[Bug target/113220] New: [aarch64] ICE Segmentation fault with r14-6178-g8d29b7aca15133

["mjires at suse dot cz" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113220

            Bug ID: 113220
           Summary: [aarch64] ICE Segmentation fault with
                    r14-6178-g8d29b7aca15133
           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: richard.sandiford at arm dot com
  Target Milestone: ---
            Target: aarch64

Compiling reduced testcase gcc.target/aarch64/sme/zt0_state_5.c results in ICE
with r14-6178-g8d29b7aca15133.

$ cat zt0_state_5.c
#pragma GCC target "+sme2"
void inout_zt0() __arm_inout("zt0") {
  int ptr;
  ptr += 1;
}


$ aarch64-linux-gnu-gcc zt0_state_5.c -ftrapv -fstack-clash-protection
during RTL pass: mode_sw
zt0_state_5.c: In function ‘inout_zt0’:
zt0_state_5.c:5:1: internal compiler error: Segmentation fault
    5 | }
      | ^
0x1787d3a crash_signal
        /home/mjires/git/GCC/master/gcc/toplev.cc:316
0x16f07c8 rtx_properties::try_to_add_pattern(rtx_def const*)
        /home/mjires/git/GCC/master/gcc/rtlanal.cc:2246
0x16f0d4b rtx_properties::try_to_add_insn(rtx_insn const*, bool)
        /home/mjires/git/GCC/master/gcc/rtlanal.cc:2356
0x1c83f7b growing_rtx_properties<vec_rtx_properties_base>::add_insn(rtx_insn
const*, bool)::{lambda()#1}::operator()() const
        /home/mjires/git/GCC/master/gcc/rtlanal.h:288
0x1c866a2 void
growing_rtx_properties<vec_rtx_properties_base>::repeat<growing_rtx_properties<vec_rtx_properties_base>::add_insn(rtx_insn
const*,
bool)::{lambda()#1}>(growing_rtx_properties<vec_rtx_properties_base>::add_insn(rtx_insn
const*, bool)::{lambda()#1})
        /home/mjires/git/GCC/master/gcc/rtlanal.h:246
0x1c83fda growing_rtx_properties<vec_rtx_properties_base>::add_insn(rtx_insn
const*, bool)
        /home/mjires/git/GCC/master/gcc/rtlanal.h:288
0x1c79afe aarch64_mode_emit
        /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64.cc:29400
0x2b318d1 optimize_mode_switching
        /home/mjires/git/GCC/master/gcc/mode-switching.cc:1210
0x2b31b7a execute
        /home/mjires/git/GCC/master/gcc/mode-switching.cc:1309
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/14.0.0/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 14.0.0 20240103 (experimental) (GCC)