X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Flibfirm%2Flowering.h;h=f54ce72c0e0bc2ef6e9dac46a3d298c948d0ee04;hb=2807bb5b1ed34c23dc30d228ab0686c6fc9d6ae3;hp=79c75228c1a579be17da626ca22cb75c3a468ebe;hpb=7412de5cd8ccbd237f84e363bcb80e73ff4f1d79;p=libfirm diff --git a/include/libfirm/lowering.h b/include/libfirm/lowering.h index 79c75228c..f54ce72c0 100644 --- a/include/libfirm/lowering.h +++ b/include/libfirm/lowering.h @@ -159,6 +159,17 @@ void lower_CopyB(ir_graph *irg, unsigned max_size, unsigned native_mode_bytes); */ void lower_switch(ir_graph *irg, unsigned spare_size); +/** + * Creates an ir_graph pass for lower_switch(). + * + * @param name the name of this pass or NULL + * @param spare_size Allowed spare size for table switches in machine words. + * (Default in edgfe: 128) + * + * @return the newly created ir_graph pass + */ +ir_graph_pass_t *lower_switch_pass(const char *name, unsigned spare_size); + /** * A callback type for creating an intrinsic entity for a given opcode. * @@ -190,9 +201,21 @@ typedef struct _lwrdw_param_t { /** * Lower all double word operations. + * + * @param param parameter for lowering */ void lower_dw_ops(const lwrdw_param_t *param); +/** + * Creates an ir_prog pass for lower_dw_ops(). + * + * @param name the name of this pass or NULL + * @param param parameter for lowering + * + * @return the newly created ir_prog pass + */ +ir_prog_pass_t *lower_dw_ops_pass(const char *name, const lwrdw_param_t *param); + /** * Default implementation. Context is unused. */ @@ -205,21 +228,34 @@ ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op, * Replace Sel nodes by address computation. Also resolves array access. * Handle bit fields by added And/Or calculations. * - * @param irg the graph to lower + * @param irg the graph to lower + * @param lower_bitfields the graph contains old-style bitfield + * constructs * * @note: There is NO lowering ob objects oriented types. This is highly compiler * and ABI specific and should be placed directly in the compiler. */ void lower_highlevel_graph(ir_graph *irg, int lower_bitfields); +/** + * Creates an ir_graph pass for lower_highlevel_graph(). + * + * @param name the name of this pass or NULL + * @param lower_bitfields the graph contains old-style bitfield + * constructs + * + * @return the newly created ir_graph pass + */ +ir_graph_pass_t *lower_highlevel_graph_pass(const char *name, int lower_bitfields); + /** * Replaces SymConsts by a real constant if possible. * Replace Sel nodes by address computation. Also resolves array access. * Handle bit fields by added And/Or calculations. * Lowers all graphs. * - * @Note: There is NO lowering ob objects oriented types. This is highly compiler - * and ABI specific and should be placed directly in the compiler. + * @note There is NO lowering of objects oriented types. This is highly compiler + * and ABI specific and should be placed directly in the compiler. */ void lower_highlevel(int lower_bitfields); @@ -228,12 +264,21 @@ void lower_highlevel(int lower_bitfields); */ void lower_const_code(void); +/** + * Creates an ir_prog pass for lower_const_code(). + * + * @param name the name of this pass or NULL + * + * @return the newly created ir_prog pass + */ +ir_prog_pass_t *lower_const_code_pass(const char *name); + typedef struct lower_mode_b_config_t { /* mode that is used to transport 0/1 values */ ir_mode *lowered_mode; /* preferred mode for the "set" operations (a psi that produces a 0 or 1) */ ir_mode *lowered_set_mode; - /* wether direct Cond -> Cmps should also be lowered */ + /* whether direct Cond -> Cmps should also be lowered */ int lower_direct_cmp; } lower_mode_b_config_t; @@ -244,11 +289,53 @@ typedef struct lower_mode_b_config_t { * * Example: Psi(a < 0, 1, 0) => a >> 31 * - * @param irg the firm graph to lower - * @param config configuration for mode_b lowerer + * @param irg the firm graph to lower + * @param config configuration for mode_b lowerer */ void ir_lower_mode_b(ir_graph *irg, const lower_mode_b_config_t *config); +/** + * Creates an ir_graph pass for ir_lower_mode_b(). + * + * @param name the name of this pass or NULL + * @param config configuration for mode_b lowerer + * + * @return the newly created ir_graph pass + */ +ir_graph_pass_t *ir_lower_mode_b_pass( + const char *name, const lower_mode_b_config_t *config); + +/** + * Used as callback, whenever a lowerable mux is found. The return value + * indicates, whether the mux should be lowered. This may be used, to lower + * floating point muxes, while keeping mux nodes for integers, for example. + * + * @param mux The mux node that may be lowered. + * @return A non-zero value indicates that the mux should be lowered. + */ +typedef int lower_mux_callback(ir_node* mux); + +/** + * Lowers all mux nodes in the given graph. A callback function may be + * given, to select the mux nodes to lower. + * + * @param irg The graph to lower mux nodes in. + * @param cb_func The callback function for mux selection. Can be NULL, + * to lower all mux nodes. + */ +void lower_mux(ir_graph *irg, lower_mux_callback *cb_func); + +/** + * Creates an ir_graph pass for lower_mux(). + * + * @param name the name of this pass or NULL + * @param cb_func The callback function for mux selection. Can be NULL, + * to lower all mux nodes. + * + * @return the newly created ir_graph pass + */ +ir_graph_pass_t *lower_mux_pass(const char *name, lower_mux_callback *cb_func); + /** * An intrinsic mapper function. * @@ -314,16 +401,12 @@ unsigned lower_intrinsics(i_record *list, int length, int part_block_used); * Creates an irprog pass for lower_intrinsics. * * @param name the name of this pass or NULL - * @param verify should this pass be verified? - * @param dump should this pass result be dumped? * @param list an array of intrinsic map records * @param length the length of the array * @param part_block_used set to true if part_block() must be using during lowering */ ir_prog_pass_t *lower_intrinsics_pass( const char *name, - int verify, - int dump, i_record *list, int length, int part_block_used); /**