X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fsparc%2Fsparc_transform.c;h=74d08767a404c6b0b8984f4986f08a89d4433fda;hb=f8cc15664f571aa7ef89d6f6bc8d5bd2b8ca7d53;hp=7894cf18e791982e8b903364af0cb47811d1b59d;hpb=8ccfe04ca59ff56fc32b2323b80cee2a5194694d;p=libfirm diff --git a/ir/be/sparc/sparc_transform.c b/ir/be/sparc/sparc_transform.c index 7894cf18e..74d08767a 100644 --- a/ir/be/sparc/sparc_transform.c +++ b/ir/be/sparc/sparc_transform.c @@ -21,7 +21,6 @@ * @file * @brief code selection (transform FIRM into SPARC FIRM) * @author Hannes Rapp, Matthias Braun - * @version $Id$ */ #include "config.h" @@ -42,11 +41,11 @@ #include "error.h" #include "util.h" -#include "../benode.h" -#include "../beirg.h" -#include "../beutil.h" -#include "../betranshlp.h" -#include "../beabihelper.h" +#include "benode.h" +#include "beirg.h" +#include "beutil.h" +#include "betranshlp.h" +#include "beabihelper.h" #include "bearch_sparc_t.h" #include "sparc_nodes_attr.h" @@ -61,62 +60,29 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;) -static beabi_helper_env_t *abihelper; static const arch_register_t *sp_reg = &sparc_registers[REG_SP]; static const arch_register_t *fp_reg = &sparc_registers[REG_FRAME_POINTER]; static calling_convention_t *current_cconv = NULL; +static be_stackorder_t *stackorder; static ir_mode *mode_gp; static ir_mode *mode_flags; static ir_mode *mode_fp; static ir_mode *mode_fp2; //static ir_mode *mode_fp4; static pmap *node_to_stack; - -static const arch_register_t *const caller_saves[] = { - &sparc_registers[REG_G1], - &sparc_registers[REG_G2], - &sparc_registers[REG_G3], - &sparc_registers[REG_G4], - &sparc_registers[REG_O0], - &sparc_registers[REG_O1], - &sparc_registers[REG_O2], - &sparc_registers[REG_O3], - &sparc_registers[REG_O4], - &sparc_registers[REG_O5], - - &sparc_registers[REG_F0], - &sparc_registers[REG_F1], - &sparc_registers[REG_F2], - &sparc_registers[REG_F3], - &sparc_registers[REG_F4], - &sparc_registers[REG_F5], - &sparc_registers[REG_F6], - &sparc_registers[REG_F7], - &sparc_registers[REG_F8], - &sparc_registers[REG_F9], - &sparc_registers[REG_F10], - &sparc_registers[REG_F11], - &sparc_registers[REG_F12], - &sparc_registers[REG_F13], - &sparc_registers[REG_F14], - &sparc_registers[REG_F15], - &sparc_registers[REG_F16], - &sparc_registers[REG_F17], - &sparc_registers[REG_F18], - &sparc_registers[REG_F19], - &sparc_registers[REG_F20], - &sparc_registers[REG_F21], - &sparc_registers[REG_F22], - &sparc_registers[REG_F23], - &sparc_registers[REG_F24], - &sparc_registers[REG_F25], - &sparc_registers[REG_F26], - &sparc_registers[REG_F27], - &sparc_registers[REG_F28], - &sparc_registers[REG_F29], - &sparc_registers[REG_F30], - &sparc_registers[REG_F31], -}; +static size_t start_mem_offset; +static ir_node *start_mem; +static size_t start_g0_offset; +static ir_node *start_g0; +static size_t start_g7_offset; +static ir_node *start_g7; +static size_t start_sp_offset; +static ir_node *start_sp; +static size_t start_fp_offset; +static ir_node *start_fp; +static ir_node *frame_base; +static size_t start_params_offset; +static size_t start_callee_saves_offset; static const arch_register_t *const omit_fp_callee_saves[] = { &sparc_registers[REG_L0], @@ -190,11 +156,86 @@ static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op, * are 0 for unsigned