X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbenode_t.h;h=fc119994b8522f74921decff24473a726a559be2;hb=963b305a192fbff27ef32fd96e25be74a863857c;hp=1b422fdb21b5ad6a033caf4687d0cfbee1a2264f;hpb=47bb27bdaf7c524167169c6208389b0da9410071;p=libfirm diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h index 1b422fdb2..fc119994b 100644 --- a/ir/be/benode_t.h +++ b/ir/be/benode_t.h @@ -1,25 +1,42 @@ -/** - * @file benode_t.h - * @date 17.05.2005 - * @author Sebastian Hack +/* + * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved. + * + * This file is part of libFirm. + * + * This file may be distributed and/or modified under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation and appearing in the file LICENSE.GPL included in the + * packaging of this file. * - * Backend node support. + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. * - * Copyright (C) 2005 Universitaet Karlsruhe - * Released under the GPL + * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. */ -#ifndef _BENODE_T_H -#define _BENODE_T_H +/** + * @file + * @brief Backend node support for generic backend nodes. + * @author Sebastian Hack + * @date 17.05.2005 + * @version $Id$ + * + * Backend node support for generic backend nodes. + * This file provides Perm, Copy, Spill and Reload nodes. + */ +#ifndef FIRM_BE_BENODE_T_H +#define FIRM_BE_BENODE_T_H -#include "firm_config.h" -#include "pmap.h" +#include #include "irmode.h" #include "irnode.h" -#include "entity_t.h" +#include "irgraph.h" +#include "entity.h" -#include "be_t.h" #include "bearch.h" #define BE_OUT_POS(p) (-((p) + 1)) @@ -30,12 +47,15 @@ extern ir_op *op_be_Spill; extern ir_op *op_be_Reload; extern ir_op *op_be_Perm; +extern ir_op *op_be_MemPerm; extern ir_op *op_be_Copy; extern ir_op *op_be_Keep; +extern ir_op *op_be_CopyKeep; extern ir_op *op_be_Call; extern ir_op *op_be_Return; extern ir_op *op_be_IncSP; extern ir_op *op_be_AddSP; +extern ir_op *op_be_SubSP; extern ir_op *op_be_SetSP; extern ir_op *op_be_RegParams; extern ir_op *op_be_StackParam; @@ -45,16 +65,18 @@ extern ir_op *op_be_FrameStore; extern ir_op *op_be_Barrier; typedef enum { - beo_NoBeOp = 0, + beo_NoBeOp = -1, beo_Spill, beo_Reload, beo_Perm, + beo_MemPerm, beo_Copy, beo_Keep, beo_CopyKeep, beo_Call, beo_Return, beo_AddSP, + beo_SubSP, beo_IncSP, beo_SetSP, beo_RegParams, @@ -66,12 +88,6 @@ typedef enum { beo_Last } be_opcode_t; -/** Expresses the direction of the stack pointer increment of IncSP nodes. */ -typedef enum { - be_stack_dir_along = 0, - be_stack_dir_against = 1 -} be_stack_dir_t; - /** Not used yet. */ typedef enum { be_frame_flag_spill = 1, @@ -83,43 +99,122 @@ typedef enum { * A "symbolic constant" for the size of the stack frame to use with IncSP nodes. * It gets back-patched to the real size as soon it is known. */ -#define BE_STACK_FRAME_SIZE ((unsigned) -1) +#define BE_STACK_FRAME_SIZE_EXPAND INT_MAX +#define BE_STACK_FRAME_SIZE_SHRINK INT_MIN -void be_node_init(void); +/** + * Determines if irn is a be_node. + */ +int is_be_node(const ir_node *irn); -const arch_irn_handler_t be_node_irn_handler; +/** + * Create all BE specific opcodes. + */ +void be_node_init(void); +/** + * Position numbers for the be_Spill inputs. + */ enum { be_pos_Spill_frame = 0, be_pos_Spill_val = 1 }; -ir_node *be_new_Spill(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, ir_node *node_to_spill, ir_node *ctx); +/** + * Make a new Spill node. + */ +ir_node *be_new_Spill(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, + ir_graph *irg, ir_node *bl, ir_node *frame, ir_node *to_spill); + +/** + * Position numbers for the be_Reload inputs. + */ enum { be_pos_Reload_frame = 0, be_pos_Reload_mem = 1 }; -ir_node *be_new_Reload(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, ir_node *spill_node, ir_mode *mode); +/** + * Make a new Reload node. + */ +ir_node *be_new_Reload(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, + ir_graph *irg, ir_node *bl, ir_node *frame, ir_node *mem, ir_mode *mode); + +/** + * Position numbers for the be_Copy inputs. + */ enum { - be_pos_Copy_orig = 0 + be_pos_Copy_op = 0 }; + +/** + * Make a new Copy node. + */ ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *block, ir_node *in); +/** Returns the Copy Argument. */ +ir_node *be_get_Copy_op(const ir_node *cpy); +/** Sets the Copy Argument. */ +void be_set_Copy_op(ir_node *cpy, ir_node *op); + +/** + * Make a new Perm node. + */ ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]); +/** + * Create a new MemPerm node. + */ +ir_node *be_new_MemPerm(const arch_env_t *arch_env, ir_graph *irg, ir_node *bl, int n, ir_node *in[]); ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]); +void be_Keep_add_node(ir_node *keep, const arch_register_class_t *cls, ir_node *node); + +/** + * Position numbers for the be_FrameLoad inputs + */ +enum { + be_pos_FrameLoad_mem = 0, + be_pos_FrameLoad_ptr = 1 +}; + ir_node *be_new_FrameLoad(const arch_register_class_t *cls_frame, const arch_register_class_t *cls_data, - ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, entity *ent); + ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_entity *ent); + +/** + * Position numbers for the be_FrameStore inputs + */ +enum { + be_pos_FrameStore_mem = 0, + be_pos_FrameStore_ptr = 1, + be_pos_FrameStore_val = 2 +}; + ir_node *be_new_FrameStore(const arch_register_class_t *cls_frame, const arch_register_class_t *cls_data, - ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_node *data, entity *ent); -ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, entity *ent); + ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_node *data, ir_entity *ent); +/** + * Position numbers for the be_FrameAddr inputs + */ +enum { + be_pos_FrameAddr_ptr = 0 +}; + +ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, ir_entity *ent); + +/** + * Position numbers for the be_AddSP inputs + */ enum { be_pos_AddSP_old_sp = 0, be_pos_AddSP_size = 1, be_pos_AddSP_last = 2 }; +enum { + pn_be_AddSP_res = 0, + pn_be_AddSP_M = 1, + pn_be_AddSP_last = 2 +}; + /** * Make a new AddSP node. * An AddSP node expresses an increase of the stack pointer in the direction the stack @@ -134,6 +229,35 @@ enum { */ ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz); +/** + * Position numbers for the be_SubSP inputs + */ +enum { + be_pos_SubSP_old_sp = 0, + be_pos_SubSP_size = 1, + be_pos_SubSP_last = 2 +}; + +enum { + pn_be_SubSP_res = 0, + pn_be_SubSP_M = 1, + pn_be_SubSP_last = 2 +}; + +/** + * Make a new SubSP node. + * A SubSP node expresses a decrease of the stack pointer in the direction the stack + * grows. In contrast to IncSP, the amount of bytes the stack pointer is grown, is not + * given by a constant but an ordinary Firm node. + * @param sp The stack pointer register. + * @param irg The graph. + * @param bl The block. + * @param old_sp The node representing the old stack pointer value. + * @param sz The node expressing the size by which the stack pointer shall be grown. + * @return A new DecSP node. + */ +ir_node *be_new_SubSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz); + ir_node *be_new_SetSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *operand, ir_node *mem); /** @@ -142,44 +266,147 @@ ir_node *be_new_SetSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_ * @param irg The graph to insert the node to. * @param bl The block to insert the node into. * @param old_sp The node defining the former stack pointer. - * @param amount The mount of bytes the stack pointer shall be increased/decreased. + * @param amount The mount of bytes the stack shall be expanded/shrinked (see set_IncSP_offset) * @param dir The direction in which the stack pointer shall be modified: * Along the stack's growing direction or against. * @return A new stack pointer increment/decrement node. * @note This node sets a register constraint to the @p sp register on its output. */ -ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *mem, unsigned amount, be_stack_dir_t dir); +ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, int offset); + +/** Returns the previous node that computes the stack pointer. */ +ir_node *be_get_IncSP_pred(ir_node *incsp); + +/** Sets the previous node that computes the stack pointer. */ +void be_set_IncSP_pred(ir_node *incsp, ir_node *pred); + +/** + * Sets a new offset to a IncSP node. + * A positive offset means expanding the stack, a negative offset shrinking + * an offset is == BE_STACK_FRAME_SIZE will be replaced by the real size of the + * stackframe in the fix_stack_offsets phase. + */ +void be_set_IncSP_offset(ir_node *irn, int offset); + +/** Gets the offset from a IncSP node. */ +int be_get_IncSP_offset(const ir_node *irn); + +/** Gets the call entity or NULL if this is no static call. */ +ir_entity *be_Call_get_entity(const ir_node *call); +/** Sets the call entity. */ +void be_Call_set_entity(ir_node *call, ir_entity *ent); +/** Gets the call type. */ +ir_type *be_Call_get_type(ir_node *call); +/** Sets the call type. */ +void be_Call_set_type(ir_node *call, ir_type *call_tp); + +/** + * Position numbers for the be_Call inputs. + */ +enum { + be_pos_Call_mem = 0, /**< memory input of a be_Call node */ + be_pos_Call_sp = 1, /**< stack pointer input of a be_Call node */ + be_pos_Call_ptr = 2, /**< call pointer input of a be_Call node */ + be_pos_Call_first_arg = 3 /**< first argument input of a be_Call node */ +}; + +/** + * Projection numbers for result of be_Call node: use for Proj nodes! + */ +typedef enum { + pn_be_Call_M_regular = pn_Call_M_regular, /**< The memory result of a be_Call. */ + pn_be_Call_first_res = pn_Call_max /**< The first result proj number of a be_Call. */ +} pn_be_Call; +/** + * Construct a new be_Call + */ +ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_node *ptr, + int n_outs, int n, ir_node *in[], ir_type *call_tp); +/** + * Position numbers for the be_Return inputs. + */ +enum { + be_pos_Return_mem = 0, /**< memory input of a be_Return node */ + be_pos_Return_sp = 1, /**< stack pointer input of a be_Return node */ + be_pos_Return_val = 2, /**< first "real" return value if any */ +}; -void be_set_IncSP_offset(ir_node *irn, unsigned offset); -unsigned be_get_IncSP_offset(const ir_node *irn); +/** + * Construct a new be_Return. + * @param irg the graph where the new node will be placed + * @param bl the block where the new node will be placed + * @param n_res number of "real" results + * @param n number of inputs + * @param in input array + */ +ir_node *be_new_Return(dbg_info *dbg, ir_graph *irg, ir_node *bl, int n_res, int n, ir_node *in[]); -void be_set_IncSP_direction(ir_node *irn, be_stack_dir_t dir); -be_stack_dir_t be_get_IncSP_direction(const ir_node *irn); +/** Returns the number of real returns values */ +int be_Return_get_n_rets(ir_node *ret); -entity *be_Call_get_entity(const ir_node *call); -void be_Call_set_entity(ir_node *call, entity *ent); +/** appends a node to the return node, returns the position of the node */ +int be_Return_append_node(ir_node *ret, ir_node *node); +/** + * StackParam input positions + */ enum { - be_pos_Call_mem = 0, - be_pos_Call_sp = 1, - be_pos_Call_ptr = 2 + be_pos_StackParam_ptr = 0 }; -ir_node *be_new_Call(ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_node *ptr, int n_outs, int n, ir_node *in[]); -ir_node *be_new_Return(ir_graph *irg, ir_node *bl, int n, ir_node *in[]); -ir_node *be_new_StackParam(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *frame_pointer, entity *ent); +/** + * Construct a new Stack Parameter node. + */ +ir_node *be_new_StackParam(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *frame_pointer, ir_entity *ent); ir_node *be_new_RegParams(ir_graph *irg, ir_node *bl, int n_out); ir_node *be_new_Barrier(ir_graph *irg, ir_node *bl, int n, ir_node *in[]); -ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn,ir_node *spill_ctx); -ir_node *be_reload(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *reloader, ir_mode *mode, ir_node *spill); +/** + * Appends a node to a barrier, returns the result proj of the node + */ +ir_node *be_Barrier_append_node(ir_node *barrier, ir_node *node); + +/** + * Appends a register out requirement to a RegParams node + * + * @returns the proj node for the new register + */ +ir_node *be_RegParams_append_out_reg(ir_node *regparams, + const arch_env_t *arch_env, + const arch_register_t *reg); + +/** + * Make a spill node. + * + * @param arch_env The architecture environment. + * @param irn The node to be spilled. + * @param spill_ctx The context in which the spill is introduced (This is mostly == irn up to the case of Phis). + * @return The new spill node. + */ +ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn); +/** + * Make a reload and insert it into the schedule. + * + * @param arch_env The architecture environment. + * @param cls The register class of the reloaded value. + * @param insert The node in the schedule in front of which the reload is inserted. + * @param mode The mode of the original (spilled) value. + * @param spill The spill node corresponding to this reload. + * @return A freshly made reload. + */ +ir_node *be_reload(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *insert, ir_mode *mode, ir_node *spill); + +enum { + be_pos_CopyKeep_op = 0 +}; ir_node *be_new_CopyKeep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *src, int n, ir_node *in_keep[], ir_mode *mode); ir_node *be_new_CopyKeep_single(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *src, ir_node *keep, ir_mode *mode); - +ir_node *be_get_CopyKeep_op(const ir_node *cpy); +void be_set_CopyKeep_op(ir_node *cpy, ir_node *op); /** * Get the backend opcode of a backend node. @@ -192,6 +419,7 @@ int be_is_Spill(const ir_node *irn); int be_is_Reload(const ir_node *irn); int be_is_Copy(const ir_node *irn); int be_is_Perm(const ir_node *irn); +int be_is_MemPerm(const ir_node *irn); int be_is_Keep(const ir_node *irn); int be_is_CopyKeep(const ir_node *irn); int be_is_Call(const ir_node *irn); @@ -199,6 +427,7 @@ int be_is_Return(const ir_node *irn); int be_is_IncSP(const ir_node *irn); int be_is_SetSP(const ir_node *irn); int be_is_AddSP(const ir_node *irn); +int be_is_SubSP(const ir_node *irn); int be_is_RegParams(const ir_node *irn); int be_is_StackParam(const ir_node *irn); int be_is_FrameAddr(const ir_node *irn); @@ -207,24 +436,29 @@ int be_is_FrameStore(const ir_node *irn); int be_is_Barrier(const ir_node *irn); /** - * Get the entity on the stack frame the given node uses. - * @param irn The node. - * @return The entity on the stack frame used by the node or NULL, - * if the node does not access the stack frame or is no back-end node. + * Try to avoid this function and better call arch_get_frame_entity! * + * Returns the frame entity used by the be node */ -entity *be_get_frame_entity(const ir_node *irn); - -void be_set_Spill_entity(ir_node *irn, entity *ent); -entity *be_get_spill_entity(const ir_node *irn); - -ir_node *be_get_Spill_context(const ir_node *irn); +ir_entity *be_get_frame_entity(const ir_node *irn); /** - * Set the entities of a Reload to the ones of the Spill it is pointing to. - * @param irg The graph. + * Returns the frame offset of this node. */ -void be_copy_entities_to_reloads(ir_graph *irg); +int be_get_frame_offset(const ir_node *irn); + +ir_node* be_get_Reload_mem(const ir_node *irn); +ir_node *be_get_Reload_frame(const ir_node *irn); +ir_node* be_get_Spill_val(const ir_node *irn); +ir_node *be_get_Spill_frame(const ir_node *irn); + +void be_set_MemPerm_in_entity(const ir_node *irn, int n, ir_entity* ent); +ir_entity *be_get_MemPerm_in_entity(const ir_node *irn, int n); + +void be_set_MemPerm_out_entity(const ir_node *irn, int n, ir_entity* ent); +ir_entity *be_get_MemPerm_out_entity(const ir_node *irn, int n); + +int be_get_MemPerm_entity_arity(const ir_node *irn); /** * Impose a register constraint on a backend node. @@ -261,15 +495,47 @@ void be_node_set_flags(ir_node *irn, int pos, arch_irn_flags_t flags); void be_node_set_reg_class(ir_node *irn, int pos, const arch_register_class_t *cls); /** - * Insert a Perm node after a specific node in the schedule. - * The Perm permutes over all values live at the given node. - * This means that all liveness intervals are cut apart at this - * location in the program. + * Set the register requirement type of a node. + * @param irn The node itself. + * @param pos The position (0..n) for arguments, (-1..-m) for results. + * @param flags The register requirement type to set for that node and position. + */ +void be_node_set_req_type(ir_node *irn, int pos, arch_register_req_type_t type); + +/** + * Make a new phi handler. + * @param env The architecture environment. + * @return A new phi handler. + */ +arch_irn_handler_t *be_phi_handler_new(const arch_env_t *arch_env); + +/** + * Free a phi handler. + * @param handler The handler to free. + */ +void be_phi_handler_free(arch_irn_handler_t *handler); + +/** + * Reset the register data in the phi handler. + * This should be called on each new graph and deletes the register information of the current graph. + */ +void be_phi_handler_reset(arch_irn_handler_t *handler); + +/** + * Set the register requirements for a phi node. */ -ir_node *insert_Perm_after(const arch_env_t *env, - const arch_register_class_t *cls, - dom_front_info_t *dom_front, - ir_node *pos); +void be_set_phi_reg_req(const arch_env_t *arch_env, ir_node *phi, + const arch_register_req_t *req); +/* + * Set flags for a phi node + */ +void be_set_phi_flags(const arch_env_t *arch_env, ir_node *phi, + arch_irn_flags_t flags); + +/** + * irn handler for common be nodes. + */ +extern const arch_irn_handler_t be_node_irn_handler; -#endif /* _BENODE_T_H */ +#endif /* FIRM_BE_BENODE_T_H */