X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fia32_transform.c;h=12964ac87f5122c8c9b7d9adc88cee7496735583;hb=6ef0d11278cb4d11676371841ddb8f227233252b;hp=0bfecf521285d3c82407123d1ce057b27df18001;hpb=42f2d79aa0c312de62e7aba5b38e275d67606b0e;p=libfirm diff --git a/ir/be/ia32/ia32_transform.c b/ir/be/ia32/ia32_transform.c index 0bfecf521..12964ac87 100644 --- a/ir/be/ia32/ia32_transform.c +++ b/ir/be/ia32/ia32_transform.c @@ -29,6 +29,7 @@ #endif #include +#include #include "irargs_t.h" #include "irnode_t.h" @@ -47,6 +48,7 @@ #include "irdom.h" #include "archop.h" #include "error.h" +#include "array_t.h" #include "height.h" #include "../benode_t.h" @@ -58,6 +60,7 @@ #include "../be_t.h" #include "bearch_ia32_t.h" +#include "ia32_common_transform.h" #include "ia32_nodes_attr.h" #include "ia32_transform.h" #include "ia32_new_nodes.h" @@ -93,10 +96,7 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;) -/** hold the current code generator during transformation */ -static ia32_code_gen_t *env_cg = NULL; static ir_node *initial_fpcw = NULL; -static heights_t *heights = NULL; extern ir_op *get_op_Mulh(void); @@ -125,9 +125,6 @@ typedef ir_node *construct_binop_float_func(dbg_info *db, ir_graph *irg, typedef ir_node *construct_unop_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *op); -static ir_node *try_create_Immediate(ir_node *node, - char immediate_constraint_type); - static ir_node *create_immediate_or_transform(ir_node *node, char immediate_constraint_type); @@ -135,175 +132,47 @@ static ir_node *create_I2I_Conv(ir_mode *src_mode, ir_mode *tgt_mode, dbg_info *dbgi, ir_node *block, ir_node *op, ir_node *orig_node); -/** - * Return true if a mode can be stored in the GP register set - */ -static INLINE int mode_needs_gp_reg(ir_mode *mode) { - if(mode == mode_fpcw) - return 0; - if(get_mode_size_bits(mode) > 32) - return 0; - return mode_is_int(mode) || mode_is_reference(mode) || mode == mode_b; -} - -/** - * creates a unique ident by adding a number to a tag - * - * @param tag the tag string, must contain a %d if a number - * should be added - */ -static ident *unique_id(const char *tag) -{ - static unsigned id = 0; - char str[256]; - - snprintf(str, sizeof(str), tag, ++id); - return new_id_from_str(str); -} - -/** - * Get a primitive type for a mode. - */ -static ir_type *get_prim_type(pmap *types, ir_mode *mode) -{ - pmap_entry *e = pmap_find(types, mode); - ir_type *res; - - if (! e) { - char buf[64]; - snprintf(buf, sizeof(buf), "prim_type_%s", get_mode_name(mode)); - res = new_type_primitive(new_id_from_str(buf), mode); - set_type_alignment_bytes(res, 16); - pmap_insert(types, mode, res); - } - else - res = e->value; - return res; -} - -/** - * Creates an immediate. - * - * @param symconst if set, create a SymConst immediate - * @param symconst_sign sign for the symconst - * @param val integer value for the immediate - */ -static ir_node *create_Immediate(ir_entity *symconst, int symconst_sign, long val) -{ - ir_graph *irg = current_ir_graph; - ir_node *start_block = get_irg_start_block(irg); - ir_node *immediate = new_rd_ia32_Immediate(NULL, irg, start_block, - symconst, symconst_sign, val); - arch_set_irn_register(env_cg->arch_env, immediate, &ia32_gp_regs[REG_GP_NOREG]); - - return immediate; -} - -/** - * Get an atomic entity that is initialized with a tarval forming - * a given constant. - * - * @param cnst the node representing the constant - */ -static ir_entity *create_float_const_entity(ir_node *cnst) -{ - ia32_isa_t *isa = env_cg->isa; - tarval *key = get_Const_tarval(cnst); - pmap_entry *e = pmap_find(isa->tv_ent, key); - ir_entity *res; - ir_graph *rem; - - if (e == NULL) { - tarval *tv = key; - ir_mode *mode = get_tarval_mode(tv); - ir_type *tp; - - if (! ia32_cg_config.use_sse2) { - /* try to reduce the mode to produce smaller sized entities */ - if (mode != mode_F) { - if (tarval_ieee754_can_conv_lossless(tv, mode_F)) { - mode = mode_F; - tv = tarval_convert_to(tv, mode); - } else if (mode != mode_D) { - if (tarval_ieee754_can_conv_lossless(tv, mode_D)) { - mode = mode_D; - tv = tarval_convert_to(tv, mode); - } - } - } - } - - if (mode == get_irn_mode(cnst)) { - /* mode was not changed */ - tp = get_Const_type(cnst); - if (tp == firm_unknown_type) - tp = get_prim_type(isa->types, mode); - } else - tp = get_prim_type(isa->types, mode); - - res = new_entity(get_glob_type(), unique_id(".LC%u"), tp); - - set_entity_ld_ident(res, get_entity_ident(res)); - set_entity_visibility(res, visibility_local); - set_entity_variability(res, variability_constant); - set_entity_allocation(res, allocation_static); - - /* we create a new entity here: It's initialization must resist on the - const code irg */ - rem = current_ir_graph; - current_ir_graph = get_const_code_irg(); - set_atomic_ent_value(res, new_Const_type(tv, tp)); - current_ir_graph = rem; - - pmap_insert(isa->tv_ent, key, res); - } else { - res = e->value; - } - - return res; -} - /** Return non-zero is a node represents the 0 constant. */ -static int is_Const_0(ir_node *node) { +static bool is_Const_0(ir_node *node) { return is_Const(node) && is_Const_null(node); } /** Return non-zero is a node represents the 1 constant. */ -static int is_Const_1(ir_node *node) { +static bool is_Const_1(ir_node *node) { return is_Const(node) && is_Const_one(node); } /** Return non-zero is a node represents the -1 constant. */ -static int is_Const_Minus_1(ir_node *node) { +static bool is_Const_Minus_1(ir_node *node) { return is_Const(node) && is_Const_all_one(node); } /** * returns true if constant can be created with a simple float command */ -static int is_simple_x87_Const(ir_node *node) +static bool is_simple_x87_Const(ir_node *node) { tarval *tv = get_Const_tarval(node); if (tarval_is_null(tv) || tarval_is_one(tv)) - return 1; + return true; /* TODO: match all the other float constants */ - return 0; + return false; } /** * returns true if constant can be created with a simple float command */ -static int is_simple_sse_Const(ir_node *node) +static bool is_simple_sse_Const(ir_node *node) { tarval *tv = get_Const_tarval(node); ir_mode *mode = get_tarval_mode(tv); if (mode == mode_F) - return 1; + return true; if (tarval_is_null(tv) || tarval_is_one(tv)) - return 1; + return true; if (mode == mode_D) { unsigned val = get_tarval_sub_bits(tv, 0) | @@ -312,11 +181,11 @@ static int is_simple_sse_Const(ir_node *node) (get_tarval_sub_bits(tv, 3) << 24); if (val == 0) /* lower 32bit are zero, really a 32bit constant */ - return 1; + return true; } /* TODO: match all the other float constants */ - return 0; + return false; } /** @@ -564,19 +433,6 @@ ir_entity *ia32_gen_fp_known_const(ia32_known_const_t kct) { return ent_cache[kct]; } -#ifndef NDEBUG -/** - * Prints the old node name on cg obst and returns a pointer to it. - */ -const char *ia32_get_old_node_name(ia32_code_gen_t *cg, ir_node *irn) { - ia32_isa_t *isa = (ia32_isa_t*) cg->arch_env; - - lc_eoprintf(firm_get_arg_env(), isa->name_obst, "%+F", irn); - obstack_1grow(isa->name_obst, 0); - return obstack_finish(isa->name_obst); -} -#endif /* NDEBUG */ - /** * return true if the node is a Proj(Load) and could be used in source address * mode for another node. Will return only true if the @p other node is not @@ -624,11 +480,10 @@ static int ia32_use_source_address_mode(ir_node *block, ir_node *node, return 0; /* don't do AM if other node inputs depend on the load (via mem-proj) */ - if (other != NULL && get_nodes_block(other) == block && - heights_reachable_in_block(heights, other, load)) + if (other != NULL && prevents_AM(block, load, other)) return 0; - if (other2 != NULL && get_nodes_block(other2) == block && - heights_reachable_in_block(heights, other2, load)) + + if (other2 != NULL && prevents_AM(block, load, other2)) return 0; return 1; @@ -639,6 +494,7 @@ struct ia32_address_mode_t { ia32_address_t addr; ir_mode *ls_mode; ir_node *mem_proj; + ir_node *am_node; ia32_op_type_t op_type; ir_node *new_op1; ir_node *new_op2; @@ -689,6 +545,7 @@ static void build_address(ia32_address_mode_t *am, ir_node *node) am->pinned = get_irn_pinned(load); am->ls_mode = get_Load_mode(load); am->mem_proj = be_get_Proj_for_pn(load, pn_Load_M); + am->am_node = node; /* construct load address */ ia32_create_address_mode(addr, ptr, /*force=*/0); @@ -752,8 +609,8 @@ static int is_downconv(const ir_node *node) src_mode = get_irn_mode(get_Conv_op(node)); dest_mode = get_irn_mode(node); - return mode_needs_gp_reg(src_mode) - && mode_needs_gp_reg(dest_mode) + return ia32_mode_needs_gp_reg(src_mode) + && ia32_mode_needs_gp_reg(dest_mode) && get_mode_size_bits(dest_mode) < get_mode_size_bits(src_mode); } @@ -880,20 +737,19 @@ static void match_arguments(ia32_address_mode_t *am, ir_node *block, } am->op_type = ia32_AddrModeS; } else { + am->op_type = ia32_Normal; + if (flags & match_try_am) { am->new_op1 = NULL; am->new_op2 = NULL; - am->op_type = ia32_Normal; return; } new_op1 = (op1 == NULL ? NULL : be_transform_node(op1)); if (new_op2 == NULL) new_op2 = be_transform_node(op2); - am->op_type = ia32_Normal; - am->ls_mode = get_irn_mode(op2); - if (flags & match_mode_neutral) - am->ls_mode = mode_Iu; + am->ls_mode = + (flags & match_mode_neutral ? mode_Iu : get_irn_mode(op2)); } if (addr->base == NULL) addr->base = noreg_gp; @@ -907,6 +763,12 @@ static void match_arguments(ia32_address_mode_t *am, ir_node *block, am->commutative = commutative; } +static void set_transformed_and_mark(ir_node *const old_node, ir_node *const new_node) +{ + mark_irn_visited(old_node); + be_set_transformed_node(old_node, new_node); +} + static ir_node *fix_mem_proj(ir_node *node, ia32_address_mode_t *am) { ir_mode *mode; @@ -919,8 +781,7 @@ static ir_node *fix_mem_proj(ir_node *node, ia32_address_mode_t *am) mode = get_irn_mode(node); load = get_Proj_pred(am->mem_proj); - mark_irn_visited(load); - be_set_transformed_node(load, node); + set_transformed_and_mark(load, node); if (mode != mode_T) { set_irn_mode(node, mode_T); @@ -958,7 +819,7 @@ static ir_node *gen_binop(ir_node *node, ir_node *op1, ir_node *op2, set_am_attributes(new_node, &am); /* we can't use source address mode anymore when using immediates */ if (is_ia32_Immediate(am.new_op1) || is_ia32_Immediate(am.new_op2)) - set_ia32_am_support(new_node, ia32_am_None, ia32_am_arity_none); + set_ia32_am_support(new_node, ia32_am_none); SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); new_node = fix_mem_proj(new_node, &am); @@ -992,23 +853,23 @@ static ir_node *gen_binop_flags(ir_node *node, construct_binop_flags_func *func, ir_node *src_block = get_nodes_block(node); ir_node *op1 = get_irn_n(node, n_ia32_l_binop_left); ir_node *op2 = get_irn_n(node, n_ia32_l_binop_right); + ir_node *eflags = get_irn_n(node, n_ia32_l_binop_eflags); dbg_info *dbgi; - ir_node *block, *new_node, *eflags, *new_eflags; + ir_node *block, *new_node, *new_eflags; ia32_address_mode_t am; ia32_address_t *addr = &am.addr; - match_arguments(&am, src_block, op1, op2, NULL, flags); + match_arguments(&am, src_block, op1, op2, eflags, flags); dbgi = get_irn_dbg_info(node); block = be_transform_node(src_block); - eflags = get_irn_n(node, n_ia32_l_binop_eflags); new_eflags = be_transform_node(eflags); new_node = func(dbgi, current_ir_graph, block, addr->base, addr->index, addr->mem, am.new_op1, am.new_op2, new_eflags); set_am_attributes(new_node, &am); /* we can't use source address mode anymore when using immediates */ if(is_ia32_Immediate(am.new_op1) || is_ia32_Immediate(am.new_op2)) - set_ia32_am_support(new_node, ia32_am_None, ia32_am_arity_none); + set_ia32_am_support(new_node, ia32_am_none); SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); new_node = fix_mem_proj(new_node, &am); @@ -1099,7 +960,10 @@ static ir_node *gen_shift_binop(ir_node *node, ir_node *op1, ir_node *op2, /* the shift amount can be any mode that is bigger than 5 bits, since all * other bits are ignored anyway */ while (is_Conv(op2) && get_irn_n_edges(op2) == 1) { - op2 = get_Conv_op(op2); + ir_node *const op = get_Conv_op(op2); + if (mode_is_float(get_irn_mode(op))) + break; + op2 = op; assert(get_mode_size_bits(get_irn_mode(op2)) >= 5); } new_op2 = create_immediate_or_transform(op2, 0); @@ -1315,37 +1179,32 @@ static ir_node *gen_Mul(ir_node *node) { */ static ir_node *gen_Mulh(ir_node *node) { - ir_node *block = get_nodes_block(node); - ir_node *new_block = be_transform_node(block); - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - ir_mode *mode = get_irn_mode(node); - ir_node *op1 = get_Mulh_left(node); - ir_node *op2 = get_Mulh_right(node); - ir_node *proj_res_high; - ir_node *new_node; - ia32_address_mode_t am; - ia32_address_t *addr = &am.addr; + ir_node *block = get_nodes_block(node); + ir_node *new_block = be_transform_node(block); + ir_graph *irg = current_ir_graph; + dbg_info *dbgi = get_irn_dbg_info(node); + ir_node *op1 = get_Mulh_left(node); + ir_node *op2 = get_Mulh_right(node); + ir_mode *mode = get_irn_mode(node); + construct_binop_func *func; + ir_node *proj_res_high; + ir_node *new_node; + ia32_address_mode_t am; + ia32_address_t *addr = &am.addr; assert(!mode_is_float(mode) && "Mulh with float not supported"); assert(get_mode_size_bits(mode) == 32); match_arguments(&am, block, op1, op2, NULL, match_commutative | match_am); - if (mode_is_signed(mode)) { - new_node = new_rd_ia32_IMul1OP(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op1, - am.new_op2); - } else { - new_node = new_rd_ia32_Mul(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op1, - am.new_op2); - } + func = mode_is_signed(mode) ? new_rd_ia32_IMul1OP : new_rd_ia32_Mul; + new_node = func(dbgi, irg, new_block, addr->base, addr->index, addr->mem, + am.new_op1, am.new_op2); set_am_attributes(new_node, &am); /* we can't use source address mode anymore when using immediates */ if(is_ia32_Immediate(am.new_op1) || is_ia32_Immediate(am.new_op2)) - set_ia32_am_support(new_node, ia32_am_None, ia32_am_arity_none); + set_ia32_am_support(new_node, ia32_am_none); SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); assert(get_irn_mode(new_node) == mode_T); @@ -1458,6 +1317,49 @@ static ir_node *gen_Sub(ir_node *node) { | match_am | match_immediate); } +static ir_node *transform_AM_mem(ir_graph *const irg, ir_node *const block, + ir_node *const src_val, + ir_node *const src_mem, + ir_node *const am_mem) +{ + if (is_NoMem(am_mem)) { + return be_transform_node(src_mem); + } else if (is_Proj(src_val) && + is_Proj(src_mem) && + get_Proj_pred(src_val) == get_Proj_pred(src_mem)) { + /* avoid memory loop */ + return am_mem; + } else if (is_Proj(src_val) && is_Sync(src_mem)) { + ir_node *const ptr_pred = get_Proj_pred(src_val); + int const arity = get_Sync_n_preds(src_mem); + int n = 0; + ir_node ** ins; + int i; + + NEW_ARR_A(ir_node*, ins, arity + 1); + + for (i = arity - 1; i >= 0; --i) { + ir_node *const pred = get_Sync_pred(src_mem, i); + + /* avoid memory loop */ + if (is_Proj(pred) && get_Proj_pred(pred) == ptr_pred) + continue; + + ins[n++] = be_transform_node(pred); + } + + ins[n++] = am_mem; + + return new_r_Sync(irg, block, n, ins); + } else { + ir_node *ins[2]; + + ins[0] = be_transform_node(src_mem); + ins[1] = am_mem; + return new_r_Sync(irg, block, 2, ins); + } +} + /** * Generates an ia32 DivMod with additional infrastructure for the * register allocator if needed. @@ -1507,17 +1409,7 @@ static ir_node *create_Div(ir_node *node) /* Beware: We don't need a Sync, if the memory predecessor of the Div node is the memory of the consumed address. We can have only the second op as address in Div nodes, so check only op2. */ - if(!is_NoMem(mem) && skip_Proj(mem) != skip_Proj(op2)) { - new_mem = be_transform_node(mem); - if(!is_NoMem(addr->mem)) { - ir_node *in[2]; - in[0] = new_mem; - in[1] = addr->mem; - new_mem = new_rd_Sync(dbgi, irg, new_block, 2, in); - } - } else { - new_mem = addr->mem; - } + new_mem = transform_AM_mem(irg, block, op2, mem, addr->mem); if (mode_is_signed(mode)) { ir_node *produceval = new_rd_ia32_ProduceVal(dbgi, irg, new_block); @@ -2047,38 +1939,51 @@ static int use_dest_am(ir_node *block, ir_node *node, ir_node *mem, { ir_node *load; - if(!is_Proj(node)) + if (!is_Proj(node)) return 0; /* we only use address mode if we're the only user of the load */ - if(get_irn_n_edges(node) > 1) + if (get_irn_n_edges(node) > 1) return 0; load = get_Proj_pred(node); - if(!is_Load(load)) + if (!is_Load(load)) return 0; - if(get_nodes_block(load) != block) + if (get_nodes_block(load) != block) return 0; - /* Store should be attached to the load */ - if(!is_Proj(mem) || get_Proj_pred(mem) != load) - return 0; /* store should have the same pointer as the load */ - if(get_Load_ptr(load) != ptr) + if (get_Load_ptr(load) != ptr) return 0; /* don't do AM if other node inputs depend on the load (via mem-proj) */ - if(other != NULL && get_nodes_block(other) == block - && heights_reachable_in_block(heights, other, load)) + if (other != NULL && + get_nodes_block(other) == block && + heights_reachable_in_block(heights, other, load)) { return 0; + } - return 1; -} + if (is_Sync(mem)) { + int i; -static void set_transformed_and_mark(ir_node *const old_node, ir_node *const new_node) -{ - mark_irn_visited(old_node); - be_set_transformed_node(old_node, new_node); + for (i = get_Sync_n_preds(mem) - 1; i >= 0; --i) { + ir_node *const pred = get_Sync_pred(mem, i); + + if (is_Proj(pred) && get_Proj_pred(pred) == load) + continue; + + if (get_nodes_block(pred) == block && + heights_reachable_in_block(heights, pred, load)) { + return 0; + } + } + } else { + /* Store should be attached to the load */ + if (!is_Proj(mem) || get_Proj_pred(mem) != load) + return 0; + } + + return 1; } static ir_node *dest_am_binop(ir_node *node, ir_node *op1, ir_node *op2, @@ -2092,6 +1997,7 @@ static ir_node *dest_am_binop(ir_node *node, ir_node *op1, ir_node *op2, ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg); ir_graph *irg = current_ir_graph; dbg_info *dbgi; + ir_node *new_mem; ir_node *new_node; ir_node *new_op; ir_node *mem_proj; @@ -2121,13 +2027,15 @@ static ir_node *dest_am_binop(ir_node *node, ir_node *op1, ir_node *op2, if(addr->mem == NULL) addr->mem = new_NoMem(); - dbgi = get_irn_dbg_info(node); - block = be_transform_node(src_block); + dbgi = get_irn_dbg_info(node); + block = be_transform_node(src_block); + new_mem = transform_AM_mem(irg, block, am.am_node, mem, addr->mem); + if(get_mode_size_bits(mode) == 8) { new_node = func8bit(dbgi, irg, block, addr->base, addr->index, - addr->mem, new_op); + new_mem, new_op); } else { - new_node = func(dbgi, irg, block, addr->base, addr->index, addr->mem, + new_node = func(dbgi, irg, block, addr->base, addr->index, new_mem, new_op); } set_address(new_node, addr); @@ -2146,12 +2054,13 @@ static ir_node *dest_am_unop(ir_node *node, ir_node *op, ir_node *mem, ir_node *ptr, ir_mode *mode, construct_unop_dest_func *func) { - ir_graph *irg = current_ir_graph; - ir_node *src_block = get_nodes_block(node); - ir_node *block; + ir_graph *irg = current_ir_graph; + ir_node *src_block = get_nodes_block(node); + ir_node *block; dbg_info *dbgi; - ir_node *new_node; - ir_node *mem_proj; + ir_node *new_mem; + ir_node *new_node; + ir_node *mem_proj; ia32_address_mode_t am; ia32_address_t *addr = &am.addr; memset(&am, 0, sizeof(am)); @@ -2163,7 +2072,8 @@ static ir_node *dest_am_unop(ir_node *node, ir_node *op, ir_node *mem, dbgi = get_irn_dbg_info(node); block = be_transform_node(src_block); - new_node = func(dbgi, irg, block, addr->base, addr->index, addr->mem); + new_mem = transform_AM_mem(irg, block, am.am_node, mem, addr->mem); + new_node = func(dbgi, irg, block, addr->base, addr->index, new_mem); set_address(new_node, addr); set_ia32_op_type(new_node, ia32_AddrModeD); set_ia32_ls_mode(new_node, mode); @@ -2178,8 +2088,8 @@ static ir_node *dest_am_unop(ir_node *node, ir_node *op, ir_node *mem, static ir_node *try_create_SetMem(ir_node *node, ir_node *ptr, ir_node *mem) { ir_mode *mode = get_irn_mode(node); - ir_node *psi_true = get_Psi_val(node, 0); - ir_node *psi_default = get_Psi_default(node); + ir_node *mux_true = get_Mux_true(node); + ir_node *mux_false = get_Mux_false(node); ir_graph *irg; ir_node *cond; ir_node *new_mem; @@ -2195,9 +2105,9 @@ static ir_node *try_create_SetMem(ir_node *node, ir_node *ptr, ir_node *mem) { if(get_mode_size_bits(mode) != 8) return NULL; - if(is_Const_1(psi_true) && is_Const_0(psi_default)) { + if(is_Const_1(mux_true) && is_Const_0(mux_false)) { negated = 0; - } else if(is_Const_0(psi_true) && is_Const_1(psi_default)) { + } else if(is_Const_0(mux_true) && is_Const_1(mux_false)) { negated = 1; } else { return NULL; @@ -2209,7 +2119,7 @@ static ir_node *try_create_SetMem(ir_node *node, ir_node *ptr, ir_node *mem) { dbgi = get_irn_dbg_info(node); block = get_nodes_block(node); new_block = be_transform_node(block); - cond = get_Psi_cond(node, 0); + cond = get_Mux_sel(node); flags = get_flags_node(cond, &pnc); new_mem = be_transform_node(mem); new_node = new_rd_ia32_SetMem(dbgi, irg, new_block, addr.base, @@ -2233,7 +2143,7 @@ static ir_node *try_create_dest_am(ir_node *node) { ir_node *new_node; /* handle only GP modes for now... */ - if(!mode_needs_gp_reg(mode)) + if(!ia32_mode_needs_gp_reg(mode)) return NULL; while(1) { @@ -2244,6 +2154,8 @@ static ir_node *try_create_dest_am(ir_node *node) { if(is_Conv(val)) { ir_node *conv_op = get_Conv_op(val); ir_mode *pred_mode = get_irn_mode(conv_op); + if (!ia32_mode_needs_gp_reg(pred_mode)) + break; if(pred_mode == mode_b || bits <= get_mode_size_bits(pred_mode)) { val = conv_op; continue; @@ -2277,9 +2189,8 @@ static ir_node *try_create_dest_am(ir_node *node) { case iro_Sub: op1 = get_Sub_left(val); op2 = get_Sub_right(val); - if(is_Const(op2)) { - ir_fprintf(stderr, "Optimisation warning: not-normalize sub ,C" - "found\n"); + if (is_Const(op2)) { + ir_fprintf(stderr, "Optimisation warning: not-normalized sub ,C found\n"); } new_node = dest_am_binop(val, op1, op2, mem, ptr, mode, new_rd_ia32_SubMem, new_rd_ia32_SubMem8Bit, @@ -2339,7 +2250,7 @@ static ir_node *try_create_dest_am(ir_node *node) { match_dest_am | match_immediate); break; /* TODO: match ROR patterns... */ - case iro_Psi: + case iro_Mux: new_node = try_create_SetMem(val, ptr, mem); break; case iro_Minus: @@ -2372,7 +2283,11 @@ static int is_float_to_int32_conv(const ir_node *node) ir_node *conv_op; ir_mode *conv_mode; - if(get_mode_size_bits(mode) != 32 || !mode_needs_gp_reg(mode)) + if(get_mode_size_bits(mode) != 32 || !ia32_mode_needs_gp_reg(mode)) + return 0; + /* don't report unsigned as conv to 32bit, because we really need to do + * a vfist with 64bit signed in this case */ + if(!mode_is_signed(mode)) return 0; if(!is_Conv(node)) @@ -2391,78 +2306,52 @@ static int is_float_to_int32_conv(const ir_node *node) * * @return the created ia32 Store node */ -static ir_node *gen_float_const_Store(ir_node *node, ir_node *cns) { - ir_mode *mode = get_irn_mode(cns); - int size = get_mode_size_bits(mode); - tarval *tv = get_Const_tarval(cns); - ir_node *block = get_nodes_block(node); - ir_node *new_block = be_transform_node(block); - ir_node *ptr = get_Store_ptr(node); - ir_node *mem = get_Store_mem(node); - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *noreg = ia32_new_NoReg_gp(env_cg); - int ofs = 4; - ir_node *new_node; - ia32_address_t addr; - - unsigned val = get_tarval_sub_bits(tv, 0) | - (get_tarval_sub_bits(tv, 1) << 8) | - (get_tarval_sub_bits(tv, 2) << 16) | - (get_tarval_sub_bits(tv, 3) << 24); - ir_node *imm = create_Immediate(NULL, 0, val); - - /* construct store address */ - memset(&addr, 0, sizeof(addr)); - ia32_create_address_mode(&addr, ptr, /*force=*/0); - - if (addr.base == NULL) { - addr.base = noreg; - } else { - addr.base = be_transform_node(addr.base); - } - - if (addr.index == NULL) { - addr.index = noreg; - } else { - addr.index = be_transform_node(addr.index); - } - addr.mem = be_transform_node(mem); - - new_node = new_rd_ia32_Store(dbgi, irg, new_block, addr.base, - addr.index, addr.mem, imm); +static ir_node *gen_float_const_Store(ir_node *node, ir_node *cns) +{ + ir_mode *mode = get_irn_mode(cns); + unsigned size = get_mode_size_bytes(mode); + tarval *tv = get_Const_tarval(cns); + ir_node *block = get_nodes_block(node); + ir_node *new_block = be_transform_node(block); + ir_node *ptr = get_Store_ptr(node); + ir_node *mem = get_Store_mem(node); + ir_graph *irg = current_ir_graph; + dbg_info *dbgi = get_irn_dbg_info(node); + int ofs = 0; + size_t i = 0; + ir_node *ins[4]; + ia32_address_t addr; - set_irn_pinned(new_node, get_irn_pinned(node)); - set_ia32_op_type(new_node, ia32_AddrModeD); - set_ia32_ls_mode(new_node, mode_Iu); + assert(size % 4 == 0); + assert(size <= 16); - set_address(new_node, &addr); + build_address_ptr(&addr, ptr, mem); - /** add more stores if needed */ - while (size > 32) { - unsigned val = get_tarval_sub_bits(tv, ofs) | - (get_tarval_sub_bits(tv, ofs + 1) << 8) | + do { + unsigned val = + get_tarval_sub_bits(tv, ofs) | + (get_tarval_sub_bits(tv, ofs + 1) << 8) | (get_tarval_sub_bits(tv, ofs + 2) << 16) | (get_tarval_sub_bits(tv, ofs + 3) << 24); ir_node *imm = create_Immediate(NULL, 0, val); - addr.offset += 4; - addr.mem = new_node; - - new_node = new_rd_ia32_Store(dbgi, irg, new_block, addr.base, + ir_node *new_node = new_rd_ia32_Store(dbgi, irg, new_block, addr.base, addr.index, addr.mem, imm); set_irn_pinned(new_node, get_irn_pinned(node)); set_ia32_op_type(new_node, ia32_AddrModeD); set_ia32_ls_mode(new_node, mode_Iu); - set_address(new_node, &addr); - size -= 32; - ofs += 4; - } + SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); - SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); - return new_node; + ins[i++] = new_node; + + size -= 4; + ofs += 4; + addr.offset += 4; + } while (size != 0); + + return i == 1 ? ins[0] : new_rd_Sync(dbgi, irg, new_block, i, ins); } /** @@ -2554,9 +2443,15 @@ static ir_node *gen_normal_Store(ir_node *node) } else if (!ia32_cg_config.use_sse2 && is_float_to_int32_conv(val)) { val = get_Conv_op(val); - /* We can skip ALL Convs (and strict-Convs) before stores. */ + /* TODO: is this optimisation still necessary at all (middleend)? */ + /* We can skip ALL float->float up-Convs (and strict-up-Convs) before stores. */ while (is_Conv(val)) { - val = get_Conv_op(val); + ir_node *op = get_Conv_op(val); + if (!mode_is_float(get_irn_mode(op))) + break; + if (get_mode_size_bits(get_irn_mode(op)) > get_mode_size_bits(get_irn_mode(val))) + break; + val = op; } new_val = be_transform_node(val); new_node = gen_vfist(dbgi, irg, new_block, addr.base, addr.index, addr.mem, new_val, &store); @@ -2595,7 +2490,7 @@ static ir_node *gen_Store(ir_node *node) ir_mode *mode = get_irn_mode(val); if (mode_is_float(mode) && is_Const(val)) { - int transform = 1; + int transform; /* we are storing a floating point constant */ if (ia32_cg_config.use_sse2) { @@ -2690,54 +2585,12 @@ static ir_node *gen_Cond(ir_node *node) { return new_node; } -/** - * Transforms a CopyB node. - * - * @return The transformed node. - */ -static ir_node *gen_CopyB(ir_node *node) { - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_node *src = get_CopyB_src(node); - ir_node *new_src = be_transform_node(src); - ir_node *dst = get_CopyB_dst(node); - ir_node *new_dst = be_transform_node(dst); - ir_node *mem = get_CopyB_mem(node); - ir_node *new_mem = be_transform_node(mem); - ir_node *res = NULL; - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - int size = get_type_size_bytes(get_CopyB_type(node)); - int rem; - - /* If we have to copy more than 32 bytes, we use REP MOVSx and */ - /* then we need the size explicitly in ECX. */ - if (size >= 32 * 4) { - rem = size & 0x3; /* size % 4 */ - size >>= 2; - - res = new_rd_ia32_Const(dbgi, irg, block, NULL, 0, size); - add_irn_dep(res, get_irg_frame(irg)); - - res = new_rd_ia32_CopyB(dbgi, irg, block, new_dst, new_src, res, new_mem, rem); - } else { - if(size == 0) { - ir_fprintf(stderr, "Optimisation warning copyb %+F with size <4\n", - node); - } - res = new_rd_ia32_CopyB_i(dbgi, irg, block, new_dst, new_src, new_mem, size); - } - - SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node)); - - return res; -} - static ir_node *gen_be_Copy(ir_node *node) { ir_node *new_node = be_duplicate_node(node); ir_mode *mode = get_irn_mode(new_node); - if (mode_needs_gp_reg(mode)) { + if (ia32_mode_needs_gp_reg(mode)) { set_irn_mode(new_node, mode_Iu); } @@ -2811,10 +2664,10 @@ static ir_node *create_Ucomi(ir_node *node) } /** - * helper function: checks wether all Cmp projs are Lg or Eq which is needed + * helper function: checks whether all Cmp projs are Lg or Eq which is needed * to fold an and into a test node */ -static int can_fold_test_and(ir_node *node) +static bool can_fold_test_and(ir_node *node) { const ir_edge_t *edge; @@ -2823,10 +2676,84 @@ static int can_fold_test_and(ir_node *node) ir_node *proj = get_edge_src_irn(edge); pn_Cmp pnc = get_Proj_proj(proj); if(pnc != pn_Cmp_Eq && pnc != pn_Cmp_Lg) - return 0; + return false; } - return 1; + return true; +} + +/** + * returns true if it is assured, that the upper bits of a node are "clean" + * which means for a 16 or 8 bit value, that the upper bits in the register + * are 0 for unsigned and a copy of the last significant bit for unsigned + * numbers. + */ +static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode) +{ + assert(ia32_mode_needs_gp_reg(mode)); + if (get_mode_size_bits(mode) >= 32) + return true; + + if (is_Proj(transformed_node)) + return upper_bits_clean(get_Proj_pred(transformed_node), mode); + + if (is_ia32_Conv_I2I(transformed_node) + || is_ia32_Conv_I2I8Bit(transformed_node)) { + ir_mode *smaller_mode = get_ia32_ls_mode(transformed_node); + if (mode_is_signed(smaller_mode) != mode_is_signed(mode)) + return false; + if (get_mode_size_bits(smaller_mode) > get_mode_size_bits(mode)) + return false; + + return true; + } + + if (is_ia32_Shr(transformed_node) && !mode_is_signed(mode)) { + ir_node *right = get_irn_n(transformed_node, n_ia32_Shr_count); + if (is_ia32_Immediate(right) || is_ia32_Const(right)) { + const ia32_immediate_attr_t *attr + = get_ia32_immediate_attr_const(right); + if (attr->symconst == 0 + && (unsigned) attr->offset >= (32 - get_mode_size_bits(mode))) { + return true; + } + } + return upper_bits_clean(get_irn_n(transformed_node, n_ia32_Shr_val), mode); + } + + if (is_ia32_And(transformed_node) && !mode_is_signed(mode)) { + ir_node *right = get_irn_n(transformed_node, n_ia32_And_right); + if (is_ia32_Immediate(right) || is_ia32_Const(right)) { + const ia32_immediate_attr_t *attr + = get_ia32_immediate_attr_const(right); + if (attr->symconst == 0 + && (unsigned) attr->offset + <= (0xffffffff >> (32 - get_mode_size_bits(mode)))) { + return true; + } + } + /* TODO recurse? */ + } + + /* TODO recurse on Or, Xor, ... if appropriate? */ + + if (is_ia32_Immediate(transformed_node) + || is_ia32_Const(transformed_node)) { + const ia32_immediate_attr_t *attr + = get_ia32_immediate_attr_const(transformed_node); + if (mode_is_signed(mode)) { + long shifted = attr->offset >> (get_mode_size_bits(mode) - 1); + if (shifted == 0 || shifted == -1) + return true; + } else { + unsigned long shifted = (unsigned long) attr->offset; + shifted >>= get_mode_size_bits(mode); + if (shifted == 0) + return true; + } + } + + return false; } /** @@ -2854,66 +2781,46 @@ static ir_node *gen_Cmp(ir_node *node) } } - assert(mode_needs_gp_reg(cmp_mode)); + assert(ia32_mode_needs_gp_reg(cmp_mode)); - /* we prefer the Test instruction where possible except cases where - * we can use SourceAM */ + /* Prefer the Test instruction, when encountering (x & y) ==/!= 0 */ cmp_unsigned = !mode_is_signed(cmp_mode); - if (is_Const_0(right)) { - if (is_And(left) && - get_irn_n_edges(left) == 1 && - can_fold_test_and(node)) { - /* Test(and_left, and_right) */ - ir_node *and_left = get_And_left(left); - ir_node *and_right = get_And_right(left); - ir_mode *mode = get_irn_mode(and_left); - - match_arguments(&am, block, and_left, and_right, NULL, - match_commutative | - match_am | match_8bit_am | match_16bit_am | - match_am_and_immediates | match_immediate | - match_8bit | match_16bit); - if (get_mode_size_bits(mode) == 8) { - new_node = new_rd_ia32_Test8Bit(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op1, - am.new_op2, am.ins_permuted, - cmp_unsigned); - } else { - new_node = new_rd_ia32_Test(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op1, - am.new_op2, am.ins_permuted, cmp_unsigned); - } + if (is_Const_0(right) && + is_And(left) && + get_irn_n_edges(left) == 1 && + can_fold_test_and(node)) { + /* Test(and_left, and_right) */ + ir_node *and_left = get_And_left(left); + ir_node *and_right = get_And_right(left); + + /* matze: code here used mode instead of cmd_mode, I think it is always + * the same as cmp_mode, but I leave this here to see if this is really + * true... + */ + assert(get_irn_mode(and_left) == cmp_mode); + + match_arguments(&am, block, and_left, and_right, NULL, + match_commutative | + match_am | match_8bit_am | match_16bit_am | + match_am_and_immediates | match_immediate | + match_8bit | match_16bit); + + /* use 32bit compare mode if possible since the opcode is smaller */ + if (upper_bits_clean(am.new_op1, cmp_mode) && + upper_bits_clean(am.new_op2, cmp_mode)) { + cmp_mode = mode_is_signed(cmp_mode) ? mode_Is : mode_Iu; + } + + if (get_mode_size_bits(cmp_mode) == 8) { + new_node = new_rd_ia32_Test8Bit(dbgi, irg, new_block, addr->base, + addr->index, addr->mem, am.new_op1, + am.new_op2, am.ins_permuted, + cmp_unsigned); } else { - match_arguments(&am, block, NULL, left, NULL, - match_am | match_8bit_am | match_16bit_am | - match_8bit | match_16bit); - if (am.op_type == ia32_AddrModeS) { - /* Cmp(AM, 0) */ - ir_node *imm_zero = try_create_Immediate(right, 0); - if (get_mode_size_bits(cmp_mode) == 8) { - new_node = new_rd_ia32_Cmp8Bit(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op2, - imm_zero, am.ins_permuted, - cmp_unsigned); - } else { - new_node = new_rd_ia32_Cmp(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op2, - imm_zero, am.ins_permuted, cmp_unsigned); - } - } else { - /* Test(left, left) */ - if (get_mode_size_bits(cmp_mode) == 8) { - new_node = new_rd_ia32_Test8Bit(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op2, - am.new_op2, am.ins_permuted, - cmp_unsigned); - } else { - new_node = new_rd_ia32_Test(dbgi, irg, new_block, addr->base, - addr->index, addr->mem, am.new_op2, - am.new_op2, am.ins_permuted, - cmp_unsigned); - } - } + new_node = new_rd_ia32_Test(dbgi, irg, new_block, addr->base, + addr->index, addr->mem, am.new_op1, + am.new_op2, am.ins_permuted, + cmp_unsigned); } } else { /* Cmp(left, right) */ @@ -2921,6 +2828,12 @@ static ir_node *gen_Cmp(ir_node *node) match_commutative | match_am | match_8bit_am | match_16bit_am | match_am_and_immediates | match_immediate | match_8bit | match_16bit); + /* use 32bit compare mode if possible since the opcode is smaller */ + if (upper_bits_clean(am.new_op1, cmp_mode) && + upper_bits_clean(am.new_op2, cmp_mode)) { + cmp_mode = mode_is_signed(cmp_mode) ? mode_Is : mode_Iu; + } + if (get_mode_size_bits(cmp_mode) == 8) { new_node = new_rd_ia32_Cmp8Bit(dbgi, irg, new_block, addr->base, addr->index, addr->mem, am.new_op1, @@ -2933,7 +2846,6 @@ static ir_node *gen_Cmp(ir_node *node) } } set_am_attributes(new_node, &am); - assert(cmp_mode != NULL); set_ia32_ls_mode(new_node, cmp_mode); SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); @@ -2950,15 +2862,15 @@ static ir_node *create_CMov(ir_node *node, ir_node *flags, ir_node *new_flags, dbg_info *dbgi = get_irn_dbg_info(node); ir_node *block = get_nodes_block(node); ir_node *new_block = be_transform_node(block); - ir_node *val_true = get_Psi_val(node, 0); - ir_node *val_false = get_Psi_default(node); + ir_node *val_true = get_Mux_true(node); + ir_node *val_false = get_Mux_false(node); ir_node *new_node; match_flags_t match_flags; ia32_address_mode_t am; ia32_address_t *addr; assert(ia32_cg_config.use_cmov); - assert(mode_needs_gp_reg(get_irn_mode(val_true))); + assert(ia32_mode_needs_gp_reg(get_irn_mode(val_true))); addr = &am.addr; @@ -3041,25 +2953,24 @@ static ir_node *create_Doz(ir_node *psi, ir_node *a, ir_node *b) { } /** - * Transforms a Psi node into CMov. + * Transforms a Mux node into CMov. * * @return The transformed node. */ -static ir_node *gen_Psi(ir_node *node) +static ir_node *gen_Mux(ir_node *node) { dbg_info *dbgi = get_irn_dbg_info(node); ir_node *block = get_nodes_block(node); ir_node *new_block = be_transform_node(block); - ir_node *psi_true = get_Psi_val(node, 0); - ir_node *psi_default = get_Psi_default(node); - ir_node *cond = get_Psi_cond(node, 0); + ir_node *mux_true = get_Mux_true(node); + ir_node *mux_false = get_Mux_false(node); + ir_node *cond = get_Mux_sel(node); ir_mode *mode = get_irn_mode(node); pn_Cmp pnc; - assert(get_Psi_n_conds(node) == 1); assert(get_irn_mode(cond) == mode_b); - /* Note: a Psi node uses a Load two times IFF it's used in the compare AND in the result */ + /* Note: a Mux node uses a Load two times IFF it's used in the compare AND in the result */ if (mode_is_float(mode)) { ir_node *cmp = get_Proj_pred(cond); ir_node *cmp_left = get_Cmp_left(cmp); @@ -3068,34 +2979,34 @@ static ir_node *gen_Psi(ir_node *node) if (ia32_cg_config.use_sse2) { if (pnc == pn_Cmp_Lt || pnc == pn_Cmp_Le) { - if (cmp_left == psi_true && cmp_right == psi_default) { - /* psi(a <= b, a, b) => MIN */ + if (cmp_left == mux_true && cmp_right == mux_false) { + /* Mux(a <= b, a, b) => MIN */ return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMin, match_commutative | match_am | match_two_users); - } else if (cmp_left == psi_default && cmp_right == psi_true) { - /* psi(a <= b, b, a) => MAX */ + } else if (cmp_left == mux_false && cmp_right == mux_true) { + /* Mux(a <= b, b, a) => MAX */ return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMax, match_commutative | match_am | match_two_users); } } else if (pnc == pn_Cmp_Gt || pnc == pn_Cmp_Ge) { - if (cmp_left == psi_true && cmp_right == psi_default) { - /* psi(a >= b, a, b) => MAX */ + if (cmp_left == mux_true && cmp_right == mux_false) { + /* Mux(a >= b, a, b) => MAX */ return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMax, match_commutative | match_am | match_two_users); - } else if (cmp_left == psi_default && cmp_right == psi_true) { - /* psi(a >= b, b, a) => MIN */ + } else if (cmp_left == mux_false && cmp_right == mux_true) { + /* Mux(a >= b, b, a) => MIN */ return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMin, match_commutative | match_am | match_two_users); } } } - panic("cannot transform floating point Psi"); + panic("cannot transform floating point Mux"); } else { ir_node *flags; ir_node *new_node; - assert(mode_needs_gp_reg(mode)); + assert(ia32_mode_needs_gp_reg(mode)); if (is_Proj(cond)) { ir_node *cmp = get_Proj_pred(cond); @@ -3106,14 +3017,14 @@ static ir_node *gen_Psi(ir_node *node) /* check for unsigned Doz first */ if ((pnc & pn_Cmp_Gt) && !mode_is_signed(mode) && - is_Const_0(psi_default) && is_Sub(psi_true) && - get_Sub_left(psi_true) == cmp_left && get_Sub_right(psi_true) == cmp_right) { - /* Psi(a >=u b, a - b, 0) unsigned Doz */ + is_Const_0(mux_false) && is_Sub(mux_true) && + get_Sub_left(mux_true) == cmp_left && get_Sub_right(mux_true) == cmp_right) { + /* Mux(a >=u b, a - b, 0) unsigned Doz */ return create_Doz(node, cmp_left, cmp_right); } else if ((pnc & pn_Cmp_Lt) && !mode_is_signed(mode) && - is_Const_0(psi_true) && is_Sub(psi_default) && - get_Sub_left(psi_default) == cmp_left && get_Sub_right(psi_default) == cmp_right) { - /* Psi(a <=u b, 0, a - b) unsigned Doz */ + is_Const_0(mux_true) && is_Sub(mux_false) && + get_Sub_left(mux_false) == cmp_left && get_Sub_right(mux_false) == cmp_right) { + /* Mux(a <=u b, 0, a - b) unsigned Doz */ return create_Doz(node, cmp_left, cmp_right); } } @@ -3121,11 +3032,11 @@ static ir_node *gen_Psi(ir_node *node) flags = get_flags_node(cond, &pnc); - if (is_Const(psi_true) && is_Const(psi_default)) { + if (is_Const(mux_true) && is_Const(mux_false)) { /* both are const, good */ - if (is_Const_1(psi_true) && is_Const_0(psi_default)) { + if (is_Const_1(mux_true) && is_Const_0(mux_false)) { new_node = create_set_32bit(dbgi, new_block, flags, pnc, node, /*is_premuted=*/0); - } else if (is_Const_0(psi_true) && is_Const_1(psi_default)) { + } else if (is_Const_0(mux_true) && is_Const_1(mux_false)) { new_node = create_set_32bit(dbgi, new_block, flags, pnc, node, /*is_premuted=*/1); } else { /* Not that simple. */ @@ -3189,7 +3100,7 @@ static ir_node *gen_x87_fp_to_gp(ir_node *node) { } /** - * Creates a x87 strict Conv by placing a Sore and a Load + * Creates a x87 strict Conv by placing a Store and a Load */ static ir_node *gen_x87_strict_conv(ir_mode *tgt_mode, ir_node *node) { @@ -3363,6 +3274,17 @@ static ir_node *create_I2I_Conv(ir_mode *src_mode, ir_mode *tgt_mode, match_arguments(&am, block, NULL, op, NULL, match_8bit | match_16bit | match_am | match_8bit_am | match_16bit_am); + + if (upper_bits_clean(am.new_op2, smaller_mode)) { + /* unnecessary conv. in theory it shouldn't have been AM */ + assert(is_ia32_NoReg_GP(addr->base)); + assert(is_ia32_NoReg_GP(addr->index)); + assert(is_NoMem(addr->mem)); + assert(am.addr.offset == 0); + assert(am.addr.symconst_ent == NULL); + return am.new_op2; + } + if (smaller_bits == 8) { new_node = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, new_block, addr->base, addr->index, addr->mem, am.new_op2, @@ -3470,9 +3392,22 @@ static ir_node *gen_Conv(ir_node *node) { } else { res = gen_x87_gp_to_fp(node, src_mode); if(get_Conv_strict(node)) { - res = gen_x87_strict_conv(tgt_mode, res); - SET_IA32_ORIG_NODE(get_Proj_pred(res), - ia32_get_old_node_name(env_cg, node)); + /* The strict-Conv is only necessary, if the int mode has more bits + * than the float mantissa */ + size_t int_mantissa = get_mode_size_bits(src_mode) - (mode_is_signed(src_mode) ? 1 : 0); + size_t float_mantissa; + /* FIXME There is no way to get the mantissa size of a mode */ + switch (get_mode_size_bits(tgt_mode)) { + case 32: float_mantissa = 23 + 1; break; // + 1 for implicit 1 + case 64: float_mantissa = 52 + 1; break; + case 80: + case 96: float_mantissa = 64; break; + default: float_mantissa = 0; break; + } + if (float_mantissa < int_mantissa) { + res = gen_x87_strict_conv(tgt_mode, res); + SET_IA32_ORIG_NODE(get_Proj_pred(res), ia32_get_old_node_name(env_cg, node)); + } } return res; } @@ -3497,135 +3432,6 @@ static ir_node *gen_Conv(ir_node *node) { return res; } -static int check_immediate_constraint(long val, char immediate_constraint_type) -{ - switch (immediate_constraint_type) { - case 0: - return 1; - case 'I': - return val >= 0 && val <= 32; - case 'J': - return val >= 0 && val <= 63; - case 'K': - return val >= -128 && val <= 127; - case 'L': - return val == 0xff || val == 0xffff; - case 'M': - return val >= 0 && val <= 3; - case 'N': - return val >= 0 && val <= 255; - case 'O': - return val >= 0 && val <= 127; - default: - break; - } - panic("Invalid immediate constraint found"); - return 0; -} - -static ir_node *try_create_Immediate(ir_node *node, - char immediate_constraint_type) -{ - int minus = 0; - tarval *offset = NULL; - int offset_sign = 0; - long val = 0; - ir_entity *symconst_ent = NULL; - int symconst_sign = 0; - ir_mode *mode; - ir_node *cnst = NULL; - ir_node *symconst = NULL; - ir_node *new_node; - - mode = get_irn_mode(node); - if(!mode_is_int(mode) && !mode_is_reference(mode)) { - return NULL; - } - - if(is_Minus(node)) { - minus = 1; - node = get_Minus_op(node); - } - - if(is_Const(node)) { - cnst = node; - symconst = NULL; - offset_sign = minus; - } else if(is_SymConst(node)) { - cnst = NULL; - symconst = node; - symconst_sign = minus; - } else if(is_Add(node)) { - ir_node *left = get_Add_left(node); - ir_node *right = get_Add_right(node); - if(is_Const(left) && is_SymConst(right)) { - cnst = left; - symconst = right; - symconst_sign = minus; - offset_sign = minus; - } else if(is_SymConst(left) && is_Const(right)) { - cnst = right; - symconst = left; - symconst_sign = minus; - offset_sign = minus; - } - } else if(is_Sub(node)) { - ir_node *left = get_Sub_left(node); - ir_node *right = get_Sub_right(node); - if(is_Const(left) && is_SymConst(right)) { - cnst = left; - symconst = right; - symconst_sign = !minus; - offset_sign = minus; - } else if(is_SymConst(left) && is_Const(right)) { - cnst = right; - symconst = left; - symconst_sign = minus; - offset_sign = !minus; - } - } else { - return NULL; - } - - if(cnst != NULL) { - offset = get_Const_tarval(cnst); - if(tarval_is_long(offset)) { - val = get_tarval_long(offset); - } else { - ir_fprintf(stderr, "Optimisation Warning: tarval from %+F is not a " - "long?