[Bug target/112989] New: GC ICE with C++, `#include ` and `-fsanitize=address`

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112989

            Bug ID: 112989
           Summary: GC ICE with C++, `#include <arm_sve.h>` and
                    `-fsanitize=address`
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: GC, ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64-linux-gnu

Just a simple:
```
#pragma GCC aarch64 "arm_sve.h"
```

Causes an ICE:
```
ubuntu@ubuntu:~/src/upstream-gcc-aarch64\#
/bajas/pinskia/src/upstream-gcc-aarch64/gcc/objdir/stage1-gcc/cc1plus t.cc
-quiet -march=armv8.6-a+sve  -fsanitize=address
t.cc:1:32: internal compiler error: Segmentation fault
    1 | #pragma GCC aarch64 "arm_sve.h"
      |                                ^
0x1d150ff crash_signal
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/toplev.cc:316
0x12fb314 c_tree_chain_next(tree_node*)
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/c-family/c-common.h:1347
0x12eeda3 gt_ggc_mx_lang_tree_node(void*)
        ./gt-cp-tree.h:108
0x240ca7f gt_ggc_mx_registered_function(void*)
        ./gt-aarch64-sve-builtins.h:29
0x240cb23 gt_ggc_mx(aarch64_sve::registered_function*&)
        ./gt-aarch64-sve-builtins.h:47
0x240ea3f void
gt_ggc_mx<aarch64_sve::registered_function*>(vec<aarch64_sve::registered_function*,
va_gc, vl_embed>*)
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/vec.h:1449
0x240caef gt_ggc_mx_vec_registered_function__va_gc_(void*)
        ./gt-aarch64-sve-builtins.h:39
0x17a1237 ggc_mark_root_tab
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/ggc-common.cc:75
0x17a13a7 ggc_mark_roots()
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/ggc-common.cc:104
0x146d183 ggc_collect(ggc_collect)
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/ggc-page.cc:2227
0xfd0567 c_parse_final_cleanups()
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/cp/decl2.cc:5064
0x140a413 c_common_parse_file()
        /home/ubuntu/src/upstream-gcc-aarch64/gcc/gcc/c-family/c-opts.cc:1319
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.

```

I have not debugged this but I can't reproduce with a cross though, only a
native build (but stage1)