X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Ftree.c;h=3c456a2f409f9473210db7ae67b2e61d010bf287;hp=9dbd08450cdc630a415e14dedb390afd7185406f;hb=27a27622b41f394a00652df420d7b7fffc9fcddb;hpb=d3c2c54ed466a4b352694c728b419d8ec10133bb

diff --git a/gcc/tree.c b/gcc/tree.c
index 9dbd08450cd..3c456a2f409 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -9083,10 +9083,13 @@ build_common_builtin_nodes (void)
       tmp = tree_cons (NULL_TREE, size_type_node, void_list_node);
       ftype = build_function_type (ptr_type_node, tmp);
       local_define_builtin ("__builtin_alloca", ftype, BUILT_IN_ALLOCA,
-			    "alloca",
-			    ECF_MALLOC | (flag_stack_check ? 0 : ECF_NOTHROW));
+			    "alloca", ECF_MALLOC | ECF_NOTHROW);
     }
 
+  /* If we're checking the stack, `alloca' can throw.  */
+  if (flag_stack_check)
+    TREE_NOTHROW (built_in_decls[BUILT_IN_ALLOCA]) = 0;
+
   tmp = tree_cons (NULL_TREE, ptr_type_node, void_list_node);
   tmp = tree_cons (NULL_TREE, ptr_type_node, tmp);
   tmp = tree_cons (NULL_TREE, ptr_type_node, tmp);