re PR fortran/85313 (gcc/fortran/openmp.c: 2 * confused logic ?)

	PR fortran/85313
	* openmp.c (resolve_omp_do): Remove bogus if (j < i) break;.
	(resolve_oacc_nested_loops): Likewise.  Formatting fix.

	* gfortran.dg/gomp/pr85313.f90: New test.

From-SVN: r259275

gcc/fortran/ChangeLog

+2018-04-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR fortran/85313
+	* openmp.c (resolve_omp_do): Remove bogus if (j < i) break;.
+	(resolve_oacc_nested_loops): Likewise.  Formatting fix.
+
 2018-04-09  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/83064

gcc/fortran/openmp.c

@@ -5600,8 +5600,6 @@ resolve_omp_do (gfc_code *code)
 			     "iteration space at %L", name, &do_code->loc);
 		  break;
 		}
-	      if (j < i)
-		break;
 	      do_code2 = do_code2->block->next;
 	    }
 	}
@@ -5765,12 +5763,10 @@ resolve_oacc_nested_loops (gfc_code *code, gfc_code* do_code, int collapse,
 		  || gfc_find_sym_in_expr (ivar, do_code->ext.iterator->end)
 		  || gfc_find_sym_in_expr (ivar, do_code->ext.iterator->step))
 		{
-		  gfc_error ("!$ACC LOOP %s loops don't form rectangular iteration space at %L",
-			     clause, &do_code->loc);
+		  gfc_error ("!$ACC LOOP %s loops don't form rectangular "
+			     "iteration space at %L", clause, &do_code->loc);
 		  break;
 		}
-	      if (j < i)
-		break;
 	      do_code2 = do_code2->block->next;
 	    }
 	}

gcc/testsuite/ChangeLog

+2018-04-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR fortran/85313
+	* gfortran.dg/gomp/pr85313.f90: New test.
+
 2018-04-10  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/24314

gcc/testsuite/gfortran.dg/gomp/pr85313.f90

+! PR fortran/85313
+! { dg-do compile }
+
+!$omp do collapse(3)
+  do i = 1, 10
+    do j = i, 20	! { dg-error "form rectangular iteration space" }
+      do k = 1, 2
+      end do
+    end do
+  end do
+!$omp do collapse(3)
+  do i = 1, 10
+    do j = 1, 5
+      do k = i, 20	! { dg-error "form rectangular iteration space" }
+      end do
+    end do
+  end do
+!$omp do collapse(3)
+  do i = 1, 10
+    do j = 1, 5
+      do k = j, 20	! { dg-error "form rectangular iteration space" }
+      end do
+    end do
+  end do
+end