https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97650
Bug ID: 97650
Summary: ICE: tree check: expected ssa_name, have addr_expr in
vect_get_and_check_slp_defs, at tree-vect-slp.c:533
with "-Os -ftree-slp-vectorize
-fallow-store-data-races"
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: suochenyao at 163 dot com
Target Milestone: ---
*******************************************************************************
OS and Platform:
CentOS Linux release 7.8.2003 (Core), x86_64 GNU/Linux
*******************************************************************************
Program:
short a=0;
unsigned long *volatile *volatile *volatile *b;
unsigned long *volatile *volatile *volatile **c[7];
void d() {
short e=0;
for (; a;) {
e = 0;
for (; e < 7; e++)
c[e] = &b;
}
}
int main() { return 0; }
*******************************************************************************
gcc version:
$ gcc -v
Using built-in specs.
COLLECT_GCC=/home/suocy/bin/gcc-dev/bin/gcc
COLLECT_LTO_WRAPPER=/home/suocy/bin/gcc-dev/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --prefix=/home/suocy/bin/gcc-dev/
--disable-multilib --enable-languages=c,c++
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20201030 (experimental) (GCC)
*******************************************************************************
Command Lines:
$ gcc -Wall -Wextra -fno-strict-aliasing -fwrapv -Os -ftree-slp-vectorize
-fallow-store-data-races a.c
during GIMPLE pass: slp
a.c: In function ‘d’:
a.c:4:6: internal compiler error: tree check: expected ssa_name, have addr_expr
in vect_get_and_check_slp_defs, at tree-vect-slp.c:533
4 | void d() {
| ^
0x74bc24 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/tree.c:9731
0x747607 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3313
0x747607 vect_get_and_check_slp_defs
../../gcc/tree-vect-slp.c:533
0x1056988 vect_build_slp_tree_2
../../gcc/tree-vect-slp.c:1576
0x10565b9 vect_build_slp_tree
../../gcc/tree-vect-slp.c:1371
0x1056b9e vect_build_slp_tree_2
../../gcc/tree-vect-slp.c:1652
0x10565b9 vect_build_slp_tree
../../gcc/tree-vect-slp.c:1371
0x1056b9e vect_build_slp_tree_2
../../gcc/tree-vect-slp.c:1652
0x10565b9 vect_build_slp_tree
../../gcc/tree-vect-slp.c:1371
0x105933d vect_build_slp_instance
../../gcc/tree-vect-slp.c:2216
0x105ab8c vect_analyze_slp_instance
../../gcc/tree-vect-slp.c:2598
0x105b1b4 vect_analyze_slp(vec_info*, unsigned int)
../../gcc/tree-vect-slp.c:2626
0x106182f vect_slp_analyze_bb_1
../../gcc/tree-vect-slp.c:4139
0x106182f vect_slp_region
../../gcc/tree-vect-slp.c:4234
0x106182f vect_slp_bbs
../../gcc/tree-vect-slp.c:4382
0x1063364 vect_slp_function(function*)
../../gcc/tree-vect-slp.c:4468
0x1064e36 execute
../../gcc/tree-vectorizer.c:1437
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
