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[Bug c++/16205] New: 3.5: ICE with -Wall on no-throw specifier
- From: "gcc-bugzilla at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Jun 2004 19:30:24 -0000
- Subject: [Bug c++/16205] New: 3.5: ICE with -Wall on no-throw specifier
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
g++ segfaults on the example below if -Wall is used:
$ ./cc1plus -quiet -Wall x.cc
x.cc: In function `void t_test1(C*)':
x.cc:8: 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.
0x0815480b in warn_for_collisions_1 (written=0x400f5cb0, writer=0x40008240,
list=0x86927b0, only_writes=0) at /home/sss/gcc/gcc/gcc/c-common.c:1344
1344 IDENTIFIER_POINTER (DECL_NAME (list->expr)));
(gdb) where
#0 0x0815480b in warn_for_collisions_1 (written=0x400f5cb0,
writer=0x40008240, list=0x86927b0, only_writes=0)
at /home/sss/gcc/gcc/gcc/c-common.c:1344
#1 0x081548b0 in warn_for_collisions (list=0x8692918)
at /home/sss/gcc/gcc/gcc/c-common.c:1361
#2 0x08155641 in verify_sequence_points (expr=0x40083604)
at /home/sss/gcc/gcc/gcc/c-common.c:1606
#3 0x0812224f in finish_expr_stmt (expr=0x40083604)
at /home/sss/gcc/gcc/gcc/cp/semantics.c:497
...
It looks like this is more fallout from Richard's recent changes.
Environment:
System: Linux karma 2.6.7 #16 Tue Jun 22 21:52:28 EDT 2004 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: /home/sss/gcc/gcc/configure --prefix=/usr/local/gcc --enable-threads=posix --enable-long-long --enable-languages=c,c++,f95
How-To-Repeat:
Compile with -Wall:
----------------------------------
struct C
{
~C() throw();
};
void t_test1 (C* mapping)
{
delete [] mapping;
}
----------------------------------
------- Additional Comments From snyder at fnal dot gov 2004-06-25 19:30 -------
Fix:
<how to correct or work around the problem, if known (multiple lines)>
--
Summary: 3.5: ICE with -Wall on no-throw specifier
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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=16205