X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Flibfirm%2Flowering.h;h=f7c327873583e77c798714a4046d4eb464a32fff;hb=be0366e36294cbd7d684d264928e6ac77bbdb312;hp=2c8742ae73b0224bd5c5819656df2bd631a9dcea;hpb=9e8dda0319ea947879f30325cee51361dc7a8c1c;p=libfirm diff --git a/include/libfirm/lowering.h b/include/libfirm/lowering.h index 2c8742ae7..f7c327873 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. * @@ -26,24 +26,25 @@ #ifndef FIRM_LOWERING_H #define FIRM_LOWERING_H +#include "firm_types.h" /** * 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. */ @@ -54,23 +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; /** @@ -143,6 +144,21 @@ 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); + /** * A callback type for creating an intrinsic entity for a given opcode. * @@ -187,12 +203,51 @@ 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 + * + * @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); + +/** + * 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. */ -void lower_highlevel(void); +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); + +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 */ + int lower_direct_cmp; +} lower_mode_b_config_t; + +/** + * Lowers mode_b operations to integer arithmetic. After the lowering the only + * operations with mode_b are the Projs of Cmps; the only nodes with mode_b + * inputs are Cond and Psi nodes. + * + * Example: Psi(a < 0, 1, 0) => a >> 31 + * + * @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); /** * An intrinsic mapper function. @@ -247,20 +302,188 @@ 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); /** - * 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 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) @@ -268,7 +491,7 @@ 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.