[Bug rtl-optimization/63475] Postreload CSE propagates aliased memory operand

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63475

--- Comment #6 from uros at gcc dot gnu.org ---
Author: uros
Date: Tue Oct 14 18:40:59 2014
New Revision: 216217

URL: https://gcc.gnu.org/viewcvs?rev=216217&root=gcc&view=rev
Log:
    PR rtl-optimization/63475
    * alias.c (true_dependence_1): Always use get_addr to extract
    true address operands from x_addr and mem_addr.  Use extracted
    address operands to check for references with alignment ANDs.
    Use extracted address operands with find_base_term and
    base_alias_check. For noncanonicalized operands call canon_rtx with
    extracted address operand.
    (write_dependence_1): Ditto.
    (may_alias_p): Ditto.  Remove unused calls to canon_rtx.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/alias.c