[Bug rtl-optimization/78255] [5/6 regression] Indirect sibling call causing wrong code generation for ARM

[avieira at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78255

--- Comment #14 from avieira at gcc dot gnu.org ---
Author: avieira
Date: Mon Jan  9 09:58:54 2017
New Revision: 244220

URL: https://gcc.gnu.org/viewcvs?rev=244220&root=gcc&view=rev
Log:
PR78255: Make postreload aware of NO_FUNCTION_CSE

gcc/ChangeLog:
2017-01-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

        Backport from mainline
        2016-12-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

        PR rtl-optimization/78255
        * gcc/postreload.c (reload_cse_simplify): Do not CSE a function if
        NO_FUNCTION_CSE is true.

gcc/testsuite/ChangeLog:
2017-01-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

        Backport from mainline
        2016-12-20  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * gcc.target/arm/pr78255-2.c: Fix to work for targets
        that do not optimize for tailcall.

2017-01-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

        Backport from mainline
        2016-12-09  Andre Vieira <andre.simoesdiasvieira@arm.com>

        PR rtl-optimization/78255
        * gcc.target/aarch64/pr78255.c: New.
        * gcc.target/arm/pr78255-1.c: New.
        * gcc.target/arm/pr78255-2.c: New.


Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.target/aarch64/pr78255.c
    branches/gcc-6-branch/gcc/testsuite/gcc.target/arm/pr78255-1.c
    branches/gcc-6-branch/gcc/testsuite/gcc.target/arm/pr78255-2.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/postreload.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog