[Bug tree-optimization/84503] [7 Regression] store-merging miscompilation on powerpc64 with -O3 since r241789

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84503

Jakub Jelinek  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #9 from Jakub Jelinek  ---
Fixed.

[Bug tree-optimization/84503] [7 Regression] store-merging miscompilation on powerpc64 with -O3 since r241789

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84503

--- Comment #8 from Jakub Jelinek  ---
Author: jakub
Date: Sat Mar  3 13:38:48 2018
New Revision: 258201

URL: https://gcc.gnu.org/viewcvs?rev=258201=gcc=rev
Log:
Backported from mainline
2018-02-22  Jakub Jelinek  

PR tree-optimization/84503
* gcc.dg/pr84503-1.c: New test.
* gcc.dg/pr84503-2.c: New test.

2017-11-10  Jakub Jelinek  

PR bootstrap/82916
* gimple-ssa-store-merging.c
(pass_store_merging::terminate_all_aliasing_chains): For
gimple_store_p stmts also call refs_output_dependent_p.

* gcc.dg/pr82916.c: New test.

Added:
branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr82916.c
branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84503-1.c
branches/gcc-7-branch/gcc/testsuite/gcc.dg/pr84503-2.c
Modified:
branches/gcc-7-branch/gcc/ChangeLog
branches/gcc-7-branch/gcc/gimple-ssa-store-merging.c
branches/gcc-7-branch/gcc/testsuite/ChangeLog

[Bug tree-optimization/84503] [7 Regression] store-merging miscompilation on powerpc64 with -O3 since r241789

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84503

Richard Biener  changed:

   What|Removed |Added

  Known to work||8.0.1
   Target Milestone|8.0 |7.4

[Bug tree-optimization/84503] [7 Regression] store-merging miscompilation on powerpc64 with -O3 since r241789

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84503

Jakub Jelinek  changed:

   What|Removed |Added

Summary|[7/8 Regression]|[7 Regression]
   |store-merging   |store-merging
   |miscompilation on powerpc64 |miscompilation on powerpc64
   |with -O3 since r241789  |with -O3 since r241789

--- Comment #7 from Jakub Jelinek  ---
Fixed on the trunk so far, 7.x fix will be very different.