\n", cnst); - return NULL; - } - - if(!check_immediate_constraint(val, immediate_constraint_type)) - return NULL; - } - if(symconst != NULL) { - if(immediate_constraint_type != 0) { - /* we need full 32bits for symconsts */ - return NULL; - } - - /* unfortunately the assembler/linker doesn't support -symconst */ - if(symconst_sign) - return NULL; - - if(get_SymConst_kind(symconst) != symconst_addr_ent) - return NULL; - symconst_ent = get_SymConst_entity(symconst); - } - if(cnst == NULL && symconst == NULL) - return NULL; - - if(offset_sign && offset != NULL) { - offset = tarval_neg(offset); - } - - new_node = create_Immediate(symconst_ent, symconst_sign, val); - - return new_node; -} - static ir_node *create_immediate_or_transform(ir_node *node, char immediate_constraint_type) { @@ -3636,483 +3442,6 @@ static ir_node *create_immediate_or_transform(ir_node *node, return new_node; } -static const arch_register_req_t no_register_req = { - arch_register_req_type_none, - NULL, /* regclass */ - NULL, /* limit bitset */ - 0, /* same pos */ - 0 /* different pos */ -}; - -/** - * An assembler constraint. - */ -typedef struct constraint_t constraint_t; -struct constraint_t { - int is_in; - int n_outs; - const arch_register_req_t **out_reqs; - - const arch_register_req_t *req; - unsigned immediate_possible; - char immediate_type; -}; - -static void parse_asm_constraint(int pos, constraint_t *constraint, const char *c) -{ - int immediate_possible = 0; - char immediate_type = 0; - unsigned limited = 0; - const arch_register_class_t *cls = NULL; - ir_graph *irg = current_ir_graph; - struct obstack *obst = get_irg_obstack(irg); - arch_register_req_t *req; - unsigned *limited_ptr = NULL; - int p; - int same_as = -1; - - /* TODO: replace all the asserts with nice error messages */ - - if(*c == 0) { - /* a memory constraint: no need to do anything in backend about it - * (the dependencies are already respected by the memory edge of - * the node) */ - constraint->req = &no_register_req; - return; - } - - while(*c != 0) { - switch(*c) { - case ' ': - case '\t': - case '\n': - break; - - case 'a': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EAX; - break; - case 'b': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EBX; - break; - case 'c': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_ECX; - break; - case 'd': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EDX; - break; - case 'D': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EDI; - break; - case 'S': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_ESI; - break; - case 'Q': - case 'q': /* q means lower part of the regs only, this makes no - * difference to Q for us (we only assigne whole registers) */ - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EAX | 1 << REG_EBX | 1 << REG_ECX | - 1 << REG_EDX; - break; - case 'A': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EAX | 1 << REG_EDX; - break; - case 'l': - assert(cls == NULL || - (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0)); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - limited |= 1 << REG_EAX | 1 << REG_EBX | 1 << REG_ECX | - 1 << REG_EDX | 1 << REG_ESI | 1 << REG_EDI | - 1 << REG_EBP; - break; - - case 'R': - case 'r': - case 'p': - assert(cls == NULL); - cls = &ia32_reg_classes[CLASS_ia32_gp]; - break; - - case 'f': - case 't': - case 'u': - /* TODO: mark values so the x87 simulator knows about t and u */ - assert(cls == NULL); - cls = &ia32_reg_classes[CLASS_ia32_vfp]; - break; - - case 'Y': - case 'x': - assert(cls == NULL); - /* TODO: check that sse2 is supported */ - cls = &ia32_reg_classes[CLASS_ia32_xmm]; - break; - - case 'I': - case 'J': - case 'K': - case 'L': - case 'M': - case 'N': - case 'O': - assert(!immediate_possible); - immediate_possible = 1; - immediate_type = *c; - break; - case 'n': - case 'i': - assert(!immediate_possible); - immediate_possible = 1; - break; - - case 'g': - assert(!immediate_possible && cls == NULL); - immediate_possible = 1; - cls = &ia32_reg_classes[CLASS_ia32_gp]; - break; - - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - assert(constraint->is_in && "can only specify same constraint " - "on input"); - - sscanf(c, "%d%n", &same_as, &p); - if(same_as >= 0) { - c += p; - continue; - } - break; - - case 'm': - /* memory constraint no need to do anything in backend about it - * (the dependencies are already respected by the memory edge of - * the node) */ - constraint->req = &no_register_req; - return; - - case 'E': /* no float consts yet */ - case 'F': /* no float consts yet */ - case 's': /* makes no sense on x86 */ - case 'X': /* we can't support that in firm */ - case 'o': - case 'V': - case '<': /* no autodecrement on x86 */ - case '>': /* no autoincrement on x86 */ - case 'C': /* sse constant not supported yet */ - case 'G': /* 80387 constant not supported yet */ - case 'y': /* we don't support mmx registers yet */ - case 'Z': /* not available in 32 bit mode */ - case 'e': /* not available in 32 bit mode */ - panic("unsupported asm constraint '%c' found in (%+F)", - *c, current_ir_graph); - break; - default: - panic("unknown asm constraint '%c' found in (%+F)", *c, - current_ir_graph); - break; - } - ++c; - } - - if(same_as >= 0) { - const arch_register_req_t *other_constr; - - assert(cls == NULL && "same as and register constraint not supported"); - assert(!immediate_possible && "same as and immediate constraint not " - "supported"); - assert(same_as < constraint->n_outs && "wrong constraint number in " - "same_as constraint"); - - other_constr = constraint->out_reqs[same_as]; - - req = obstack_alloc(obst, sizeof(req[0])); - req->cls = other_constr->cls; - req->type = arch_register_req_type_should_be_same; - req->limited = NULL; - req->other_same = 1U << pos; - req->other_different = 0; - - /* switch constraints. This is because in firm we have same_as - * constraints on the output constraints while in the gcc asm syntax - * they are specified on the input constraints */ - constraint->req = other_constr; - constraint->out_reqs[same_as] = req; - constraint->immediate_possible = 0; - return; - } - - if(immediate_possible && cls == NULL) { - cls = &ia32_reg_classes[CLASS_ia32_gp]; - } - assert(!immediate_possible || cls == &ia32_reg_classes[CLASS_ia32_gp]); - assert(cls != NULL); - - if(immediate_possible) { - assert(constraint->is_in - && "immediate make no sense for output constraints"); - } - /* todo: check types (no float input on 'r' constrained in and such... */ - - if(limited != 0) { - req = obstack_alloc(obst, sizeof(req[0]) + sizeof(unsigned)); - limited_ptr = (unsigned*) (req+1); - } else { - req = obstack_alloc(obst, sizeof(req[0])); - } - memset(req, 0, sizeof(req[0])); - - if(limited != 0) { - req->type = arch_register_req_type_limited; - *limited_ptr = limited; - req->limited = limited_ptr; - } else { - req->type = arch_register_req_type_normal; - } - req->cls = cls; - - constraint->req = req; - constraint->immediate_possible = immediate_possible; - constraint->immediate_type = immediate_type; -} - -static void parse_clobber(ir_node *node, int pos, constraint_t *constraint, - const char *clobber) -{ - ir_graph *irg = get_irn_irg(node); - struct obstack *obst = get_irg_obstack(irg); - const arch_register_t *reg = NULL; - int c; - size_t r; - arch_register_req_t *req; - const arch_register_class_t *cls; - unsigned *limited; - - (void) pos; - - /* TODO: construct a hashmap instead of doing linear search for clobber - * register */ - for(c = 0; c < N_CLASSES; ++c) { - cls = & ia32_reg_classes[c]; - for(r = 0; r < cls->n_regs; ++r) { - const arch_register_t *temp_reg = arch_register_for_index(cls, r); - if(strcmp(temp_reg->name, clobber) == 0 - || (c == CLASS_ia32_gp && strcmp(temp_reg->name+1, clobber) == 0)) { - reg = temp_reg; - break; - } - } - if(reg != NULL) - break; - } - if(reg == NULL) { - panic("Register '%s' mentioned in asm clobber is unknown\n", clobber); - return; - } - - assert(reg->index < 32); - - limited = obstack_alloc(obst, sizeof(limited[0])); - *limited = 1 << reg->index; - - req = obstack_alloc(obst, sizeof(req[0])); - memset(req, 0, sizeof(req[0])); - req->type = arch_register_req_type_limited; - req->cls = cls; - req->limited = limited; - - constraint->req = req; - constraint->immediate_possible = 0; - constraint->immediate_type = 0; -} - -static int is_memory_op(const ir_asm_constraint *constraint) -{ - ident *id = constraint->constraint; - const char *str = get_id_str(id); - const char *c; - - for(c = str; *c != '\0'; ++c) { - if(*c == 'm') - return 1; - } - - return 0; -} - -/** - * generates code for a ASM node - */ -static