X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fia32_intrinsics.c;h=2a522d7fc2ffc7fc7a0620c0f23c985b4d08802f;hb=b151d11c50d89b9dffadfb63f7ccfd81ea8db44f;hp=0ecb1e3c5f4b80d788291c0d73d2e2db0262b597;hpb=2bae394315fb4f220a309c8c6f2c234f02b1ee4a;p=libfirm diff --git a/ir/be/ia32/ia32_intrinsics.c b/ir/be/ia32/ia32_intrinsics.c index 0ecb1e3c5..2a522d7fc 100644 --- a/ir/be/ia32/ia32_intrinsics.c +++ b/ir/be/ia32/ia32_intrinsics.c @@ -1,30 +1,62 @@ -#ifdef HAVE_CONFIG_H +/* + * 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. + */ + +/** + * @file + * @brief This file implements the mapping of 64Bit intrinsic + * functions to code or library calls. + * @author Michael Beck + * @version $Id$ + */ #include "config.h" -#endif +#include "iredges.h" +#include "irgmod.h" #include "irop.h" #include "irnode_t.h" #include "ircons.h" #include "irprog_t.h" -#include "lower_intrinsics.h" -#include "lower_dw.h" -#include "mangle.h" +#include "lowering.h" #include "array.h" +#include "error.h" + +#include "ia32_new_nodes.h" +#include "bearch_ia32_t.h" +#include "gen_ia32_regalloc_if.h" +#include "begnuas.h" /** The array of all intrinsics that must be mapped. */ static i_record *intrinsics; -/** An array to cache all entities */ -static entity *i_ents[iro_MaxOpcode]; +/** An array to cache all entities. */ +static ir_entity *i_ents[iro_Last + 1]; -/** +/* * Maps all intrinsic calls that the backend support * and map all instructions the backend did not support * to runtime calls. */ -void ia32_handle_intrinsics(void) { - if (intrinsics && ARR_LEN(intrinsics) > 0) - lower_intrinsics(intrinsics, ARR_LEN(intrinsics)); +void ia32_handle_intrinsics(void) +{ + if (intrinsics && ARR_LEN(intrinsics) > 0) { + lower_intrinsics(intrinsics, ARR_LEN(intrinsics), /*part_block_used=*/1); + } } #define BINOP_Left_Low 0 @@ -32,81 +64,836 @@ void ia32_handle_intrinsics(void) { #define BINOP_Right_Low 2 #define BINOP_Right_High 3 +/** + * Reroute edges from the pn_Call_T_result proj of a call. + * + * @param proj the pn_Call_T_result Proj + * @param l_res the lower 32 bit result + * @param h_res the upper 32 bit result or NULL + * @param irg the graph to replace on + */ +static void reroute_result(ir_node *proj, ir_node *l_res, ir_node *h_res, ir_graph *irg) +{ + const ir_edge_t *edge, *next; + + foreach_out_edge_safe(proj, edge, next) { + ir_node *proj = get_edge_src_irn(edge); + long pn = get_Proj_proj(proj); + + if (pn == 0) { + edges_reroute(proj, l_res, irg); + } else if (pn == 1 && h_res != NULL) { + edges_reroute(proj, h_res, irg); + } else { + panic("Unsupported Result-Proj from Call found"); + } + } +} + +/** + * Replace a call be a tuple of l_res, h_res. + * + * @param call the call node to replace + * @param l_res the lower 32 bit result + * @param h_res the upper 32 bit result or NULL + * @param irg the graph to replace on + * @param block the block to replace on (always the call block) + */ +static void resolve_call(ir_node *call, ir_node *l_res, ir_node *h_res, ir_graph *irg, ir_node *block) +{ + ir_node *jmp, *res, *in[2]; + ir_node *bad = get_irg_bad(irg); + ir_node *nomem = get_irg_no_mem(irg); + int old_cse; + + if (edges_activated(irg)) { + /* use rerouting to prevent some warning in the backend */ + const ir_edge_t *edge, *next; + + foreach_out_edge_safe(call, edge, next) { + ir_node *proj = get_edge_src_irn(edge); + pn_Call pn = (pn_Call)get_Proj_proj(proj); + + switch (pn) { + case pn_Call_X_regular: + /* Beware: + * We do not check here if this call really