/* Return machine mode for libgcc expanded shift instructions. */
enum machine_mode (* libgcc_shift_count_mode) (void);
+ /* Return machine mode to be used for _Unwind_Word type. */
+ enum machine_mode (* unwind_word_mode) (void);
+
/* Given two decls, merge their attributes and return the result. */
tree (* merge_decl_attributes) (tree, tree);
/* Create the __builtin_va_list type. */
tree (* build_builtin_va_list) (void);
+ /* Get the cfun/fndecl calling abi __builtin_va_list type. */
+ tree (* fn_abi_va_list) (tree);
+
+ /* Get the __builtin_va_list type dependent on input type. */
+ tree (* canonical_va_list_type) (tree);
+
/* Expand the __builtin_va_start builtin. */
void (* expand_builtin_va_start) (tree valist, rtx nextarg);
/* Gimplifies a VA_ARG_EXPR. */
- tree (* gimplify_va_arg_expr) (tree valist, tree type, tree *pre_p,
- tree *post_p);
+ tree (* gimplify_va_arg_expr) (tree valist, tree type, gimple_seq *pre_p,
+ gimple_seq *post_p);
/* Validity-checking routines for PCH files, target-specific.
get_pch_validity returns a pointer to the data to be stored,
void (* dwarf_handle_frame_unspec) (const char *, rtx, int);
/* Perform architecture specific checking of statements gimplified
- from VA_ARG_EXPR. LHS is left hand side of MODIFY_EXPR, RHS
- is right hand side. Returns true if the statements doesn't need
- to be checked for va_list references. */
- bool (* stdarg_optimize_hook) (struct stdarg_info *ai, const_tree lhs, const_tree rhs);
+ from VA_ARG_EXPR. STMT is the statement. Returns true if the statement
+ doesn't need to be checked for va_list references. */
+ bool (* stdarg_optimize_hook) (struct stdarg_info *ai, const_gimple stmt);
/* This target hook allows the operating system to override the DECL
that represents the external variable that contains the stack
but will be later. */
void (* instantiate_decls) (void);
+ /* Return true if is OK to use a hard register REGNO as scratch register
+ in peephole2. */
+ bool (* hard_regno_scratch_ok) (unsigned int regno);
+
/* Functions specific to the C family of frontends. */
struct c {
/* Return machine mode for non-standard suffix
bool debug_form_tls_address;
} emutls;
+ struct target_option_hooks {
+ /* Function to validate the attribute((option(...))) strings or NULL. If
+ the option is validated, it is assumed that DECL_FUNCTION_SPECIFIC will
+ be filled in in the function decl node. */
+ bool (*valid_attribute_p) (tree, tree, tree, int);
+
+ /* Function to save any extra target state in the target options
+ structure. */
+ void (*save) (struct cl_target_option *);
+
+ /* Function to restore any extra target state from the target options
+ structure. */
+ void (*restore) (struct cl_target_option *);
+
+ /* Function to print any extra target state from the target options
+ structure. */
+ void (*print) (FILE *, int, struct cl_target_option *);
+
+ /* Function to parse arguments to be validated for #pragma option, and to
+ change the state if the options are valid. If the arguments are NULL,
+ use the default target options. Return true if the options are valid,
+ and set the current state. */
+ bool (*pragma_parse) (tree);
+
+ /* Function to determine if one function can inline another function. */
+ bool (*can_inline_p) (tree, tree);
+
+ /* Whether the cold attribute changes the optimization level. */
+ bool cold_attribute_sets_optimization;
+
+ /* Whether the hot attribute changes the optimization level. */
+ bool hot_attribute_sets_optimization;
+ } target_option;
+
/* For targets that need to mark extra registers as live on entry to
the function, they should define this target hook and set their
bits in the bitmap passed in. */
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