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From: "aldyh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/106785] ICE in fail, at selftest.cc:47 since
 r13-2266-g8bb1df032cc080
Date: Wed, 31 Aug 2022 11:18:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106785

--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
(In reply to Martin Li=C5=A1ka from comment #0)
> Fails for the following cross compilers:
> pdp11-aout  rx-elf  vax-linux-gnu  vax-netbsdelf
>=20
> $ ./xgcc -v
> Using built-in specs.
> COLLECT_GCC=3D./xgcc
> Target: vax-linux-gnu
> Configured with: /home/marxin/Programming/gcc/configure
> --enable-languages=3Dc,c++ --prefix=3D/home/marxin/bin/gcc --disable-mult=
ilib
> --disable-libsanitizer --disable-bootstrap --target=3Dvax-linux-gnu :
> (reconfigured) /home/marxin/Programming/gcc/configure
> --enable-languages=3Dc,c++ --prefix=3D/home/marxin/bin/gcc --disable-mult=
ilib
> --disable-libsanitizer --disable-bootstrap --target=3Dvax-linux-gnu
> Thread model: posix
> Supported LTO compression algorithms: zlib zstd
> gcc version 13.0.0 20220830 (experimental) (GCC)=20
>=20
> $ make
> ./xgcc -B./ -B/home/marxin/bin/gcc/vax-linux-gnu/bin/ -isystem
> /home/marxin/bin/gcc/vax-linux-gnu/include -isystem
> /home/marxin/bin/gcc/vax-linux-gnu/sys-include -L/dev/shm/objdir2/gcc/../=
ld=20
> -xc++ -nostdinc /dev/null -S -o /dev/null
> -fself-test=3D/home/marxin/Programming/gcc/gcc/testsuite/selftests
> /home/marxin/Programming/gcc/gcc/value-range.cc:3517: range_tests_nan: FA=
IL:
> ASSERT_NE (r0, r1)
> In function =E2=80=98test_fn=E2=80=99:
> cc1plus: internal compiler error: in fail, at selftest.cc:47
> 0x25b888b selftest::fail(selftest::location const&, char const*)
> 	/home/marxin/Programming/gcc/gcc/selftest.cc:47
> 0x1b554b8 range_tests_nan
> 	/home/marxin/Programming/gcc/gcc/value-range.cc:3517

Huh.  Does the VAX have different NAN rules, or is HONOR_NANS off by defaul=
t on
it?

Either way, could you attach the .i file from the selftests if you still ha=
ve
the build handy?=