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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/108240] [13 Regression] Error message missing since
 r13-4894-gacc727cf02a144 (then make concealed ICE exposed)
Date: Tue, 17 Jan 2023 13:32:38 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108240

--- Comment #13 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Martin Li=C5=A1ka from comment #11)
> One more test-case that started to ICE with the same revision:
>=20
> ./xgcc -B.
> /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/atomic/c11-atomic-exec-=
2.c
> -mcpu=3De300c2 -mmodulo -c
> during RTL pass: reload
> /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/atomic/c11-atomic-exec-=
2.c:
> In function =E2=80=98test_mult=E2=80=99:
> /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/atomic/c11-atomic-exec-=
2.c:
> 74:1: internal compiler error: maximum number of generated reload insns p=
er
> insn achieved (90)
>    74 | }
>       | ^
> 0x7ffff78bb5af __libc_start_call_main
> 	../sysdeps/nptl/libc_start_call_main.h:58
> 0x7ffff78bb678 __libc_start_main_impl
> 	../csu/libc-start.c:381
> 0xb648e4 _start
> 	../sysdeps/x86_64/start.S:115
> 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 think it has the same root cause as PR108415:

RS6000_CPU ("e300c2", PROCESSOR_PPCE300C2, OPTION_MASK_SOFT_FLOAT)

and also expected this ICE can be reproduced with explicit -m64 at r13-4893
(before the culprit commit r13-4894).=