md.texi: Document the "unspec" and "unspecv" enum names.

gcc/
	* doc/md.texi: Document the "unspec" and "unspecv" enum names.
	* Makefile.in (OBJS-common): Include insn-enums.o.
	(insn-enums.o): New rule.
	(simple_generated_c): Add insn-enums.c.
	(build/genenums.o): New rule.
	(genprogmd): Add "enums".
	* genconstants.c (print_enum_type): Declare a C string array
	for each enum.
	* genenums.c: New file.
	* print-rtl.c (print_rtx): If defined, use the "unspecv" enum
	for UNSPEC_VOLATILE.  If defined, use the "unspec" enum for both
	UNSPEC and (as a fallback) for UNSPEC_VOLATILE.

From-SVN: r160582

1 files changed, 66 insertions, 0 deletions

diff --git a/gcc/genenums.c b/gcc/genenums.c
new file mode 100644
index 00000000000..8cb48360f62
--- /dev/null
+++ b/gcc/genenums.c
@@ -0,0 +1,66 @@
+/* Generate from machine description the strings for each enum.
+   Copyright (C) 2010  Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "bconfig.h"
+#include "system.h"
+#include "coretypes.h"
+#include "errors.h"
+#include "read-md.h"
+
+/* Called via traverse_enum_types.  Emit an enum definition for
+   enum_type *SLOT.  */
+
+static int
+print_enum_type (void **slot, void *info ATTRIBUTE_UNUSED)
+{
+  struct enum_type *def;
+  struct enum_value *value;
+
+  def = (struct enum_type *) *slot;
+  printf ("\nconst char *const %s_strings[] = {", def->name);
+  for (value = def->values; value; value = value->next)
+    {
+      printf ("\n  \"%s\"", value->def->name);
+      if (value->next)
+	putc (',', stdout);
+    }
+  printf ("\n};\n");
+  return 1;
+}
+
+int
+main (int argc, char **argv)
+{
+  progname = "genenums";
+
+  if (!read_md_files (argc, argv, NULL, NULL))
+    return (FATAL_EXIT_CODE);
+
+  puts ("/* Generated automatically by the program `genenums'");
+  puts ("   from the machine description file.  */\n");
+  puts ("#include \"config.h\"\n");
+  puts ("#include \"system.h\"\n");
+
+  traverse_enum_types (print_enum_type, 0);
+
+  if (ferror (stdout) || fflush (stdout) || fclose (stdout))
+    return FATAL_EXIT_CODE;
+
+  return SUCCESS_EXIT_CODE;
+}