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* [Bug c++/13179] New: ICE w/template parameter in catch specification
@ 2003-11-24 18:45 gcc-bugzilla at gcc dot gnu dot org
2003-11-24 18:49 ` [Bug c++/13179] " bangerth at dealii dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gcc-bugzilla at gcc dot gnu dot org @ 2003-11-24 18:45 UTC (permalink / raw)
To: gcc-bugs
gcc crashes compiling the source below:
$ ./cc1plus x.cc
void foo()
x.cc: At global scope:
x.cc:5: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
$
Here's where it's crashing:
Program received signal SIGSEGV, Segmentation fault.
0x08117ebf in import_export_class (ctype=0x400f50d8) at ../../gcc/gcc/cp/decl2.c:1520
1520 if (CLASSTYPE_INTERFACE_KNOWN (ctype))
(gdb) where
#0 0x08117ebf in import_export_class (ctype=0x400f50d8) at ../../gcc/gcc/cp/decl2.c:1520
#1 0x08119484 in import_export_tinfo (decl=0x400f56c0, type=0x400f50d8, is_in_library=false) at ../../gcc/gcc/cp/decl2.c:1753
#2 0x0814a136 in emit_tinfo_decl (decl=0x400f56c0) at ../../gcc/gcc/cp/rtti.c:1453
#3 0x0811b4eb in finish_file () at ../../gcc/gcc/cp/decl2.c:2644
#4 0x0820e2c4 in c_common_parse_file (set_yydebug=0) at ../../gcc/gcc/c-opts.c:1233
#5 0x084e7203 in compile_file () at ../../gcc/gcc/toplev.c:1818
#6 0x084ec300 in do_compile () at ../../gcc/gcc/toplev.c:4602
#7 0x084ec399 in toplev_main (argc=2, argv=0xbfffbc84) at ../../gcc/gcc/toplev.c:4642
#8 0x0821288e in main (argc=2, argv=0xbfffbc84) at ../../gcc/gcc/main.c:35
(gdb) call debug_tree (ctype)
<template_type_parm 0x400f50d8 T VOID
align 8 symtab 0 alias set 0
index 0 level 1 orig_level 1
chain <type_decl 0x400f5144 T>>
It looks like what's happening is that the type used in the catch
specification is getting put onto the unemitted_tinfo_decls list.
This happens when the template definition is read (prior to instantiation),
and thus the type has not been through tsubst.
Then import_export_class gets a tree that it cannot handle.
I was able to work around this problem by patching emit_tinfo_decl()
to reject types that are typenames or template parameter.
I do not believe that this is the correct fix however; i think
it's just hiding the symptom.
Index: rtti.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/cp/rtti.c,v
retrieving revision 1.175
diff -u -p -r1.175 rtti.c
--- rtti.c 27 Sep 2003 16:44:05 -0000 1.175
+++ rtti.c 24 Nov 2003 18:15:54 -0000
@@ -1441,6 +1441,10 @@ emit_tinfo_decl (tree decl)
tree var_desc, var_init;
my_friendly_assert (unemitted_tinfo_decl_p (decl), 20030307);
+
+ if (TREE_CODE(type) == TYPENAME_TYPE ||
+ TREE_CODE(type) == TEMPLATE_TYPE_PARM)
+ return false;
import_export_tinfo (decl, type, in_library);
if (DECL_REALLY_EXTERN (decl) || !DECL_NEEDED_P (decl))
Environment:
System: Linux karma 2.4.19-emp_2419p5a829i #1 Tue Sep 3 17:42:17 EST 2002 i686 i686 i386 GNU/Linux
Architecture: i686
<machine, os, target, libraries (multiple lines)>
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure --prefix=/usr/local/gcc --enable-threads=posix --enable-long-long --enable-languages=c,c++,f77
How-To-Repeat:
Compile the following:
-------------------------------------
template <class T>
void foo()
{
try {}
catch(T e) {}
}
-------------------------------------
------- Additional Comments From snyder at fnal dot gov 2003-11-24 18:45 -------
Fix:
<how to correct or work around the problem, if known (multiple lines)>
--
Summary: ICE w/template parameter in catch specification
Product: gcc
Version: 3.4
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: snyder at fnal dot gov
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13179
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/13179] ICE w/template parameter in catch specification
2003-11-24 18:45 [Bug c++/13179] New: ICE w/template parameter in catch specification gcc-bugzilla at gcc dot gnu dot org
@ 2003-11-24 18:49 ` bangerth at dealii dot org
2003-12-01 1:10 ` [Bug c++/13179] [3.4 Regression] " pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bangerth at dealii dot org @ 2003-11-24 18:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bangerth at dealii dot org 2003-11-24 18:49 -------
Confirmed. A mainline regression.
