haifa-sched.c (init_before_recovery): Do not set EDGE_CAN_FALLTHRU.

	* haifa-sched.c (init_before_recovery): Do not set EDGE_CAN_FALLTHRU.
	* cfgrtl.c (force_nonfallthru_and_redirect): Likewise.

From-SVN: r189523

gcc/ChangeLog

 2012-07-16  Steven Bosscher  <steven@gcc.gnu.org>
 
+	* haifa-sched.c (init_before_recovery): Do not set EDGE_CAN_FALLTHRU.
+	* cfgrtl.c (force_nonfallthru_and_redirect): Likewise.
+
+	* function.c (stack_protect_epilogue): Use expand_call to expand
+	targetm.stack_protect_fail.
+	* stmt.c (expand_expr_stmt): Remove now-unused function.
+	* tree.h (expand_expr_stmt): Remove prototype.
+	* doc/tm.texi.in (TARGET_STACK_PROTECT_FAIL): Document that this
+	hook must return a CALL_EXPR.
+	* doc/tm.texi: Regenerate.
+
 	* emit-rtl.c (emit_label_before): Do not allow the same label
         to be emitted twice.
 	(emit_label_after): Likewise.

gcc/cfgrtl.c

@@ -1365,8 +1365,8 @@ force_nonfallthru_and_redirect (edge e, basic_block target, rtx jump_label)
 	 one and create separate abnormal edge to original destination.
 	 This allows bb-reorder to make such edge non-fallthru.  */
       gcc_assert (e->dest == target);
-      abnormal_edge_flags = e->flags & ~(EDGE_FALLTHRU | EDGE_CAN_FALLTHRU);
-      e->flags &= EDGE_FALLTHRU | EDGE_CAN_FALLTHRU;
+      abnormal_edge_flags = e->flags & ~EDGE_FALLTHRU;
+      e->flags &= EDGE_FALLTHRU;
     }
   else
     {

gcc/haifa-sched.c

@@ -7194,8 +7194,7 @@ init_before_recovery (basic_block *before_recovery_ptr)
 
       redirect_edge_succ (e, single);
       make_single_succ_edge (single, empty, 0);
-      make_single_succ_edge (empty, EXIT_BLOCK_PTR,
-			     EDGE_FALLTHRU | EDGE_CAN_FALLTHRU);
+      make_single_succ_edge (empty, EXIT_BLOCK_PTR, EDGE_FALLTHRU);
 
       label = block_label (empty);
       x = emit_jump_insn_after (gen_jump (label), BB_END (single));