X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=ir%2Fbe%2Fbeabi.h;h=54e4e5acbef178d9791949201391a13864d77a4c;hb=0f758eda285960164141e7e2d81f00f898f2ae7e;hp=c8ae4535da519d138e5a02dcd873ce0780361699;hpb=0ede039789208c6193a14b4505417a4995369516;p=libfirm diff --git a/ir/be/beabi.h b/ir/be/beabi.h index c8ae4535d..54e4e5acb 100644 --- a/ir/be/beabi.h +++ b/ir/be/beabi.h @@ -1,38 +1,119 @@ +/* + * Copyright (C) 1995-2008 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. + * + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. + * + * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. + */ /** - * Backend ABI implementation. + * @file + * @brief Backend ABI implementation. + * @author Sebastian Hack */ +#ifndef FIRM_BE_BEABI_H +#define FIRM_BE_BEABI_H + +#include + +#include "be_types.h" +#include "firm_types.h" -#ifndef _BEABI_H -#define _BEABI_H +struct be_abi_call_flags_t { + bool try_omit_fp : 1; /**< Try to omit the frame pointer. */ + bool call_has_imm : 1; /**< A call can take the callee's address as an + immediate. */ +}; -#include "type.h" +struct be_abi_callbacks_t { + /** + * Get the between type for that call. + * @param self The callback object. + * @return The between type of for that call. + */ + ir_type *(*get_between_type)(ir_graph *irg); +}; + +/** + * Set the flags for a call. + * @param call The call. + * @param flags Some flags to be set. + * @param cb The call callbacks for that call. + * @note The ABI phase might change the flags due to analysis. + */ +void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, const be_abi_callbacks_t *cb); -#include "be.h" -#include "bearch.h" -#include "beabi_t.h" +/** + * Sets the number of bytes the stackframe is shrinked by the callee on return + */ +void be_abi_call_set_pop(be_abi_call_t *call, int pop); +/** + * The ABI can change when we call a function vs. when we have + * been called. + */ typedef enum { - BE_ABI_NONE = 0, - BE_ABI_LEFT_TO_RIGHT = 1, /**< Arguments are from left to right. */ - BE_ABI_USE_PUSH = 2, /**< Use sequential stores for arguments. */ - BE_ABI_TRY_OMIT_FRAME_POINTER = 4, /**< Try to omit the frame pointer. */ - BE_ABI_FRAME_POINTER_DEDICATED = 8, /**< If the function wants a frame pointer, - use the one of the architecture, else - an arbitrary register is used. */ - BE_ABI_SAVE_OLD_FRAME_POINTER = 16 /**< Always save the old frame pointer on the stack. */ -} be_abi_call_flags_t; - -void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, ir_type *add_frame); -void be_abi_call_param_stack(be_abi_call_t *call, int pos); -void be_abi_call_param_reg(be_abi_call_t *call, int pos, const arch_register_t *reg); -void be_abi_call_res_reg(be_abi_call_t *call, int pos, const arch_register_t *reg); - -be_abi_irg_t *be_abi_introduce(be_irg_t *bi); -void be_abi_fix_stack_bias(be_abi_irg_t *env); -void be_abi_fix_stack_nodes(be_abi_irg_t *env); -void be_abi_free(be_abi_irg_t *abi); - -ir_node *be_abi_get_callee_save_irn(be_abi_irg_t *abi, const arch_register_t *reg); + ABI_CONTEXT_CALLEE = 1 << 0, + ABI_CONTEXT_CALLER = 1 << 1, + ABI_CONTEXT_BOTH = ABI_CONTEXT_CALLEE | ABI_CONTEXT_CALLER +} be_abi_context_t; + +/** + * Record the that ABI transmits call argument pos on the stack. Modifies the abi object. + * + * @param call the abi call object + * @param pos the parameter position + * @param load_mode load the parameter with this mode (if the parameter mode is different from this mode a Conv is inserted) + * @param alignment stack alignment for the parameter on the current architecture + * @param space_before size of allocated additional space before the parameter + * @param space_after size of allocated additional space after the parameter + */ +void be_abi_call_param_stack(be_abi_call_t *call, int pos, ir_mode *load_mode, + unsigned alignment, unsigned space_before, + unsigned space_after, be_abi_context_t context); + +/** + * Record the that ABI transmits call argument pos in the given register. + * + * @param call the abi call object + * @param pos the parameter position + * @param reg the register used + */ +void be_abi_call_param_reg(be_abi_call_t *call, int pos, + const arch_register_t *reg, + be_abi_context_t context); + +/** + * Record the that ABI transmits return value pos in the given register. + * + * @param call the abi call object + * @param pos the return value position + * @param reg the register used + */ +void be_abi_call_res_reg(be_abi_call_t *call, int pos, + const arch_register_t *reg, + be_abi_context_t context); + +/** + * Get the flags of a ABI call object. + * Note that the flags must not be the same as set by be_abi_call_set_flags(). Analysis may have + * altered several flags, so getting them from the call object is always a good idea. + * @param call The call object. + * @return The flags. + */ +be_abi_call_flags_t be_abi_call_get_flags(const be_abi_call_t *call); + +void be_abi_introduce(ir_graph *irg); #endif