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From: "shaohua.li at inf dot ethz.ch" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/107246] New: gcc trunk crash in verify_gimple_in_cfg
Date: Thu, 13 Oct 2022 09:10:15 +0000 [thread overview]
Message-ID: <bug-107246-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107246
Bug ID: 107246
Summary: gcc trunk crash in verify_gimple_in_cfg
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: shaohua.li at inf dot ethz.ch
Target Milestone: ---
% gcc-tk -v
Using built-in specs.
COLLECT_GCC=gcc-tk
COLLECT_LTO_WRAPPER=/zdata/shaoli/compilers/ccbuilder-compilers/gcc-7c059880fca175589efc8e06ef458020a005658d/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --disable-multilib --disable-bootstrap
--enable-languages=c,c++
--prefix=/zdata/shaoli/compilers/ccbuilder-compilers/gcc-7c059880fca175589efc8e06ef458020a005658d
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 13.0.0 20221013 (experimental) (GCC)
%
% gcc-tk -w -O0 a.c
%
% gcc-tk -w -O3 a.c
a.c: In function ‘e’:
a.c:8:1: error: invalid position or size operand to ‘bit_field_ref’
8 | e() {
| ^
_ifc__16 = BIT_FIELD_REF <_ifc__15, 12, 0xffffffffffffffffffffffffffffffc0>;
during GIMPLE pass: ifcvt
a.c:8:1: internal compiler error: verify_gimple failed
0x205825e internal_error(char const*, ...)
???:0
0x10890f1 verify_gimple_in_cfg(function*, bool)
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
%
% cat a.c
struct {
long a;
signed : 9;
signed : 30;
unsigned b : 12
} c;
d;
e() {
for (; d;)
f(c.b);
}
%
Compiler explorer: https://godbolt.org/z/8aGhfE5PM
next reply other threads:[~2022-10-13 9:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-13 9:10 shaohua.li at inf dot ethz.ch [this message]
2022-10-13 9:15 ` [Bug c/107246] " marxin at gcc dot gnu.org
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