[Bug tree-optimization/105374] [12 Regression] ICE in fold_convert_loc, at fold-const.cc:2580 during GIMPLE pass: reassoc since r12-7338-g884f77b4222289510e1df9db2889b60c5df6fcda

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105374

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Christophe Lyon <clyon@gcc.gnu.org>:

https://gcc.gnu.org/g:6c211e70eb9d89db2be630c0d5555d21e4aee144

commit r12-8279-g6c211e70eb9d89db2be630c0d5555d21e4aee144
Author: Christophe Lyon <christophe.lyon@arm.com>
Date:   Tue Apr 26 15:57:02 2022 +0100

    testsuite: Add arm testcase for PR105374

    As discussed in the PR, here is the testcase with the appropriate dg-*
    directives.

    Tested on arm-none-eabi with
    1 -mcpu=cortex-a7/-mfloat-abi=soft/-march=armv7ve+simd
    2 -mcpu=cortex-a7/-mfloat-abi=hard/-march=armv7ve+simd
    3 -mthumb/-mcpu=cortex-a7/-mfloat-abi=hard/-march=armv7ve+simd
    4 -mthumb/-mfloat-abi=soft/-march=armv6s-m
    5 -mthumb/-mfloat-abi=soft/-march=armv7-m
    6 -mthumb/-mfloat-abi=hard/-march=armv7e-m+fp
    7 -mthumb/-mfloat-abi=hard/-march=armv7e-m+fp.dp
    8 -mthumb/-mfloat-abi=hard/-march=armv8-m.main+fp+dsp
    9 -mthumb/-mfloat-abi=hard/-march=armv8.1-m.main+mve.fp+fp.dp
    10 -mthumb/-mfloat-abi=hard/-march=armv8.1-m.main+mve

    The test is UNSUPPORTED with the first three ones (because of
    -mcpu=cortex-a7), ignored with armv6s-m, and PASSes with all the other
    ones, while it used crash without Jakub's fix (r12-8263), ie. FAIL
    with options 5,6,7,8,10. The test passed without Jakub's fix with
    option 9 because the problem happens only with an integer-only MVE.

    2022-04-26  Christophe Lyon  <christophe.lyon@arm.com>

            gcc/testsuite/

            PR tree-optimization/105374
            * gcc.target/arm/simd/pr105374.C: New.