gcc/

	* tree.h (set_decl_incoming_rtl): Add a by_reference_p parameter.
	* emit-rtl.c (set_decl_incoming_rtl): Likewise.  Don't set the
	rtl's register attributes when the parameter is true.
	* function.c (assign_parms_unsplit_complex, assign_parms)
	(expand_function_start): Update calls to set_decl_incoming_rtl.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@131056 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 3 deletions

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index ae8970ce25c..5a2aede40dd 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -1045,13 +1045,14 @@ set_decl_rtl (tree t, rtx x)
     set_reg_attrs_for_decl_rtl (t, x);
 }
 
-/* Assign the RTX X to parameter declaration T.  */
+/* Assign the RTX X to parameter declaration T.  BY_REFERENCE_P is true
+   if the ABI requires the parameter to be passed by reference.  */
 
 void
-set_decl_incoming_rtl (tree t, rtx x)
+set_decl_incoming_rtl (tree t, rtx x, bool by_reference_p)
 {
   DECL_INCOMING_RTL (t) = x;
-  if (x)
+  if (x && !by_reference_p)
     set_reg_attrs_for_decl_rtl (t, x);
 }