[Bug lto/105012] [12 Regression] wrf from SPECCPU2017 ICEs during LTO linking

["marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105012

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 52661
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52661&action=edit
ltrans object file

I have a small LTRANS reproducer:

$ ./lto1 -fltrans /home/marxin/Programming/testcases/wrf_r.ltrans.o
Reading object files: /home/marxin/Programming/testcases/wrf_r.ltrans.o {GC
2365k}  {heap 1168k}
Reading the symbol table:
Merging declarations: {GC 2414k}  {heap 1168k}
Reading summaries: {GC 2414k}  {heap 1168k} {GC 2414k}  {heap 1168k} {GC 2414k}
 {heap 1168k} {GC 2414k}  {heap 1168k} <cp> {GC 2422k}  {heap 1168k} {GC 2422k}
 {heap 1168k} {GC 2422k}  {heap 1168k} {GC 2422k}  {heap 1168k} {GC 2422k} 
{heap 1168k} <modref> {GC 2426k}  {heap 1168k} {GC 2426k}  {heap 1168k}
<static-var> {GC 2426k}  {heap 1168k} {GC 2426k}  {heap 1168k} {GC 2426k} 
{heap 1168k} {GC 2426k}  in:q.4.lto_priv.0 in:p.5.lto_priv.0 in:d.6.lto_priv.0
in:c.7.lto_priv.0 in:b.8.lto_priv.0 in:a.9.lto_priv.0
in:supersat.2.lto_priv.0Reading function bodies:
Performing interprocedural optimizations
Assembling functions:
 <simdclone> {heap 1168k} dropmixnuc.constprop in:__ndrop_MOD_dropmixnuc
in:__error_function_MOD_calerf_r8 in:__error_function_MOD_derf
in:__module_cam_support_MOD_endrun in:wrf_message_ in:wrf_error_fatal_
in:__module_cam_support_MOD_endrun.part.0 in:__ndrop_MOD_loadaer
in:__ndrop_MOD_ccncalc in:__module_cam_support_MOD_outfld {GC madv_dontneed
264k} {GC 6209k -> 3650k} {GC madv_dontneed 652k} {GC 5337k -> 3807k}during
GIMPLE pass: ifcvt

../../../../home/marxin/Programming/cpu2017/benchspec/CPU/521.wrf_r/build/build_peak_gcc-m64.0001/module_cam_mp_ndrop.fppized.f90:
In function ‘dropmixnuc.constprop’:
../../../../home/marxin/Programming/cpu2017/benchspec/CPU/521.wrf_r/build/build_peak_gcc-m64.0001/module_cam_mp_ndrop.fppized.f90:33:27:
internal compiler error: Segmentation fault
0x135c4fb crash_signal
        /home/marxin/Programming/gcc/gcc/toplev.cc:322
0x7ffff78b93cf ???
       
/usr/src/debug/glibc-2.35-2.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0xb02a60 tree_check(tree_node*, char const*, int, char const*, tree_code)
        /home/marxin/Programming/gcc/gcc/tree.h:3450
0x15369e3 first_imm_use_stmt
        /home/marxin/Programming/gcc/gcc/ssa-iterators.h:931
0x15390e6 dse_classify_store(ao_ref*, gimple*, bool, simple_bitmap_def*, bool*,
tree_node*)
        /home/marxin/Programming/gcc/gcc/tree-ssa-dse.cc:954
0x141afe1 ifcvt_local_dce
        /home/marxin/Programming/gcc/gcc/tree-if-conv.cc:3154
0x141b89f tree_if_conversion(loop*, vec<gimple*, va_heap, vl_ptr>*)
        /home/marxin/Programming/gcc/gcc/tree-if-conv.cc:3383
0x141bb02 execute
        /home/marxin/Programming/gcc/gcc/tree-if-conv.cc:3461
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.

Richi: Can you please debug this?