ir_node *gen_ASM(ir_node *node) -{ - int i, arity; - ir_graph *irg = current_ir_graph; - ir_node *block = get_nodes_block(node); - ir_node *new_block = be_transform_node(block); - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node **in; - ir_node *new_node; - int out_arity; - int n_out_constraints; - int n_clobbers; - const arch_register_req_t **out_reg_reqs; - const arch_register_req_t **in_reg_reqs; - ia32_asm_reg_t *register_map; - unsigned reg_map_size = 0; - struct obstack *obst; - const ir_asm_constraint *in_constraints; - const ir_asm_constraint *out_constraints; - ident **clobbers; - constraint_t parsed_constraint; - - arity = get_irn_arity(node); - in = alloca(arity * sizeof(in[0])); - memset(in, 0, arity * sizeof(in[0])); - - n_out_constraints = get_ASM_n_output_constraints(node); - n_clobbers = get_ASM_n_clobbers(node); - out_arity = n_out_constraints + n_clobbers; - /* hack to keep space for mem proj */ - if(n_clobbers > 0) - out_arity += 1; - - in_constraints = get_ASM_input_constraints(node); - out_constraints = get_ASM_output_constraints(node); - clobbers = get_ASM_clobbers(node); - - /* construct output constraints */ - obst = get_irg_obstack(irg); - out_reg_reqs = obstack_alloc(obst, out_arity * sizeof(out_reg_reqs[0])); - parsed_constraint.out_reqs = out_reg_reqs; - parsed_constraint.n_outs = n_out_constraints; - parsed_constraint.is_in = 0; - - for(i = 0; i < out_arity; ++i) { - const char *c; - - if(i < n_out_constraints) { - const ir_asm_constraint *constraint = &out_constraints[i]; - c = get_id_str(constraint->constraint); - parse_asm_constraint(i, &parsed_constraint, c); - - if(constraint->pos > reg_map_size) - reg_map_size = constraint->pos; - - out_reg_reqs[i] = parsed_constraint.req; - } else if(i < out_arity - 1) { - ident *glob_id = clobbers [i - n_out_constraints]; - assert(glob_id != NULL); - c = get_id_str(glob_id); - parse_clobber(node, i, &parsed_constraint, c); - - out_reg_reqs[i+1] = parsed_constraint.req; - } - } - if(n_clobbers > 1) - out_reg_reqs[n_out_constraints] = &no_register_req; - - /* construct input constraints */ - in_reg_reqs = obstack_alloc(obst, arity * sizeof(in_reg_reqs[0])); - parsed_constraint.is_in = 1; - for(i = 0; i < arity; ++i) { - const ir_asm_constraint *constraint = &in_constraints[i]; - ident *constr_id = constraint->constraint; - const char *c = get_id_str(constr_id); - - parse_asm_constraint(i, &parsed_constraint, c); - in_reg_reqs[i] = parsed_constraint.req; - - if(constraint->pos > reg_map_size) - reg_map_size = constraint->pos; - - if(parsed_constraint.immediate_possible) { - ir_node *pred = get_irn_n(node, i); - char imm_type = parsed_constraint.immediate_type; - ir_node *immediate = try_create_Immediate(pred, imm_type); - - if(immediate != NULL) { - in[i] = immediate; - } - } - } - reg_map_size++; - - register_map = NEW_ARR_D(ia32_asm_reg_t, obst, reg_map_size); - memset(register_map, 0, reg_map_size * sizeof(register_map[0])); - - for(i = 0; i < n_out_constraints; ++i) { - const ir_asm_constraint *constraint = &out_constraints[i]; - unsigned pos = constraint->pos; - - assert(pos < reg_map_size); - register_map[pos].use_input = 0; - register_map[pos].valid = 1; - register_map[pos].memory = is_memory_op(constraint); - register_map[pos].inout_pos = i; - register_map[pos].mode = constraint->mode; - } - - /* transform inputs */ - for(i = 0; i < arity; ++i) { - const ir_asm_constraint *constraint = &in_constraints[i]; - unsigned pos = constraint->pos; - ir_node *pred = get_irn_n(node, i); - ir_node *transformed; - - assert(pos < reg_map_size); - register_map[pos].use_input = 1; - register_map[pos].valid = 1; - register_map[pos].memory = is_memory_op(constraint); - register_map[pos].inout_pos = i; - register_map[pos].mode = constraint->mode; - - if(in[i] != NULL) - continue; - - transformed = be_transform_node(pred); - in[i] = transformed; - } - - new_node = new_rd_ia32_Asm(dbgi, irg, new_block, arity, in, out_arity, - get_ASM_text(node), register_map); - - set_ia32_out_req_all(new_node, out_reg_reqs); - set_ia32_in_req_all(new_node, in_reg_reqs); - - SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node)); - - return new_node; -} - /** * Transforms a FrameAddr into an ia32 Add. */ @@ -4229,8 +3558,7 @@ static ir_node *gen_be_Return(ir_node *node) { arity, in); copy_node_attr(barrier, new_barrier); be_duplicate_deps(barrier, new_barrier); - be_set_transformed_node(barrier, new_barrier); - mark_irn_visited(barrier); + set_transformed_and_mark(barrier, new_barrier); /* transform normally */ return be_duplicate_node(node); @@ -4244,7 +3572,8 @@ static ir_node *gen_be_AddSP(ir_node *node) ir_node *sz = get_irn_n(node, be_pos_AddSP_size); ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp); - return gen_binop(node, sp, sz, new_rd_ia32_SubSP, match_am); + return gen_binop(node, sp, sz, new_rd_ia32_SubSP, + match_am | match_immediate); } /** @@ -4255,41 +3584,8 @@ static ir_node *gen_be_SubSP(ir_node *node) ir_node *sz = get_irn_n(node, be_pos_SubSP_size); ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp); - return gen_binop(node, sp, sz, new_rd_ia32_AddSP, match_am); -} - -/** - * This function just sets the register for the Unknown node - * as this is not done during register allocation because Unknown - * is an "ignore" node. - */ -static ir_node *gen_Unknown(ir_node *node) { - ir_mode *mode = get_irn_mode(node); - - if (mode_is_float(mode)) { - if (ia32_cg_config.use_sse2) { - return ia32_new_Unknown_xmm(env_cg); - } else { - /* Unknown nodes are buggy in x87 simulator, use zero for now... */ - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *block = get_irg_start_block(irg); - ir_node *ret = new_rd_ia32_vfldz(dbgi, irg, block); - - /* Const Nodes before the initial IncSP are a bad idea, because - * they could be spilled and we have no SP ready at that point yet. - * So add a dependency to the initial frame pointer calculation to - * avoid that situation. - */ - add_irn_dep(ret, get_irg_frame(irg)); - return ret; - } - } else if (mode_needs_gp_reg(mode)) { - return ia32_new_Unknown_gp(env_cg); - } else { - panic("unsupported Unknown-Mode"); - } - return NULL; + return gen_binop(node, sp, sz, new_rd_ia32_AddSP, + match_am | match_immediate); } /** @@ -4302,7 +3598,7 @@ static ir_node *gen_Phi(ir_node *node) { ir_mode *mode = get_irn_mode(node); ir_node *phi; - if(mode_needs_gp_reg(mode)) { + if(ia32_mode_needs_gp_reg(mode)) { /* we shouldn't have any 64bit stuff around anymore */ assert(get_mode_size_bits(mode) <= 32); /* all integer operations are on 32bit registers now */ @@ -4393,81 +3689,6 @@ static ir_node *gen_Bound(ir_node *node) } -typedef ir_node *construct_load_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \ - ir_node *mem); - -typedef ir_node *construct_store_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \ - ir_node *val, ir_node *mem); - -/** - * Transforms a lowered Load into a "real" one. - */ -static ir_node *gen_lowered_Load(ir_node *node, construct_load_func func) -{ - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_node *ptr = get_irn_n(node, 0); - ir_node *new_ptr = be_transform_node(ptr); - ir_node *mem = get_irn_n(node, 1); - ir_node *new_mem = be_transform_node(mem); - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - ir_mode *mode = get_ia32_ls_mode(node); - ir_node *noreg = ia32_new_NoReg_gp(env_cg); - ir_node *new_op; - - new_op = func(dbgi, irg, block, new_ptr, noreg, new_mem); - - set_ia32_op_type(new_op, ia32_AddrModeS); - set_ia32_am_offs_int(new_op, get_ia32_am_offs_int(node)); - set_ia32_am_scale(new_op, get_ia32_am_scale(node)); - set_ia32_am_sc(new_op, get_ia32_am_sc(node)); - if (is_ia32_am_sc_sign(node)) - set_ia32_am_sc_sign(new_op); - set_ia32_ls_mode(new_op, mode); - if (is_ia32_use_frame(node)) { - set_ia32_frame_ent(new_op, get_ia32_frame_ent(node)); - set_ia32_use_frame(new_op); - } - - SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node)); - - return new_op; -} - -/** - * Transforms a lowered Store into a "real" one. - */ -static ir_node *gen_lowered_Store(ir_node *node, construct_store_func func) -{ - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_node *ptr = get_irn_n(node, 0); - ir_node *new_ptr = be_transform_node(ptr); - ir_node *val = get_irn_n(node, 1); - ir_node *new_val = be_transform_node(val); - ir_node *mem = get_irn_n(node, 2); - ir_node *new_mem = be_transform_node(mem); - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *noreg = ia32_new_NoReg_gp(env_cg); - ir_mode *mode = get_ia32_ls_mode(node); - ir_node *new_op; - long am_offs; - - new_op = func(dbgi, irg, block, new_ptr, noreg, new_val, new_mem); - - am_offs = get_ia32_am_offs_int(node); - add_ia32_am_offs_int(new_op, am_offs); - - set_ia32_op_type(new_op, ia32_AddrModeD); - set_ia32_ls_mode(new_op, mode); - set_ia32_frame_ent(new_op, get_ia32_frame_ent(node)); - set_ia32_use_frame(new_op); - - SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node)); - - return