PR opt/15108

        * tree-tailcall.c (find_tail_calls): Don't check early for
        tail_recursion failure.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@82866 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 5 deletions

diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c
index 5027c2b6f41..47d707682b3 100644
--- a/gcc/tree-tailcall.c
+++ b/gcc/tree-tailcall.c
@@ -460,11 +460,6 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
       if (TREE_CODE (stmt) != MODIFY_EXPR)
 	return;
 
-      /* Unless this is a tail recursive call, we cannot do anything with
-	 the statement anyway.  */
-      if (!tail_recursion)
-	return;
-
       if (!process_assignment (stmt, stmt, bsi, &m, &a, &ass_var))
 	return;
     }
@@ -491,6 +486,11 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
       && (ret_var != ass_var))
     return;
 
+  /* If this is not a tail recursive call, we cannot handle addends or
+     multiplicands.  */
+  if (!tail_recursion && (m || a))
+    return;
+
   nw = xmalloc (sizeof (struct tailcall));
 
   nw->call_block = bb;