and a copy of the last significant bit for signed * numbers. */ -static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode) +static bool upper_bits_clean(ir_node *node, ir_mode *mode) { - (void) transformed_node; - (void) mode; - /* TODO */ + switch ((ir_opcode)get_irn_opcode(node)) { + case iro_And: + if (!mode_is_signed(mode)) { + return upper_bits_clean(get_And_left(node), mode) + || upper_bits_clean(get_And_right(node), mode); + } + /* FALLTHROUGH */ + case iro_Or: + case iro_Eor: + return upper_bits_clean(get_binop_left(node), mode) + && upper_bits_clean(get_binop_right(node), mode); + + case iro_Shr: + if (mode_is_signed(mode)) { + return false; /* TODO */ + } else { + ir_node *right = get_Shr_right(node); + if (is_Const(right)) { + ir_tarval *tv = get_Const_tarval(right); + long val = get_tarval_long(tv); + if (val >= 32 - (long)get_mode_size_bits(mode)) + return true; + } + return upper_bits_clean(get_Shr_left(node), mode); + } + + case iro_Shrs: + return upper_bits_clean(get_Shrs_left(node), mode); + + case iro_Const: { + ir_tarval *tv = get_Const_tarval(node); + long val = get_tarval_long(tv); + if (mode_is_signed(mode)) { + long shifted = val >> (get_mode_size_bits(mode)-1); + return shifted == 0 || shifted == -1; + } else { + unsigned long shifted = (unsigned long)val; + shifted >>= get_mode_size_bits(mode)-1; + shifted >>= 1; + return shifted == 0; + } + } + + case iro_Conv: { + ir_mode *dest_mode = get_irn_mode(node); + ir_node *op = get_Conv_op(node); + ir_mode *src_mode = get_irn_mode(op); + unsigned src_bits = get_mode_size_bits(src_mode); + unsigned dest_bits = get_mode_size_bits(dest_mode); + /* downconvs are a nop */ + if (src_bits <= dest_bits) + return upper_bits_clean(op, mode); + if (dest_bits <= get_mode_size_bits(mode) + && mode_is_signed(dest_mode) == mode_is_signed(mode)) + return true; + return false; + } + + case iro_Proj: { + ir_node *pred = get_Proj_pred(node); + switch (get_irn_opcode(pred)) { + case iro_Load: { + ir_mode *load_mode = get_Load_mode(pred); + unsigned load_bits = get_mode_size_bits(load_mode); + unsigned bits = get_mode_size_bits(mode); + if (load_bits > bits) + return false; + if (mode_is_signed(mode) != mode_is_signed(load_mode)) + return false; + return true; + } + default: + break; + } + } + default: + break; + } return false; } @@ -210,8 +251,7 @@ static ir_node *gen_extension(dbg_info *dbgi, ir_node *block, ir_node *op, ir_mode *orig_mode) { int bits = get_mode_size_bits(orig_mode); - if (bits == 32) - return op; + assert(bits < 32); if (mode_is_signed(orig_mode)) { return gen_sign_extension(dbgi, block, op, bits); @@ -247,9 +287,12 @@ static bool is_imm_encodeable(const ir_node *node) return sparc_is_value_imm_encodeable(value); } -static bool needs_extension(ir_mode *mode) +static bool needs_extension(ir_node *op) { - return get_mode_size_bits(mode) < get_mode_size_bits(mode_gp); + ir_mode *mode = get_irn_mode(op); + if (get_mode_size_bits(mode) >= get_mode_size_bits(mode_gp)) + return false; + return !upper_bits_clean(op, mode); } /** @@ -276,7 +319,7 @@ static bool is_downconv(const ir_node *node) get_mode_size_bits(dest_mode) <= get_mode_size_bits(src_mode); } -static ir_node *sparc_skip_downconv(ir_node *node) +static ir_node *skip_downconv(ir_node *node) { while (is_downconv(node)) { node = get_Conv_op(node); @@ -304,8 +347,8 @@ static ir_node *gen_helper_binop_args(ir_node *node, ir_mode *mode2; if (flags & MATCH_MODE_NEUTRAL) { - op1 = sparc_skip_downconv(op1); - op2 = sparc_skip_downconv(op2); + op1 = skip_downconv(op1); + op2 = skip_downconv(op2); } mode1 = get_irn_mode(op1); mode2 = get_irn_mode(op2); @@ -316,13 +359,13 @@ static ir_node *gen_helper_binop_args(ir_node *node, if (is_imm_encodeable(op2)) { int32_t immediate = get_tarval_long(get_Const_tarval(op2)); new_op1 = be_transform_node(op1); - if (! (flags & MATCH_MODE_NEUTRAL) && needs_extension(mode1)) { + if (! (flags & MATCH_MODE_NEUTRAL) && needs_extension(op1)) { new_op1 = gen_extension(dbgi, block, new_op1, mode1); } return new_imm(dbgi, block, new_op1, NULL, immediate); } new_op2 = be_transform_node(op2); - if (! (flags & MATCH_MODE_NEUTRAL) && needs_extension(mode2)) { + if (! (flags & MATCH_MODE_NEUTRAL) && needs_extension(op2)) { new_op2 = gen_extension(dbgi, block, new_op2, mode2); } @@ -332,7 +375,7 @@ static ir_node *gen_helper_binop_args(ir_node *node, } new_op1 = be_transform_node(op1); - if (! (flags & MATCH_MODE_NEUTRAL) && needs_extension(mode1)) { + if (! (flags & MATCH_MODE_NEUTRAL) && needs_extension(op1)) { new_op1 = gen_extension(dbgi, block, new_op1, mode1); } return new_reg(dbgi, block, new_op1, new_op2); @@ -381,19 +424,19 @@ static ir_node *gen_helper_unfpop(ir_node *node, ir_mode *mode, new_unop_fp_func new_func_double, new_unop_fp_func new_func_quad) { - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_node *op1 = get_binop_left(node); - ir_node *new_op1 = be_transform_node(op1); - dbg_info *dbgi = get_irn_dbg_info(node); - unsigned bits = get_mode_size_bits(mode); + ir_node *block = be_transform_node(get_nodes_block(node)); + ir_node *op = get_unop_op(node); + ir_node *new_op = be_transform_node(op); + dbg_info *dbgi = get_irn_dbg_info(node); + unsigned bits = get_mode_size_bits(mode); switch (bits) { case 32: - return new_func_single(dbgi, block, new_op1, mode); + return new_func_single(dbgi, block, new_op, mode); case 64: - return new_func_double(dbgi, block, new_op1, mode); + return new_func_double(dbgi, block, new_op, mode); case 128: - return new_func_quad(dbgi, block, new_op1, mode); + return new_func_quad(dbgi, block, new_op, mode); default: break; } @@ -439,9 +482,49 @@ static ir_node *gen_helper_binopx(ir_node *node, match_flags_t match_flags, } -static ir_node *get_g0(void) +static ir_node *get_g0(ir_graph *irg) +{ + if (start_g0 == NULL) { + /* this is already the transformed start node */ + ir_node *start = get_irg_start(irg); + assert(is_sparc_Start(start)); + start_g0 = new_r_Proj(start, mode_gp, start_g0_offset); + } + return start_g0; +} + +static ir_node *get_g7(ir_graph *irg) +{ + if (start_g7 == NULL) { + ir_node *start = get_irg_start(irg); + assert(is_sparc_Start(start)); + start_g7 = new_r_Proj(start, mode_gp, start_g7_offset); + } + return start_g7; +} + +static ir_node *make_tls_offset(dbg_info *dbgi, ir_node *block, + ir_entity *entity, int32_t offset) +{ + ir_node *hi = new_bd_sparc_SetHi(dbgi, block, entity, offset); + ir_node *low = new_bd_sparc_Xor_imm(dbgi, block, hi, entity, offset); + return low; +} + +static ir_node *make_address(dbg_info *dbgi, ir_node *block, ir_entity *entity, + int32_t offset) { - return