[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

["carlos.seo at linaro dot org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #3 from Carlos Eduardo Seo <carlos.seo at linaro dot org> ---
(In reply to Robin Dapp from comment #2)
> We already discussed that briefly on the mailing list.  Richard Sandiford
> suspected a target bug.  What options do I need to configure GCC in order to
> reproduce that locally?

You can reproduce exactly what is being done by the CI by following:
https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/7ca35f2e430081d6ec91e910002f92d9713350fa/tcwg_gnu_embed_check_gcc/master-thumb_m55_hard_eabi/reproduction_instructions.txt

If you prefer to do it manually:

configure  SHELL=/bin/bash \
       
--with-mpc=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
       
--with-mpfr=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
       
--with-gmp=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
        --with-gnu-as \
        --with-gnu-ld \
        --disable-libmudflap \
        --enable-lto \
        --enable-shared \
        --without-included-gettext \
        --enable-nls \
        --with-system-zlib \
        --disable-sjlj-exceptions \
        --enable-gnu-unique-object \
        --enable-linker-build-id \
        --disable-libstdcxx-pch \
        --enable-c99 \
        --enable-clocale=gnu \
        --enable-libstdcxx-debug \
        --enable-long-long \
        --with-cloog=no \
        --with-ppl=no \
        --with-isl=no \
        --enable-threads=no \
        --disable-multiarch \
        --disable-multilib \
        --with-mode=thumb \
        --with-arch=armv8.1-m.main+mve.fp+fp.dp \
        --with-float=hard \
       
--with-sysroot=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-eabi
\
        --with-headers=yes \
        --with-native-system-header-dir=/include \
        --with-newlib \
        --enable-checking=yes \
        --disable-bootstrap \
        --enable-languages=c,c++,lto \
       
--prefix=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
        --build=x86_64-pc-linux-gnu \
        --host=x86_64-pc-linux-gnu \
        --target=arm-eabi