[Bug tree-optimization/86492] [8/9 Regression] store-merging wrong-code

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86492

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Jul 12 07:46:04 2018
New Revision: 262577

URL: https://gcc.gnu.org/viewcvs?rev=262577&root=gcc&view=rev
Log:
        PR tree-optimization/86492
        * gimple-ssa-store-merging.c
        (imm_store_chain_info::coalesce_immediate_stores): Call
        check_no_overlap even for the merge_overlapping case.

        * gcc.c-torture/execute/pr86492.c: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.c-torture/execute/pr86492.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/gimple-ssa-store-merging.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog