* gimplify.c (gimplify_adjust_omp_clauses_1): Handle

	GOVD_FIRSTPRIVATE | GOVD_LASTPRIVATE.
	(gimplify_adjust_omp_clauses): Simd region is never
	directly nested in combined parallel.  Instead, for linear
	with copyin/copyout, if in combined for simd loop, make decl
	firstprivate/lastprivate on OMP_FOR.
	* omp-low.c (expand_omp_for_generic, expand_omp_for_static_nochunk,
	expand_omp_for_static_chunk): When setting endvar, also set
	fd->loop.v to the same value.
libgomp/
	* testsuite/libgomp.c/simd-10.c: New test.
	* testsuite/libgomp.c/simd-11.c: New test.
	* testsuite/libgomp.c/simd-12.c: New test.
	* testsuite/libgomp.c/simd-13.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210009 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 44 insertions, 7 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 738dee31511..95978058013 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,15 @@
+2014-05-02  Jakub Jelinek  <jakub@redhat.com>
+
+	* gimplify.c (gimplify_adjust_omp_clauses_1): Handle
+	GOVD_FIRSTPRIVATE | GOVD_LASTPRIVATE.
+	(gimplify_adjust_omp_clauses): Simd region is never
+	directly nested in combined parallel.  Instead, for linear
+	with copyin/copyout, if in combined for simd loop, make decl
+	firstprivate/lastprivate on OMP_FOR.
+	* omp-low.c (expand_omp_for_generic, expand_omp_for_static_nochunk,
+	expand_omp_for_static_chunk): When setting endvar, also set
+	fd->loop.v to the same value.
+
 2014-05-02  Richard Sandiford  <rsandifo@linux.vnet.ibm.com>
 
 	* hwint.h (zext_hwi): Fix signed overflow for prec == 63.
diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index 008a2528644..37c3778624f 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -6273,9 +6273,17 @@ gimplify_adjust_omp_clauses_1 (splay_tree_node n, void *data)
 	  OMP_CLAUSE_CHAIN (clause) = nc;
 	}
     }
+  if (code == OMP_CLAUSE_FIRSTPRIVATE && (flags & GOVD_LASTPRIVATE) != 0)
+    {
+      tree nc = build_omp_clause (input_location, OMP_CLAUSE_LASTPRIVATE);
+      OMP_CLAUSE_DECL (nc) = decl;
+      OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (nc) = 1;
+      OMP_CLAUSE_CHAIN (nc) = *list_p;
+      OMP_CLAUSE_CHAIN (clause) = nc;
+      lang_hooks.decls.omp_finish_clause (nc);
+    }
   *list_p = clause;
   lang_hooks.decls.omp_finish_clause (clause);
-
   return 0;
 }
 
@@ -6314,18 +6322,17 @@ gimplify_adjust_omp_clauses (tree *list_p)
 	      if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR
 		  && ctx->outer_context
 		  && !(OMP_CLAUSE_LINEAR_NO_COPYIN (c)
-		       && OMP_CLAUSE_LINEAR_NO_COPYOUT (c))
-		  && !is_global_var (decl))
+		       && OMP_CLAUSE_LINEAR_NO_COPYOUT (c)))
 		{
-		  if (ctx->outer_context->region_type == ORT_COMBINED_PARALLEL)
+		  if (ctx->outer_context->combined_loop
+		      && !OMP_CLAUSE_LINEAR_NO_COPYIN (c))
 		    {
 		      n = splay_tree_lookup (ctx->outer_context->variables,
 					     (splay_tree_key) decl);
 		      if (n == NULL
 			  || (n->value & GOVD_DATA_SHARE_CLASS) == 0)
 			{
-			  int flags = OMP_CLAUSE_LINEAR_NO_COPYIN (c)
-				      ? GOVD_LASTPRIVATE : GOVD_SHARED;
+			  int flags = GOVD_FIRSTPRIVATE | GOVD_LASTPRIVATE;
 			  if (n == NULL)
 			    omp_add_variable (ctx->outer_context, decl,
 					      flags | GOVD_SEEN);
@@ -6333,7 +6340,7 @@ gimplify_adjust_omp_clauses (tree *list_p)
 			    n->value |= flags | GOVD_SEEN;
 			}
 		    }
-		  else
+		  else if (!is_global_var (decl))
 		    omp_notice_variable (ctx->outer_context, decl, true);
 		}
 	    }
diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index 28b2c6aea8c..453bd294fd4 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -5584,6 +5584,12 @@ expand_omp_for_generic (struct omp_region *region,
     {
       stmt = gimple_build_assign (endvar, iend);
       gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+      if (useless_type_conversion_p (TREE_TYPE (fd->loop.v), TREE_TYPE (iend)))
+	stmt = gimple_build_assign (fd->loop.v, iend);
+      else
+	stmt = gimple_build_assign_with_ops (NOP_EXPR, fd->loop.v, iend,
+					     NULL_TREE);
+      gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
     }
   if (fd->collapse > 1)
     expand_omp_for_init_vars (fd, &gsi, counts, inner_stmt, startvar);
@@ -6000,6 +6006,12 @@ expand_omp_for_static_nochunk (struct omp_region *region,
     {
       stmt = gimple_build_assign (endvar, e);
       gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
+      if (useless_type_conversion_p (TREE_TYPE (fd->loop.v), TREE_TYPE (e)))
+	stmt = gimple_build_assign (fd->loop.v, e);
+      else
+	stmt = gimple_build_assign_with_ops (NOP_EXPR, fd->loop.v, e,
+					     NULL_TREE);
+      gsi_insert_after (&gsi, stmt, GSI_CONTINUE_LINKING);
     }
   if (fd->collapse > 1)
     expand_omp_for_init_vars (fd, &gsi, counts, inner_stmt, startvar);
@@ -6385,6 +6397,12 @@ expand_omp_for_static_chunk (struct omp_region *region,
     {
       stmt = gimple_build_assign (endvar, e);
       gsi_insert_after (&si, stmt, GSI_CONTINUE_LINKING);
+      if (useless_type_conversion_p (TREE_TYPE (fd->loop.v), TREE_TYPE (e)))
+	stmt = gimple_build_assign (fd->loop.v, e);
+      else
+	stmt = gimple_build_assign_with_ops (NOP_EXPR, fd->loop.v, e,
+					     NULL_TREE);
+      gsi_insert_after (&si, stmt, GSI_CONTINUE_LINKING);
     }
   if (fd->collapse > 1)
     expand_omp_for_init_vars (fd, &si, counts, inner_stmt, startvar);