------- Comment #2 from rguenth at gcc dot gnu dot org 2009-06-08 15:50 -------
#7 0x00000000004fbcf6 in start_function (declspecs=0x7fffffffdbb0,
declarator=0x18717e0, attrs=0x0) at ../../../src/trunk/gcc/cp/decl.c:11884
11884 decl1 = grokdeclarator (declarator, declspecs, FUNCDEF, 1, &attrs);
(gdb) down
#6 0x00000000004e927b in grokdeclarator (declarator=0x18716a0,
declspecs=0x7fffffffdbb0, decl_context=NORMAL, initialized=1,
attrlist=0x7fffffffd9d8) at ../../../src/trunk/gcc/cp/decl.c:9403
9403 decl = grokfndecl (ctype, type, original_name, parms,
unqualified_id,
(gdb)
#5 0x00000000004deeac in grokfndecl (ctype=0x7ffff5347780,
type=0x7ffff51adf00, declarator=0x7ffff6964a80, parms=0x7ffff519bcf0,
orig_declarator=0x7ffff6964a80, virtualp=0, flags=NO_SPECIAL, quals=0,
raises=0x0, check=1, friendp=0, publicp=1, inlinep=0, sfk=sfk_none,
funcdef_flag=1 '\1', template_count=0, in_namespace=0x0,
attrlist=0x7fffffffd9d8, location=11072845)
at ../../../src/trunk/gcc/cp/decl.c:6867
6867 ok = duplicate_decls (decl, old_decl, friendp);
#4 0x00000000004c117f in duplicate_decls (newdecl=0x7ffff51a0300,
olddecl=0x7ffff5135900, newdecl_is_friend=0 '\0')
at ../../../src/trunk/gcc/cp/decl.c:1694
1694 newtype = merge_types (TREE_TYPE (newdecl), TREE_TYPE (olddecl));
(gdb)
#3 0x0000000000624c30 in merge_types (t1=0x7ffff51add80, t2=0x7ffff53b1b40)
at ../../../src/trunk/gcc/cp/typeck.c:764
764 t3 = merge_types (t1, t2);
(gdb)
#2 0x000000000062454f in merge_types (t1=0x7ffff51add80, t2=0x7ffff53b1b40)
at ../../../src/trunk/gcc/cp/typeck.c:716
716 tree valtype = merge_types (TREE_TYPE (t1), TREE_TYPE (t2));
(gdb)
#1 0x0000000000623867 in merge_types (t1=0x7ffff5187c00, t2=0x7ffff53b1a80)
at ../../../src/trunk/gcc/cp/typeck.c:629
629 if (original_type (t1) == original_type (t2))
(gdb)
#0 0x000000000062045d in original_type (t=0x7ffff53b1480)
at ../../../src/trunk/gcc/cp/typeck.c:238
238 && TYPE_NAME (t) != NULL_TREE)
(gdb) finish
Run till exit from #0 0x000000000062045d in original_type (t=0x7ffff53b1480)
at ../../../src/trunk/gcc/cp/typeck.c:238
and hangs...
233 static tree
234 original_type (tree t)
235 {
236 int quals = cp_type_quals (t);
237 while (t != error_mark_node
238 && TYPE_NAME (t) != NULL_TREE)
239 {
240 tree x = TYPE_NAME (t);
241 if (TREE_CODE (x) != TYPE_DECL)
242 break;
(gdb) l
243 x = DECL_ORIGINAL_TYPE (x);
244 if (x == NULL_TREE)
245 break;
246 t = x;
247 }
doesn't finish if DECL_ORIGINAL_TYPE (x) is the same as t.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Priority|P3 |P1
Last reconfirmed|0000-00-00 00:00:00 |2009-06-08 15:50:18
date| |
Summary|compiler hang for C++ code |[4.5 Regression] compiler
| |hang for C++ code
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40357
