[Bug rtl-optimization/64756] [5 Regression] wrong code at -O3 on x86_64-linux-gnu (in 32-bit mode)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64756

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Feb  3 20:41:38 2015
New Revision: 220377

URL: https://gcc.gnu.org/viewcvs?rev=220377&root=gcc&view=rev
Log:
    PR rtl-optimization/64756
    * cse.c (invalidate_dest): New function.
    (cse_insn): Use it.  If dest != SET_DEST (sets[i].rtl) and
    HASH (SET_DEST (sets[i].rtl), mode) computation sets do_not_record,
    invalidate and do not record it.

    * gcc.c-torture/execute/pr64756.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr64756.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cse.c
    trunk/gcc/testsuite/ChangeLog