be_prolog_get_reg_value(abihelper, &sparc_registers[REG_G0]); + if (get_entity_owner(entity) == get_tls_type()) { + ir_graph *irg = get_irn_irg(block); + ir_node *g7 = get_g7(irg); + ir_node *offsetn = make_tls_offset(dbgi, block, entity, offset); + ir_node *add = new_bd_sparc_Add_reg(dbgi, block, g7, offsetn); + return add; + } else { + ir_node *hi = new_bd_sparc_SetHi(dbgi, block, entity, offset); + ir_node *low = new_bd_sparc_Or_imm(dbgi, block, hi, entity, offset); + return low; + } } typedef struct address_t { @@ -475,15 +558,28 @@ static void match_address(ir_node *ptr, address_t *address, bool use_ptr2) * won't save anything but produce multiple sethi+or combinations with * just different offsets */ if (is_SymConst(base) && get_irn_n_edges(base) == 1) { - dbg_info *dbgi = get_irn_dbg_info(ptr); - ir_node *block = get_nodes_block(ptr); - ir_node *new_block = be_transform_node(block); - entity = get_SymConst_entity(base); - base = new_bd_sparc_SetHi(dbgi, new_block, entity, offset); - } else if (use_ptr2 && is_Add(base) && entity == NULL && offset == 0) { + ir_entity *sc_entity = get_SymConst_entity(base); + dbg_info *dbgi = get_irn_dbg_info(ptr); + ir_node *block = get_nodes_block(ptr); + ir_node *new_block = be_transform_node(block); + + if (get_entity_owner(sc_entity) == get_tls_type()) { + if (!use_ptr2) { + goto only_offset; + } else { + ptr2 = make_tls_offset(dbgi, new_block, sc_entity, offset); + offset = 0; + base = get_g7(get_irn_irg(base)); + } + } else { + entity = sc_entity; + base = new_bd_sparc_SetHi(dbgi, new_block, entity, offset); + } + } else if (use_ptr2 && is_Add(base) && offset == 0) { ptr2 = be_transform_node(get_Add_right(base)); base = be_transform_node(get_Add_left(base)); } else { +only_offset: if (sparc_is_value_imm_encodeable(offset)) { base = be_transform_node(base); } else { @@ -624,9 +720,9 @@ static ir_node *gen_SubX_t(ir_node *node) new_bd_sparc_SubX_reg, new_bd_sparc_SubX_imm); } -static ir_node *create_ldf(dbg_info *dbgi, ir_node *block, ir_node *ptr, - ir_node *mem, ir_mode *mode, ir_entity *entity, - long offset, bool is_frame_entity) +ir_node *create_ldf(dbg_info *dbgi, ir_node *block, ir_node *ptr, + ir_node *mem, ir_mode *mode, ir_entity *entity, + long offset, bool is_frame_entity) { unsigned bits = get_mode_size_bits(mode); assert(mode_is_float(mode)); @@ -643,10 +739,10 @@ static ir_node *create_ldf(dbg_info *dbgi, ir_node *block, ir_node *ptr, } } -static ir_node *create_stf(dbg_info *dbgi, ir_node *block, ir_node *value, - ir_node *ptr, ir_node *mem, ir_mode *mode, - ir_entity *entity, long offset, - bool is_frame_entity) +ir_node *create_stf(dbg_info *dbgi, ir_node *block, ir_node *value, + ir_node *ptr, ir_node *mem, ir_mode *mode, + ir_entity *entity, long offset, + bool is_frame_entity) { unsigned bits = get_mode_size_bits(mode); assert(mode_is_float(mode)); @@ -718,7 +814,6 @@ static ir_node *gen_Store(ir_node *node) ir_node *mem = get_Store_mem(node); ir_node *new_mem = be_transform_node(mem); ir_node *val = get_Store_value(node); - ir_node *new_val = be_transform_node(val); ir_mode *mode = get_irn_mode(val); dbg_info *dbgi = get_irn_dbg_info(node); ir_node *new_store = NULL; @@ -729,12 +824,21 @@ static ir_node *gen_Store(ir_node *node) } if (mode_is_float(mode)) { + ir_node *new_val = be_transform_node(val); /* TODO: variants with