+#ifndef FRAME_GROWS_DOWNWARD
+#define FRAME_GROWS_DOWNWARD 0
+#endif
+
+/* On most machines, the CFA coincides with the first incoming parm. */
+#ifndef ARG_POINTER_CFA_OFFSET
+#define ARG_POINTER_CFA_OFFSET(FNDECL) \
+ (FIRST_PARM_OFFSET (FNDECL) + crtl->args.pretend_args_size)
+#endif
+
+/* On most machines, we use the CFA as DW_AT_frame_base. */
+#ifndef CFA_FRAME_BASE_OFFSET
+#define CFA_FRAME_BASE_OFFSET(FNDECL) 0
+#endif
+
+/* The offset from the incoming value of %sp to the top of the stack frame
+ for the current function. */
+#ifndef INCOMING_FRAME_SP_OFFSET
+#define INCOMING_FRAME_SP_OFFSET 0
+#endif
+
+#ifndef HARD_REGNO_NREGS_HAS_PADDING
+#define HARD_REGNO_NREGS_HAS_PADDING(REGNO, MODE) 0
+#define HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE) -1
+#endif
+
+#ifndef OUTGOING_REG_PARM_STACK_SPACE
+#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 0
+#endif
+
+/* MAX_STACK_ALIGNMENT is the maximum stack alignment guaranteed by
+ the backend. MAX_SUPPORTED_STACK_ALIGNMENT is the maximum best
+ effort stack alignment supported by the backend. If the backend
+ supports stack alignment, MAX_SUPPORTED_STACK_ALIGNMENT and
+ MAX_STACK_ALIGNMENT are the same. Otherwise, the incoming stack
+ boundary will limit the maximum guaranteed stack alignment. */
+#ifdef MAX_STACK_ALIGNMENT
+#define MAX_SUPPORTED_STACK_ALIGNMENT MAX_STACK_ALIGNMENT
+#else
+#define MAX_STACK_ALIGNMENT STACK_BOUNDARY
+#define MAX_SUPPORTED_STACK_ALIGNMENT PREFERRED_STACK_BOUNDARY
+#endif
+
+#define SUPPORTS_STACK_ALIGNMENT (MAX_STACK_ALIGNMENT > STACK_BOUNDARY)
+
+#ifndef LOCAL_ALIGNMENT
+#define LOCAL_ALIGNMENT(TYPE, ALIGNMENT) ALIGNMENT
+#endif
+
+#ifndef STACK_SLOT_ALIGNMENT
+#define STACK_SLOT_ALIGNMENT(TYPE,MODE,ALIGN) \
+ ((TYPE) ? LOCAL_ALIGNMENT ((TYPE), (ALIGN)) : (ALIGN))
+#endif
+
+#ifndef LOCAL_DECL_ALIGNMENT
+#define LOCAL_DECL_ALIGNMENT(DECL) \
+ LOCAL_ALIGNMENT (TREE_TYPE (DECL), DECL_ALIGN (DECL))
+#endif
+
+#ifndef MINIMUM_ALIGNMENT
+#define MINIMUM_ALIGNMENT(EXP,MODE,ALIGN) (ALIGN)
+#endif
+
+/* Alignment value for attribute ((aligned)). */
+#ifndef ATTRIBUTE_ALIGNED_VALUE
+#define ATTRIBUTE_ALIGNED_VALUE BIGGEST_ALIGNMENT
+#endif
+
+/* Many ports have no mode-dependent addresses (except possibly autoincrement
+ and autodecrement addresses, which are handled by target-independent code
+ in recog.c). */
+#ifndef GO_IF_MODE_DEPENDENT_ADDRESS
+#define GO_IF_MODE_DEPENDENT_ADDRESS(X, WIN)
+#endif
+
+/* For most ports anything that evaluates to a constant symbolic
+ or integer value is acceptable as a constant address. */
+#ifndef CONSTANT_ADDRESS_P
+#define CONSTANT_ADDRESS_P(X) (CONSTANT_P (X) && GET_CODE (X) != CONST_DOUBLE)
+#endif
+
+#ifndef MAX_FIXED_MODE_SIZE
+#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)
+#endif
+
+/* Nonzero if structures and unions should be returned in memory.
+
+ This should only be defined if compatibility with another compiler or
+ with an ABI is needed, because it results in slower code. */
+
+#ifndef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
+#endif
+
+#ifdef GCC_INSN_FLAGS_H
+/* Dependent default target macro definitions
+
+ This section of defaults.h defines target macros that depend on generated
+ headers. This is a bit awkward: We want to put all default definitions
+ for target macros in defaults.h, but some of the defaults depend on the
+ HAVE_* flags defines of insn-flags.h. But insn-flags.h is not always
+ included by files that do include defaults.h.
+
+ Fortunately, the default macro definitions that depend on the HAVE_*
+ macros are also the ones that will only be used inside GCC itself, i.e.
+ not in the gen* programs or in target objects like libgcc.
+
+ Obviously, it would be best to keep this section of defaults.h as small
+ as possible, by converting the macros defined below to target hooks or
+ functions.
