[commit] dwarf2read.c (lookup_signatured_type_at_offset): Delete.

[Doug Evans <dje at google dot com>]

Hi.

lookup_signatured_type_at_offset may have been useful at one point,
but it's no longer necessary as we can just go from the per_cu to the
signatured_type struct.

Committed.

2013-04-01  Doug Evans  <dje@google.com>

	* dwarf2read.c (lookup_signatured_type_at_offset): Delete.
	(process_enumeration_scope): Simplify.

Index: dwarf2read.c
===================================================================
RCS file: /cvs/src/src/gdb/dwarf2read.c,v
retrieving revision 1.772
diff -u -p -r1.772 dwarf2read.c
--- dwarf2read.c	1 Apr 2013 22:36:08 -0000	1.772
+++ dwarf2read.c	1 Apr 2013 23:14:10 -0000
@@ -1602,10 +1602,6 @@ static struct die_info *follow_die_sig (
 					struct attribute *,
 					struct dwarf2_cu **);
 
-static struct signatured_type *lookup_signatured_type_at_offset
-    (struct objfile *objfile,
-     struct dwarf2_section_info *section, sect_offset offset);
-
 static void load_full_type_unit (struct dwarf2_per_cu_data *per_cu);
 
 static void read_signatured_type (struct signatured_type *);
@@ -11809,10 +11805,7 @@ process_enumeration_scope (struct die_in
     {
       struct signatured_type *sig_type;
 
-      sig_type
-	= lookup_signatured_type_at_offset (dwarf2_per_objfile->objfile,
-					    cu->per_cu->section,
-					    cu->per_cu->offset);
+      sig_type = (struct signatured_type *) cu->per_cu;
       gdb_assert (sig_type->type_offset_in_section.sect_off != 0);
       if (sig_type->type_offset_in_section.sect_off != die->offset.sect_off)
 	return;
@@ -17763,34 +17756,6 @@ follow_die_sig (struct die_info *src_die
 	 temp_die.offset.sect_off, src_die->offset.sect_off, objfile->name);
 }
 
-/* Given an offset of a signatured type, return its signatured_type.  */
-
-static struct signatured_type *
-lookup_signatured_type_at_offset (struct objfile *objfile,
-				  struct dwarf2_section_info *section,
-				  sect_offset offset)
-{
-  gdb_byte *info_ptr = section->buffer + offset.sect_off;
-  unsigned int length, initial_length_size;
-  unsigned int sig_offset;
-  struct signatured_type find_entry, *sig_type;
-
-  length = read_initial_length (objfile->obfd, info_ptr, &initial_length_size);
-  sig_offset = (initial_length_size
-		+ 2 /*version*/
-		+ (initial_length_size == 4 ? 4 : 8) /*debug_abbrev_offset*/
-		+ 1 /*address_size*/);
-  find_entry.signature = bfd_get_64 (objfile->obfd, info_ptr + sig_offset);
-  sig_type = htab_find (dwarf2_per_objfile->signatured_types, &find_entry);
-
-  /* This is only used to lookup previously recorded types.
-     If we didn't find it, it's our bug.  */
-  gdb_assert (sig_type != NULL);
-  gdb_assert (offset.sect_off == sig_type->per_cu.offset.sect_off);
-
-  return sig_type;
-}
-
 /* Load the DIEs associated with type unit PER_CU into memory.  */
 
 static void