X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Flibfirm%2Flowering.h;h=f54ce72c0e0bc2ef6e9dac46a3d298c948d0ee04;hb=94f6c873ed355ad4480e62d1b3aa47899148c436;hp=668db044d8884dd4509491f8eef7a80f9b52b9c4;hpb=2d7fd3811bc7ff95d02592f1f3779f1108b20815;p=libfirm diff --git a/include/libfirm/lowering.h b/include/libfirm/lowering.h index 668db044d..f54ce72c0 100644 --- a/include/libfirm/lowering.h +++ b/include/libfirm/lowering.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved. + * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved. * * This file is part of libFirm. * @@ -31,20 +31,20 @@ * A type telling where to add hidden parameters. */ typedef enum add_hidden_params { - ADD_HIDDEN_ALWAYS_IN_FRONT = 0, /**< always add hidden parameters in front (default). */ - ADD_HIDDEN_ALWAYS_LAST = 1, /**< always add hidden parameters last, did not work for variadic functions. */ - ADD_HIDDEN_SMART = 2 /**< add hidden parameters last for non-variadic and first for variadic functions. */ + ADD_HIDDEN_ALWAYS_IN_FRONT = 0, /**< always add hidden parameters in front (default). */ + ADD_HIDDEN_ALWAYS_LAST = 1, /**< always add hidden parameters last, did not work for variadic functions. */ + ADD_HIDDEN_SMART = 2 /**< add hidden parameters last for non-variadic and first for variadic functions. */ } add_hidden; /** * Additional flags for the lowering. */ enum lowering_flags { - LF_NONE = 0, /**< no additional flags */ - LF_COMPOUND_PARAM = 1, /**< lower calls with compound parameters */ - LF_COMPOUND_RETURN = 2, /**< lower calls with compound returns */ - LF_RETURN_HIDDEN = 4, /**< return the hidden address instead of void */ - LF_SMALL_CMP_IN_REGS = 8 /**< return small compound values in registers */ + LF_NONE = 0, /**< no additional flags */ + LF_COMPOUND_PARAM = 1, /**< lower calls with compound parameters */ + LF_COMPOUND_RETURN = 2, /**< lower calls with compound returns */ + LF_RETURN_HIDDEN = 4, /**< return the hidden address instead of void */ + LF_SMALL_CMP_IN_REGS = 8 /**< return small compound values in registers */ }; /** Maximum number of registers that can be used to return compound values. */ @@ -55,23 +55,23 @@ enum lowering_flags { * lower_compound_ret_calls(). */ typedef struct { - int def_ptr_alignment; /**< Default alignment for data pointer. */ - unsigned flags; /**< A bitmask of enum lowering_flags. */ - add_hidden hidden_params; /**< Where to add hidden parameters. */ - - /** - * A function returning a pointer type for a given type. - * If this pointer is NULL, a new pointer type is always created. - */ - ir_type *(*find_pointer_type)(ir_type *e_type, ir_mode *mode, int alignment); - - /** - * If the LF_SMALL_CMP_IN_REGS flag is set, this function will be called - * to decide, whether a compound value should be returned in registers. - * This function must return the number of used registers and fill in the modes - * of the registers to use. Up to MAX_REGISTER_RET_VAL registers can be used. - */ - int (*ret_compound_in_regs)(ir_type *compound_tp, ir_mode **modes); + int def_ptr_alignment; /**< Default alignment for data pointer. */ + unsigned flags; /**< A bitmask of enum lowering_flags. */ + add_hidden hidden_params; /**< Where to add hidden parameters. */ + + /** + * A function returning a pointer type for a given type. + * If this pointer is NULL, a new pointer type is always created. + */ + ir_type *(*find_pointer_type)(ir_type *e_type, ir_mode *mode, int alignment); + + /** + * If the LF_SMALL_CMP_IN_REGS flag is set, this function will be called + * to decide, whether a compound value should be returned in registers. + * This function must return the number of used registers and fill in the modes + * of the registers to use. Up to MAX_REGISTER_RET_VAL registers can be used. + */ + int (*ret_compound_in_regs)(ir_type *compound_tp, ir_mode **modes); } lower_params_t; /** @@ -144,6 +144,32 @@ typedef struct { */ void lower_calls_with_compounds(const lower_params_t *params); +/** + * * Lower