[Bug target/98100] ICE in expand_debug_locations, at cfgexpand.c:5610

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98100

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-8 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:455f165fd86f50163d2147b669edcc2e9bf5b0f8

commit r8-10867-g455f165fd86f50163d2147b669edcc2e9bf5b0f8
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Fri Dec 4 12:18:21 2020 +0100

    debug: Fix another vector DECL_MODE ICE [PR98100]

    The PR88587 fix changes DECL_MODE of vars with vector type during
inlining/cloning
    when the vars are copied, so that their DECL_MODE matches their TYPE_MODE
in
    the new function.  Unfortunately, the following testcase still ICEs, the
var
    isn't really used in the new function and so it isn't copied, but becomes
    just a nonlocalized var.  So we can't adjust its DECL_MODE because it
    appears in multiple functions and needs different modes in between them.
    The following patch changes the DEBUG_INSN creation to use TYPE_MODE
instead
    of DECL_MODE for vars with vector types.

    2020-12-04  Jakub Jelinek  <jakub@redhat.com>

            PR target/98100
            * cfgexpand.c (expand_gimple_basic_block): For vars with
            vector type, use TYPE_MODE rather than DECL_MODE.

            * gcc.target/i386/pr98100.c: New test.

    (cherry picked from commit 4c18faa4dd4dffdb76bc879b7555574ce3f4da01)