Use plain -fopenacc to enable OpenACC kernels processing

	gcc/
	* tree-parloops.c (create_parallel_loop, gen_parallel_loop)
	(parallelize_loops): In OpenACC kernels mode, set n_threads to
	zero.
	(pass_parallelize_loops::gate): In OpenACC kernels mode, gate on
	flag_openacc.
	* tree-ssa-loop.c (gate_oacc_kernels): Likewise.
	gcc/testsuite/
	* c-c++-common/goacc/kernels-counter-vars-function-scope.c: Adjust
	to -ftree-parallelize-loops/-fopenacc changes.
	* 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.c: Likewise.
	* c-c++-common/goacc/kernels-loop-3.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.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-reduction.c: Likewise.
	* gfortran.dg/goacc/kernels-loop-inner.f95: Likewise.
	* gfortran.dg/goacc/kernels-loops-adjacent.f95: Likewise.
	libgomp/
	* oacc-parallel.c (GOACC_parallel_keyed): Initialize dims.
	* plugin/plugin-nvptx.c (nvptx_exec): Provide default values for
	dims.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c: Adjust to
	-ftree-parallelize-loops/-fopenacc changes.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-5.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-6.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-collapse.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-g.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-mod-not-zero.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-n.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-nest.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-reduction.c:
	Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233634 138bc75d-0d04-0410-961f-82ee72b054a4

18 files changed, 51 insertions, 47 deletions

diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 1394126f98f..e6a708255b0 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,35 @@
+2016-02-23  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* oacc-parallel.c (GOACC_parallel_keyed): Initialize dims.
+	* plugin/plugin-nvptx.c (nvptx_exec): Provide default values for
+	dims.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c: Adjust to
+	-ftree-parallelize-loops/-fopenacc changes.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-3.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-2.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-3.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-4.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-5.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-6.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-collapse.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-g.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-mod-not-zero.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-n.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-nest.c:
+	Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-loop.c: Likewise.
+	* testsuite/libgomp.oacc-c-c++-common/kernels-reduction.c:
+	Likewise.
+
 2016-02-22  Cesar Philippidis  <cesar@codesourcery.com>
 
 	* testsuite/libgomp.oacc-c-c++-common/vprop.c: New test.
diff --git a/libgomp/oacc-parallel.c b/libgomp/oacc-parallel.c
index bc246510e2a..f795bf7f92c 100644
--- a/libgomp/oacc-parallel.c
+++ b/libgomp/oacc-parallel.c
@@ -103,6 +103,10 @@ GOACC_parallel_keyed (int device, void (*fn) (void *),
       return;
     }
 
+  /* Default: let the runtime choose.  */
+  for (i = 0; i != GOMP_DIM_MAX; i++)
+    dims[i] = 0;
+
   va_start (ap, kinds);
   /* TODO: This will need amending when device_type is implemented.  */
   while ((tag = va_arg (ap, unsigned)) != 0)
diff --git a/libgomp/plugin/plugin-nvptx.c b/libgomp/plugin/plugin-nvptx.c
index 7ec1810a046..3f1bb6d90e9 100644
--- a/libgomp/plugin/plugin-nvptx.c
+++ b/libgomp/plugin/plugin-nvptx.c
@@ -894,9 +894,21 @@ nvptx_exec (void (*fn), size_t mapnum, void **hostaddrs, void **devaddrs,
   /* Initialize the launch dimensions.  Typically this is constant,
      provided by the device compiler, but we must permit runtime
      values.  */
-  for (i = 0; i != 3; i++)
-    if (targ_fn->launch->dim[i])
-      dims[i] = targ_fn->launch->dim[i];
+  int seen_zero = 0;
+  for (i = 0; i != GOMP_DIM_MAX; i++)
+    {
+      if (targ_fn->launch->dim[i])
+       dims[i] = targ_fn->launch->dim[i];
+      if (!dims[i])
+       seen_zero = 1;
+    }
+
+  if (seen_zero)
+    {
+      for (i = 0; i != GOMP_DIM_MAX; i++)
+       if (!dims[i])
+         dims[i] = /* TODO */ 32;
+    }
 
   /* This reserves a chunk of a pre-allocated page of memory mapped on both
      the host and the device. HP is a host pointer to the new chunk, and DP is
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c
index 13e57bd9877..c7592d6a340 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N (1024 * 512)
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-3.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-3.c
index f61a74a00fb..31114ac86d7 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-3.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-3.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N (1024 * 512)
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-2.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-2.c
index 2e4100fa7a2..d36592f7233 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-2.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-2.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 32
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-3.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-3.c
index b3e736bf358..e62297129fd 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-3.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-3.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 32
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-4.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-4.c
index 8b9affabedc..c73127897a9 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-4.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-4.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 32
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-5.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-5.c
index 83d4e7faf8f..67dcce26c89 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-5.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-5.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 32
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-6.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-6.c
index 01d5e5e4c24..b8b5ddeab83 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-6.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq-6.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 32
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq.c
index 61d1283a36a..9d9308a4a1f 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-and-seq.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 32
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-collapse.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-collapse.c
index f7f04cb9ed5..997d6c7aad2 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-collapse.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-collapse.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 100
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-g.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-g.c
index 96b6e4eaf45..88258be16bd 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-g.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-g.c
@@ -1,5 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
 /* { dg-additional-options "-g" } */
 
 #include "kernels-loop.c"
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-mod-not-zero.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-mod-not-zero.c
index 1433cb203b8..147ebb59945 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-mod-not-zero.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-mod-not-zero.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N ((1024 * 512) + 1)
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-n.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-n.c
index fd0d5b193a8..9a3eaca1380 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-n.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-n.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N ((1024 * 512) + 1)
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-nest.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-nest.c
index 21d2599f0aa..28c725a61a2 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-nest.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop-nest.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N 1000
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop.c
index 3762e5a8b9a..355123c6088 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-loop.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define N (1024 * 512)
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-reduction.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-reduction.c
index 511e25f882a..8647a9432fc 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-reduction.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-reduction.c
@@ -1,6 +1,3 @@
-/* { dg-do run } */
-/* { dg-additional-options "-ftree-parallelize-loops=32" } */
-
 #include <stdlib.h>
 
 #define n 10000