reg+reg address mode */ match_address(ptr, &address, false); new_store = create_stf(dbgi, block, new_val, address.ptr, new_mem, mode, address.entity, address.offset, false); } else { - assert(get_mode_size_bits(mode) <= 32); + ir_node *new_val; + unsigned dest_bits = get_mode_size_bits(mode); + while (is_downconv(node) + && get_mode_size_bits(get_irn_mode(node)) >= dest_bits) { + val = get_Conv_op(val); + } + new_val = be_transform_node(val); + + assert(dest_bits <= 32); match_address(ptr, &address, true); if (address.ptr2 != NULL) { assert(address.entity == NULL && address.offset == 0); @@ -783,8 +887,13 @@ static ir_node *gen_Mulh(ir_node *node) if (mode_is_float(mode)) panic("FP not supported yet"); - mul = gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm); - return new_r_Proj(mul, mode_gp, pn_sparc_Mulh_low); + if (mode_is_signed(mode)) { + mul = gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_SMulh_reg, new_bd_sparc_SMulh_imm); + return new_r_Proj(mul, mode_gp, pn_sparc_SMulh_low); + } else { + mul = gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_UMulh_reg, new_bd_sparc_UMulh_imm); + return new_r_Proj(mul, mode_gp, pn_sparc_UMulh_low); + } } static ir_node *gen_sign_extension_value(ir_node *node) @@ -832,7 +941,8 @@ static ir_node *gen_Div(ir_node *node) new_right); } } else { - ir_node *left_high = get_g0(); + ir_graph *irg = get_irn_irg(node); + ir_node *left_high = get_g0(irg); if (is_imm_encodeable(right)) { int32_t immediate = get_tarval_long(get_Const_tarval(right)); res = new_bd_sparc_UDiv_imm(dbgi, new_block, left_high, left_low, @@ -855,7 +965,8 @@ static ir_node *gen_Div(ir_node *node) static ir_node *gen_Not(ir_node *node) { ir_node *op = get_Not_op(node); - ir_node *zero = get_g0(); + ir_graph *irg = get_irn_irg(node); + ir_node *zero = get_g0(irg); dbg_info *dbgi = get_irn_dbg_info(node); ir_node *block = be_transform_node(get_nodes_block(node)); ir_node *new_op = be_transform_node(op); @@ -871,22 +982,41 @@ static ir_node *gen_helper_bitop(ir_node *node, new_binop_reg_func new_reg, new_binop_imm_func new_imm, new_binop_reg_func new_not_reg, - new_binop_imm_func new_not_imm) + new_binop_imm_func new_not_imm, + match_flags_t flags) { ir_node *op1 = get_binop_left(node); ir_node *op2 = get_binop_right(node); if (is_Not(op1)) { return gen_helper_binop_args(node, op2, get_Not_op(op1), - MATCH_MODE_NEUTRAL, + flags, new_not_reg, new_not_imm); } if (is_Not(op2)) { return gen_helper_binop_args(node, op1, get_Not_op(op2), - MATCH_MODE_NEUTRAL, + flags, new_not_reg, new_not_imm); } + if (is_Const(op2) && get_irn_n_edges(op2) == 1) { + ir_tarval *tv = get_Const_tarval(op2); + long value = get_tarval_long(tv); + if (!sparc_is_value_imm_encodeable(value)) { + long notvalue = ~value; + if ((notvalue & 0x3ff) == 0) { + 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 *new_op2 + = new_bd_sparc_SetHi(NULL, new_block, NULL, notvalue); + ir_node *new_op1 = be_transform_node(op1); + ir_node *result + = new_not_reg(dbgi, new_block, new_op1, new_op2); + return result; + } + } + } return gen_helper_binop_args(node, op1, op2, - MATCH_MODE_NEUTRAL | MATCH_COMMUTATIVE, + flags | MATCH_COMMUTATIVE, new_reg, new_imm); } @@ -896,7 +1026,8 @@ static ir_node *gen_And(ir_node *node) new_bd_sparc_And_reg, new_bd_sparc_And_imm, new_bd_sparc_AndN_reg, - new_bd_sparc_AndN_imm); + new_bd_sparc_AndN_imm, + MATCH_MODE_NEUTRAL); } static