X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ftree-stdarg.c;h=9b7a126b1ef4bc8e2b2319d1b98d4777eb571f87;hb=176ff0f9a1016553978d6cf41770703e2ad90958;hp=46fc339a55a62f9aae228fd5df68621ba07b0870;hpb=de508de3aa579410056530a92de76d4df94a62d6;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/tree-stdarg.c b/gcc/tree-stdarg.c
index 46fc339a55a..9b7a126b1ef 100644
--- a/gcc/tree-stdarg.c
+++ b/gcc/tree-stdarg.c
@@ -1,5 +1,5 @@
 /* Pass computing data for optimizing stdarg functions.
-   Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010
+   Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
    Contributed by Jakub Jelinek <jakub@redhat.com>
 
@@ -847,8 +847,12 @@ execute_optimize_stdarg (void)
 		  if (get_gimple_rhs_class (gimple_assign_rhs_code (stmt))
 		      == GIMPLE_SINGLE_RHS)
 		    {
+		      /* Check for ap ={v} {}.  */
+		      if (TREE_CLOBBER_P (rhs))
+			continue;
+
 		      /* Check for tem = ap.  */
-		      if (va_list_ptr_read (&si, rhs, lhs))
+		      else if (va_list_ptr_read (&si, rhs, lhs))
 			continue;
 
 		      /* Check for the last insn in:
@@ -872,8 +876,12 @@ execute_optimize_stdarg (void)
 		  if (get_gimple_rhs_class (gimple_assign_rhs_code (stmt))
 		      == GIMPLE_SINGLE_RHS)
 		    {
+		      /* Check for ap ={v} {}.  */
+		      if (TREE_CLOBBER_P (rhs))
+			continue;
+
 		      /* Check for ap[0].field = temp.  */
-		      if (va_list_counter_struct_op (&si, lhs, rhs, true))
+		      else if (va_list_counter_struct_op (&si, lhs, rhs, true))
 			continue;
 
 		      /* Check for temp = ap[0].field.  */
@@ -963,6 +971,6 @@ struct gimple_opt_pass pass_stdarg =
   0,					/* properties_provided */
   0,					/* properties_destroyed */
   0,					/* todo_flags_start */
-  TODO_dump_func			/* todo_flags_finish */
+  0             			/* todo_flags_finish */
  }
 };