re PR middle-end/79212 (internal compiler error: in…

re PR middle-end/79212 (internal compiler error: in maybe_lookup_decl_in_outer_ctx, at omp-low.c:4134)

2017-01-26  David Sherwood  <david.sherwood@arm.com>

    gcc/
	PR middle-end/79212
	* gimplify.c (omp_notice_variable): Add GOVD_SEEN flag to variables in
	all contexts.

    gcc/testsuite/
	PR middle-end/79212
	* gfortran.dg/gomp/sharing-4.f90: New test.

From-SVN: r244922

gcc/ChangeLog

+2017-01-26  David Sherwood  <david.sherwood@arm.com>
+
+	PR middle-end/79212
+	* gimplify.c (omp_notice_variable): Add GOVD_SEEN flag to variables in
+	all contexts.
+
 2017-01-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/70465

gcc/gimplify.c

@@ -7152,7 +7152,7 @@ omp_notice_variable (struct gimplify_omp_ctx *ctx, tree decl, bool in_code)
 	  gcc_assert (DECL_P (t));
 	  n2 = splay_tree_lookup (ctx->variables, (splay_tree_key) t);
 	  if (n2)
-	    n2->value |= GOVD_SEEN;
+	    omp_notice_variable (ctx, t, true);
 	}
     }
 

gcc/testsuite/ChangeLog

+2017-01-26  David Sherwood  <david.sherwood@arm.com>
+
+	PR middle-end/79212
+	* gfortran.dg/gomp/sharing-4.f90: New test.
+
 2017-01-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/70465

gcc/testsuite/gfortran.dg/gomp/sharing-4.f90

+! { dg-do compile }
+! { dg-options "-fopenmp" }
+
+subroutine foo (v, n, r)
+  integer :: n
+  integer, intent(in) :: v(:)
+  integer, intent(out) :: r
+  integer :: i
+
+  r = 0
+
+!$omp parallel
+!$omp single
+
+  do i = 1, n
+!$omp task shared (v)
+    r = r + v(i)
+!$omp end task
+  enddo
+
+!$omp end single
+!$omp end parallel
+
+end