https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92788
Bug ID: 92788
Summary: [10 Regression] ICE in redirect_eh_edge_1, at
tree-eh.c:2313
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: x86_64-pc-linux-gnu
Created attachment 47413
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47413&action=edit
Testcase
g++-10.0.0-alpha20191201 snapshot (r278886) ICEs when compiling the attached
testcase, reduced from
libstdc++-v3/testsuite/28_regex/algorithms/regex_match/ecma/char/53622.cc, w/
-march=k8 -O3 -fnon-call-exceptions -ftracer:
% x86_64-pc-linux-gnu-g++-10.0.0-alpha20191201 -march=k8 -O3
-fnon-call-exceptions -ftracer -w -c s0uf5lnv.cc
during GIMPLE pass: dom
s0uf5lnv.cc: In copy constructor 'std::vector<_Tp,
_Alloc>::vector(std::vector<_Tp, _Alloc>&) [with _Tp =
std::Trans_NS___cxx11_regex_traits::_RegexMask; _Alloc =
new_allocator<std::Trans_NS___cxx11_regex_traits::_RegexMask>]':
s0uf5lnv.cc:154:5: internal compiler error: in redirect_eh_edge_1, at
tree-eh.c:2313
154 | vector(vector &__x) : _Base(0, _M_get_Tp_allocator()) {
| ^~~~~~
0x73dcdc redirect_eh_edge_1
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-eh.c:2313
0xf979ea redirect_eh_edge(edge_def*, basic_block_def*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-eh.c:2378
0xaee9a0 redirect_edge_and_branch(edge_def*, basic_block_def*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/cfghooks.c:373
0x1125d54 ssa_fix_duplicate_block_edges(redirection_data*, ssa_local_info_t*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-ssa-threadupdate.c:1017
0x11282c9 ssa_fixup_template_block(redirection_data**, ssa_local_info_t*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-ssa-threadupdate.c:1246
0x11282c9 void hash_table<redirection_data, false,
xcallocator>::traverse_noresize<ssa_local_info_t*,
&(ssa_fixup_template_block(redirection_data**,
ssa_local_info_t*))>(ssa_local_info_t*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/hash-table.h:1084
0x11282c9 void hash_table<redirection_data, false,
xcallocator>::traverse<ssa_local_info_t*,
&(ssa_fixup_template_block(redirection_data**,
ssa_local_info_t*))>(ssa_local_info_t*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/hash-table.h:1105
0x11282c9 thread_block_1
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-ssa-threadupdate.c:1503
0x112990e thread_block
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-ssa-threadupdate.c:1540
0x112990e thread_through_all_blocks(bool)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-ssa-threadupdate.c:2652
0x1049eb7 execute
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191201/work/gcc-10-20191201/gcc/tree-ssa-dom.c:775
