https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89498
--- Comment #2 from G. Steinmetz <gs...@t-online.de> ---
Hm, on my environment it's not necessary to include <math.h>,
can therefore be omitted. But that case was only exemplary.
You can try to catch the other ones, e.g. simply looping over
###
export LANG=C
cd gcc/testsuite
for i in */*.[cC] */*/*.[cC] */*/*/*.[cC]
do
timeout 2.0 gcc-9-20190224 -c $i -O2 -gdwarf-5 -gsplit-dwarf
done > _list 2>&1
grep -i 'internal compiler' _list
grep -i 'internal compiler' _list | wc -l
###
Or alternatively one combination out of :
-O2 -gdwarf -gsplit-dwarf
-O2 -gdwarf-5 -gsplit-dwarf
-O2 -gdwarf-4 -gsplit-dwarf
-O2 -g -gdwarf-5 -gsplit-dwarf
It would be very astonishing if nothing comes out there ...
On my plain vanilla test PC above loop finds 19341 cases with ICE :
$ grep -i 'internal compiler' _list | wc -l
19341
Including another ICE group (closely related or not)
with 2327 failing cases, e.g. :
$ gcc-9-20190224 -c gcc.dg/align-2.c -O2 -gdwarf-5 -gsplit-dwarf
gcc.dg/align-2.c:6:1: internal compiler error: Segmentation fault
6 | extern char compile_time_assert[__alignof__(v4) == sizeof(float)*4 ? 1
: -1];
| ^~~~~~
0xa89c1f crash_signal
../../gcc/toplev.c:326
0x797b34 void hash_table<addr_hasher, xcallocator>::traverse_noresize<unsigned
int*, &(count_index_addrs(addr_table_entry**, unsigned int*))>(unsigned int*)
../../gcc/hash-table.h:965
0x797b34 dwarf2out_finish
../../gcc/dwarf2out.c:31551
