re PR sanitizer/80659 (-fsanitize=address evokes ICE in in gimplify_switch_expr)

	PR sanitizer/80659
	* c-decl.c (build_compound_literal): Set DECL_ARTIFICIAL and
	DECL_IGNORED_P even for non-static compound literals.

	* gcc.dg/asan/pr80659.c: New test.

From-SVN: r248143

gcc/c/ChangeLog

+2017-05-17  Marek Polacek  <polacek@redhat.com>
+
+	PR sanitizer/80659
+	* c-decl.c (build_compound_literal): Set DECL_ARTIFICIAL and
+	DECL_IGNORED_P even for non-static compound literals.
+
 2017-05-17  Martin Liska  <mliska@suse.cz>
 
 	* c-decl.c (c_parse_final_cleanups): Introduce dump_flags_t type and

gcc/c/c-decl.c

@@ -5261,6 +5261,8 @@ build_compound_literal (location_t loc, tree type, tree init, bool non_const)
   DECL_CONTEXT (decl) = current_function_decl;
   TREE_USED (decl) = 1;
   DECL_READ_P (decl) = 1;
+  DECL_ARTIFICIAL (decl) = 1;
+  DECL_IGNORED_P (decl) = 1;
   TREE_TYPE (decl) = type;
   TREE_READONLY (decl) = (TYPE_READONLY (type)
 			  || (TREE_CODE (type) == ARRAY_TYPE
@@ -5297,8 +5299,6 @@ build_compound_literal (location_t loc, tree type, tree init, bool non_const)
       set_compound_literal_name (decl);
       DECL_DEFER_OUTPUT (decl) = 1;
       DECL_COMDAT (decl) = 1;
-      DECL_ARTIFICIAL (decl) = 1;
-      DECL_IGNORED_P (decl) = 1;
       pushdecl (decl);
       rest_of_decl_compilation (decl, 1, 0);
     }

gcc/testsuite/ChangeLog

+2017-05-17  Marek Polacek  <polacek@redhat.com>
+
+	PR sanitizer/80659
+	* gcc.dg/asan/pr80659.c: New test.
+
 2017-05-17  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>
 
 	* gcc.dg/tree-ssa/pr78886.c: Use __SIZE_TYPE__ instead of

gcc/testsuite/gcc.dg/asan/pr80659.c

+/* PR sanitizer/80659 */
+/* { dg-do compile } */
+
+void
+foo (int a)
+{
+  switch (a)
+    {
+    case 0:
+      (int[3]) { };
+      int h;
+    }
+}