W.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2003-11-24 18:49:36
date| |
Target Milestone|--- |3.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13179
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/13179] [3.4 Regression] ICE w/template parameter in catch specification
2003-11-24 18:45 [Bug c++/13179] New: ICE w/template parameter in catch specification gcc-bugzilla at gcc dot gnu dot org
2003-11-24 18:49 ` [Bug c++/13179] " bangerth at dealii dot org
@ 2003-12-01 1:10 ` pinskia at gcc dot gnu dot org
2003-12-03 19:19 ` mmitchel at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-12-01 1:10 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2003-12-01 01:10 -------
>From Phil's regression hunter: Search converges between 2003-08-14-trunk (#372) and 2003-08
-15-trunk (#373).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13179
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/13179] [3.4 Regression] ICE w/template parameter in catch specification
2003-11-24 18:45 [Bug c++/13179] New: ICE w/template parameter in catch specification gcc-bugzilla at gcc dot gnu dot org
2003-11-24 18:49 ` [Bug c++/13179] " bangerth at dealii dot org
2003-12-01 1:10 ` [Bug c++/13179] [3.4 Regression] " pinskia at gcc dot gnu dot org
@ 2003-12-03 19:19 ` mmitchel at gcc dot gnu dot org
2003-12-04 5:02 ` cvs-commit at gcc dot gnu dot org
2003-12-04 5:04 ` mmitchel at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2003-12-03 19:19 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From mmitchel at gcc dot gnu dot org 2003-12-03 19:19 -------
Working on a fix.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Last reconfirmed|2003-11-24 18:49:36 |2003-12-03 19:19:42
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13179
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/13179] [3.4 Regression] ICE w/template parameter in catch specification
2003-11-24 18:45 [Bug c++/13179] New: ICE w/template parameter in catch specification gcc-bugzilla at gcc dot gnu dot org
` (2 preceding siblings ...)
2003-12-03 19:19 ` mmitchel at gcc dot gnu dot org
@ 2003-12-04 5:02 ` cvs-commit at gcc dot gnu dot org
2003-12-04 5:04 ` mmitchel at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2003-12-04 5:02 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2003-12-04 05:02 -------
Subject: Bug 13179
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: mmitchel@gcc.gnu.org 2003-12-04 05:02:20
Modified files:
gcc/cp : ChangeLog semantics.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g++.dg/template: eh1.C
Log message:
PR c++/13179
* semantics.c (finish_handler_parms): Do not call eh_type_info for
types used in templates.
PR c++/13179
* g++.dg/template/eh1.C: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3778&r2=1.3779
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/semantics.c.diff?cvsroot=gcc&r1=1.373&r2=1.374
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3224&r2=1.3225
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/eh1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13179
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/13179] [3.4 Regression] ICE w/template parameter in catch specification
2003-11-24 18:45 [Bug c++/13179] New: ICE w/template parameter in catch specification gcc-bugzilla at gcc dot gnu dot org
` (3 preceding siblings ...)
2003-12-04 5:02 ` cvs-commit at gcc dot gnu dot org
@ 2003-12-04 5:04 ` mmitchel at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2003-12-04 5:04 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From mmitchel at gcc dot gnu dot org 2003-12-04 05:04 -------
Fixed in GCC 3.4.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13179
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-12-04 5:04 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-11-24 18:45 [Bug c++/13179] New: ICE w/template parameter in catch specification gcc-bugzilla at gcc dot gnu dot org
2003-11-24 18:49 ` [Bug c++/13179] " bangerth at dealii dot org
2003-12-01 1:10 ` [Bug c++/13179] [3.4 Regression] " pinskia at gcc dot gnu dot org
2003-12-03 19:19 ` mmitchel at gcc dot gnu dot org
2003-12-04 5:02 ` cvs-commit at gcc dot gnu dot org
2003-12-04 5:04 ` mmitchel at gcc dot gnu dot org
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