X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeabi.h;h=f9a02460ba5abaab7679163b9c3e6dd28e7197f7;hb=9c4dff8011d48f5b07dd665fce3a3afdfaea7df8;hp=fedfd4f190d523b6195ee850a6e130a4933d73d5;hpb=52334aa699fe622b6ec65834417e83f39fa0a2bc;p=libfirm diff --git a/ir/be/beabi.h b/ir/be/beabi.h index fedfd4f19..f9a02460b 100644 --- a/ir/be/beabi.h +++ b/ir/be/beabi.h @@ -1,28 +1,151 @@ +/* + * 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 + * @version $Id$ */ +#ifndef FIRM_BE_BEABI_H +#define FIRM_BE_BEABI_H + +#include "firm_types.h" -#ifndef _BEABI_H -#define _BEABI_H +#include "pset.h" +#include "pmap.h" +#include "bitset.h" #include "be.h" +#include "beirg.h" #include "bearch.h" -#include "beabi_t.h" +#include "beabi.h" + +struct be_abi_call_flags_bits_t { + unsigned left_to_right : 1; /**< Arguments are from left to right. */ + unsigned store_args_sequential : 1; /**< Use sequential stores for arguments. */ + unsigned try_omit_fp : 1; /**< Try to omit the frame pointer. */ + unsigned fp_free : 1; /**< The function can use any register as frame pointer. */ + unsigned call_has_imm : 1; /**< A call can take the callee's address as an immediate. */ + unsigned irg_is_leaf : 1; /**< 1, if the IRG is a leaf function. */ + unsigned frame_is_setup_on_call : 1; /**< Set to one, if there is already enough room on the stack for call args. */ +}; + +union be_abi_call_flags_t { + be_abi_call_flags_bits_t bits; + unsigned val; +}; + +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); + +/** + * 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); + +/** + * Set register class for call address. + * @param call The call. + * @param cls The register class for call address. + */ +void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_register_class_t *cls); + +/** + * 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, - BE_ABI_USE_PUSH = 2 -} be_abi_call_flags_t; - -void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags); -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(be_abi_irg_t *abi); -void be_abi_free(be_abi_irg_t *abi); + 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); + +/** + * Get the method type of an ABI call object. + * @param call The call object. + * @return The method type for that call object. + */ +ir_type *be_abi_call_get_method_type(const be_abi_call_t *call); + +void be_abi_introduce(ir_graph *irg); + +void be_abi_free(ir_graph *irg); #endif