1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/target.h b/gcc/target.h
index befe67bf906..2c38dc5dcc6 100644
--- a/gcc/target.h
+++ b/gcc/target.h
@@ -462,6 +462,12 @@ struct gcc_target
     /* Given a complex type T, return true if a parameter of type T
        should be passed as two scalars.  */
     bool (* split_complex_arg) (tree type);
+
+    /* Return true if type T, mode MODE, may not be passed in registers,
+       but must be passed on the stack.  */
+    /* ??? This predicate should be applied strictly after pass-by-reference.
+       Need audit to verify that this is the case.  */
+    bool (* must_pass_in_stack) (enum machine_mode mode, tree t);
   } calls;
 
   /* Functions specific to the C++ frontend.  */