[Bug rtl-optimization/104637] [9/10/11/12 Regression] ICE: maximum number of LRA assignment passes is achieved (30) with -Og -fno-forward-propagate -mavx since r9-5221-gd8fcab689435a29d

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104637

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:d7b4c8feee11ea04b83f9996654c96b130588570

commit r12-7449-gd7b4c8feee11ea04b83f9996654c96b130588570
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Wed Mar 2 11:04:35 2022 +0100

    testsuite: Fix up pr104637 testcase [PR104637]

    This testcase FAILs everywhere for 3 reasons:
    1) the testcase can't work on ia32, where sizeof (long double) == 12
       and as it is not a power of 2, we disallow creating vectors with such
       elements, -mx32 and -m64 are fine
    2) the testcase emits a lot of -Wdiv-by-zero warnings, I've just added
       -Wno-div-by-zero to dg-options
    3) my fault, when tweaking the testcase I've missed 33 initializers of
       a 32 element vector which didn't change anything on the ICE, but is
       still reported

    This patch fixes all of it, tested with
    RUNTESTFLAGS='--target_board=unix\{-m32,-m64\} i386.exp=pr104637.c'
    both without the LRA fix where it ICEs and with it where it passes
    everywhere.

    2022-03-02  Jakub Jelinek  <jakub@redhat.com>

            PR rtl-optimization/104637
            * gcc.target/i386/pr104637.c: Don't run on ia32.  Add
-Wno-div-by-zero
            to dg-options.
            (foo): Remove extraneous initializer.