https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112990
Bug ID: 112990
Summary: [14 Regression][s390x] ICE in related_vector_mode, at
stor-layout.cc:539 since r14-3381-g27de9aa152141e
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: mjires at suse dot cz
CC: rguenther at suse dot de
Target Milestone: ---
Target: s390x
Compiling reduced testcase gcc.target/s390/vector/reverse-elements-6.c with
s390x cross compiler results in ICE since r14-3381-g27de9aa152141e.
$ cat reverse-elements-6.c
typedef long __attribute__((vector_size(16))) V2DI;
V2DI v2di_x;
void v2di() {
V2DI y, z;
for (int i = 0; i < 2; ++i)
z[i] = y[1];
v2di_x = z;
}
$ s390x-linux-gnu-gcc reverse-elements-6.c -O1
during RTL pass: expand
reverse-elements-6.c: In function ‘v2di’:
reverse-elements-6.c:7:10: internal compiler error: in related_vector_mode, at
stor-layout.cc:539
7 | v2di_x = z;
| ~~~~~~~^~~
0x15dd230 related_vector_mode(machine_mode, scalar_mode, poly_int<1u, unsigned
long>)
/home/mjires/git/GCC/master/gcc/stor-layout.cc:539
0x1428a35 qimode_for_vec_perm(machine_mode)
/home/mjires/git/GCC/master/gcc/optabs-query.cc:358
0x141db61 expand_vec_perm_const(machine_mode, rtx_def*, rtx_def*,
int_vector_builder<poly_int<1u, long> > const&, machine_mode, rtx_def*)
/home/mjires/git/GCC/master/gcc/optabs.cc:6445
0x106f66f expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/home/mjires/git/GCC/master/gcc/expr.cc:10844
0x1070df4 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/home/mjires/git/GCC/master/gcc/expr.cc:11216
0x1068fa1 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
/home/mjires/git/GCC/master/gcc/expr.cc:9407
0x105debf store_expr(tree_node*, rtx_def*, int, bool, bool)
/home/mjires/git/GCC/master/gcc/expr.cc:6709
0x105c5ff expand_assignment(tree_node*, tree_node*, bool)
/home/mjires/git/GCC/master/gcc/expr.cc:6430
0xec1ec7 expand_gimple_stmt_1
/home/mjires/git/GCC/master/gcc/cfgexpand.cc:3960
0xec22b5 expand_gimple_stmt
/home/mjires/git/GCC/master/gcc/cfgexpand.cc:4058
0xeca6e0 expand_gimple_basic_block
/home/mjires/git/GCC/master/gcc/cfgexpand.cc:6114
0xecca96 execute
/home/mjires/git/GCC/master/gcc/cfgexpand.cc:6849
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.
$ s390x-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=s390x-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/home/mjires/built/master/libexec/gcc/s390x-linux-gnu/14.0.0/lto-wrapper
Target: s390x-linux-gnu
Configured with: /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --target=s390x-linux-gnu --disable-bootstrap
--enable-languages=c,c++ --disable-multilib --disable-libsanitizer
--enable-checking : (reconfigured) /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --target=s390x-linux-gnu --disable-bootstrap
--enable-languages=c,c++ --disable-multilib --disable-libsanitizer
--enable-checking
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20231212 (experimental) (GCC)
