omp-low.c (lookup_decl_in_outer_ctx): Allow calling this with !ctx->is_nested.

* omp-low.c (lookup_decl_in_outer_ctx): Allow calling this
	with !ctx->is_nested.
	(maybe_lookup_decl_in_outer_ctx): Look up in outer contexts
	even if !ctx->is_nested.
	(lower_copyprivate_clauses, lower_send_clauses,
	lower_send_shared_vars): Call lookup_decl_in_outer_ctx
	unconditionally.

	* testsuite/libgomp.c/private-1.c: New test.

From-SVN: r130590

gcc/ChangeLog

@@ -1,5 +1,13 @@
 2007-12-03  Jakub Jelinek  <jakub@redhat.com>
 
+	* omp-low.c (lookup_decl_in_outer_ctx): Allow calling this
+	with !ctx->is_nested.
+	(maybe_lookup_decl_in_outer_ctx): Look up in outer contexts
+	even if !ctx->is_nested.
+	(lower_copyprivate_clauses, lower_send_clauses,
+	lower_send_shared_vars): Call lookup_decl_in_outer_ctx
+	unconditionally.
+
 	PR middle-end/29749
 	* fold-const.c (fold_binary) <case BIT_AND_EXPR>: Optimize
 	(X << C1) & C2 into (X << C1) & (C2 | ((1 << C1) - 1))

gcc/omp-low.c

@@ -1518,12 +1518,10 @@ lookup_decl_in_outer_ctx (tree decl, omp_context *ctx)
   tree t;
   omp_context *up;
 
-  gcc_assert (ctx->is_nested);
-
   for (up = ctx->outer, t = NULL; up && t == NULL; up = up->outer)
     t = maybe_lookup_decl (decl, up);
 
-  gcc_assert (t || is_global_var (decl));
+  gcc_assert (!ctx->is_nested || t || is_global_var (decl));
 
   return t ? t : decl;
 }
@@ -1538,7 +1536,6 @@ maybe_lookup_decl_in_outer_ctx (tree decl, omp_context *ctx)
   tree t = NULL;
   omp_context *up;
 
-  if (ctx->is_nested)
   for (up = ctx->outer, t = NULL; up && t == NULL; up = up->outer)
     t = maybe_lookup_decl (decl, up);
 
@@ -2012,7 +2009,7 @@ lower_copyprivate_clauses (tree clauses, tree *slist, tree *rlist,
       by_ref = use_pointer_for_field (var, false);
 
       ref = build_sender_ref (var, ctx);
-      x = (ctx->is_nested) ? lookup_decl_in_outer_ctx (var, ctx) : var;
+      x = lookup_decl_in_outer_ctx (var, ctx);
       x = by_ref ? build_fold_addr_expr (x) : x;
       x = build_gimple_modify_stmt (ref, x);
       gimplify_and_add (x, slist);
@@ -2053,8 +2050,7 @@ lower_send_clauses (tree clauses, tree *ilist, tree *olist, omp_context *ctx)
 	  continue;
 	}
 
-      var = val = OMP_CLAUSE_DECL (c);
+      val = OMP_CLAUSE_DECL (c);
-      if (ctx->is_nested)
       var = lookup_decl_in_outer_ctx (val, ctx);
 
       if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_COPYIN
@@ -2127,12 +2123,9 @@ lower_send_shared_vars (tree *ilist, tree *olist, omp_context *ctx)
       if (!nvar || !DECL_HAS_VALUE_EXPR_P (nvar))
 	continue;
 
-      var = ovar;
-
       /* If CTX is a nested parallel directive.  Find the immediately
 	 enclosing parallel or workshare construct that contains a
 	 mapping for OVAR.  */
-      if (ctx->is_nested)
       var = lookup_decl_in_outer_ctx (ovar, ctx);
 
       if (use_pointer_for_field (ovar, true))

libgomp/ChangeLog

@@ -1,3 +1,7 @@
+2007-12-03  Jakub Jelinek  <jakub@redhat.com>
+
+	* testsuite/libgomp.c/private-1.c: New test.
+
 2007-11-29  Andris Pavenis <andris.pavenis@iki.fi>
 	    Paolo Bonzini  <bonzini@gnu.org>
 

libgomp/testsuite/libgomp.c/private-1.c

@@ -0,0 +1,54 @@
+extern void abort (void);
+
+int a = 18;
+
+void
+f1 (int i, int j, int k)
+{
+  int l = 6, m = 7, n = 8;
+#pragma omp parallel private(j, m) shared(k, n) firstprivate(i, l) \
+	    num_threads(1)
+  {
+    j = 6;
+    m = 5;
+    if (++a != 19 || ++i != 9 || j != 6 || ++l != 7 || m != 5 || ++n != 9)
+      #pragma omp atomic
+	k++;
+  }
+  if (a != 19 || i != 8 || j != 26 || k != 0 || l != 6 || m != 7 || n != 9)
+    abort ();
+}
+
+int v1 = 1, v2 = 2, v5 = 5;
+int err;
+
+void
+f2 (void)
+{
+  int v3 = 3;
+#pragma omp sections private (v1) firstprivate (v2)
+  {
+  #pragma omp section
+    {
+      int v4 = 4;
+      v1 = 7;
+      #pragma omp parallel num_threads(1) firstprivate(v1, v2, v3, v4)
+	{
+	  if (++v1 != 8 || ++v2 != 3 || ++v3 != 4 || ++v4 != 5 || ++v5 != 6)
+	    err = 1;
+	}
+      if (v1 != 7 || v2 != 2 || v3 != 3 || v4 != 4 || v5 != 6)
+	abort ();
+      if (err)
+	abort ();
+    }
+  }
+}
+
+int
+main (void)
+{
+  f1 (8, 26, 0);
+  f2 ();
+  return 0;
+}