DEFHOOKPOD (aligned_op, "*", struct asm_int_op, TARGET_ASM_ALIGNED_INT_OP)
DEFHOOKPOD (unaligned_op, "*", struct asm_int_op, TARGET_ASM_UNALIGNED_INT_OP)
+/* The maximum number of bytes to skip when applying
+ LABEL_ALIGN_AFTER_BARRIER. */
+DEFHOOK
+(label_align_after_barrier_max_skip,
+ "",
+ int, (rtx label),
+ default_label_align_after_barrier_max_skip)
+
+/* The maximum number of bytes to skip when applying
+ LOOP_ALIGN. */
+DEFHOOK
+(loop_align_max_skip,
+ "",
+ int, (rtx label),
+ default_loop_align_max_skip)
+
+/* The maximum number of bytes to skip when applying
+ LABEL_ALIGN. */
+DEFHOOK
+(label_align_max_skip,
+ "",
+ int, (rtx label),
+ default_label_align_max_skip)
+
+/* The maximum number of bytes to skip when applying
+ JUMP_ALIGN. */
+DEFHOOK
+(jump_align_max_skip,
+ "",
+ int, (rtx label),
+ default_jump_align_max_skip)
+
/* Try to output the assembler code for an integer object whose
value is given by X. SIZE is the size of the object in bytes and
ALIGNED_P indicates whether it is aligned. Return true if
be called afterward.",
bool, true)
+/* Generate an internal label.
+ For now this is just a wrapper for ASM_GENERATE_INTERNAL_LABEL. */
+DEFHOOK_UNDOC
+(generate_internal_label,
+ "",
+ void, (char *buf, const char *prefix, unsigned long labelno),
+ default_generate_internal_label)
+
/* Output an internal label. */
DEFHOOK
(internal_label,
void, (const char *name, unsigned int flags, tree decl),
default_no_named_section)
+/* Return preferred text (sub)section for function DECL.
+ Main purpose of this function is to separate cold, normal and hot
+ functions. STARTUP is true when function is known to be used only
+ at startup (from static constructors or it is main()).
+ EXIT is true when function is known to be used only at exit
+ (from static destructors).
+ Return NULL if function should go to default text section. */
+DEFHOOK
+(function_section,
+ "",
+ section *, (tree decl, enum node_frequency freq, bool startup, bool exit),
+ default_function_section)
+
/* Return a mask describing how relocations should be treated when
selecting sections. Bit 1 should be set if global relocations
should be placed in a read-write section; bit 0 should be set if
"",
int, (rtx insn), NULL)
+/* This hook prepares the target for a new round of multipass
+ scheduling.
+ DATA is a pointer to target-specific data used for multipass scheduling.
+ READY_TRY and N_READY represent the current state of search in the
+ optimization space. The target can filter out instructions that
+ should not be tried during current round by setting corresponding
+ elements in READY_TRY to non-zero.
+ FIRST_CYCLE_INSN_P is true if this is the first round of multipass
+ scheduling on current cycle. */
+DEFHOOK
+(first_cycle_multipass_begin,
+ "",
+ void, (void *data, char *ready_try, int n_ready, bool first_cycle_insn_p),
+ NULL)
+
+/* This hook is called when multipass scheduling evaluates instruction INSN.
+ DATA is a pointer to target-specific data that can be used to record effects
+ of INSN on CPU that are not described in DFA.
+ READY_TRY and N_READY represent the current state of search in the
+ optimization space. The target can filter out instructions that
+ should not be tried after issueing INSN by setting corresponding
+ elements in READY_TRY to non-zero.
+ INSN is the instruction being evaluated.
+ PREV_DATA is a pointer to target-specific data corresponding
+ to a state before issueing INSN. */
+DEFHOOK
+(first_cycle_multipass_issue,
+ "",
+ void, (void *data, char *ready_try, int n_ready, rtx insn,
+ const void *prev_data), NULL)
+
+/* This hook is called when multipass scheduling backtracks from evaluation of
+ instruction corresponding to DATA.
+ DATA is a pointer to target-specific data that stores the effects
+ of instruction from which the algorithm backtracks on CPU that are not
+ described in DFA.
+ READY_TRY and N_READY represent the current state of search in the
+ optimization space. The target can filter out instructions that
+ should not be tried after issueing INSN by setting corresponding
+ elements in READY_TRY to non-zero. */
+DEFHOOK
+(first_cycle_multipass_backtrack,
+ "",
+ void, (const void *data, char *ready_try, int n_ready), NULL)
+
+/* This hook notifies the target about the result of the concluded current
+ round of multipass scheduling.
+ DATA is a pointer.
+ If DATA is non-NULL it points to target-specific data used for multipass
+ scheduling which corresponds to instruction at the start of the chain of
+ the winning solution. DATA is NULL when multipass scheduling cannot find
+ a good enough solution on current cycle and decides to retry later,
+ usually after advancing the cycle count. */
+DEFHOOK
+(first_cycle_multipass_end,
+ "",
+ void, (const void *data), NULL)
+
+/* This hook is called to initialize target-specific data for multipass
+ scheduling after it has been allocated.
+ DATA is a pointer to target-specific data that stores the effects
+ of instruction from which the algorithm backtracks on CPU that are not
+ described in DFA. */
+DEFHOOK
+(first_cycle_multipass_init,
+ "",
+ void, (void *data), NULL)
+
+/* This hook is called to finalize target-specific data for multipass
+ scheduling before it is deallocated.
+ DATA is a pointer to target-specific data that stores the effects
+ of instruction from which the algorithm backtracks on CPU that are not
+ described in DFA. */
+DEFHOOK
+(first_cycle_multipass_fini,
+ "",
+ void, (void *data), NULL)
+
/* The following member value is pointer to a function called by
the insn scheduler before issuing insn passed as the third
parameter on given cycle. If the hook returns nonzero, the
(enum machine_mode mode, const_tree type, int misalignment, bool is_packed),
default_builtin_support_vector_misalignment)
-/* Return units per SIMD word. */
+/* Returns the preferred mode for SIMD operations for the specified
+ scalar mode. */
DEFHOOK
-(units_per_simd_word,
+(preferred_simd_mode,
"",
- unsigned int,
+ enum machine_mode,
(enum machine_mode mode),
- default_units_per_simd_word)
+ default_preferred_simd_mode)
+
+/* Returns a mask of vector sizes to iterate over when auto-vectorizing
+ after processing the preferred one derived from preferred_simd_mode. */
+DEFHOOK
+(autovectorize_vector_sizes,
+ "",
+ unsigned int,
+ (void),
+ default_autovectorize_vector_sizes)
HOOK_VECTOR_END (vectorize)
bool, (size_t code, const char *arg, int value),
hook_bool_size_t_constcharptr_int_true)
-/* ??? Documenting this hook requires a GFDL license grant. */
-DEFHOOK_UNDOC
-(handle_ofast,
- "Handle target-specific parts of specifying -Ofast.",
- void, (void),
- hook_void_void)
-
/* Display extra, target specific information in response to a
--target-help switch. */
DEFHOOK
bool, (const_tree record_type),
hook_bool_const_tree_false)
+/* For now this is only an interface to WORDS_BIG_ENDIAN for
+ target-independent code like the front ends, need performance testing
+ before switching completely to the target hook. */
+DEFHOOK_UNDOC
+(words_big_endian,
+ "",
+ bool, (void),
+ targhook_words_big_endian)
+
+/* Likewise for FLOAT_WORDS_BIG_ENDIAN. */
+DEFHOOK_UNDOC
+(float_words_big_endian,
+ "",
+ bool, (void),
+ targhook_float_words_big_endian)
+
/* True if the target supports decimal floating point. */
DEFHOOK
(decimal_float_supported_p,
DEFHOOK
(supports_split_stack,
- "Whether this target supports splitting the stack. This is called\
+ "Whether this target supports splitting the stack when the options\
+ described in @var{opts} have been passed. This is called\
after options have been parsed, so the target may reject splitting\
the stack in some configurations. The default version of this hook\
returns false. If @var{report} is true, this function may issue a warning\
or error; if @var{report} is false, it must simply return a value",
- bool, (bool),
- hook_bool_bool_false)
+ bool, (bool report, struct gcc_options *opts),
+ hook_bool_bool_gcc_optionsp_false)
/* Returns NULL if target supports the insn within a doloop block,
otherwise it returns an error message. */
bool named),
default_function_incoming_arg)
+DEFHOOK
+(function_arg_boundary,
+ "",
+ unsigned int, (enum machine_mode mode, const_tree type),
+ default_function_arg_boundary)
+
/* Return the diagnostic message string if function without a prototype
is not allowed for this 'val' argument; NULL otherwise. */
DEFHOOK
int, (tree fundecl, tree funtype, int size),
default_return_pops_args)
+/* Return a mode wide enough to copy any function value that might be
+ returned. */
+DEFHOOK
+(get_raw_result_mode,
+ "This target hook returns the mode to be used when accessing raw return\
+ registers in @code{__builtin_return}. Define this macro if the value\
+ in @var{reg_raw_mode} is not correct.",
+ enum machine_mode, (int regno),
