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libjit/jit/jit-internal.h  view on Meta::CPAN

 * Reset the backtrace stack to "trace".  Used in exception catch
 * blocks to fix up the backtrace information.
 */
void _jit_backtrace_set(jit_backtrace_t trace);

/*
 * Control information that is associated with a thread.
 */
struct jit_thread_control
{
	void			*last_exception;
	jit_exception_func	exception_handler;
	jit_backtrace_t		backtrace_head;
	struct jit_jmp_buf	*setjmp_head;
};

/*
 * Initialize the block list for a function.
 */
int _jit_block_init(jit_function_t func);

/*
 * Free all blocks that are associated with a function.
 */
void _jit_block_free(jit_function_t func);

/*
 * Build control flow graph edges for all blocks associated with a
 * function.
 */
void _jit_block_build_cfg(jit_function_t func);

/*
 * Eliminate useless control flow between blocks in a function.
 */
void _jit_block_clean_cfg(jit_function_t func);

/*
 * Compute block postorder for control flow graph depth first traversal.
 */
int _jit_block_compute_postorder(jit_function_t func);

/*
 * Create a new block and associate it with a function.
 */
jit_block_t _jit_block_create(jit_function_t func);

/*
 * Destroy a block.
 */
void _jit_block_destroy(jit_block_t block);

/*
 * Detach blocks from their current position in a function.
 */
void _jit_block_detach(jit_block_t first, jit_block_t last);

/*
 * Attach blocks to a function after a specific position.
 */
void _jit_block_attach_after(jit_block_t block, jit_block_t first, jit_block_t last);

/*
 * Attach blocks to a function before a specific position.
 */
void _jit_block_attach_before(jit_block_t block, jit_block_t first, jit_block_t last);

/*
 * Record the label mapping for a block.
 */
int _jit_block_record_label(jit_block_t block, jit_label_t label);

/*
 * Record the label flags.
 */
int _jit_block_record_label_flags(jit_function_t func, jit_label_t label, int flags);

/*
 * Add an instruction to a block.
 */
jit_insn_t _jit_block_add_insn(jit_block_t block);

/*
 * Get the last instruction in a block.  NULL if the block is empty.
 */
jit_insn_t _jit_block_get_last(jit_block_t block);

/*
 * The block goes just before the function end possibly excluding
 * some empty blocks.
 */
int _jit_block_is_final(jit_block_t block);

/*
 * Free one element in a metadata list.
 */
void _jit_meta_free_one(void *meta);

/*
 * Determine if a NULL pointer check is redundant.  The specified
 * iterator is assumed to be positioned one place beyond the
 * "check_null" instruction that we are testing.
 */
int _jit_insn_check_is_redundant(const jit_insn_iter_t *iter);

/*
 * Get the correct opcode to use for a "load" instruction,
 * starting at a particular opcode base.  We assume that the
 * instructions are laid out as "sbyte", "ubyte", "short",
 * "ushort", "int", "long", "float32", "float64", "nfloat",
 * and "struct".
 */
int _jit_load_opcode(int base_opcode, jit_type_t type,
					 jit_value_t value, int no_temps);

/*
 * Get the correct opcode to use for a "store" instruction.
 * We assume that the instructions are laid out as "byte",
 * "short", "int", "long", "float32", "float64", "nfloat",
 * and "struct".
 */
int _jit_store_opcode(int base_opcode, int small_base, jit_type_t type);

/*
 * Function that is called upon each breakpoint location.
 */