* gensupport.c: New file.

	* gensupport.h: New file.
	* Makefile.in (HOST_RTL): Depend on gensupport.
	(gensupport.o) New rule.
	* genattr.c: Use gensupport for reading .md files.
	* genattrtab.c: Ditto.
	* gencodes.c: Ditto.
	* genconfig.c: Ditto.
	* genemit.c: Ditto.
	* genextract.c: Ditto.
	* genflags.c: Ditto.
	* genopinit.c: Ditto.
	* genoutput.c: Ditto.
	* genpeep.c: Ditto.
	* genrecog.c: Ditto.
	* rtl.def (define_insn_and_split): New DEF_RTL_EXPR.
	* md.texi (Insn Splitting): Document define_insn_and_split.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33633 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 13 deletions

diff --git a/gcc/genattr.c b/gcc/genattr.c
index 30160a44379..36a37b1a408 100644
--- a/gcc/genattr.c
+++ b/gcc/genattr.c
@@ -25,6 +25,7 @@ Boston, MA 02111-1307, USA.  */
 #include "rtl.h"
 #include "obstack.h"
 #include "errors.h"
+#include "gensupport.h"
 
 static struct obstack obstack;
 struct obstack *rtl_obstack = &obstack;
@@ -222,8 +223,6 @@ main (argc, argv)
      char **argv;
 {
   rtx desc;
-  FILE *infile;
-  register int c;
   int have_delay = 0;
   int have_annul_true = 0;
   int have_annul_false = 0;
@@ -245,13 +244,8 @@ main (argc, argv)
   if (argc <= 1)
     fatal ("No input file name.");
 
-  infile = fopen (argv[1], "r");
-  if (infile == 0)
-    {
-      perror (argv[1]);
-      return (FATAL_EXIT_CODE);
-    }
-  read_rtx_filename = argv[1];
+  if (init_md_reader (argv[1]) != SUCCESS_EXIT_CODE)
+    return (FATAL_EXIT_CODE);
 
   printf ("/* Generated automatically by the program `genattr'\n\
 from the machine description file `md'.  */\n\n");
@@ -266,12 +260,12 @@ from the machine description file `md'.  */\n\n");
 
   while (1)
     {
-      c = read_skip_spaces (infile);
-      if (c == EOF)
+      int line_no, insn_code_number;
+
+      desc = read_md_rtx (&line_no, &insn_code_number);
+      if (desc == NULL)
 	break;
-      ungetc (c, infile);
 
-      desc = read_rtx (infile);
       if (GET_CODE (desc) == DEFINE_ATTR)
 	gen_attr (desc);