+*/
+
+/* The default branch cost is 1. */
+#ifndef BRANCH_COST
+#define BRANCH_COST(speed_p, predictable_p) 1
+#endif
+
+/* If a memory-to-memory move would take MOVE_RATIO or more simple
+ move-instruction sequences, we will do a movmem or libcall instead. */
+
+#ifndef MOVE_RATIO
+#if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti)
+#define MOVE_RATIO(speed) 2
+#else
+/* If we are optimizing for space (-Os), cut down the default move ratio. */
+#define MOVE_RATIO(speed) ((speed) ? 15 : 3)
+#endif
+#endif
+
+/* If a clear memory operation would take CLEAR_RATIO or more simple
+ move-instruction sequences, we will do a setmem or libcall instead. */
+
+#ifndef CLEAR_RATIO
+#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti)
+#define CLEAR_RATIO(speed) 2
+#else
+/* If we are optimizing for space, cut down the default clear ratio. */
+#define CLEAR_RATIO(speed) ((speed) ? 15 :3)
+#endif
+#endif
+
+/* If a memory set (to value other than zero) operation would take
+ SET_RATIO or more simple move-instruction sequences, we will do a movmem
+ or libcall instead. */
+#ifndef SET_RATIO
+#define SET_RATIO(speed) MOVE_RATIO(speed)
+#endif
+
+/* Supply a default definition for FUNCTION_ARG_PADDING:
+ usually pad upward, but pad short args downward on
+ big-endian machines. */
+
+#define DEFAULT_FUNCTION_ARG_PADDING(MODE, TYPE) \
+ (! BYTES_BIG_ENDIAN \
+ ? upward \
+ : (((MODE) == BLKmode \
+ ? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \
+ && int_size_in_bytes (TYPE) < (PARM_BOUNDARY / BITS_PER_UNIT)) \
+ : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \
+ ? downward : upward))
+
+#ifndef FUNCTION_ARG_PADDING
+#define FUNCTION_ARG_PADDING(MODE, TYPE) \
+ DEFAULT_FUNCTION_ARG_PADDING ((MODE), (TYPE))
+#endif
+
+/* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
+ Normally move_insn, so Pmode stack pointer. */
+
+#ifndef STACK_SAVEAREA_MODE
+#define STACK_SAVEAREA_MODE(LEVEL) Pmode
+#endif
+
+/* Supply a default definition of STACK_SIZE_MODE for
+ allocate_dynamic_stack_space. Normally PLUS/MINUS, so word_mode. */
+
+#ifndef STACK_SIZE_MODE
+#define STACK_SIZE_MODE word_mode
+#endif
+
+/* Provide default values for the macros controlling stack checking. */
+
+/* The default is neither full builtin stack checking... */
+#ifndef STACK_CHECK_BUILTIN
+#define STACK_CHECK_BUILTIN 0
+#endif
+
+/* ...nor static builtin stack checking. */
+#ifndef STACK_CHECK_STATIC_BUILTIN
+#define STACK_CHECK_STATIC_BUILTIN 0
+#endif
+
+/* The default interval is one page (4096 bytes). */
+#ifndef STACK_CHECK_PROBE_INTERVAL_EXP
+#define STACK_CHECK_PROBE_INTERVAL_EXP 12
+#endif
+
+/* The default is not to move the stack pointer. */
+#ifndef STACK_CHECK_MOVING_SP
+#define STACK_CHECK_MOVING_SP 0
+#endif
+
+/* This is a kludge to try to capture the discrepancy between the old
+ mechanism (generic stack checking) and the new mechanism (static
+ builtin stack checking). STACK_CHECK_PROTECT needs to be bumped
+ for the latter because part of the protection area is effectively
+ included in STACK_CHECK_MAX_FRAME_SIZE for the former. */
+#ifdef STACK_CHECK_PROTECT
+#define STACK_OLD_CHECK_PROTECT STACK_CHECK_PROTECT
+#else
+#define STACK_OLD_CHECK_PROTECT \
+ (targetm_common.except_unwind_info (&global_options) == UI_SJLJ \
+ ? 75 * UNITS_PER_WORD \
+ : 8 * 1024)
+#endif
+
+/* Minimum amount of stack required to recover from an anticipated stack
+ overflow detection. The default value conveys an estimate of the amount
+ of stack required to propagate an exception. */
+#ifndef STACK_CHECK_PROTECT
+#define STACK_CHECK_PROTECT \
+ (targetm_common.except_unwind_info (&global_options) == UI_SJLJ \
+ ? 75 * UNITS_PER_WORD \
+ : 12 * 1024)
+#endif
+
+/* Make the maximum frame size be the largest we can and still only need
+ one probe per function. */
+#ifndef STACK_CHECK_MAX_FRAME_SIZE
+#define STACK_CHECK_MAX_FRAME_SIZE \
+ ((1 << STACK_CHECK_PROBE_INTERVAL_EXP) - UNITS_PER_WORD)
+#endif
+
+/* This is arbitrary, but should be large enough everywhere. */
+#ifndef STACK_CHECK_FIXED_FRAME_SIZE
+#define STACK_CHECK_FIXED_FRAME_SIZE (4 * UNITS_PER_WORD)
+#endif
+
+/* Provide a reasonable default for the maximum size of an object to
+ allocate in the fixed frame. We may need to be able to make this
+ controllable by the user at some point. */
+#ifndef STACK_CHECK_MAX_VAR_SIZE
+#define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
+#endif
+
+/* By default, the C++ compiler will use function addresses in the
+ vtable entries. Setting this nonzero tells the compiler to use
+ function descriptors instead. The value of this macro says how
+ many words wide the descriptor is (normally 2). It is assumed
+ that the address of a function descriptor may be treated as a
+ pointer to a function. */
+#ifndef TARGET_VTABLE_USES_DESCRIPTORS
+#define TARGET_VTABLE_USES_DESCRIPTORS 0
+#endif
+
+#ifndef SWITCHABLE_TARGET
+#define SWITCHABLE_TARGET 0
+#endif
+
+#endif /* GCC_INSN_FLAGS_H */
+
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