http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58627
Bug ID: 58627
Summary: [4.9 Regression] crash during compilation of boost
testsuite
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: markus at trippelsdorf dot de
Crash happened during compilation of the boost testsuite.
It's hard to reduce the testcase, because it appears to be a bug in the
garbage-collector.
[With --enable-checking=release]
% g++ -O0 -std=c++11 -c test.ii
test.ii: In member function ‘boost::chrono::duration<Rep, Period>&
boost::chrono::duration<Rep, Period>::operator--() [with Rep = double; Period =
boost::ratio<1l>]’:
test.ii:3207:286: internal compiler error: Segmentation fault
[gcc-4.8.1 is fine]
% /usr/x86_64-pc-linux-gnu/gcc-bin/4.8.1/g++ -O2 -std=c++11 -c test.i
%
[Backtrace with --enable-checking]
% gdb --args /var/tmp/gcc_test/usr/local/bin/g++ -w -O0 -std=c++11
-Wfatal-errors -c test.ii -pipe -o /dev/null
Reading symbols from /var/tmp/gcc_test/usr/local/bin/g++...done.
(gdb) run
Starting program: /var/tmp/gcc_test/usr/local/bin/g++ -w -O0 -std=c++11
-Wfatal-errors -c test.ii -pipe -o /dev/null
[New process 20470]
process 20470 is executing new program:
/var/tmp/gcc_test/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1plus
Program received signal SIGSEGV, Segmentation fault.
[Switching to process 20470]
0x0000000000c8e9f8 in tree_class_check_failed (node=<optimized out>,
cl=<optimized out>, file=0xff512d "../../gcc/gcc/c-family/c-common.h",
line=1063,
function=0xff514f "c_tree_chain_next") at ../../gcc/gcc/tree.c:9223
9223 ../../gcc/gcc/tree.c: No such file or directory.
(gdb) bt
#0 0x0000000000c8e9f8 in tree_class_check_failed (node=<optimized out>,
cl=<optimized out>, file=0xff512d "../../gcc/gcc/c-family/c-common.h",
line=1063,
function=0xff514f "c_tree_chain_next") at ../../gcc/gcc/tree.c:9223
#1 0x00000000006807f1 in tree_class_check (__class=<optimized out>,
__f=<optimized out>, __l=<optimized out>, __g=<optimized out>, __t=<optimized
out>,
__class=<optimized out>, __f=<optimized out>, __l=<optimized out>,
__g=<optimized out>) at ../../gcc/gcc/tree.h:2732
#2 c_tree_chain_next (t=<optimized out>) at
../../gcc/gcc/c-family/c-common.h:1063
#3 gt_ggc_mx_lang_tree_node (x_p=<optimized out>) at ./gt-cp-tree.h:158
#4 0x000000000067f79a in gt_ggc_mx_lang_tree_node (x_p=<optimized out>) at
./gt-cp-tree.h:706
#5 0x0000000000680ba3 in gt_ggc_mx_tinst_level (x_p=<optimized out>) at
./gt-cp-tree.h:124
#6 0x000000000057b363 in gt_ggc_mx_pending_template (x_p=<optimized out>) at
./gt-cp-pt.h:44
#7 0x00000000008dfa6b in ggc_mark_root_tab (rt=<optimized out>) at
../../gcc/gcc/ggc-common.c:133
#8 ggc_mark_roots () at ../../gcc/gcc/ggc-common.c:152
#9 0x000000000072d91b in ggc_collect () at ../../gcc/gcc/ggc-page.c:2077
#10 0x000000000079f9c3 in cgraph_finalize_function (decl=<optimized out>,
no_collect=<optimized out>) at ../../gcc/gcc/cgraphunit.c:456
#11 0x000000000065c3fc in expand_or_defer_fn (fn=0x7fffeeb57500) at
../../gcc/gcc/cp/semantics.c:3949
#12 0x0000000000574935 in instantiate_decl (d=0x7fffeeb57500, defer_ok=<error
reading variable: Cannot access memory at address 0x0>,
expl_inst_class_mem_p=<optimized out>)
at ../../gcc/gcc/cp/pt.c:19406
#13 0x0000000000577738 in instantiate_pending_templates (retries=<optimized
out>) at ../../gcc/gcc/cp/pt.c:19493
#14 0x00000000005b9454 in cp_write_global_declarations () at
../../gcc/gcc/cp/decl2.c:4065
#15 0x0000000000aa2196 in compile_file () at ../../gcc/gcc/toplev.c:560
#16 0x0000000000aa1f67 in do_compile () at ../../gcc/gcc/toplev.c:1893
#17 toplev_main (argc=16, argv=0x7fffffffe028) at ../../gcc/gcc/toplev.c:1969
#18 0x00007ffff74d3a6e in __libc_start_main () from /lib/libc.so.6
#19 0x00000000004e090d in _start ()