+ default_get_reg_raw_mode)
+
+/* Return a mode wide enough to copy any argument value that might be
+ passed. */
+DEFHOOK
+(get_raw_arg_mode,
+ "This target hook returns the mode to be used when accessing raw argument\
+ registers in @code{__builtin_apply_args}. Define this macro if the value\
+ in @var{reg_raw_mode} is not correct.",
+ enum machine_mode, (int regno),
+ default_get_reg_raw_mode)
+
HOOK_VECTOR_END (calls)
/* Return the diagnostic message string if conversion from FROMTYPE
secondary_reload_info *sri),
default_secondary_reload)
+/* Given an rtx X being reloaded into a reg required to be in class CLASS,
+ return the class of reg to actually use. */
+DEFHOOK
+(preferred_reload_class,
+ "",
+ reg_class_t,
+ (rtx x, reg_class_t rclass),
+ default_preferred_reload_class)
+
+/* Like TARGET_PREFERRED_RELOAD_CLASS, but for output reloads instead of
+ input reloads. */
+DEFHOOK
+(preferred_output_reload_class,
+ "",
+ reg_class_t,
+ (rtx x, reg_class_t rclass),
+ default_preferred_output_reload_class)
+
DEFHOOK
(class_likely_spilled_p,
"",
bool, (const int from_reg, const int to_reg),
hook_bool_const_int_const_int_true)
+/* Modify any or all of fixed_regs, call_used_regs, global_regs,
+ reg_names, and reg_class_contents to account of the vagaries of the
+ target. */
+DEFHOOK
+(conditional_register_usage,
+ "",
+ void, (void),
+ hook_void_void)
+
/* Functions specific to the C family of frontends. */
#undef HOOK_PREFIX
#define HOOK_PREFIX "TARGET_C_"
hook_void_void)
/* Set default optimizations for the target. */
-DEFHOOK
-(optimization,
+DEFHOOKPOD
+(optimization_table,
"",
- void, (int level, int size),
- hook_void_int_int)
+ const struct default_options *, empty_optimization_table)
+
+DEFHOOK
+(default_params,
+"Set target-dependent default values for @option{--param} settings, using\
+ calls to @code{set_default_param_value}.",
+ void, (void),
+ hook_void_void)
+
+DEFHOOK
+(init_struct,
+"Set target-dependent initial values of fields in @var{opts}.",
+ void, (struct gcc_options *opts),
+ hook_void_gcc_optionsp)
/* Function to determine if one function can inline another function. */
#undef HOOK_PREFIX
void, (bitmap regs),
hook_void_bitmap)
+/* Determine the type of unwind info to emit for debugging. */
+DEFHOOK
+(debug_unwind_info,
+ "",
+ enum unwind_info_type, (void),
+ default_debug_unwind_info)
+
+/* Determine the type of unwind info to emit for exceptions. */
+DEFHOOK
+(except_unwind_info,
+ "",
+ enum unwind_info_type, (struct gcc_options *opts),
+ default_except_unwind_info)
+
/* Leave the boolean fields at the end. */
/* True if unwinding tables should be generated by default. */
bool, (size_t code, const char *arg, int value),
default_handle_c_option)
+/* Targets may provide a string object type that can be used within
+ and between C, C++, and Objective-C dialects. */
+
+DEFHOOK
+(objc_construct_string_object,
+ "Targets may provide a string object type that can be used within\
+ and between C, C++ and their respective Objective-C dialects.\
+ A string object might, for example, embed encoding and length information.\
+ These objects are considered opaque to the compiler and handled as references.\
+ An ideal implementation makes the composition of the string object\
+ match that of the Objective-C @code{NSString} (@code{NXString} for GNUStep),\
+ allowing efficient interworking between C-only and Objective-C code.\
+ If a target implements string objects then this hook should return a\
+ reference to such an object constructed from the normal `C' string\
+ representation provided in @var{string}.\
+ At present, the hook is used by Objective-C only, to obtain a\
+ common-format string object when the target provides one.",
+ tree, (tree string),
+ NULL)
+
+DEFHOOK
+(string_object_ref_type_p,
+ "If a target implements string objects then this hook should return\
+ @code{true} if @var{stringref} is a valid reference to such an object.",
+ bool, (const_tree stringref),
+ hook_bool_const_tree_false)
+
+DEFHOOK
+(check_string_object_format_arg,
+ "If a target implements string objects then this hook should should\
+ provide a facility to check the function arguments in @var{args_list}\
+ against the format specifiers in @var{format_arg} where the type of\
+ @var{format_arg} is one recognized as a valid string reference type.",
+ void, (tree format_arg, tree args_list),
+ NULL)
+
HOOK_VECTOR_END (C90_EMPTY_HACK)
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