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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/c/ChangeLog8
-rw-r--r--gcc/c/c-parser.c5
-rw-r--r--gcc/c/c-typeck.c4
-rw-r--r--gcc/cp/ChangeLog8
-rw-r--r--gcc/cp/parser.c5
-rw-r--r--gcc/cp/semantics.c4
-rw-r--r--gcc/omp-low.c4
-rw-r--r--libgomp/ChangeLog5
-rw-r--r--libgomp/testsuite/libgomp.oacc-c-c++-common/zero_length_subarrays.c45
10 files changed, 84 insertions, 10 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9e39380..7f7fc13 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-07-15 Cesar Philippidis <cesar@codesourcery.com>
+
+ * omp-low.c (lower_omp_target): Mark data clauses with
+ GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
+ zero-length subarrays.
+
2016-07-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/71881
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 968d942..bc1e955 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,11 @@
+2016-07-15 Cesar Philippidis <cesar@codesourcery.com>
+
+ * c-parser.c (c_parser_oacc_declare): Don't scan for
+ GOMP_MAP_POINTER.
+ * c-typeck.c (handle_omp_array_sections): Mark data clauses with
+ GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
+ zero-length subarrays.
+
2016-07-15 Jakub Jelinek <jakub@redhat.com>
PR c/71858
diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c
index 8fb4e4d..ef585fb 100644
--- a/gcc/c/c-parser.c
+++ b/gcc/c/c-parser.c
@@ -13664,11 +13664,6 @@ c_parser_oacc_declare (c_parser *parser)
case GOMP_MAP_DEVICE_RESIDENT:
break;
- case GOMP_MAP_POINTER:
- /* Generated by c_finish_omp_clauses from array sections;
- avoid spurious diagnostics. */
- break;
-
case GOMP_MAP_LINK:
if (!global_bindings_p ()
&& (TREE_STATIC (decl)
diff --git a/gcc/c/c-typeck.c b/gcc/c/c-typeck.c
index bafd0d2..0b5ab91 100644
--- a/gcc/c/c-typeck.c
+++ b/gcc/c/c-typeck.c
@@ -12505,6 +12505,10 @@ handle_omp_array_sections (tree c, enum c_omp_region_type ort)
case GOMP_MAP_ALWAYS_TOFROM:
case GOMP_MAP_RELEASE:
case GOMP_MAP_DELETE:
+ case GOMP_MAP_FORCE_TO:
+ case GOMP_MAP_FORCE_FROM:
+ case GOMP_MAP_FORCE_TOFROM:
+ case GOMP_MAP_FORCE_PRESENT:
OMP_CLAUSE_MAP_MAYBE_ZERO_LENGTH_ARRAY_SECTION (c) = 1;
break;
default:
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index f7f7ba3..f85a333 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,11 @@
+2016-07-15 Cesar Philippidis <cesar@codesourcery.com>
+
+ * parser.c (cp_parser_oacc_declare): Don't scan for
+ GOMP_MAP_POINTER.
+ * semantics.c (handle_omp_array_sections): Mark data clauses with
+ GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
+ zero-length subarrays.
+
2016-07-11 Jason Merrill <jason@redhat.com>
* decl.c (store_parm_decls): Remove check for void parm.
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index ef35aa9..3e865b0 100644
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -35258,11 +35258,6 @@ cp_parser_oacc_declare (cp_parser *parser, cp_token *pragma_tok)
case GOMP_MAP_DEVICE_RESIDENT:
break;
- case GOMP_MAP_POINTER:
- /* Generated by c_finish_omp_clauses from array sections;
- avoid spurious diagnostics. */
- break;
-
case GOMP_MAP_LINK:
if (!global_bindings_p ()
&& (TREE_STATIC (decl)
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index d1fb119..615d3ae 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -5002,6 +5002,10 @@ handle_omp_array_sections (tree c, enum c_omp_region_type ort)
case GOMP_MAP_ALWAYS_TOFROM:
case GOMP_MAP_RELEASE:
case GOMP_MAP_DELETE:
+ case GOMP_MAP_FORCE_TO:
+ case GOMP_MAP_FORCE_FROM:
+ case GOMP_MAP_FORCE_TOFROM:
+ case GOMP_MAP_FORCE_PRESENT:
OMP_CLAUSE_MAP_MAYBE_ZERO_LENGTH_ARRAY_SECTION (c) = 1;
break;
default:
diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index ecba096..04509f3 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -16210,6 +16210,10 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
case GOMP_MAP_ALWAYS_FROM:
case GOMP_MAP_ALWAYS_TOFROM:
case GOMP_MAP_RELEASE:
+ case GOMP_MAP_FORCE_TO:
+ case GOMP_MAP_FORCE_FROM:
+ case GOMP_MAP_FORCE_TOFROM:
+ case GOMP_MAP_FORCE_PRESENT:
tkind_zero = GOMP_MAP_ZERO_LEN_ARRAY_SECTION;
break;
case GOMP_MAP_DELETE:
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 35e29c0..e4555ea 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,8 @@
+2016-07-15 Cesar Philippidis <cesar@codesourcery.com>
+
+ * testsuite/libgomp.oacc-c-c++-common/zero_length_subarrays.c: New
+ test.
+
2016-07-03 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/71734
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/zero_length_subarrays.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/zero_length_subarrays.c
new file mode 100644
index 0000000..8954551
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/zero_length_subarrays.c
@@ -0,0 +1,45 @@
+/* Exercise zero-length sub-arrays. */
+
+const int n = 10;
+
+void
+subzero_present (int *a, int n)
+{
+#pragma acc data present (a[0:n])
+ ;
+#pragma acc data pcopy (a[0:n])
+ ;
+#pragma acc data pcopyin (a[0:n])
+ ;
+#pragma acc data pcopyout (a[0:n])
+ ;
+
+}
+
+void
+subzero (int *a, int n)
+{
+#pragma acc data create (a[0:n])
+ ;
+#pragma acc data copy (a[0:n])
+ ;
+#pragma acc data copyin (a[0:n])
+ ;
+#pragma acc data copyout (a[0:n])
+ ;
+}
+
+int
+main ()
+{
+ int a[n];
+
+#pragma acc data copy (a[0:n])
+ {
+ subzero_present (a, 0);
+ }
+
+ subzero (a, 0);
+
+ return 0;
+}
generated by cgit v1.1 at 2024-08-22 22:09:45 +0000