/* Definitions of target machine for GNU compiler. "embedded" 68XXX.
This is meant to be included after m68k.h.
- Copyright (C) 1994, 1995, 1998, 1999 Free Software Foundation, Inc. */
+ Copyright (C) 1994-2024 Free Software Foundation, Inc. */
/* Override the SVR4 ABI for this target. */
so we define PCC_BITFIELD_TYPE_MATTERS. */
#define PCC_BITFIELD_TYPE_MATTERS 1
-/* Undef PCC_STATIC_STRUCT_RETURN so that we get a re-entrant calling
- convention. */
-#undef PCC_STATIC_STRUCT_RETURN
-
/* Don't default to pcc-struct-return, so that we can return small structures
and unions in registers, which is slightly more efficient. */
#define DEFAULT_PCC_STRUCT_RETURN 0
-/* Return floating point values in a fp register. This make fp code a
- little bit faster. It also makes -msoft-float code incompatible with
- -m68881 code, so people have to be careful not to mix the two. */
#undef FUNCTION_VALUE
#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
#undef LIBCALL_VALUE
#define LIBCALL_VALUE(MODE) \
- gen_rtx_REG ((MODE), \
- ((TARGET_68881 \
- && ((MODE) == SFmode || (MODE) == DFmode \
- || (MODE) == XFmode)) \
- ? 16 : 0))
+ m68k_libcall_value (MODE)
#undef FUNCTION_VALUE_REGNO_P
-#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (TARGET_68881 && (N) == 16))
+#define FUNCTION_VALUE_REGNO_P(N) \
+ ((N) == D0_REG || (TARGET_68881 && (N) == FP0_REG))
#undef NEEDS_UNTYPED_CALL
#define NEEDS_UNTYPED_CALL 1
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
- builtin_define_std ("mc68000"); \
- builtin_define ("__embedded__"); \
- } \
+ builtin_define ("__embedded__"); \
+ } \
while (0)
-/* Override the default LIB_SPEC from gcc.c. We don't currently support
+/* Override the default LIB_SPEC from gcc.cc. We don't currently support
profiling, or libg.a. */
#undef LIB_SPEC