https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93046
Bug ID: 93046
Summary: [10 Regression] ICE in cp_gimplify_init_expr
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
g++-10.0.0-alpha20191222 snapshot (r279712) ICEs when compiling the following
testcase, reduced from clang/testsuite/CodeGenCXX/cxx1z-copy-omission.cpp (and
several others) from the clang 9.0.1 test suite:
struct id {
id (int);
operator bool ();
};
id
o9 ()
{
return id (1) ?: id (2);
}
% g++-10.0.0-alpha20191222 -c fxrshtnj.cpp
fxrshtnj.cpp: In function 'id o9()':
fxrshtnj.cpp:9:25: internal compiler error: Segmentation fault
9 | return id (1) ?: id (2);
| ^
0xf529d0 crash_signal
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/toplev.c:328
0x8939d8 cp_gimplify_init_expr
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/cp/cp-gimplify.c:531
0x8939d8 cp_gimplify_expr(tree_node**, gimple**, gimple**)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/cp/cp-gimplify.c:734
0xccb881 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:13475
0xccfdf5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:6814
0xce205d gimplify_cond_expr
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:4232
0xcccdb6 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:13523
0xccfdf5 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:6814
0xcd7815 gimplify_and_add(tree_node*, gimple**)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:486
0xcd7815 gimplify_return_expr
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:1659
0xccd4a9 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:13827
0xce5243 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:6814
0xce5243 gimplify_cleanup_point_expr
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:6556
0xccc7c7 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:13958
0xce47a4 gimplify_stmt(tree_node**, gimple**)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:6814
0xce47a4 gimplify_body(tree_node*, bool)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:14814
0xce4bec gimplify_function_tree(tree_node*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/gimplify.c:14958
0xb350f2 cgraph_node::analyze()
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/cgraphunit.c:669
0xb379ee analyze_functions
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/cgraphunit.c:1212
0xb385e8 symbol_table::finalize_compilation_unit()
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191222/work/gcc-10-20191222/gcc/cgraphunit.c:2958
r279576 seems to be a possible culprit.
