+ 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)) & (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, 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)));
+ irn = new_r_Proj(irn, mode_b, pn_Cmp_Eq);
+ 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);
+ proj = new_r_Proj(cmp, mode_b, pn_Cmp_Lt);
+ cond = new_rd_Cond(dbg, upper_blk, proj);
+ 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);
+ }