* function.c (reference_callee_copied): New.

        (assign_parm_setup_reg): Use it.
        * calls.c (initialize_argument_information): Likewise.
        (emit_library_call_value_1): Likewise.
        * function.h (reference_callee_copied): Declare.

        * target.h (struct gcc_target): Add callee_copies.
        * target-def.h (TARGET_CALLEE_COPIES): New.
        (TARGET_PASS_BY_REFERENCE): Update default.
        * expr.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * targhooks.c (hook_callee_copies_named): New.
        (hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false): Rename from
        hook_pass_by_reference_false.
        (hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true): New.
        * targhooks.h: Update decls.
        * config/arc/arc.c (TARGET_CALLEE_COPIES): New.
        * config/arc/arc.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/frv/frv-protos.h (frv_function_arg_callee_copies): Remove.
        * config/frv/frv.c (frv_function_arg_callee_copies): Remove.
        * config/frv/frv.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/iq2000/iq2000.c (TARGET_CALLEE_COPIES): New.
        * config/iq2000/iq2000.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/m68hc11/m68hc11.c (TARGET_CALLEE_COPIES): New.
        * config/m68hc11/m68hc11.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/mips/mips.c (TARGET_CALLEE_COPIES): New.
        (mips_callee_copies): New.
        * config/mips/mips.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/mmix/mmix.c (TARGET_CALLEE_COPIES): New.
        * config/mmix/mmix.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/mn10300/mn10300.c (TARGET_CALLEE_COPIES): New.
        * config/mn10300/mn10300.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/pa/pa.c (TARGET_CALLEE_COPIES): New.
        * config/pa/pa.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/sh/sh.c (sh_callee_copies): New.
        (TARGET_CALLEE_COPIES): New.
        * config/sh/sh.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * config/v850/v850.c (TARGET_CALLEE_COPIES): New.
        * config/v850/v850.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
        * doc/tm.texi (TARGET_CALLEE_COPIES): Replace documentation
        for FUNCTION_ARG_CALLEE_COPIES.
        * doc/rtl.texi (CALL_INSN_FUNCTION_USAGE): Update.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87195 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 28 insertions, 11 deletions

diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index 5ecb6d8370d..042c83efb4c 100644
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -184,17 +184,6 @@ default_cxx_get_cookie_size (tree type)
   return cookie_size;
 }
 
-/* This version of the TARGET_PASS_BY_REFERENCE hook adds no conditions
-   beyond those mandated by generic code.  */
-
-bool
-hook_pass_by_reference_false (CUMULATIVE_ARGS *c ATTRIBUTE_UNUSED,
-	enum machine_mode mode ATTRIBUTE_UNUSED, tree type ATTRIBUTE_UNUSED,
-	bool named_arg ATTRIBUTE_UNUSED)
-{
-  return false;
-}
-
 /* Return true if a parameter must be passed by reference.  This version
    of the TARGET_PASS_BY_REFERENCE hook uses just MUST_PASS_IN_STACK.  */
 
@@ -206,6 +195,16 @@ hook_pass_by_reference_must_pass_in_stack (CUMULATIVE_ARGS *c ATTRIBUTE_UNUSED,
   return targetm.calls.must_pass_in_stack (mode, type);
 }
 
+/* Return true if a parameter follows callee copies conventions.  This
+   version of the hook is true for all named arguments.  */
+
+bool
+hook_callee_copies_named (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+			  enum machine_mode mode ATTRIBUTE_UNUSED,
+			  tree type ATTRIBUTE_UNUSED, bool named)
+{
+  return named;
+}
 
 /* Emit any directives required to unwind this instruction.  */
 
@@ -262,3 +261,21 @@ default_scalar_mode_supported_p (enum machine_mode mode)
       abort ();
     }
 }
+
+bool
+hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false (
+	CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+	enum machine_mode mode ATTRIBUTE_UNUSED,
+	tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true (
+	CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED,
+	enum machine_mode mode ATTRIBUTE_UNUSED,
+	tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED)
+{
+  return true;
+}