* tree-inline.c (estimate_num_insns_1): Use declaration to discover argument

	types where possible.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@97132 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 3 deletions

diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 6f46eed8c36..0b38f08724c 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -1403,9 +1403,18 @@ estimate_num_insns_1 (tree *tp, int *walk_subtrees, void *data)
 	      break;
 	    }
 
-	arg = TREE_OPERAND (x, 1);
-	for (arg = TREE_OPERAND (x, 1); arg; arg = TREE_CHAIN (arg))
-	  *count += estimate_move_cost (TREE_TYPE (TREE_VALUE (arg)));
+	/* Our cost must be kept in sync with cgraph_estimate_size_after_inlining
+	   that does use function declaration to figure out the arguments.  */
+	if (!decl)
+	  {
+	    for (arg = TREE_OPERAND (x, 1); arg; arg = TREE_CHAIN (arg))
+	      *count += estimate_move_cost (TREE_TYPE (TREE_VALUE (arg)));
+	  }
+	else
+	  {
+	    for (arg = DECL_ARGUMENTS (decl); arg; arg = TREE_CHAIN (arg))
+	      *count += estimate_move_cost (TREE_TYPE (arg));
+	  }
 
 	*count += PARAM_VALUE (PARAM_INLINE_CALL_COST);
 	break;