[Bug tree-optimization/94574] aarch64: ICE during GIMPLE pass:ccp

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94574

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:f65cecabc32fe12b024253502af953e657e1a878

commit r10-7716-gf65cecabc32fe12b024253502af953e657e1a878
Author: Yang Yang <yangyang...@huawei.com>
Date:   Tue Apr 14 19:42:23 2020 +0000

    PR tree-optimization/94574 - aarch64: ICE during GIMPLE pass:ccp

    In this PR the testcase ICEs because a BIT_INSERT_EXPR whose replaced bits
are
    not fully inside the container is generated. A size check is added to avoid
    this kind of ICE.

    gcc/ChangeLog:

            PR tree-optimization/94574
            * tree-ssa.c (non_rewritable_lvalue_p): Add size check when
analyzing
            whether a vector-insert is rewritable using a BIT_INSERT_EXPR.

    gcc/testsuite/ChangeLog:

            PR tree-optimization/94574
            * gcc.dg/pr94574.c: New test.