[Bug tree-optimization/84969] [8 Regression] Wrong code with -ftree-loop-distribute-patterns

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84969

--- Comment #3 from amker at gcc dot gnu.org ---
Author: amker
Date: Wed Mar 21 10:42:34 2018
New Revision: 258710

URL: https://gcc.gnu.org/viewcvs?rev=258710&root=gcc&view=rev
Log:
        PR tree-optimization/84969
        * tree-loop-distribution.c (fuse_memset_builtins): Don't reorder
        builtin memset partitions if they set different rhs values.

        gcc/testsuite
        * gcc.dg/tree-ssa/pr84969.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84969.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-loop-distribution.c