https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113657
Bug ID: 113657
Summary: [14 Regression] ICE Segmentation fault since
r14-1187-gd6b756447cd58b
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: aoliva at gcc dot gnu.org
Target Milestone: ---
Compiling reduced testcase gcc.target/aarch64/pr113550.c results in ICE since
r14-1187-gd6b756447cd58b.
$ cat pr113550.c
#pragma GCC target "+ls64"
#pragma GCC aarch64 "arm_acle.h"
__arm_data512_t foo(__arm_data512_t* ptr) { return *ptr; }
$ aarch64-linux-gnu-gcc pr113550.c -mstrict-align
during RTL pass: split5
pr113550.c: In function ‘foo’:
pr113550.c:3:58: internal compiler error: Segmentation fault
3 | __arm_data512_t foo(__arm_data512_t* ptr) { return *ptr; }
| ^
0x178f9de crash_signal
/home/mjires/git/GCC/master/gcc/toplev.cc:317
0x16f7566 reg_overlap_mentioned_p(rtx_def const*, rtx_def const*)
/home/mjires/git/GCC/master/gcc/rtlanal.cc:1857
0x267687e gen_split_300(rtx_insn*, rtx_def**)
/home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-simd.md:8232
0x2a7ffb2 split_71
/home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-simd.md:8212
0x2a99edf split_131
/home/mjires/git/GCC/master/gcc/config/aarch64/aarch64.md:875
0x2a9dcf4 split_insns(rtx_def*, rtx_insn*)
/home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-sve.md:10993
0x117c8db try_split(rtx_def*, rtx_insn*, int)
/home/mjires/git/GCC/master/gcc/emit-rtl.cc:3941
0x16a3a44 split_insn
/home/mjires/git/GCC/master/gcc/recog.cc:3405
0x16a3ea6 split_all_insns_noflow()
/home/mjires/git/GCC/master/gcc/recog.cc:3567
0x16a5ee4 execute
/home/mjires/git/GCC/master/gcc/recog.cc:4641
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.
$ aarch64-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=aarch64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/home/mjires/built/master/libexec/gcc/aarch64-linux-gnu/14.0.1/lto-wrapper
Target: aarch64-linux-gnu
Configured with: /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --target=aarch64-linux-gnu
--disable-bootstrap --enable-languages=c,c++,fortran --disable-multilib
--disable-libsanitizer --enable-checking : (reconfigured)
/home/mjires/git/GCC/master/configure --prefix=/home/mjires/built/master
--target=aarch64-linux-gnu --disable-bootstrap --enable-languages=c,c++,fortran
--disable-multilib --disable-libsanitizer --enable-checking
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240129 (experimental) (GCC)
