http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59510
Bug ID: 59510
Summary: [4.9 Regression] ICE: in vt_expand_var_loc_chain, at
var-tracking.c:8212 with -O2 -g
--param=large-stack-frame-growth=1
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Created attachment 31441
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31441&action=edit
autoreduced testcase
Compiler output:
$ gcc -O2 -g --param=large-stack-frame-growth=1 testcase.C
/home/smatz/build-205784-lto-fortran-checking-yes-rtl-df/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/stl_iterator_base_types.h:
In function '_OI {anonymous}::copy(_II, _II, _OI) [with _II = char*; _OI =
{anonymous}::ostreambuf_iterator<char>]':
/home/smatz/build-205784-lto-fortran-checking-yes-rtl-df/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/stl_iterator_base_types.h:200:3:
internal compiler error: in vt_expand_var_loc_chain, at var-tracking.c:8212
0xf35d6c vt_expand_var_loc_chain
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8212
0xf35d6c vt_expand_loc_callback
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8408
0x933fd1 cselib_expand_value_rtx_1
/mnt/svn/gcc-trunk/gcc/cselib.c:1684
0x934f0e cselib_expand_value_rtx_cb(rtx_def*, bitmap_head*, int, rtx_def*
(*)(rtx_def*, bitmap_head*, int, void*), void*)
/mnt/svn/gcc-trunk/gcc/cselib.c:1531
0xf3500c vt_expand_loc_callback
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8344
0x9340ca cselib_expand_value_rtx_1
/mnt/svn/gcc-trunk/gcc/cselib.c:1649
0x934f0e cselib_expand_value_rtx_cb(rtx_def*, bitmap_head*, int, rtx_def*
(*)(rtx_def*, bitmap_head*, int, void*), void*)
/mnt/svn/gcc-trunk/gcc/cselib.c:1531
0xf35468 vt_expand_var_loc_chain
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8246
0xf35468 vt_expand_loc_callback
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8408
0x933fd1 cselib_expand_value_rtx_1
/mnt/svn/gcc-trunk/gcc/cselib.c:1684
0x934f0e cselib_expand_value_rtx_cb(rtx_def*, bitmap_head*, int, rtx_def*
(*)(rtx_def*, bitmap_head*, int, void*), void*)
/mnt/svn/gcc-trunk/gcc/cselib.c:1531
0xf29b73 vt_expand_var_loc_chain
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8246
0xf29b73 vt_expand_1pvar
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8521
0xf29b73 emit_note_insn_var_location(variable_def**, emit_note_data_def*)
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8575
0xf3925b traverse_noresize<emit_note_data_def*, emit_note_insn_var_location>
/mnt/svn/gcc-trunk/gcc/hash-table.h:928
0xf3925b traverse<emit_note_data_def*, emit_note_insn_var_location>
/mnt/svn/gcc-trunk/gcc/hash-table.h:950
0xf3925b emit_notes_for_changes
/mnt/svn/gcc-trunk/gcc/var-tracking.c:8937
0xf39f01 emit_notes_in_bb
/mnt/svn/gcc-trunk/gcc/var-tracking.c:9382
0xf39f01 vt_emit_notes
/mnt/svn/gcc-trunk/gcc/var-tracking.c:9431
0xf3b026 variable_tracking_main_1
/mnt/svn/gcc-trunk/gcc/var-tracking.c:10292
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ gcc -v
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-205985-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-205985-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20131214 (experimental) (GCC)
Tested revisions:
r205985 - crash
4.8 r204890 - OK
