SIZE is used in cexp.y,
    where TARGET_SHORT is not available.  */
 #undef WCHAR_TYPE

gcc/config/ip2k/ip2k.h

@@ -108,6 +108,12 @@ extern int target_flags;
 
 #define DEFAULT_SIGNED_CHAR 1
 
+/* #define DEFAULT_SHORT_ENUMS	1
+   This was the default for the IP2k but gcc has a bug (as of 17th May
+   2001) in the way that library calls to the memory checker functions
+   are issues that screws things up if an enum is not equivalent to
+   an int.  */
+
 #define SIZE_TYPE "unsigned int"
 
 #define PTRDIFF_TYPE "int"

gcc/doc/tm.texi

@@ -1605,6 +1605,15 @@ always override this default with the options @option{-fsigned-char}
 and @option{-funsigned-char}.
 @end defmac
 
+@defmac DEFAULT_SHORT_ENUMS
+A C expression to determine whether to give an @code{enum} type
+only as many bytes as it takes to represent the range of possible values
+of that type.  A nonzero value means to do that; a zero value means all
+@code{enum} types should be allocated like @code{int}.
+
+If you don't define the macro, the default is 0.
+@end defmac
+
 @defmac SIZE_TYPE
 A C expression for a string describing the name of the data type to use
 for size values.  The typedef name @code{size_t} is defined using the

gcc/opts.c

@@ -594,6 +594,10 @@ decode_options (unsigned int argc, const char **argv)
 
   /* Initialize whether `char' is signed.  */
   flag_signed_char = DEFAULT_SIGNED_CHAR;
+#ifdef DEFAULT_SHORT_ENUMS
+  /* Initialize how much space enums occupy, by default.  */
+  flag_short_enums = DEFAULT_SHORT_ENUMS;
+#endif
 
   /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can
      modify it.  */

gcc/system.h

@@ -636,8 +636,7 @@ typedef char _Bool;
 	PROMOTED_MODE EXPAND_BUILTIN_VA_END				   \
 	LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE	   \
 	GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE	   \
-	MAX_WCHAR_TYPE_SIZE GCOV_TYPE_SIZE SHARED_SECTION_ASM_OP	   \
-	DEFAULT_SHORT_ENUMS
+	MAX_WCHAR_TYPE_SIZE GCOV_TYPE_SIZE SHARED_SECTION_ASM_OP
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\