[Bug rtl-optimization/86334] wrong code with -march=athlon -mmemcpy-strategy=libcall:-1:noalign

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86334

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Feb  7 14:35:30 2019
New Revision: 268626

URL: https://gcc.gnu.org/viewcvs?rev=268626&root=gcc&view=rev
Log:
        Backported from mainline
        2019-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/49429
        PR target/49454
        PR rtl-optimization/86334
        PR target/88906
        * expr.c (emit_block_move_hints): Move marking of MEM_EXPRs
        addressable from here...
        (emit_block_op_via_libcall): ... to here.

        * gcc.target/i386/pr86334.c: New test.
        * gcc.target/i386/pr88906.c: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.target/i386/pr86334.c
    branches/gcc-8-branch/gcc/testsuite/gcc.target/i386/pr88906.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/expr.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog