/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
* @brief This file implements the mapping of 64Bit intrinsic
* functions to code or library calls.
* @author Michael Beck
- * @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#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 "lowering.h"
+#include "iroptimize.h"
+#include "lower_dw.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 ir_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) {
+void ia32_handle_intrinsics(void)
+{
if (intrinsics && ARR_LEN(intrinsics) > 0) {
lower_intrinsics(intrinsics, ARR_LEN(intrinsics), /*part_block_used=*/1);
}
#define BINOP_Right_Low 2
#define BINOP_Right_High 3
+/**
+ * Reroute edges from the pn_Call_T_result proj of a call.
+ *
+ * @param resproj the pn_Call_T_result Proj
+ * @param l_res the lower 32 bit result
+ * @param h_res the upper 32 bit result or NULL
+ */
+static void reroute_result(ir_node *resproj, ir_node *l_res, ir_node *h_res)
+{
+ foreach_out_edge_safe(resproj, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ long pn = get_Proj_proj(proj);
+
+ if (pn == 0) {
+ edges_reroute(proj, l_res);
+ } else if (pn == 1 && h_res != NULL) {
+ edges_reroute(proj, h_res);
+ } 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 *res, *in[2];
- ir_node *bad = get_irg_bad(irg);
+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 *nomem = get_irg_no_mem(irg);
+ int old_cse;
+
+ if (edges_activated(irg)) {
+ /* use rerouting to prevent some warning in the backend */
+ foreach_out_edge_safe(call, edge) {
+ 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);
+ break;
+
+ case pn_Call_X_except:
+ /* should not happen here */
+ edges_reroute(proj, new_r_Bad(irg, mode_X));
+ break;
+ case pn_Call_M:
+ /* should not happen here */
+ edges_reroute(proj, nomem);
+ break;
+ case pn_Call_T_result:
+ reroute_result(proj, l_res, h_res);
+ 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);
+ }
- in[0] = l_res;
- in[1] = h_res;
- res = new_r_Tuple(irg, block, h_res == NULL ? 1 : 2, in);
-
- turn_into_tuple(call, pn_Call_max);
- set_Tuple_pred(call, pn_Call_M_regular, nomem);
- /* Matze: the new_r_Jmp here sometimes CSEs and then bad things happen
- * (in movgen.c from 186.crafty for example) I don't know why it is here
- * and if this fix is correct... */
- /*set_Tuple_pred(call, pn_Call_X_regular, new_r_Jmp(irg, block));*/
- set_Tuple_pred(call, pn_Call_X_regular, bad);
- set_Tuple_pred(call, pn_Call_X_except, bad);
- set_Tuple_pred(call, pn_Call_T_result, res);
- set_Tuple_pred(call, pn_Call_M_except, nomem);
- set_Tuple_pred(call, pn_Call_P_value_res_base, bad);
+ /*
+ * 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);
+
+ turn_into_tuple(call, pn_Call_max+1);
+ 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, new_r_Bad(irg, mode_X));
+ set_Tuple_pred(call, pn_Call_T_result, res);
+ }
}
/**
* 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;
+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);
/* l_res = a_l + b_l */
/* h_res = a_h + b_h + carry */
- add_low = new_rd_ia32_l_Add(dbg, irg, block, a_l, b_l, mode_T);
- flags = new_r_Proj(irg, block, add_low, mode_flags, pn_ia32_flags);
- add_high = new_rd_ia32_l_Adc(dbg, irg, block, a_h, b_h, flags, h_mode);
+ 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);
- l_res = new_r_Proj(irg, block, add_low, l_mode, pn_ia32_res);
+ l_res = new_r_Proj(add_low, l_mode, pn_ia32_res);
h_res = add_high;
- resolve_call(call, l_res, h_res, irg, block);
+ resolve_call(call, l_res, h_res, current_ir_graph, block);
return 1;
}
*/
static int map_Sub(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);
/* l_res = a_l - b_l */
/* h_res = a_h - b_h - carry */
- sub_low = new_rd_ia32_l_Sub(dbg, irg, block, a_l, b_l, mode_T);
- flags = new_r_Proj(irg, block, sub_low, mode_flags, pn_ia32_flags);
- sub_high = new_rd_ia32_l_Sbb(dbg, irg, block, a_h, b_h, flags, h_mode);
+ 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);
- l_res = new_r_Proj(irg, block, sub_low, l_mode, pn_ia32_res);
+ l_res = new_r_Proj(sub_low, l_mode, pn_ia32_res);
h_res = sub_high;
- resolve_call(call, l_res, h_res, irg, block);
+ resolve_call(call, l_res, h_res, current_ir_graph, block);
return 1;
}
/**
- * Map a Shl (a_l, a_h, count)
+ * Checks where node high is a sign extension of low.
*/
-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 */
- tarval *tv = get_Const_tarval(cnt);
-
- if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (pn_Cmp_Gt|pn_Cmp_Eq)) {
- /* 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, irg, block, a_l, h_mode);
- h_res = new_rd_Shl(dbg, irg, block, conv, cnt, h_mode);
- l_res = new_rd_Const(dbg, irg, block, l_mode, get_mode_null(l_mode));
-
- } else {
- /* h_res = SHLD a_h, a_l, cnt */
- h_res = new_rd_ia32_l_ShlD(dbg, irg, block, a_h, a_l, cnt, h_mode);
-
- /* l_res = SHL a_l, cnt */
- l_res = new_rd_ia32_l_ShlDep(dbg, irg, 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_rd_ia32_l_ShlD(dbg, irg, upper, a_h, a_l, cnt, h_mode);
-
- /* l_res = SHL a_l, cnt */
- l1 = new_rd_ia32_l_ShlDep(dbg, irg, upper, a_l, cnt, h1, l_mode);
-
- c_mode = get_irn_mode(cnt);
- irn = new_r_Const_long(irg, upper, c_mode, 32);
- irn = new_rd_And(dbg, irg, upper, cnt, irn, c_mode);
- irn = new_rd_Cmp(dbg, irg, upper, irn, new_r_Const(irg, upper, c_mode, get_mode_null(c_mode)));
- irn = new_r_Proj(irg, upper, irn, mode_b, pn_Cmp_Eq);
- cond = new_rd_Cond(dbg, irg, upper, irn);
-
- in[0] = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_true);
- in[1] = new_r_Proj(irg, upper, 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, irg, n_block, l1, h_mode);
- l2 = new_r_Const(irg, n_block, l_mode, get_mode_null(l_mode));
- in[1] = new_r_Jmp(irg, n_block);
-
- set_irn_in(block, 2, in);
-
- in[0] = l1;
- in[1] = l2;
- l_res = new_r_Phi(irg, block, 2, in, l_mode);
- set_irn_link(block, l_res);
-
- in[0] = h1;
- in[1] = h2;
- h_res = new_r_Phi(irg, block, 2, in, h_mode);
- set_irn_link(l_res, h_res);
- set_irn_link(h_res, NULL);
-
- /* move it down */
- set_nodes_block(call, block);
- for (irn = get_irn_link(call); irn != NULL; irn = 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 */
- tarval *tv = get_Const_tarval(cnt);
-
- if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (pn_Cmp_Gt|pn_Cmp_Eq)) {
- /* 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, irg, block, a_h, l_mode);
- h_res = new_rd_Const(dbg, irg, block, h_mode, get_mode_null(h_mode));
- l_res = new_rd_Shr(dbg, irg, block, conv, cnt, l_mode);
- } else {
- /* l_res = SHRD a_h:a_l, cnt */
- l_res = new_rd_ia32_l_ShrD(dbg, irg, block, a_l, a_h, cnt, l_mode);
-
- /* h_res = SHR a_h, cnt */
- h_res = new_rd_ia32_l_ShrDep(dbg, irg, 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_rd_ia32_l_ShrD(dbg, irg, upper, a_l, a_h, cnt, l_mode);
-
- /* h_res = SHR a_h, cnt */
- h1 = new_rd_ia32_l_ShrDep(dbg, irg, upper, a_h, cnt, l1, h_mode);
-
- c_mode = get_irn_mode(cnt);
- irn = new_r_Const_long(irg, upper, c_mode, 32);
- irn = new_rd_And(dbg, irg, upper, cnt, irn, c_mode);
- irn = new_rd_Cmp(dbg, irg, upper, irn, new_r_Const(irg, upper, c_mode, get_mode_null(c_mode)));
- irn = new_r_Proj(irg, upper, irn, mode_b, pn_Cmp_Eq);
- cond = new_rd_Cond(dbg, irg, upper, irn);
-
- in[0] = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_true);
- in[1] = new_r_Proj(irg, upper, 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, irg, n_block, h1, l_mode);
- h2 = new_r_Const(irg, n_block, l_mode, get_mode_null(h_mode));
- in[1] = new_r_Jmp(irg, n_block);
-
- set_irn_in(block, 2, in);
-
- in[0] = l1;
- in[1] = l2;
- l_res = new_r_Phi(irg, block, 2, in, l_mode);
- set_irn_link(block, l_res);
-
- in[0] = h1;
- in[1] = h2;
- h_res = new_r_Phi(irg, block, 2, in, h_mode);
- set_irn_link(l_res, h_res);
- set_irn_link(h_res, NULL);
-
- /* move it down */
- set_nodes_block(call, block);
- for (irn = get_irn_link(call); irn != NULL; irn = get_irn_link(irn))
- set_nodes_block(irn, block);
+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;
- resolve_call(call, l_res, h_res, irg, block);
- return 1;
-}
+ high_r = get_Shrs_right(high);
+ if (!is_Const(high_r)) return 0;
-/**
- * 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;
+ shift_count = get_Const_tarval(high_r);
+ if (!tarval_is_long(shift_count)) return 0;
+ if (get_tarval_long(shift_count) != 31) return 0;
- if (is_Const(cnt)) {
- /* the shift count is a const, create better code */
- tarval *tv = get_Const_tarval(cnt);
+ high_l = get_Shrs_left(high);
- if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (pn_Cmp_Gt|pn_Cmp_Eq)) {
- /* 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, irg, block, a_h, l_mode);
- ir_mode *c_mode = get_irn_mode(cnt);
+ 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);
- h_res = new_rd_Shrs(dbg, irg, block, a_h, new_r_Const_long(irg, block, c_mode, 31), h_mode);
- l_res = new_rd_Shrs(dbg, irg, block, conv, cnt, l_mode);
- } else {
- /* l_res = SHRD a_h:a_l, cnt */
- l_res = new_rd_ia32_l_ShrD(dbg, irg, block, a_l, a_h, cnt, l_mode);
+ if (tarval_is_long(th) && tarval_is_long(tl)) {
+ long l = get_tarval_long(tl);
+ long h = get_tarval_long(th);
- /* h_res = SAR a_h, cnt */
- h_res = new_rd_ia32_l_SarDep(dbg, irg, block, a_h, cnt, l_res, h_mode);
+ return (h == 0 && l >= 0) || (h == -1 && l < 0);
}
- 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_rd_ia32_l_ShrD(dbg, irg, upper, a_l, a_h, cnt, l_mode);
-
- /* h_res = SAR a_h, cnt */
- h1 = new_rd_ia32_l_SarDep(dbg, irg, upper, a_h, cnt, l1, h_mode);
-
- c_mode = get_irn_mode(cnt);
- irn = new_r_Const_long(irg, upper, c_mode, 32);
- irn = new_rd_And(dbg, irg, upper, cnt, irn, c_mode);
- irn = new_rd_Cmp(dbg, irg, upper, irn, new_r_Const(irg, upper, c_mode, get_mode_null(c_mode)));
- irn = new_r_Proj(irg, upper, irn, mode_b, pn_Cmp_Eq);
- cond = new_rd_Cond(dbg, irg, upper, irn);
-
- in[0] = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_true);
- in[1] = new_r_Proj(irg, upper, 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, irg, n_block, h1, l_mode);
- h2 = new_rd_Shrs(dbg, irg, n_block, a_h, new_r_Const_long(irg, block, c_mode, 31), h_mode);
- in[1] = new_r_Jmp(irg, n_block);
-
- set_irn_in(block, 2, in);
-
- in[0] = l1;
- in[1] = l2;
- l_res = new_r_Phi(irg, block, 2, in, l_mode);
- set_irn_link(block, l_res);
-
- in[0] = h1;
- in[1] = h2;
- h_res = new_r_Phi(irg, block, 2, in, h_mode);
- set_irn_link(l_res, h_res);
- set_irn_link(h_res, NULL);
-
- /* move it down */
- set_nodes_block(call, block);
- for (irn = get_irn_link(call); irn != NULL; irn = get_irn_link(irn))
- set_nodes_block(irn, block);
-
- resolve_call(call, l_res, h_res, irg, block);
- return 1;
+ return 0;
}
/**
* Map a Mul (a_l, a_h, b_l, b_h)
*/
-static int map_Mul(ir_node *call, void *ctx) {
- ir_graph *irg = current_ir_graph;
+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);
*/
/* handle the often used case of 32x32=64 mul */
- if (is_Shrs(a_h) && get_Shrs_left(a_h) == a_l) {
- ir_node *c1 = get_Shrs_right(a_h);
-
- if (is_Const(c1)) {
- tarval *tv = get_Const_tarval(c1);
-
- if (tarval_is_long(tv) && get_tarval_long(tv) == 31) {
- /* a is a sign extend */
-
- if (is_Shrs(b_h) && get_Shrs_left(b_h) == b_l && c1 == get_Shrs_right(b_h)) {
- /* b is a sign extend: it's a 32 * 32 = 64 signed multiplication */
- mul = new_rd_ia32_l_IMul(dbg, irg, block, a_l, b_l);
- h_res = new_rd_Proj(dbg, irg, block, mul, h_mode, pn_ia32_l_Mul_EDX);
- l_res = new_rd_Proj(dbg, irg, block, mul, l_mode, pn_ia32_l_Mul_EAX);
-
- goto end;
- }
- /* we rely here on Consts being on the right side */
- if (is_Const(b_h) && is_Const(b_l)) {
- tarval *th = get_Const_tarval(b_h);
- tarval *tl = get_Const_tarval(b_l);
-
- if (tarval_is_long(th) && tarval_is_long(tl)) {
- long h = get_tarval_long(th);
- long l = get_tarval_long(tl);
-
- if ((h == 0 && l >= 0) || (h == -1 && l < 0)) {
- /* b is a sign extended const */
- mul = new_rd_ia32_l_IMul(dbg, irg, block, a_l, b_l);
- h_res = new_rd_Proj(dbg, irg, block, mul, h_mode, pn_ia32_l_Mul_EDX);
- l_res = new_rd_Proj(dbg, irg, block, mul, l_mode, pn_ia32_l_Mul_EAX);
-
- goto end;
- }
- }
- }
- }
- }
+ 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);
}
-
- mul = new_rd_ia32_l_Mul(dbg, irg, block, a_l, b_l);
- pEDX = new_rd_Proj(dbg, irg, block, mul, h_mode, pn_ia32_l_Mul_EDX);
- l_res = new_rd_Proj(dbg, irg, block, mul, l_mode, pn_ia32_l_Mul_EAX);
-
- b_l = new_rd_Conv(dbg, irg, block, b_l, h_mode);
- mul = new_rd_Mul( dbg, irg, block, a_h, b_l, h_mode);
- add = new_rd_Add( dbg, irg, block, mul, pEDX, h_mode);
- a_l = new_rd_Conv(dbg, irg, block, a_l, h_mode);
- mul = new_rd_Mul( dbg, irg, block, a_l, b_h, h_mode);
- h_res = new_rd_Add( dbg, irg, block, add, mul, h_mode);
-
-end:
- resolve_call(call, l_res, h_res, irg, block);
+ 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) {
- ir_graph *irg = current_ir_graph;
+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_node *l_res, *h_res, *res;
(void) ctx;
- res = new_rd_ia32_Minus64Bit(dbg, irg, block, a_l, a_h);
- l_res = new_r_Proj(irg, block, res, l_mode, pn_ia32_Minus64Bit_low_res);
- h_res = new_r_Proj(irg, block, res, h_mode, pn_ia32_Minus64Bit_high_res);
+ 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, irg, block);
-
- return 1;
-}
-
-/**
- * Map a Abs (a_l, a_h)
- */
-static int map_Abs(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_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, irg, block, a_h, new_Const_long(l_mode, 31), h_mode);
- sign_l = new_rd_Conv(dbg, irg, block, sign, l_mode);
- sub_l = new_rd_Eor(dbg, irg, block, a_l, sign_l, l_mode);
- sub_h = new_rd_Eor(dbg, irg, block, a_h, sign, h_mode);
-
- l_sub = new_rd_ia32_l_Sub(dbg, irg, block, sub_l, sign_l, mode_T);
- l_res = new_r_Proj(irg, block, l_sub, l_mode, pn_ia32_res);
- flags = new_r_Proj(irg, block, l_sub, mode_flags, pn_ia32_flags);
- h_res = new_rd_ia32_l_Sbb(dbg, irg, block, sub_h, sign, flags, h_mode);
-
- resolve_call(call, l_res, h_res, irg, block);
+ resolve_call(call, l_res, h_res, current_ir_graph, block);
return 1;
}
#define ID(x) new_id_from_chars(x, sizeof(x)-1)
/**
- * Maps a Div. Change into a library call
+ * Maps a Div. Change into a library call.
*/
-static int map_Div(ir_node *call, void *ctx) {
- ia32_intrinsic_env_t *env = ctx;
+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)) {
ent = env->divdi3;
if (ent == NULL) {
/* create library entity */
- ent = env->divdi3 = new_entity(get_glob_type(), ID("__divdi3"), method);
- set_entity_visibility(ent, visibility_external_allocated);
- set_entity_ld_ident(ent, ID("__divdi3"));
+ ident *id = ID("__divdi3");
+ ent = env->divdi3 = create_compilerlib_entity(id, method);
}
} else {
/* 64bit unsigned Division */
ent = env->udivdi3;
if (ent == NULL) {
/* create library entity */
- ent = env->udivdi3 = new_entity(get_glob_type(), ID("__udivdi3"), method);
- set_entity_visibility(ent, visibility_external_allocated);
- set_entity_ld_ident(ent, ID("__udivdi3"));
+ ident *id = ID("__udivdi3");
+ ent = env->udivdi3 = create_compilerlib_entity(id, method);
}
}
- sym.entity_p = ent;
+
ptr = get_Call_ptr(call);
- set_SymConst_symbol(ptr, sym);
+ 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 = ctx;
+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, 0));
+ 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)) {
ent = env->moddi3;
if (ent == NULL) {
/* create library entity */
- ent = env->moddi3 = new_entity(get_glob_type(), ID("__moddi3"), method);
- set_entity_visibility(ent, visibility_external_allocated);
- set_entity_ld_ident(ent, ID("__moddi3"));
+ ident *id = ID("__moddi3");
+ ent = env->moddi3 = create_compilerlib_entity(id, method);
}
} else {
/* 64bit signed Modulo */
ent = env->umoddi3;
if (ent == NULL) {
/* create library entity */
- ent = env->umoddi3 = new_entity(get_glob_type(), ID("__umoddi3"), method);
- set_entity_visibility(ent, visibility_external_allocated);
- set_entity_ld_ident(ent, ID("__umoddi3"));
+ ident *id = ID("__umoddi3");
+ ent = env->umoddi3 = create_compilerlib_entity(id, method);
}
}
- sym.entity_p = ent;
+
ptr = get_Call_ptr(call);
- set_SymConst_symbol(ptr, sym);
+ 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) {
- ia32_intrinsic_env_t *env = 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);
- int gp_bytes = get_mode_size_bytes(ia32_reg_classes[CLASS_ia32_gp].mode);
- ir_entity *ent;
- ir_node *l_res, *h_res, *frame, *fres;
- ir_node *store_l, *store_h;
- ir_node *op_mem[2], *mem;
+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));
assert(mode_is_float(get_irn_mode(a_f)) && "unexpected Conv call");
- /* allocate memory on frame to store args */
- ent = env->irg == irg ? env->d_ll_conv : NULL;
- if (! ent) {
- ent = env->d_ll_conv = frame_alloc_area(get_irg_frame_type(irg), 2 * gp_bytes, 16, 0);
- env->irg = irg;
- }
+ 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);
- /* Store arg */
- frame = get_irg_frame(irg);
+ 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 unsigned 64bit. */
+ ir_tarval *flt_tv = new_tarval_from_str("9223372036854775808", 19, ia32_mode_E);
+ 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];
- /*
- Now we create a node to move the value from a XMM register into
- x87 FPU because it is unknown here, which FPU is used.
- This node is killed in transformation phase when not needed.
- Otherwise it is split up into a movsd + fld
- */
- a_f = new_rd_ia32_l_SSEtoX87(dbg, irg, block, frame, a_f, get_irg_no_mem(irg), mode_D);
- set_ia32_frame_ent(a_f, ent);
- set_ia32_use_frame(a_f);
- set_ia32_ls_mode(a_f, mode_D);
-
- /* store from FPU as Int */
- a_f = new_rd_ia32_l_vfist(dbg, irg, block, frame, a_f, get_irg_no_mem(irg));
- set_ia32_frame_ent(a_f, ent);
- set_ia32_use_frame(a_f);
- set_ia32_ls_mode(a_f, mode_Ls);
- mem = a_f;
-
- /* load low part of the result */
- l_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
- set_ia32_frame_ent(l_res, ent);
- set_ia32_use_frame(l_res);
- set_ia32_ls_mode(l_res, l_res_mode);
- l_res = new_r_Proj(irg, block, l_res, l_res_mode, pn_ia32_l_Load_res);
-
- /* load hight part of the result */
- h_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
- set_ia32_frame_ent(h_res, ent);
- add_ia32_am_offs_int(h_res, gp_bytes);
- set_ia32_use_frame(h_res);
- set_ia32_ls_mode(h_res, h_res_mode);
- h_res = new_r_Proj(irg, block, h_res, h_res_mode, pn_ia32_l_Load_res);
+ part_block(call);
+ upper_blk = get_nodes_block(call);
+
+ a_f = new_rd_Conv(dbg, upper_blk, a_f, ia32_mode_E);
+ 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, ia32_mode_E);
+
+ flt_phi = new_r_Phi(lower_blk, 2, in, ia32_mode_E);
+
+ /* fix Phi links for next part_block() */
+ if (is_Phi(int_phi))
+ add_Block_phi(lower_blk, int_phi);
+ if (is_Phi(flt_phi))
+ add_Block_phi(lower_blk, flt_phi);
+
+ 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) {
+ } 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 *mode_a_l = get_irn_mode(a_l);
- ir_mode *mode_a_h = get_irn_mode(a_h);
ir_mode *fres_mode = get_type_mode(get_method_res_type(method, 0));
- assert(! mode_is_float(mode_a_l) && ! mode_is_float(mode_a_h) && "unexpected Conv call");
+ assert(! mode_is_float(get_irn_mode(a_l))
+ && ! mode_is_float(get_irn_mode(a_h)));
- /* allocate memory on frame to store args */
- ent = env->irg == irg ? env->ll_d_conv : NULL;
- if (! ent) {
- ent = env->ll_d_conv = frame_alloc_area(get_irg_frame_type(irg), 2 * gp_bytes, 16, 0);
- env->irg = irg;
- }
-
- /* Store arg */
- frame = get_irg_frame(irg);
-
- /* store first arg (low part) */
- store_l = new_rd_ia32_l_Store(dbg, irg, block, frame, a_l, get_irg_no_mem(irg));
- set_ia32_frame_ent(store_l, ent);
- set_ia32_use_frame(store_l);
- set_ia32_ls_mode(store_l, get_irn_mode(a_l));
- op_mem[0] = store_l;
-
- /* store second arg (high part) */
- store_h = new_rd_ia32_l_Store(dbg, irg, block, frame, a_h, get_irg_no_mem(irg));
- set_ia32_frame_ent(store_h, ent);
- add_ia32_am_offs_int(store_h, gp_bytes);
- set_ia32_use_frame(store_h);
- set_ia32_ls_mode(store_h, get_irn_mode(a_h));
- op_mem[1] = store_h;
-
- mem = new_r_Sync(irg, block, 2, op_mem);
-
- /* Load arg into x87 FPU (implicit convert) */
- fres = new_rd_ia32_l_vfild(dbg, irg, block, frame, mem);
- set_ia32_frame_ent(fres, ent);
- set_ia32_use_frame(fres);
- set_ia32_ls_mode(fres, mode_D);
- mem = new_r_Proj(irg, block, fres, mode_M, pn_ia32_l_vfild_M);
- fres = new_r_Proj(irg, block, fres, fres_mode, pn_ia32_l_vfild_res);
-
- /*
- Now we create a node to move the loaded value into a XMM
- register because it is unknown here, which FPU is used.
- This node is killed in transformation phase when not needed.
- Otherwise it is split up into a fst + movsd
- */
- fres = new_rd_ia32_l_X87toSSE(dbg, irg, block, frame, fres, mem, fres_mode);
- set_ia32_frame_ent(fres, ent);
- set_ia32_use_frame(fres);
- set_ia32_ls_mode(fres, fres_mode);
+ ll_to_float = new_bd_ia32_l_LLtoFloat(dbg, block, a_h, a_l, fres_mode);
/* lower the call */
- resolve_call(call, fres, NULL, irg, block);
- }
- else {
- assert(0 && "unexpected Conv call");
+ resolve_call(call, ll_to_float, NULL, irg, block);
+ } else {
+ panic("unexpected Conv call %+F", call);
}
return 1;
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;
ent = &i_ents[iro_Minus];
mapper = map_Minus;
break;
- case iro_Abs:
- ent = &i_ents[iro_Abs];
- mapper = map_Abs;
- break;
case iro_Div:
ent = &i_ents[iro_Div];
mapper = map_Div;
}
if (ent && ! *ent) {
-#define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
-
- ident *id = mangle(IDENT("L"), get_op_ident(op));
+ ident *id = id_mangle(ID("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;
projects / libfirm / blobdiff