new_op; -} - static ir_node *gen_ia32_l_ShlDep(ir_node *node) { ir_node *left = get_irn_n(node, n_ia32_l_ShlDep_val); @@ -4517,71 +3738,6 @@ static ir_node *gen_ia32_l_Adc(ir_node *node) match_mode_neutral); } -/** - * Transforms an ia32_l_vfild into a "real" ia32_vfild node - * - * @param node The node to transform - * @return the created ia32 vfild node - */ -static ir_node *gen_ia32_l_vfild(ir_node *node) { - return gen_lowered_Load(node, new_rd_ia32_vfild); -} - -/** - * Transforms an ia32_l_Load into a "real" ia32_Load node - * - * @param node The node to transform - * @return the created ia32 Load node - */ -static ir_node *gen_ia32_l_Load(ir_node *node) { - return gen_lowered_Load(node, new_rd_ia32_Load); -} - -/** - * Transforms an ia32_l_Store into a "real" ia32_Store node - * - * @param node The node to transform - * @return the created ia32 Store node - */ -static ir_node *gen_ia32_l_Store(ir_node *node) { - return gen_lowered_Store(node, new_rd_ia32_Store); -} - -/** - * Transforms a l_vfist into a "real" vfist node. - * - * @param node The node to transform - * @return the created ia32 vfist node - */ -static ir_node *gen_ia32_l_vfist(ir_node *node) { - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_node *ptr = get_irn_n(node, 0); - ir_node *new_ptr = be_transform_node(ptr); - ir_node *val = get_irn_n(node, 1); - ir_node *new_val = be_transform_node(val); - ir_node *mem = get_irn_n(node, 2); - ir_node *new_mem = be_transform_node(mem); - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *noreg = ia32_new_NoReg_gp(env_cg); - ir_mode *mode = get_ia32_ls_mode(node); - ir_node *memres, *fist; - long am_offs; - - memres = gen_vfist(dbgi, irg, block, new_ptr, noreg, new_mem, new_val, &fist); - am_offs = get_ia32_am_offs_int(node); - add_ia32_am_offs_int(fist, am_offs); - - set_ia32_op_type(fist, ia32_AddrModeD); - set_ia32_ls_mode(fist, mode); - set_ia32_frame_ent(fist, get_ia32_frame_ent(node)); - set_ia32_use_frame(fist); - - SET_IA32_ORIG_NODE(fist, ia32_get_old_node_name(env_cg, node)); - - return memres; -} - /** * Transforms a l_MulS into a "real" MulS node. * @@ -4650,7 +3806,9 @@ static ir_node *gen_lowered_64bit_shifts(ir_node *node, ir_node *high, /* the shift amount can be any mode that is bigger than 5 bits, since all * other bits are ignored anyway */ - while (is_Conv(count) && get_irn_n_edges(count) == 1) { + while (is_Conv(count) && + get_irn_n_edges(count) == 1 && + mode_is_int(get_irn_mode(count))) { assert(get_mode_size_bits(get_irn_mode(count)) >= 5); count = get_Conv_op(count); } @@ -4763,7 +3921,7 @@ static ir_node *gen_ia32_l_FloattoLL(ir_node *node) { * the BAD transformer. */ static ir_node *bad_transform(ir_node *node) { - panic("No transform function for %+F available.\n", node); + panic("No transform function for %+F available.", node); return NULL; } @@ -4824,8 +3982,7 @@ static ir_node *gen_Proj_be_AddSP(ir_node *node) { return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_SubSP_M); } - assert(0); - return new_rd_Unknown(irg, get_irn_mode(node)); + panic("No idea how to transform proj->AddSP"); } /** @@ -4848,8 +4005,7 @@ static ir_node *gen_Proj_be_SubSP(ir_node *node) { return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_AddSP_M); } - assert(0); - return new_rd_Unknown(irg, get_irn_mode(node)); + panic("No idea how to transform proj->SubSP"); } /** @@ -4947,8 +4103,7 @@ static ir_node *gen_Proj_Load(ir_node *node) { return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, 1); } - assert(0); - return new_rd_Unknown(irg, get_irn_mode(node)); + panic("No idea how to transform proj"); } /** @@ -4960,7 +4115,6 @@ static ir_node *gen_Proj_DivMod(ir_node *node) { ir_node *new_pred = be_transform_node(pred); ir_graph *irg = current_ir_graph; dbg_info *dbgi = get_irn_dbg_info(node); - ir_mode *mode = get_irn_mode(node); long proj = get_Proj_proj(node); assert(is_ia32_Div(new_pred) || is_ia32_IDiv(new_pred)); @@ -5015,8 +4169,7 @@ static ir_node *gen_Proj_DivMod(ir_node *node) { break; } - assert(0); - return new_rd_Unknown(irg, mode); + panic("No idea how to transform proj->DivMod"); } /** @@ -5028,7 +4181,6 @@ static ir_node *gen_Proj_CopyB(ir_node *node) { ir_node *new_pred = be_transform_node(pred); ir_graph *irg = current_ir_graph; dbg_info *dbgi = get_irn_dbg_info(node); - ir_mode *mode = get_irn_mode(node); long proj = get_Proj_proj(node); switch(proj) { @@ -5043,8 +4195,7 @@ static ir_node *gen_Proj_CopyB(ir_node *node) { break; } - assert(0); - return new_rd_Unknown(irg, mode); + panic("No idea how to transform proj->CopyB"); } /** @@ -5056,7 +4207,6 @@ static ir_node *gen_Proj_Quot(ir_node *node) { ir_node *new_pred = be_transform_node(pred); ir_graph *irg = current_ir_graph; dbg_info *dbgi = get_irn_dbg_info(node); - ir_mode *mode = get_irn_mode(node); long proj = get_Proj_proj(node); switch(proj) { @@ -5080,26 +4230,26 @@ static ir_node *gen_Proj_Quot(ir_node *node) { break; } - assert(0); - return new_rd_Unknown(irg, mode); -} - -/** - * Transform the Thread Local Storage Proj. - */ -static ir_node *gen_Proj_tls(ir_node *node) { - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_graph *irg = current_ir_graph; - dbg_info *dbgi = NULL; - ir_node *res = new_rd_ia32_LdTls(dbgi, irg, block, mode_Iu); - - return res; + panic("No idea how to transform proj->Quot"); } static ir_node *gen_be_Call(ir_node *node) { ir_node *res = be_duplicate_node(node); + ir_type *call_tp; + be_node_add_flags(res, -1, arch_irn_flags_modify_flags); + /* Run the x87 simulator if the call returns a float value */ + call_tp = be_Call_get_type(node); + if (get_method_n_ress(call_tp) > 0) { + ir_type *const res_type = get_method_res_type(call_tp, 0); + ir_mode *const res_mode = get_type_mode(res_type); + + if (res_mode != NULL && mode_is_float(res_mode)) { + env_cg->do_x87_sim = 1; + } + } + return res; } @@ -5231,6 +4381,22 @@ static ir_node *gen_Proj_Bound(ir_node *node) } } +static ir_node *gen_Proj_ASM(ir_node *node) +{ + ir_node *pred; + ir_node *new_pred; + ir_node *block; + + if (get_irn_mode(node) != mode_M) + return be_duplicate_node(node); + + pred = get_Proj_pred(node); + new_pred = be_transform_node(pred); + block = get_nodes_block(new_pred); + return new_r_Proj(current_ir_graph, block, new_pred, mode_M, + get_ia32_n_res(new_pred) + 1); +} + /** * Transform and potentially renumber Proj nodes. */ @@ -5244,11 +4410,12 @@ static ir_node *gen_Proj(ir_node *node) { if (proj == pn_Store_M) { return be_transform_node(pred); } else { - assert(0); - return new_r_Bad(current_ir_graph); + panic("No idea how to transform proj->Store"); } case iro_Load: return gen_Proj_Load(node); + case iro_ASM: + return gen_Proj_ASM(node); case iro_Div: case iro_Mod: case iro_DivMod: @@ -5293,7 +4460,7 @@ static ir_node *gen_Proj(ir_node *node) { } else { #endif ir_mode *mode = get_irn_mode(node); - if (mode_needs_gp_reg(mode)) { + if (ia32_mode_needs_gp_reg(mode)) { ir_node *new_pred = be_transform_node(pred); ir_node *block = be_transform_node(get_nodes_block(node)); ir_node *new_proj = new_r_Proj(current_ir_graph, block, new_pred, @@ -5351,8 +4518,7 @@ static void register_transformers(void) GEN(Cmp); GEN(ASM); GEN(CopyB); - BAD(Mux); - GEN(Psi); + GEN(Mux); GEN(Proj); GEN(Phi); GEN(IJmp); @@ -5370,10 +4536,6 @@ static void register_transformers(void) GEN(ia32_l_ShrD); GEN(ia32_l_Sub); GEN(ia32_l_Sbb); - GEN(ia32_l_vfild); - GEN(ia32_l_Load); - GEN(ia32_l_vfist); - GEN(ia32_l_Store); GEN(ia32_l_LLtoFloat); GEN(ia32_l_FloattoLL); @@ -5429,8 +4591,8 @@ static void ia32_pretransform_node(void *arch_cg) { } /** - * Walker, checks if all ia32 nodes producing more than one result have - * its Projs, otherwise creates new Projs and keep them using a be_Keep node. + * Walker, checks if all ia32 nodes producing more than one result have their + * Projs, otherwise creates new Projs and keeps them using a be_Keep node. */ static void add_missing_keep_walker(ir_node *node, void *data) { @@ -5456,7 +4618,10 @@ static void add_missing_keep_walker(ir_node *node, void *data) ir_node *proj = get_edge_src_irn(edge); int pn = get_Proj_proj(proj); - assert(get_irn_mode(proj) == mode_M || pn < n_outs); + if (get_irn_mode(proj) == mode_M) + continue; + + assert(pn < n_outs); found_projs |= 1 << pn; } @@ -5473,7 +4638,7 @@ static void add_missing_keep_walker(ir_node *node, void *data) continue; } - req = get_ia32_out_req(node, i); + req = get_ia32_out_req(node, i); cls = req->cls; if(cls == NULL) { continue; @@ -5515,9 +4680,9 @@ void ia32_transform_graph(ia32_code_gen_t *cg) { env_cg = cg; initial_fpcw = NULL; -BE_TIMER_PUSH(t_heights); + BE_TIMER_PUSH(t_heights); heights = heights_new(irg); -BE_TIMER_POP(t_heights); + BE_TIMER_POP(t_heights); ia32_calculate_non_address_mode_nodes(cg->birg); /* the transform phase is not safe for CSE (yet) because several nodes get