CopyB nodes of size smaller that max_size into Loads/Stores + */ +void lower_CopyB(ir_graph *irg, unsigned max_size, unsigned native_mode_bytes); + +/** + * Lowers all Switches (Cond nodes with non-boolean mode) depending on spare_size. + * They will either remain the same or be converted into if-cascades. + * + * @param irg The ir graph to be lowered. + * @param spare_size Allowed spare size for table switches in machine words. + * (Default in edgfe: 128) + */ +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. * @@ -175,9 +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. */ @@ -188,12 +226,61 @@ ir_entity *def_create_intrinsic_fkt(ir_type *method, const ir_op *op, /** * Replaces SymConsts by a real constant if possible. * Replace Sel nodes by address computation. Also resolves array access. - * Handle Bitfields by added And/Or calculations. + * Handle bit fields by added And/Or calculations. + * + * @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 + * @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(void); +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 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); + +/** + * does the same as lower_highlevel for all nodes on the const code irg + */ +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; + /* whether direct Cond -> Cmps should also be lowered */ + int lower_direct_cmp; +} lower_mode_b_config_t; /** * Lowers mode_b operations to integer arithmetic. After the lowering the only @@ -202,11 +289,52 @@ void lower_highlevel(void); * * Example: Psi(a < 0, 1, 0) => a >> 31 * - * @param the firm graph to lower - * @param the mode of the lowered operations - * @param if set to 1, psi nodes with only have cmp/=0 as input + * @param irg the firm graph to lower + * @param config configuration for mode_b lowerer */ -void ir_lower_mode_b(ir_graph *irg, ir_mode *mode, int lower_direct_cmp); +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. @@ -261,20 +389,208 @@ typedef union _i_record { * * current_ir_graph is always set. * - * @param list an array of intrinsic map records - * @param length the length of the array + * @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 * * @return number of found intrinsics. */ -unsigned lower_intrinsics(i_record *list, int length); +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 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, + i_record *list, int length, int part_block_used); /** - * A mapper for the integer absolute value: inttype abs(inttype v). + * A mapper for the integer/float absolute value: type abs(type v). * Replaces the call by a Abs node. * * @return always 1 */ -int i_mapper_Abs(ir_node *call, void *ctx); +int i_mapper_abs(ir_node *call, void *ctx); + +/** + * A mapper for the integer byte swap value: type bswap(type v). + * Replaces the call by a builtin[ir_bk_bswap] node. + * + * @return always 1 + */ +int i_mapper_bswap(ir_node *call, void *ctx); + +/** + * A mapper for the floating point sqrt(v): floattype sqrt(floattype v); + * + * @return 1 if the sqrt call was removed, 0 else. + */ +int i_mapper_sqrt(ir_node *call, void *ctx); + +/** + * A mapper for the floating point cbrt(v): floattype sqrt(floattype v); + * + * @return 1 if the cbrt call was removed, 0 else. + */ +int i_mapper_cbrt(ir_node *call, void *ctx); + +/** + * A mapper for the floating point pow(a, b): floattype pow(floattype a, floattype b); + * + * @return 1 if the pow call was removed, 0 else. + */ +int i_mapper_pow(ir_node *call, void *ctx); + +/** + * A mapper for the floating point exp(a): floattype exp(floattype a); + * + * @return 1 if the exp call was removed, 0 else. + */ +int i_mapper_exp(ir_node *call, void *ctx); + +#define i_mapper_exp2 i_mapper_exp +#define i_mapper_exp10 i_mapper_exp + +/** + * A mapper for the floating point log(a): floattype log(floattype a); + * + * @return 1 if the log call was removed, 0 else. + */ +int i_mapper_log(ir_node *call, void *ctx); + +#define i_mapper_log2 i_mapper_log +#define i_mapper_log10 i_mapper_log + +/** + * A mapper for the floating point sin(a): floattype sin(floattype a); + * + * @return 1 if the sin call was removed, 0 else. + */ +int i_mapper_sin(ir_node *call, void *ctx); + +/** + * A mapper for the floating point sin(a): floattype cos(floattype a); + * + * @return 1 if the cos call was removed, 0 else. + */ +int i_mapper_cos(ir_node *call, void *ctx); + +/** + * A mapper for the floating point tan(a): floattype tan(floattype a); + * + * @return 1 if the tan call was removed, 0 else. + */ +int i_mapper_tan(ir_node *call, void *ctx); + +/** + * A mapper for the floating point asin(a): floattype asin(floattype a); + * + * @return 1 if the asin call was removed, 0 else. + */ +int i_mapper_asin(ir_node *call, void *ctx); + +/** + * A mapper for the floating point acos(a): floattype acos(floattype a); + * + * @return 1 if the tan call was removed, 0 else. + */ +int i_mapper_acos(ir_node *call, void *ctx); + +/** + * A mapper for the floating point atan(a): floattype atan(floattype a); + * + * @return 1 if the atan call was removed, 0 else. + */ +int i_mapper_atan(ir_node *call, void *ctx); + +/** + * A mapper for the floating point sinh(a): floattype sinh(floattype a); + * + * @return 1 if the sinh call was removed, 0 else. + */ +int i_mapper_sinh(ir_node *call, void *ctx); + +/** + * A mapper for the floating point cosh(a): floattype cosh(floattype a); + * + * @return 1 if the cosh call was removed, 0 else. + */ +int i_mapper_cosh(ir_node *call, void *ctx); + +/** + * A mapper for the floating point tanh(a): floattype tanh(floattype a); + * + * @return 1 if the tanh call was removed, 0 else. + */ +int i_mapper_tanh(ir_node *call, void *ctx); + +/** + * A mapper for the strcmp-Function: inttype strcmp(char pointer a, char pointer b); + * + * @return 1 if the strcmp call was removed, 0 else. + */ +int i_mapper_strcmp(ir_node *call, void *ctx); + +/** + * A mapper for the strncmp-Function: inttype strncmp(char pointer a, char pointer b, inttype len); + * + * @return 1 if the strncmp call was removed, 0 else. + */ +int i_mapper_strncmp(ir_node *call, void *ctx); + +/** + * A mapper for the strcpy-Function: char pointer strcpy(char pointer a, char pointer b); + * + * @return 1 if the strcpy call was removed, 0 else. + */ +int i_mapper_strcpy(ir_node *call, void *ctx); + +/** + * A mapper for the strlen-Function: inttype strlen(char pointer a); + * + * @return 1 if the strlen call was removed, 0 else. + */ +int i_mapper_strlen(ir_node *call, void *ctx); + +/** + * A mapper for the memcpy-Function: void pointer memcpy(void pointer d, void pointer s, inttype c); + * + * @return 1 if the memcpy call was removed, 0 else. + */ +int i_mapper_memcpy(ir_node *call, void *ctx); + +/** + * A mapper for the mempcpy-Function: void pointer mempcpy(void pointer d, void pointer s, inttype c); + * + * @return 1 if the mempcpy call was removed, 0 else. + */ +int i_mapper_mempcpy(ir_node *call, void *ctx); + +/** + * A mapper for the memmove-Function: void pointer memmove(void pointer d, void pointer s, inttype c); + * + * @return 1 if the memmove call was removed, 0 else. + */ +int i_mapper_memmove(ir_node *call, void *ctx); + +/** + * A mapper for the memset-Function: void pointer memset(void pointer d, inttype C, inttype len); + * + * @return 1 if the memset call was removed, 0 else. + */ +int i_mapper_memset(ir_node *call, void *ctx); + +/** + * A mapper for the strncmp-Function: inttype memcmp(void pointer a, void pointer b, inttype len); + * + * @return 1 if the strncmp call was removed, 0 else. + */ +int i_mapper_memcmp(ir_node *call, void *ctx); /** * A mapper for the alloca() function: pointer alloca(inttype size) @@ -282,7 +598,7 @@ int i_mapper_Abs(ir_node *call, void *ctx); * * @return always 1 */ -int i_mapper_Alloca(ir_node *call, void *ctx); +int i_mapper_alloca(ir_node *call, void *ctx); /** * A runtime routine description.