Hello.
This patch removes obsolete FUNCTION_VALUE, LIBCALL_VALUE and
FUNCTION_VALUE_REGNO_P macros from H8300 back end in the GCC and introduces
equivalent TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE and
TARGET_FUNCTION_VALUE_REGNO_P target hooks.
Regression tested on h8300-unknown-elf with no new failure.
OK to install?
* config/h8300/h8300.h (FUNCTION_VALUE_REGNO_P, FUNCTION_VALUE,
LIBCALL_VALUE): Remove macros.
* config/h8300/h8300.c (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE,
TARGET_FUNCTION_VALUE_REGNO_P): Define.
(h8300_function_value, h8300_libcall_value,
h8300_function_value_regno_p): New functions
Index: gcc/config/h8300/h8300.c
===
--- gcc/config/h8300/h8300.c(revision 171345)
+++ gcc/config/h8300/h8300.c(working copy)
@@ -5860,6 +5860,38 @@
set_optab_libfunc (umod_optab, HImode, __umodhi3);
}
+/* Worker function for TARGET_FUNCTION_VALUE.
+
+ On the H8 the return value is in R0/R1. */
+
+static rtx
+h8300_function_value (const_tree ret_type,
+ const_tree fn_decl_or_type ATTRIBUTE_UNUSED,
+ bool outgoing ATTRIBUTE_UNUSED)
+{
+ return gen_rtx_REG (TYPE_MODE (ret_type), R0_REG);
+}
+
+/* Worker function for TARGET_LIBCALL_VALUE.
+
+ On the H8 the return value is in R0/R1. */
+
+static rtx
+h8300_libcall_value (enum machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED)
+{
+ return gen_rtx_REG (mode, R0_REG);
+}
+
+/* Worker function for TARGET_FUNCTION_VALUE_REGNO_P.
+
+ On the H8, R0 is the only register thus used. */
+
+static bool
+h8300_function_value_regno_p (const unsigned int regno)
+{
+ return (regno == R0_REG);
+}
+
/* Worker function for TARGET_RETURN_IN_MEMORY. */
static bool
@@ -5946,6 +5978,15 @@
#undef TARGET_INIT_LIBFUNCS
#define TARGET_INIT_LIBFUNCS h8300_init_libfuncs
+#undef TARGET_FUNCTION_VALUE
+#define TARGET_FUNCTION_VALUE h8300_function_value
+
+#undef TARGET_LIBCALL_VALUE
+#define TARGET_LIBCALL_VALUE h8300_libcall_value
+
+#undef TARGET_FUNCTION_VALUE_REGNO_P
+#define TARGET_FUNCTION_VALUE_REGNO_P h8300_function_value_regno_p
+
#undef TARGET_RETURN_IN_MEMORY
#define TARGET_RETURN_IN_MEMORY h8300_return_in_memory
Index: gcc/config/h8300/h8300.h
===
--- gcc/config/h8300/h8300.h(revision 171345)
+++ gcc/config/h8300/h8300.h(working copy)
@@ -527,29 +527,6 @@
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
((OFFSET) = h8300_initial_elimination_offset ((FROM), (TO)))
-/* Define how to find the value returned by a function.
- VALTYPE is the data type of the value (as a tree).
- If the precise function being called is known, FUNC is its FUNCTION_DECL;
- otherwise, FUNC is 0.
-
- On the H8 the return value is in R0/R1. */
-
-#define FUNCTION_VALUE(VALTYPE, FUNC) \
- gen_rtx_REG (TYPE_MODE (VALTYPE), R0_REG)
-
-/* Define how to find the value returned by a library function
- assuming the value has mode MODE. */
-
-/* On the H8 the return value is in R0/R1. */
-
-#define LIBCALL_VALUE(MODE) \
- gen_rtx_REG (MODE, R0_REG)
-
-/* 1 if N is a possible register number for a function value.
- On the H8, R0 is the only register thus used. */
-
-#define FUNCTION_VALUE_REGNO_P(N) ((N) == R0_REG)
-
/* Define this if PCC uses the nonreentrant convention for returning
structure and union values. */
Anatoly.
