[Bug tree-optimization/65053] [5 Regression] PostgreSQL miscompilation

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65053

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Feb 13 23:20:31 2015
New Revision: 220700

URL: https://gcc.gnu.org/viewcvs?rev=220700&root=gcc&view=rev
Log:
    PR tree-optimization/65053
    * tree-ssa-phiopt.c (value_replacement): When moving assign before
    cond, either reset VR on lhs or set it to phi result VR.

    * gcc.c-torture/execute/pr65053-1.c: New test.
    * gcc.c-torture/execute/pr65053-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr65053-1.c
    trunk/gcc/testsuite/gcc.c-torture/execute/pr65053-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiopt.c