has exception and regular Proj's. + * new_r_Jmp might than be CSEd with the real exit jmp and then bad things happen + * (in movgen.c from 186.crafty for example). + * So be sure the newly created Jmp cannot CSE. + */ + old_cse = get_opt_cse(); + set_opt_cse(0); + jmp = new_r_Jmp(block); + set_opt_cse(old_cse); + edges_reroute(proj, jmp, irg); + break; + + case pn_Call_X_except: + case pn_Call_P_value_res_base: + /* should not happen here */ + edges_reroute(proj, bad, irg); + break; + case pn_Call_M: + /* should not happen here */ + edges_reroute(proj, nomem, irg); + break; + case pn_Call_T_result: + reroute_result(proj, l_res, h_res, irg); + break; + default: + panic("Wrong Proj from Call"); + } + kill_node(proj); + } + kill_node(call); + } else { + /* no edges, build Tuple */ + if (h_res == NULL) + res = l_res; + else { + in[0] = l_res; + in[1] = h_res; + res = new_r_Tuple(block, 2, in); + } + + turn_into_tuple(call, pn_Call_max); + /* + * Beware: + * We do not check here if this call really has exception and regular Proj's. + * new_r_Jmp might than be CSEd with the real exit jmp and then bad things happen + * (in movgen.c from 186.crafty for example). + * So be sure the newly created Jmp cannot CSE. + */ + old_cse = get_opt_cse(); + set_opt_cse(0); + jmp = new_r_Jmp(block); + set_opt_cse(old_cse); + + set_Tuple_pred(call, pn_Call_M, nomem); + set_Tuple_pred(call, pn_Call_X_regular, jmp); + set_Tuple_pred(call, pn_Call_X_except, bad); + set_Tuple_pred(call, pn_Call_T_result, res); + set_Tuple_pred(call, pn_Call_P_value_res_base, bad); + } +} + /** * Map an Add (a_l, a_h, b_l, b_h) */ -static int map_Add(ir_node *call, void *ctx) { - ir_graph *irg = current_ir_graph; - ir_node *block = get_nodes_block(call); - ir_node **params = get_Call_param_arr(call); - ir_node *l_res, *h_res, *res, *in[2]; - ir_node *a_l = params[BINOP_Left_Low]; - ir_node *a_h = params[BINOP_Left_High]; - ir_node *b_l = params[BINOP_Right_Low]; - ir_node *b_h = params[BINOP_Right_High]; +static int map_Add(ir_node *call, void *ctx) +{ + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_node *b_l = params[BINOP_Right_Low]; + ir_node *b_h = params[BINOP_Right_High]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_mode *mode_flags = ia32_reg_classes[CLASS_ia32_flags].mode; + ir_node *add_low, *add_high, *flags; + ir_node *l_res, *h_res; + (void) ctx; /* l_res = a_l + b_l */ /* h_res = a_h + b_h + carry */ - in[0] = l_res; - in[1] = h_res; - res = new_r_Tuple(irg, block, 2, in); + add_low = new_bd_ia32_l_Add(dbg, block, a_l, b_l, mode_T); + flags = new_r_Proj(add_low, mode_flags, pn_ia32_flags); + add_high = new_bd_ia32_l_Adc(dbg, block, a_h, b_h, flags, h_mode); - turn_into_tuple(call, pn_Call_max); - set_Tuple_pred(call, pn_Call_M_regular, get_irg_no_mem(irg)); - set_Tuple_pred(call, pn_Call_X_except, get_irg_bad(irg)); - set_Tuple_pred(call, pn_Call_T_result, res); - set_Tuple_pred(call, pn_Call_M_except, get_irg_bad(irg)); - set_Tuple_pred(call, pn_Call_P_value_res_base, get_irg_bad(irg)); + l_res = new_r_Proj(add_low, l_mode, pn_ia32_res); + h_res = add_high; + resolve_call(call, l_res, h_res, current_ir_graph, block); return 1; } /** * Map a Sub (a_l, a_h, b_l, b_h) */ -static int map_Sub(ir_node *call, void *ctx) { - ir_graph *irg = current_ir_graph; - ir_node *block = get_nodes_block(call); - ir_node **params = get_Call_param_arr(call); - ir_node *l_res, *h_res, *res, *in[2]; - ir_node *a_l = params[BINOP_Left_Low]; - ir_node *a_h = params[BINOP_Left_High]; - ir_node *b_l = params[BINOP_Right_Low]; - ir_node *b_h = params[BINOP_Right_High]; +static int map_Sub(ir_node *call, void *ctx) +{ + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_node *b_l = params[BINOP_Right_Low]; + ir_node *b_h = params[BINOP_Right_High]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_mode *mode_flags = ia32_reg_classes[CLASS_ia32_flags].mode; + ir_node *sub_low, *sub_high, *flags; + ir_node *l_res, *h_res; + (void) ctx; /* l_res = a_l - b_l */ /* h_res = a_h - b_h - carry */ - in[0] = l_res; - in[1] = h_res; - res = new_r_Tuple(irg, block, 2, in); + sub_low = new_bd_ia32_l_Sub(dbg, block, a_l, b_l, mode_T); + flags = new_r_Proj(sub_low, mode_flags, pn_ia32_flags); + sub_high = new_bd_ia32_l_Sbb(dbg, block, a_h, b_h, flags, h_mode); - turn_into_tuple(call, pn_Call_max); - set_Tuple_pred(call, pn_Call_M_regular, get_irg_no_mem(irg)); - set_Tuple_pred(call, pn_Call_X_except, get_irg_bad(irg)); - set_Tuple_pred(call, pn_Call_T_result, res); - set_Tuple_pred(call, pn_Call_M_except, get_irg_bad(irg)); - set_Tuple_pred(call, pn_Call_P_value_res_base, get_irg_bad(irg)); + l_res = new_r_Proj(sub_low, l_mode, pn_ia32_res); + h_res = sub_high; + resolve_call(call, l_res, h_res, current_ir_graph, block); return 1; } /** - * Ia32 implementation. - * - * @param method the method type of the emulation function entity - * @param op the emulated ir_op - * @param imode the input mode of the emulated opcode - * @param omode the output mode of the emulated opcode - * @param context the context parameter + * Map a Shl (a_l, a_h, count) */ -entity *ia32_create_intrinsic_fkt(ir_type *method, const ir_op *op, - const ir_mode *imode, const ir_mode *omode, - void *context) +static int map_Shl(ir_node *call, void *ctx) +{ + ir_graph *irg = current_ir_graph; + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_node *cnt = params[BINOP_Right_Low]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_mode *c_mode; + ir_node *l_res, *h_res, *irn, *cond, *upper, *n_block, *l1, *l2, *h1, *h2, *in[2]; + (void) ctx; + + if (is_Const(cnt)) { + /* the shift count is a const, create better code */ + ir_tarval *tv = get_Const_tarval(cnt); + + if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) + & (ir_relation_greater_equal)) { + /* simplest case: shift only the lower bits. Note that there is no + need to reduce the constant here, this is done by the hardware. */ + ir_node *conv = new_rd_Conv(dbg, block, a_l, h_mode); + h_res = new_rd_Shl(dbg, block, conv, cnt, h_mode); + l_res = new_rd_Const(dbg, irg, get_mode_null(l_mode)); + + } else { + /* h_res = SHLD a_h, a_l, cnt */ + h_res = new_bd_ia32_l_ShlD(dbg, block, a_h, a_l, cnt, h_mode); + + /* l_res = SHL a_l, cnt */ + l_res = new_bd_ia32_l_ShlDep(dbg, block, a_l, cnt, h_res, l_mode); + } + + resolve_call(call, l_res, h_res, irg, block); + return 1; + } + + part_block(call); + upper = get_nodes_block(call); + + /* h_res = SHLD a_h, a_l, cnt */ + h1 = new_bd_ia32_l_ShlD(dbg, upper, a_h, a_l, cnt, h_mode); + + /* l_res = SHL a_l, cnt */ + l1 = new_bd_ia32_l_ShlDep(dbg, upper, a_l, cnt, h1, l_mode); + + c_mode = get_irn_mode(cnt); + irn = new_r_Const_long(irg, c_mode, 32); + irn = new_rd_And(dbg, upper, cnt, irn, c_mode); + irn = new_rd_Cmp(dbg, upper, irn, new_r_Const(irg, get_mode_null(c_mode)), ir_relation_equal); + cond = new_rd_Cond(dbg, upper, irn); + + in[0] = new_r_Proj(cond, mode_X, pn_Cond_true); + in[1] = new_r_Proj(cond, mode_X, pn_Cond_false); + + /* the block for cnt >= 32 */ + n_block = new_rd_Block(dbg, irg, 1, &in[1]); + h2 = new_rd_Conv(dbg, n_block, l1, h_mode); + l2 = new_r_Const(irg, get_mode_null(l_mode)); + in[1] = new_r_Jmp(n_block); + + set_irn_in(block, 2, in); + + in[0] = l1; + in[1] = l2; + l_res = new_r_Phi(block, 2, in, l_mode); + set_Block_phis(block, l_res); + + in[0] = h1; + in[1] = h2; + h_res = new_r_Phi(block, 2, in, h_mode); + set_Phi_next(l_res, h_res); + set_Phi_next(h_res, NULL); + + /* move it down */ + set_nodes_block(call, block); + for (irn = (ir_node*)get_irn_link(call); irn != NULL; + irn = (ir_node*)get_irn_link(irn)) { + set_nodes_block(irn, block); + } + + resolve_call(call, l_res, h_res, irg, block); + return 1; +} + +/** + * Map a Shr (a_l, a_h, count) + */ +static int map_Shr(ir_node *call, void *ctx) +{ + ir_graph *irg = current_ir_graph; + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_node *cnt = params[BINOP_Right_Low]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_mode *c_mode; + ir_node *l_res, *h_res, *irn, *cond, *upper, *n_block, *l1, *l2, *h1, *h2, *in[2]; + (void) ctx; + + if (is_Const(cnt)) { + /* the shift count is a const, create better code */ + ir_tarval *tv = get_Const_tarval(cnt); + + if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (ir_relation_greater_equal)) { + /* simplest case: shift only the higher bits. Note that there is no + need to reduce the constant here, this is done by the hardware. */ + ir_node *conv = new_rd_Conv(dbg, block, a_h, l_mode); + h_res = new_rd_Const(dbg, irg, get_mode_null(h_mode)); + l_res = new_rd_Shr(dbg, block, conv, cnt, l_mode); + } else { + /* l_res = SHRD a_h:a_l, cnt */ + l_res = new_bd_ia32_l_ShrD(dbg, block, a_l, a_h, cnt, l_mode); + + /* h_res = SHR a_h, cnt */ + h_res = new_bd_ia32_l_ShrDep(dbg, block, a_h, cnt, l_res, h_mode); + } + resolve_call(call, l_res, h_res, irg, block); + return 1; + } + + part_block(call); + upper = get_nodes_block(call); + + /* l_res = SHRD a_h:a_l, cnt */ + l1 = new_bd_ia32_l_ShrD(dbg, upper, a_l, a_h, cnt, l_mode); + + /* h_res = SHR a_h, cnt */ + h1 = new_bd_ia32_l_ShrDep(dbg, upper, a_h, cnt, l1, h_mode); + + c_mode = get_irn_mode(cnt); + irn = new_r_Const_long(irg, c_mode, 32); + irn = new_rd_And(dbg, upper, cnt, irn, c_mode); + irn = new_rd_Cmp(dbg, upper, irn, new_r_Const(irg, get_mode_null(c_mode)), ir_relation_equal); + cond = new_rd_Cond(dbg, upper, irn); + + in[0] = new_r_Proj(cond, mode_X, pn_Cond_true); + in[1] = new_r_Proj(cond, mode_X, pn_Cond_false); + + /* the block for cnt >= 32 */ + n_block = new_rd_Block(dbg, irg, 1, &in[1]); + l2 = new_rd_Conv(dbg, n_block, h1, l_mode); + h2 = new_r_Const(irg, get_mode_null(h_mode)); + in[1] = new_r_Jmp(n_block); + + set_irn_in(block, 2, in); + + in[0] = l1; + in[1] = l2; + l_res = new_r_Phi(block, 2, in, l_mode); + set_Block_phis(block, l_res); + + in[0] = h1; + in[1] = h2; + h_res = new_r_Phi(block, 2, in, h_mode); + set_Phi_next(l_res, h_res); + set_Phi_next(h_res, NULL); + + /* move it down */ + set_nodes_block(call, block); + for (irn = (ir_node*)get_irn_link(call); irn != NULL; + irn = (ir_node*)get_irn_link(irn)) { + set_nodes_block(irn, block); + } + + resolve_call(call, l_res, h_res, irg, block); + return 1; +} + +/** + * Map a Shrs (a_l, a_h, count) + */ +static int map_Shrs(ir_node *call, void *ctx) +{ + ir_graph *irg = current_ir_graph; + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_node *cnt = params[BINOP_Right_Low]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_mode *c_mode; + ir_node *l_res, *h_res, *irn, *cond, *upper, *n_block, *l1, *l2, *h1, *h2, *in[2]; + (void) ctx; + + if (is_Const(cnt)) { + /* the shift count is a const, create better code */ + ir_tarval *tv = get_Const_tarval(cnt); + + if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (ir_relation_greater_equal)) { + /* simplest case: shift only the higher bits. Note that there is no + need to reduce the constant here, this is done by the hardware. */ + ir_node *conv = new_rd_Conv(dbg, block, a_h, l_mode); + ir_mode *c_mode = get_irn_mode(cnt); + + h_res = new_rd_Shrs(dbg, block, a_h, new_r_Const_long(irg, c_mode, 31), h_mode); + l_res = new_rd_Shrs(dbg, block, conv, cnt, l_mode); + } else { + /* l_res = SHRD a_h:a_l, cnt */ + l_res = new_bd_ia32_l_ShrD(dbg, block, a_l, a_h, cnt, l_mode); + + /* h_res = SAR a_h, cnt */ + h_res = new_bd_ia32_l_SarDep(dbg, block, a_h, cnt, l_res, h_mode); + } + resolve_call(call, l_res, h_res, irg, block); + return 1; + } + + part_block(call); + upper = get_nodes_block(call); + + /* l_res = SHRD a_h:a_l, cnt */ + l1 = new_bd_ia32_l_ShrD(dbg, upper, a_l, a_h, cnt, l_mode); + + /* h_res = SAR a_h, cnt */ + h1 = new_bd_ia32_l_SarDep(dbg, upper, a_h, cnt, l1, h_mode); + + c_mode = get_irn_mode(cnt); + irn = new_r_Const_long(irg, c_mode, 32); + irn = new_rd_And(dbg, upper, cnt, irn, c_mode); + irn = new_rd_Cmp(dbg, upper, irn, new_r_Const(irg, get_mode_null(c_mode)), ir_relation_equal); + cond = new_rd_Cond(dbg, upper, irn); + + in[0] = new_r_Proj(cond, mode_X, pn_Cond_true); + in[1] = new_r_Proj(cond, mode_X, pn_Cond_false); + + /* the block for cnt >= 32 */ + n_block = new_rd_Block(dbg, irg, 1, &in[1]); + l2 = new_rd_Conv(dbg, n_block, h1, l_mode); + h2 = new_rd_Shrs(dbg, n_block, a_h, new_r_Const_long(irg, c_mode, 31), h_mode); + in[1] = new_r_Jmp(n_block); + + set_irn_in(block, 2, in); + + in[0] = l1; + in[1] = l2; + l_res = new_r_Phi(block, 2, in, l_mode); + set_Block_phis(block, l_res); + + in[0] = h1; + in[1] = h2; + h_res = new_r_Phi(block, 2, in, h_mode); + set_Phi_next(l_res, h_res); + set_Phi_next(h_res, NULL); + + /* move it down */ + set_nodes_block(call, block); + for (irn = (ir_node*)get_irn_link(call); irn != NULL; + irn = (ir_node*)get_irn_link(irn)) { + set_nodes_block(irn, block); + } + + resolve_call(call, l_res, h_res, irg, block); + return 1; +} + +/** + * Checks where node high is a sign extension of low. + */ +static int is_sign_extend(ir_node *low, ir_node *high) +{ + if (is_Shrs(high)) { + ir_node *high_l; + ir_node *high_r; + ir_tarval *shift_count; + + high_r = get_Shrs_right(high); + if (!is_Const(high_r)) return 0; + + shift_count = get_Const_tarval(high_r); + if (!tarval_is_long(shift_count)) return 0; + if (get_tarval_long(shift_count) != 31) return 0; + + high_l = get_Shrs_left(high); + + if (is_Conv(low) && get_Conv_op(low) == high_l) return 1; + if (is_Conv(high_l) && get_Conv_op(high_l) == low) return 1; + } else if (is_Const(low) && is_Const(high)) { + ir_tarval *tl = get_Const_tarval(low); + ir_tarval *th = get_Const_tarval(high); + + if (tarval_is_long(th) && tarval_is_long(tl)) { + long l = get_tarval_long(tl); + long h = get_tarval_long(th); + + return (h == 0 && l >= 0) || (h == -1 && l < 0); + } + } + + return 0; +} + +/** + * Map a Mul (a_l, a_h, b_l, b_h) + */ +static int map_Mul(ir_node *call, void *ctx) +{ + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_node *b_l = params[BINOP_Right_Low]; + ir_node *b_h = params[BINOP_Right_High]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_node *l_res, *h_res, *mul, *pEDX, *add; + (void) ctx; + + /* + EDX:EAX = a_l * b_l + l_res = EAX + + t1 = b_l * a_h + t2 = t1 + EDX + t3 = a_l * b_h + h_res = t2 + t3 + */ + + /* handle the often used case of 32x32=64 mul */ + if (is_sign_extend(a_l, a_h) && is_sign_extend(b_l, b_h)) { + mul = new_bd_ia32_l_IMul(dbg, block, a_l, b_l); + h_res = new_rd_Proj(dbg, mul, h_mode, pn_ia32_l_IMul_res_high); + l_res = new_rd_Proj(dbg, mul, l_mode, pn_ia32_l_IMul_res_low); + } else { + /* note that zero extension is handled hare efficiently */ + mul = new_bd_ia32_l_Mul(dbg, block, a_l, b_l); + pEDX = new_rd_Proj(dbg, mul, h_mode, pn_ia32_l_Mul_res_high); + l_res = new_rd_Proj(dbg, mul, l_mode, pn_ia32_l_Mul_res_low); + + b_l = new_rd_Conv(dbg, block, b_l, h_mode); + mul = new_rd_Mul( dbg, block, a_h, b_l, h_mode); + add = new_rd_Add( dbg, block, mul, pEDX, h_mode); + a_l = new_rd_Conv(dbg, block, a_l, h_mode); + mul = new_rd_Mul( dbg, block, a_l, b_h, h_mode); + h_res = new_rd_Add( dbg, block, add, mul, h_mode); + } + resolve_call(call, l_res, h_res, current_ir_graph, block); + + return 1; +} + +/** + * Map a Minus (a_l, a_h) + */ +static int map_Minus(ir_node *call, void *ctx) +{ + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_node *l_res, *h_res, *res; + (void) ctx; + + res = new_bd_ia32_Minus64Bit(dbg, block, a_l, a_h); + l_res = new_r_Proj(res, l_mode, pn_ia32_Minus64Bit_low_res); + h_res = new_r_Proj(res, h_mode, pn_ia32_Minus64Bit_high_res); + + resolve_call(call, l_res, h_res, current_ir_graph, block); + + return 1; +} + +#if 0 +/** + * Map a Abs (a_l, a_h) + */ +static int map_Abs(ir_node *call, void *ctx) +{ + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_mode *l_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_mode *mode_flags = ia32_reg_classes[CLASS_ia32_flags].mode; + ir_node *l_res, *h_res, *sign, *sub_l, *sub_h; + ir_node *sign_l; + ir_node *l_sub; + ir_node *flags; + (void) ctx; + + /* + Code inspired by gcc output :) (although gcc doubles the + operation for t1 as t2 and uses t1 for operations with low part + and t2 for operations with high part which is actually unnecessary + because t1 and t2 represent the same value) + + t1 = SHRS a_h, 31 + t2 = a_l ^ t1 + t3 = a_h ^ t1 + l_res = t2 - t1 + h_res = t3 - t1 - carry + + */ + + /* TODO: give a hint to the backend somehow to not create a cltd here... */ + sign = new_rd_Shrs(dbg, block, a_h, new_r_Const_long(irg, l_mode, 31), h_mode); + sign_l = new_rd_Conv(dbg, block, sign, l_mode); + sub_l = new_rd_Eor(dbg, block, a_l, sign_l, l_mode); + sub_h = new_rd_Eor(dbg, block, a_h, sign, h_mode); + + l_sub = new_bd_ia32_l_Sub(dbg, block, sub_l, sign_l, mode_T); + l_res = new_r_Proj(l_sub, l_mode, pn_ia32_res); + flags = new_r_Proj(l_sub, mode_flags, pn_ia32_flags); + h_res = new_bd_ia32_l_Sbb(dbg, block, sub_h, sign, flags, h_mode); + + resolve_call(call, l_res, h_res, current_ir_graph, block); + + return 1; +} +#endif + +#define ID(x) new_id_from_chars(x, sizeof(x)-1) + +static ir_entity *create_compiler_lib_entity(const char *name, ir_type *type) +{ + ir_type *glob = get_glob_type(); + ident *id = new_id_from_str(name); + ir_entity *entity; + + /* Hack: we need to know the type of runtime library we use. Strictly + speaking it's not the same as the object-file-format. But in practice + the following should be enough */ + if (be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O + || be_gas_object_file_format == OBJECT_FILE_FORMAT_COFF) { + id = id_mangle3("___", id, ""); + } else { + id = id_mangle3("__", id, ""); + } + entity = new_entity(glob, id, type); + set_entity_visibility(entity, ir_visibility_local); + set_entity_ld_ident(entity, id); + return entity; +} + +/** + * Maps a Div. Change into a library call. + */ +static int map_Div(ir_node *call, void *ctx) +{ + ia32_intrinsic_env_t *env = (ia32_intrinsic_env_t*)ctx; + ir_type *method = get_Call_type(call); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_node *ptr; + ir_entity *ent; + ir_graph *irg = get_irn_irg(call); + symconst_symbol sym; + + if (mode_is_signed(h_mode)) { + /* 64bit signed Division */ + ent = env->divdi3; + if (ent == NULL) { + ent = env->divdi3 = create_compiler_lib_entity("divdi3", method); + } + } else { + /* 64bit unsigned Division */ + ent = env->udivdi3; + if (ent == NULL) { + /* create library entity */ + ent = env->udivdi3 = create_compiler_lib_entity("udivdi3", method); + } + } + + ptr = get_Call_ptr(call); + sym.entity_p = ent; + ptr = new_r_SymConst(irg, get_irn_mode(ptr), sym, symconst_addr_ent); + set_Call_ptr(call, ptr); + + return 1; +} + +/** + * Maps a Mod. Change into a library call + */ +static int map_Mod(ir_node *call, void *ctx) +{ + ia32_intrinsic_env_t *env = (ia32_intrinsic_env_t*)ctx; + ir_type *method = get_Call_type(call); + ir_mode *h_mode = get_type_mode(get_method_res_type(method, 1)); + ir_node *ptr; + ir_entity *ent; + ir_graph *irg = get_irn_irg(call); + symconst_symbol sym; + + if (mode_is_signed(h_mode)) { + /* 64bit signed Modulo */ + ent = env->moddi3; + if (ent == NULL) { + /* create library entity */ + ent = env->moddi3 = create_compiler_lib_entity("moddi3", method); + } + } else { + /* 64bit signed Modulo */ + ent = env->umoddi3; + if (ent == NULL) { + /* create library entity */ + ent = env->umoddi3 = create_compiler_lib_entity("umoddi3", method); + } + } + + ptr = get_Call_ptr(call); + sym.entity_p = ent; + ptr = new_r_SymConst(irg, get_irn_mode(ptr), sym, symconst_addr_ent); + set_Call_ptr(call, ptr); + + return 1; +} + +/** + * Maps a Conv. + */ +static int map_Conv(ir_node *call, void *ctx) +{ + ir_graph *irg = current_ir_graph; + dbg_info *dbg = get_irn_dbg_info(call); + ir_node *block = get_nodes_block(call); + ir_node **params = get_Call_param_arr(call); + ir_type *method = get_Call_type(call); + int n = get_Call_n_params(call); + ir_node *l_res, *h_res; + (void) ctx; + + if (n == 1) { + ir_node *float_to_ll; + + /* We have a Conv float -> long long here */ + ir_node *a_f = params[0]; + ir_mode *l_res_mode = get_type_mode(get_method_res_type(method, 0)); + ir_mode *h_res_mode = get_type_mode(get_method_res_type(method, 1)); + + assert(mode_is_float(get_irn_mode(a_f)) && "unexpected Conv call"); + + if (mode_is_signed(h_res_mode)) { + /* convert from float to signed 64bit */ + float_to_ll = new_bd_ia32_l_FloattoLL(dbg, block, a_f); + + l_res = new_r_Proj(float_to_ll, l_res_mode, + pn_ia32_l_FloattoLL_res_low); + h_res = new_r_Proj(float_to_ll, h_res_mode, + pn_ia32_l_FloattoLL_res_high); + } else { + /* convert from float to signed 64bit */ + ir_mode *flt_mode = get_irn_mode(a_f); + ir_tarval *flt_tv = new_tarval_from_str("9223372036854775808", 19, flt_mode); + ir_node *flt_corr = new_r_Const(irg, flt_tv); + ir_node *lower_blk = block; + ir_node *upper_blk; + ir_node *cmp, *proj, *cond, *blk, *int_phi, *flt_phi; + ir_node *in[2]; + + part_block(call); + upper_blk = get_nodes_block(call); + + cmp = new_rd_Cmp(dbg, upper_blk, a_f, flt_corr, ir_relation_less); + cond = new_rd_Cond(dbg, upper_blk, cmp); + in[0] = new_r_Proj(cond, mode_X, pn_Cond_true); + in[1] = new_r_Proj(cond, mode_X, pn_Cond_false); + blk = new_r_Block(irg, 1, &in[1]); + in[1] = new_r_Jmp(blk); + + set_irn_in(lower_blk, 2, in); + + /* create to Phis */ + in[0] = new_r_Const(irg, get_mode_null(h_res_mode)); + in[1] = new_r_Const_long(irg, h_res_mode, 0x80000000); + + int_phi = new_r_Phi(lower_blk, 2, in, h_res_mode); + + in[0] = a_f; + in[1] = new_rd_Sub(dbg, upper_blk, a_f, flt_corr, flt_mode); + + flt_phi = new_r_Phi(lower_blk, 2, in, flt_mode); + + /* fix Phi links for next part_block() */ + set_Block_phis(lower_blk, int_phi); + set_Phi_next(int_phi, flt_phi); + set_Phi_next(flt_phi, NULL); + + float_to_ll = new_bd_ia32_l_FloattoLL(dbg, lower_blk, flt_phi); + + l_res = new_r_Proj(float_to_ll, l_res_mode, + pn_ia32_l_FloattoLL_res_low); + h_res = new_r_Proj(float_to_ll, h_res_mode, + pn_ia32_l_FloattoLL_res_high); + + h_res = new_rd_Add(dbg, lower_blk, h_res, int_phi, h_res_mode); + + /* move the call and its Proj's to the lower block */ + set_nodes_block(call, lower_blk); + + for (proj = (ir_node*)get_irn_link(call); proj != NULL; + proj = (ir_node*)get_irn_link(proj)) { + set_nodes_block(proj, lower_blk); + } + block = lower_blk; + } + /* lower the call */ + resolve_call(call, l_res, h_res, irg, block); + } else if (n == 2) { + ir_node *ll_to_float; + + /* We have a Conv long long -> float here */ + ir_node *a_l = params[BINOP_Left_Low]; + ir_node *a_h = params[BINOP_Left_High]; + ir_mode *fres_mode = get_type_mode(get_method_res_type(method, 0)); + + assert(! mode_is_float(get_irn_mode(a_l)) + && ! mode_is_float(get_irn_mode(a_h))); + + ll_to_float = new_bd_ia32_l_LLtoFloat(dbg, block, a_h, a_l, fres_mode); + + /* lower the call */ + resolve_call(call, ll_to_float, NULL, irg, block); + } else { + panic("unexpected Conv call %+F", call); + } + + return 1; +} + +/* Ia32 implementation of intrinsic mapping. */ +ir_entity *ia32_create_intrinsic_fkt(ir_type *method, const ir_op *op, + const ir_mode *imode, const ir_mode *omode, + void *context) { i_record elt; - entity **ent = NULL; + ir_entity **ent = NULL; i_mapper_func mapper; if (! intrinsics) @@ -121,22 +908,57 @@ entity *ia32_create_intrinsic_fkt(ir_type *method, const ir_op *op, ent = &i_ents[iro_Sub]; mapper = map_Sub; break; + case iro_Shl: + ent = &i_ents[iro_Shl]; + mapper = map_Shl; + break; + case iro_Shr: + ent = &i_ents[iro_Shr]; + mapper = map_Shr; + break; + case iro_Shrs: + ent = &i_ents[iro_Shrs]; + mapper = map_Shrs; + break; + case iro_Mul: + ent = &i_ents[iro_Mul]; + mapper = map_Mul; + break; + case iro_Minus: + ent = &i_ents[iro_Minus]; + mapper = map_Minus; + break; + case iro_Div: + ent = &i_ents[iro_Div]; + mapper = map_Div; + break; + case iro_Mod: + ent = &i_ents[iro_Mod]; + mapper = map_Mod; + break; + case iro_Conv: + ent = &i_ents[iro_Conv]; + mapper = map_Conv; + break; default: + fprintf(stderr, "FIXME: unhandled op for ia32 intrinsic function %s\n", get_id_str(op->name)); return def_create_intrinsic_fkt(method, op, imode, omode, context); } if (ent && ! *ent) { #define IDENT(s) new_id_from_chars(s, sizeof(s)-1) - ident *id = mangle(IDENT("L"), get_op_name(op)); + ident *id = id_mangle(IDENT("L"), get_op_ident(op)); *ent = new_entity(get_glob_type(), id, method); + set_entity_visibility(*ent, ir_visibility_private); } elt.i_call.kind = INTRINSIC_CALL; elt.i_call.i_ent = *ent; elt.i_call.i_mapper = mapper; - elt.i_call.ctx = NULL; + elt.i_call.ctx = context; elt.i_call.link = NULL; ARR_APP1(i_record, intrinsics, elt); + return *ent; }