https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96841
Bug ID: 96841
Summary: [11 Regression] ICE: tree check: expected integer_cst,
have nop_expr in to_wide, at tree.h:5904
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-11.0.0-alpha20200823 snapshot (g:87c753ac241f25d222d46ba1ac66ceba89d6a200)
ICEs when compiling the following testcase w/ -O1 -fanalyzer:
int
l8 (void);
__SIZE_TYPE__
malloc (__SIZE_TYPE__);
void
th (int *);
void
bv (__SIZE_TYPE__ ny)
{
int ***mf;
while (l8 ())
{
*mf = 0;
(*mf)[ny] = (int *) malloc (sizeof (int));
th ((*mf)[ny]);
}
}
% gcc-11.0.0 -O1 -fanalyzer -w -c eswf7if4.c
during IPA pass: analyzer
eswf7if4.c:18:27: internal compiler error: tree check: expected integer_cst,
have nop_expr in to_wide, at tree.h:5904
18 | (*mf)[ny] = (int *) malloc (sizeof (int));
| ^~~~~~~~~~~~~~~~~~~~~
0x6feeda tree_check_failed(tree_node const*, char const*, int, char const*,
...)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/tree.c:9714
0x5ef958 tree_check(tree_node const*, char const*, int, char const*, tree_code)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/tree.h:3551
0x5ef958 wi::to_wide(tree_node const*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/tree.h:5904
0x5f0070 wi::to_wide(tree_node const*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/tree.h:3418
0x5f0070 pp_c_integer_constant(c_pretty_printer*, tree_node*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/c-family/c-pretty-print.c:940
0x89bb09 c_pretty_printer::unary_expression(tree_node*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/c-family/c-pretty-print.c:1801
0x80284d c_tree_printer
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/c/c-objc-common.c:317
0x80284d c_tree_printer
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/c/c-objc-common.c:254
0x18a4ef5 pp_format(pretty_printer*, text_info*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/pretty-print.c:1475
0x185826b ana::evdesc::event_desc::formatted_print(char const*, ...) const
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/pending-diagnostic.cc:63
0x1845f24 ana::warning_event::get_desc(bool) const
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/checker-path.cc:870
0x1845bc2 ana::checker_event::prepare_for_emission(ana::checker_path*,
ana::pending_diagnostic*, diagnostic_event_id_t)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/checker-path.cc:144
0x18556d1 ana::checker_path::prepare_for_emission(ana::pending_diagnostic*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/checker-path.h:498
0x18556d1 ana::diagnostic_manager::emit_saved_diagnostic(ana::exploded_graph
const&, ana::saved_diagnostic const&, ana::exploded_path const&, gimple const*,
int)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/diagnostic-manager.cc:568
0x1856fef ana::dedupe_winners::emit_best(ana::diagnostic_manager*,
ana::exploded_graph const&)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/diagnostic-manager.cc:469
0x1855a9a ana::diagnostic_manager::emit_saved_diagnostics(ana::exploded_graph
const&)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/diagnostic-manager.cc:522
0x10fa2a4 ana::impl_run_checkers(ana::logger*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/engine.cc:4121
0x10faeac ana::run_checkers()
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/engine.cc:4175
0x10ef828 execute
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20200823/work/gcc-11-20200823/gcc/analyzer/analyzer-pass.cc:84
