[Bug middle-end/69921] Switch OpenACC kernels number of gangs from "decide at run time" to "decide at compile time"

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69921

--- Comment #3 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
Author: tschwinge
Date: Fri May 12 09:20:35 2017
New Revision: 247958

URL: https://gcc.gnu.org/viewcvs?rev=247958&root=gcc&view=rev
Log:
[PR middle-end/69921] Use "oacc kernels parallelized" attribute for
parallelized OpenACC kernels

        gcc/
        PR middle-end/69921
        * tree-parloops.c (create_parallel_loop): Set "oacc kernels
        parallelized" attribute for parallelized OpenACC kernels.
        * omp-low.c (execute_oacc_device_lower): Use it.
        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Likewise.
        * omp-low.c (set_oacc_fn_attrib): Make it "static".
        * omp-low.h (set_oacc_fn_attrib): Remove prototype.
        gcc/testsuite/
        * c-c++-common/goacc/classify-kernels-unparallelized.c: Adjust.
        * c-c++-common/goacc/classify-kernels.c: Likewise.
        * c-c++-common/goacc/kernels-acc-loop-reduction.c: Likewise.
        * c-c++-common/goacc/kernels-acc-loop-smaller-equal.c: Likewise.
        * c-c++-common/goacc/kernels-counter-vars-function-scope.c:
        Likewise.
        * c-c++-common/goacc/kernels-double-reduction-n.c: Likewise.
        * c-c++-common/goacc/kernels-double-reduction.c: Likewise.
        * c-c++-common/goacc/kernels-loop-2-acc-loop.c: Likewise.
        * c-c++-common/goacc/kernels-loop-2.c: Likewise.
        * c-c++-common/goacc/kernels-loop-3-acc-loop.c: Likewise.
        * c-c++-common/goacc/kernels-loop-3.c: Likewise.
        * c-c++-common/goacc/kernels-loop-acc-loop.c: Likewise.
        * c-c++-common/goacc/kernels-loop-data-2.c: Likewise.
        * c-c++-common/goacc/kernels-loop-data-enter-exit-2.c: Likewise.
        * c-c++-common/goacc/kernels-loop-data-enter-exit.c: Likewise.
        * c-c++-common/goacc/kernels-loop-data-update.c: Likewise.
        * c-c++-common/goacc/kernels-loop-data.c: Likewise.
        * c-c++-common/goacc/kernels-loop-g.c: Likewise.
        * c-c++-common/goacc/kernels-loop-mod-not-zero.c: Likewise.
        * c-c++-common/goacc/kernels-loop-n-acc-loop.c: Likewise.
        * c-c++-common/goacc/kernels-loop-n.c: Likewise.
        * c-c++-common/goacc/kernels-loop-nest.c: Likewise.
        * c-c++-common/goacc/kernels-loop.c: Likewise.
        * c-c++-common/goacc/kernels-one-counter-var.c: Likewise.
        * c-c++-common/goacc/kernels-parallel-loop-data-enter-exit.c:
        Likewise.
        * c-c++-common/goacc/kernels-reduction.c: Likewise.
        * gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise.
        * gfortran.dg/goacc/classify-kernels.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-2.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-data-2.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-data-enter-exit-2.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-data-enter-exit.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-data-update.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-data.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop-n.f95: Likewise.
        * gfortran.dg/goacc/kernels-loop.f95: Likewise.
        * gfortran.dg/goacc/kernels-parallel-loop-data-enter-exit.f95:
        Likewise.

trunk r247957

Modified:
    branches/gomp-4_0-branch/gcc/ChangeLog.gomp
    branches/gomp-4_0-branch/gcc/config/nvptx/nvptx.c
    branches/gomp-4_0-branch/gcc/omp-low.c
    branches/gomp-4_0-branch/gcc/omp-low.h
    branches/gomp-4_0-branch/gcc/testsuite/ChangeLog.gomp
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/classify-kernels-unparallelized.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/classify-kernels.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-acc-loop-reduction.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-acc-loop-smaller-equal.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-counter-vars-function-scope.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-double-reduction-n.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-double-reduction.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-2-acc-loop.c
    branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-2.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-3-acc-loop.c
    branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-3.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-acc-loop.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-data-2.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-data-enter-exit-2.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-data-enter-exit.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-data-update.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-data.c
    branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-g.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-mod-not-zero.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-n-acc-loop.c
    branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-n.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop-nest.c
    branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-loop.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-one-counter-var.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-parallel-loop-data-enter-exit.c
   
branches/gomp-4_0-branch/gcc/testsuite/c-c++-common/goacc/kernels-reduction.c
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/classify-kernels-unparallelized.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/classify-kernels.f95
    branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-2.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-data-2.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-data-enter-exit-2.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-data-enter-exit.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-data-update.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-data.f95
    branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop-n.f95
    branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-loop.f95
   
branches/gomp-4_0-branch/gcc/testsuite/gfortran.dg/goacc/kernels-parallel-loop-data-enter-exit.f95
    branches/gomp-4_0-branch/gcc/tree-parloops.c