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[FR30] Hookize FUNCTION_VALUE, LIBCALL_VALUE and FUNCTION_VALUE_REGNO_P
- From: Anatoly Sokolov <aesok at post dot ru>
- To: gcc-patches <gcc-patches at gcc dot gnu dot org>
- Cc: nickc at redhat dot com
- Date: Fri, 5 Nov 2010 23:23:56 +0300
- Subject: [FR30] Hookize FUNCTION_VALUE, LIBCALL_VALUE and FUNCTION_VALUE_REGNO_P
Hello.
This patch removes obsolete FUNCTION_VALUE, LIBCALL_VALUE and
FUNCTION_VALUE_REGNO_P macros from FR30 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 fr30-unknown-elf with no new failure.
=== gcc Summary ===
# of expected passes 49499
# of unexpected failures 13084
# of unexpected successes 1
# of expected failures 105
# of unresolved testcases 2960
# of unsupported tests 1064
OK to install?
* config/fr30/fr30.h (FUNCTION_VALUE_REGNO_P, FUNCTION_VALUE,
LIBCALL_VALUE): Remove macros.
* config/fr30/fr30.c (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE,
TARGET_FUNCTION_VALUE_REGNO_P): Define.
(fr30_function_value_regno_p, fr30_function_value,
fr30_libcall_value): New functions
Index: gcc/config/fr30/fr30.h
===================================================================
--- gcc/config/fr30/fr30.h (revision 166360)
+++ gcc/config/fr30/fr30.h (working copy)
@@ -588,31 +588,6 @@
((REGNO) >= FIRST_ARG_REGNUM && ((REGNO) < FIRST_ARG_REGNUM + FR30_NUM_ARG_REGS))
/*}}}*/
-/*{{{ How Scalar Function Values are Returned. */
-
-#define FUNCTION_VALUE(VALTYPE, FUNC) \
- gen_rtx_REG (TYPE_MODE (VALTYPE), RETURN_VALUE_REGNUM)
-
-/* A C expression to create an RTX representing the place where a library
- function returns a value of mode MODE. If the precise function being called
- is known, FUNC is a tree node (`FUNCTION_DECL') for it; otherwise, FUNC is a
- null pointer. This makes it possible to use a different value-returning
- convention for specific functions when all their calls are known.
-
- Note that "library function" in this context means a compiler support
- routine, used to perform arithmetic, whose name is known specially by the
- compiler and was not mentioned in the C code being compiled.
-
- The definition of `LIBRARY_VALUE' need not be concerned aggregate data
- types, because none of the library functions returns such types. */
-#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, RETURN_VALUE_REGNUM)
-
-/* A C expression that is nonzero if REGNO is the number of a hard register in
- which the values of called function may come back. */
-
-#define FUNCTION_VALUE_REGNO_P(REGNO) ((REGNO) == RETURN_VALUE_REGNUM)
-
-/*}}}*/
/*{{{ How Large Values are Returned. */
/* Define this macro to be 1 if all structure and union return values must be
Index: gcc/config/fr30/fr30.c
===================================================================
--- gcc/config/fr30/fr30.c (revision 166360)
+++ gcc/config/fr30/fr30.c (working copy)
@@ -124,6 +125,9 @@
static void fr30_function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
const_tree, bool);
static bool fr30_frame_pointer_required (void);
+static rtx fr30_function_value (const_tree, const_tree, bool);
+static rtx fr30_libcall_value (enum machine_mode, const_rtx);
+static bool fr30_function_value_regno_p (const unsigned int);
static bool fr30_can_eliminate (const int, const int);
static void fr30_asm_trampoline_template (FILE *);
static void fr30_trampoline_init (rtx, tree, rtx);
@@ -172,6 +176,13 @@
#undef TARGET_FUNCTION_ARG_ADVANCE
#define TARGET_FUNCTION_ARG_ADVANCE fr30_function_arg_advance
+#undef TARGET_FUNCTION_VALUE
+#define TARGET_FUNCTION_VALUE fr30_function_value
+#undef TARGET_LIBCALL_VALUE
+#define TARGET_LIBCALL_VALUE fr30_libcall_value
+#undef TARGET_FUNCTION_VALUE_REGNO_P
+#define TARGET_FUNCTION_VALUE_REGNO_P fr30_function_value_regno_p
+
#undef TARGET_SETUP_INCOMING_VARARGS
#define TARGET_SETUP_INCOMING_VARARGS fr30_setup_incoming_varargs
#undef TARGET_MUST_PASS_IN_STACK
@@ -703,6 +714,34 @@
}
/*}}}*/
+
+/* Implements TARGET_FUNCTION_VALUE. */
+
+static rtx
+fr30_function_value (const_tree valtype,
+ const_tree fntype_or_decli ATTRIBUTE_UNUSED,
+ bool outgoing ATTRIBUTE_UNUSED)
+{
+ return gen_rtx_REG (TYPE_MODE (valtype), RETURN_VALUE_REGNUM);
+}
+
+/* Implements TARGET_LIBCALL_VALUE. */
+
+static rtx
+fr30_libcall_value (enum machine_mode mode,
+ const_rtx fun ATTRIBUTE_UNUSED)
+{
+ return gen_rtx_REG (mode, RETURN_VALUE_REGNUM);
+}
+
+/* Implements TARGET_FUNCTION_VALUE_REGNO_P. */
+
+static bool
+fr30_function_value_regno_p (const unsigned int regno)
+{
+ return (regno == RETURN_VALUE_REGNUM);
+}
+
/*{{{ Function arguments */
/* Return true if we should pass an argument on the stack rather than
Anatoly.