/*
- * 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.
*
#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. */
* 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;
/**
*/
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.
*
/**
* 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.
*
* 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 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 0 if the strncmp call was removed, 0 else.
+ */
+int i_mapper_strncmp(ir_node *call, void *ctx);
+
+/**
+ * A mapper for the strlen-Function: inttype strlen(char pointer a);
+ *
+ * @return 0 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 0 if the memcpy call was removed, 0 else.
+ */
+int i_mapper_memcpy(ir_node *call, void *ctx);
+
+/**
+ * A mapper for the memset-Function: void pointer memset(void pointer d, inttype C, inttype len);
+ *
+ * @return 0 if the memset call was removed, 0 else.
+ */
+int i_mapper_memset(ir_node *call, void *ctx);
/**
* A mapper for the alloca() function: pointer alloca(inttype size)
*
* @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.
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