omp-low.c (expand_omp_sections): Always pass len - 1 to GOMP_sections_start,…

omp-low.c (expand_omp_sections): Always pass len - 1 to GOMP_sections_start, even if !exit_reachable.

	* omp-low.c (expand_omp_sections): Always pass len - 1 to
	GOMP_sections_start, even if !exit_reachable.
libgomp/
	* testsuite/libgomp.c/sections-2.c: New test.

From-SVN: r202738

gcc/ChangeLog

+2013-09-19  Jakub Jelinek  <jakub@redhat.com>
+
+	* omp-low.c (expand_omp_sections): Always pass len - 1 to
+	GOMP_sections_start, even if !exit_reachable.
+
 2013-09-18  Vladimir Makarov  <vmakarov@redhat.com>
 
 	* lra-constraints.c (need_for_all_save_p): Use macro

gcc/omp-low.c

@@ -5869,8 +5869,7 @@ expand_omp_sections (struct omp_region *region)
     {
       /* If we are not inside a combined parallel+sections region,
 	 call GOMP_sections_start.  */
-      t = build_int_cst (unsigned_type_node,
-			 exit_reachable ? len - 1 : len);
+      t = build_int_cst (unsigned_type_node, len - 1);
       u = builtin_decl_explicit (BUILT_IN_GOMP_SECTIONS_START);
       stmt = gimple_build_call (u, 1, t);
     }

libgomp/ChangeLog

+2013-09-19  Jakub Jelinek  <jakub@redhat.com>
+
+	* testsuite/libgomp.c/sections-2.c: New test.
+
 2013-06-28  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 
 	* testsuite/libgomp.fortran/strassen.f90:

libgomp/testsuite/libgomp.c/sections-2.c

+/* { dg-do run } */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+__attribute__((noinline, noclone, noreturn))
+void
+foo ()
+{
+  sleep (4);
+  exit (0);
+}
+
+int
+main ()
+{
+  #pragma omp parallel
+  {
+    #pragma omp sections
+      {
+        foo ();
+      #pragma omp section
+        foo ();
+      #pragma omp section
+        foo ();
+      }
+  }
+  return 0;
+}