------- Comment #2 from ubizjak at gmail dot com 2008-10-25 09:46 -------
Confirmed on x86_64-pc-linux-gnu:
Program received signal SIGSEGV, Segmentation fault.
0x00000000004c6e04 in link_block (b=0x7fa2cf6fba20, after=0x7fa2cf6fb840) at
../../gcc-svn/trunk/gcc/cfg.c:153
/home/uros/gcc-svn/trunk/gcc/cfg.c:153:4316:beg:0x4c6e04
Missing separate debuginfos, use: debuginfo-install glibc.x86_64
(gdb) bt
#0 0x00000000004c6e04 in link_block (b=0x7fa2cf6fba20, after=0x7fa2cf6fb840)
at ../../gcc-svn/trunk/gcc/cfg.c:153
#1 0x00000000006e9bc6 in create_bb (h=<value optimized out>, e=<value
optimized out>, after=0x7fa2cf6fb840) at ../../gcc-svn/trunk/gcc/tree-cfg.c:401
#2 0x00000000004cd443 in create_basic_block (head=0x7fa2cf6fba20,
end=0x7fa2cf6fb840, after=0x0) at ../../gcc-svn/trunk/gcc/cfghooks.c:611
#3 0x00000000006ec7c5 in gimple_split_block (bb=0x7fa2cf6fba20,
stmt=0x7fa2cf6fb840) at ../../gcc-svn/trunk/gcc/tree-cfg.c:4839
#4 0x00000000004cd4cf in split_block (bb=0x7fa2cf6fb840, i=0x7fa2cf6fb840) at
../../gcc-svn/trunk/gcc/cfghooks.c:432
#5 0x00000000006f8ba1 in split_bbs_on_noreturn_calls () at
../../gcc-svn/trunk/gcc/tree-cfgcleanup.c:492
#6 0x00000000006fa060 in cleanup_tree_cfg () at
../../gcc-svn/trunk/gcc/tree-cfgcleanup.c:572
/* Link block B to chain after AFTER. */
void
link_block (basic_block b, basic_block after)
{
b->next_bb = after->next_bb;
b->prev_bb = after;
after->next_bb = b;
b->next_bb->prev_bb = b; <<< here
}
--
ubizjak at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|c |middle-end
Ever Confirmed|0 |1
GCC target triplet|i686-pc-linux-gnu |
Last reconfirmed|0000-00-00 00:00:00 |2008-10-25 09:46:53
date| |
Summary|internal compiler error: |[4.4 Regression] internal
|Segmentation fault |compiler error: Segmentation
| |fault
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37913
