X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbenode_t.h;h=c8f3a059729c7e8f2051efece62a7f2872469601;hb=9276447aec4972df060349e162f583c4898dfec8;hp=658db29df3fb112647ba665401b391789da4db8b;hpb=29681e70b073ec2ecf9d6dd8cd37f05439ada3cc;p=libfirm diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h index 658db29df..c8f3a0597 100644 --- a/ir/be/benode_t.h +++ b/ir/be/benode_t.h @@ -1,24 +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 #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)) @@ -37,6 +55,7 @@ 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; @@ -57,6 +76,7 @@ typedef enum { beo_Call, beo_Return, beo_AddSP, + beo_SubSP, beo_IncSP, beo_SetSP, beo_RegParams, @@ -68,12 +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_expand = 0, - be_stack_dir_shrink = 1 -} be_stack_dir_t; - /** Not used yet. */ typedef enum { be_frame_flag_spill = 1, @@ -85,7 +99,8 @@ 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 /** * Determines if irn is a be_node. @@ -108,7 +123,8 @@ enum { /** * 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 *node_to_spill); +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. @@ -121,7 +137,8 @@ enum { /** * 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 *spill_node, ir_mode *mode); +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. @@ -149,11 +166,39 @@ ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *b 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 @@ -184,6 +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); /** @@ -192,13 +266,13 @@ 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); @@ -206,25 +280,21 @@ 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); -/** Returns the memory input of the IncSP. */ -ir_node *be_get_IncSP_mem(ir_node *irn); - -/** Sets a new offset to a IncSP node. */ -void be_set_IncSP_offset(ir_node *irn, unsigned offset); +/** + * 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. */ -unsigned be_get_IncSP_offset(const ir_node *irn); - -/** Sets a new direction to a IncSP node. */ -void be_set_IncSP_direction(ir_node *irn, be_stack_dir_t dir); - -/** Gets the direction from a IncSP node. */ -be_stack_dir_t be_get_IncSP_direction(const ir_node *irn); +int be_get_IncSP_offset(const ir_node *irn); /** Gets the call entity or NULL if this is no static call. */ -entity *be_Call_get_entity(const ir_node *call); +ir_entity *be_Call_get_entity(const ir_node *call); /** Sets the call entity. */ -void be_Call_set_entity(ir_node *call, entity *ent); +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. */ @@ -276,14 +346,38 @@ ir_node *be_new_Return(dbg_info *dbg, ir_graph *irg, ir_node *bl, int n_res, int /** Returns the number of real returns values */ int be_Return_get_n_rets(ir_node *ret); +/** 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_StackParam_ptr = 0 +}; + /** * 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, entity *ent); +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[]); +/** + * 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. * @@ -333,6 +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); @@ -341,24 +436,27 @@ 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); +ir_entity *be_get_frame_entity(const ir_node *irn); -void be_set_frame_entity(const ir_node *irn, entity* ent); +/** + * Returns the frame offset of this node. + */ +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_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, entity* ent); -entity *be_get_MemPerm_in_entity(const ir_node *irn, int n); +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, entity* ent); -entity *be_get_MemPerm_out_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); @@ -396,6 +494,14 @@ 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); +/** + * 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. @@ -415,9 +521,21 @@ void be_phi_handler_free(arch_irn_handler_t *handler); */ void be_phi_handler_reset(arch_irn_handler_t *handler); +/** + * Set the register requirements for a phi node. + */ +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 */