ir_node *gen_Or(ir_node *node) @@ -905,7 +1036,8 @@ static ir_node *gen_Or(ir_node *node) new_bd_sparc_Or_reg, new_bd_sparc_Or_imm, new_bd_sparc_OrN_reg, - new_bd_sparc_OrN_imm); + new_bd_sparc_OrN_imm, + MATCH_MODE_NEUTRAL); } static ir_node *gen_Eor(ir_node *node) @@ -914,21 +1046,31 @@ static ir_node *gen_Eor(ir_node *node) new_bd_sparc_Xor_reg, new_bd_sparc_Xor_imm, new_bd_sparc_XNor_reg, - new_bd_sparc_XNor_imm); + new_bd_sparc_XNor_imm, + MATCH_MODE_NEUTRAL); } static ir_node *gen_Shl(ir_node *node) { + ir_mode *mode = get_irn_mode(node); + if (get_mode_modulo_shift(mode) != 32) + panic("modulo_shift!=32 not supported by sparc backend"); return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm); } static ir_node *gen_Shr(ir_node *node) { + ir_mode *mode = get_irn_mode(node); + if (get_mode_modulo_shift(mode) != 32) + panic("modulo_shift!=32 not supported by sparc backend"); return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Srl_reg, new_bd_sparc_Srl_imm); } static ir_node *gen_Shrs(ir_node *node) { + ir_mode *mode = get_irn_mode(node); + if (get_mode_modulo_shift(mode) != 32) + panic("modulo_shift!=32 not supported by sparc backend"); return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm); } @@ -952,7 +1094,7 @@ static ir_node *gen_Minus(ir_node *node) dbgi = get_irn_dbg_info(node); op = get_Minus_op(node); new_op = be_transform_node(op); - zero = get_g0(); + zero = get_g0(get_irn_irg(node)); return new_bd_sparc_Sub_reg(dbgi, block, zero, new_op); } @@ -1014,9 +1156,10 @@ static ir_node *gen_Const(ir_node *node) value = get_tarval_long(tv); if (value == 0) { - return get_g0(); + return get_g0(get_irn_irg(node)); } else if (sparc_is_value_imm_encodeable(value)) { - return new_bd_sparc_Or_imm(dbgi, block, get_g0(), NULL, value); + ir_graph *irg = get_irn_irg(node); + return new_bd_sparc_Or_imm(dbgi, block, get_g0(irg), NULL, value); } else { ir_node *hi = new_bd_sparc_SetHi(dbgi, block, NULL, value); if ((value & 0x3ff) != 0) { @@ -1027,39 +1170,23 @@ static ir_node *gen_Const(ir_node *node) } } -static ir_mode *get_cmp_mode(ir_node *b_value) -{ - ir_node *op; - - if (!is_Cmp(b_value)) - panic("can't determine cond signednes (no cmp)"); - op = get_Cmp_left(b_value); - return get_irn_mode(op); -} - -static ir_node *make_address(dbg_info *dbgi, ir_node *block, ir_entity *entity, - int32_t offset) +static ir_node *gen_Switch(ir_node *node) { - ir_node *hi = new_bd_sparc_SetHi(dbgi, block, entity, offset); - ir_node *low = new_bd_sparc_Or_imm(dbgi, block, hi, entity, offset); + dbg_info *dbgi = get_irn_dbg_info(node); + ir_node *block = get_nodes_block(node); + ir_node *new_block = be_transform_node(block); + ir_graph *irg = get_irn_irg(block); + ir_node *selector = get_Switch_selector(node); + ir_node *new_selector = be_transform_node(selector); + const ir_switch_table *table = get_Switch_table(node); + unsigned n_outs = get_Switch_n_outs(node); + ir_entity *entity; + ir_node *table_address; + ir_node *idx; + ir_node *load; + ir_node *address; - if (get_entity_owner(entity) == get_tls_type()) - panic("thread local storage not supported yet in sparc backend"); - return low; -} - -static ir_node *gen_SwitchJmp(ir_node *node) -{ - dbg_info *dbgi = get_irn_dbg_info(node); - ir_node *block = be_transform_node(get_nodes_block(node)); - ir_node *selector = get_Cond_selector(node); - ir_node *new_selector = be_transform_node(selector); - long default_pn = get_Cond_default_proj(node); - ir_entity *entity; - ir_node *table_address; - ir_node *idx; - ir_node *load; - ir_node *address; + table = ir_switch_table_duplicate(irg, table); /* switch with smaller mode not implemented yet */ assert(get_mode_size_bits(get_irn_mode(selector)) == 32); @@ -1069,48 +1196,39 @@ static ir_node *gen_SwitchJmp(ir_node *node) add_entity_linkage(entity, IR_LINKAGE_CONSTANT); /* construct base address */ - table_address = make_address(dbgi, block, entity, 0); + table_address = make_address(dbgi, new_block, entity, 0); /* scale index */ - idx = new_bd_sparc_Sll_imm(dbgi, block, new_selector, NULL, 2); + idx = new_bd_sparc_Sll_imm(dbgi, new_block, new_selector, NULL, 2); /* load from jumptable */ - load = new_bd_sparc_Ld_reg(dbgi, block, table_address, idx, + load = new_bd_sparc_Ld_reg(dbgi, new_block, table_address, idx, get_irg_no_mem(current_ir_graph), mode_gp); address = new_r_Proj(load, mode_gp, pn_sparc_Ld_res); - return new_bd_sparc_SwitchJmp(dbgi, block, address, default_pn, entity); + return new_bd_sparc_SwitchJmp(dbgi, new_block, address, n_outs, table, entity); } static ir_node *gen_Cond(ir_node *node) { ir_node *selector = get_Cond_selector(node); - ir_mode *mode = get_irn_mode(selector); + ir_node *cmp_left; ir_mode *cmp_mode; ir_node *block; ir_node *flag_node; - bool is_unsigned; ir_relation relation; dbg_info *dbgi; - // switch/case jumps - if (mode != mode_b) { - return gen_SwitchJmp(node); - } - - // regular if/else jumps - assert(is_Cmp(selector)); - - cmp_mode = get_cmp_mode(selector); - + /* note: after lower_mode_b we are guaranteed to have a Cmp input */ block = be_transform_node(get_nodes_block(node)); dbgi = get_irn_dbg_info(node); + cmp_left = get_Cmp_left(selector); + cmp_mode = get_irn_mode(cmp_left); flag_node = be_transform_node(selector); relation = get_Cmp_relation(selector); - is_unsigned = !mode_is_signed(cmp_mode); if (mode_is_float(cmp_mode)) { - assert(!is_unsigned); return new_bd_sparc_fbfcc(dbgi, block, flag_node, relation); } else { + bool is_unsigned = !mode_is_signed(cmp_mode); return new_bd_sparc_Bicc(dbgi, block, flag_node, relation, is_unsigned); } } @@ -1151,19 +1269,34 @@ static ir_node *gen_Cmp(ir_node *node) new_bd_sparc_AndCCZero_reg, new_bd_sparc_AndCCZero_imm, new_bd_sparc_AndNCCZero_reg, - new_bd_sparc_AndNCCZero_imm); + new_bd_sparc_AndNCCZero_imm, + MATCH_NONE); } else if (is_Or(op1)) { return gen_helper_bitop(op1, new_bd_sparc_OrCCZero_reg, new_bd_sparc_OrCCZero_imm, new_bd_sparc_OrNCCZero_reg, - new_bd_sparc_OrNCCZero_imm); + new_bd_sparc_OrNCCZero_imm, + MATCH_NONE); } else if (is_Eor(op1)) { return gen_helper_bitop(op1, new_bd_sparc_XorCCZero_reg, new_bd_sparc_XorCCZero_imm, new_bd_sparc_XNorCCZero_reg, - new_bd_sparc_XNorCCZero_imm); + new_bd_sparc_XNorCCZero_imm, + MATCH_NONE); + } else if (is_Add(op1)) { + return gen_helper_binop(op1, MATCH_COMMUTATIVE, + new_bd_sparc_AddCCZero_reg, + new_bd_sparc_AddCCZero_imm); + } else if (is_Sub(op1)) { + return gen_helper_binop(op1, MATCH_NONE, + new_bd_sparc_SubCCZero_reg, + new_bd_sparc_SubCCZero_imm); + } else if (is_Mul(op1)) { + return gen_helper_binop(op1, MATCH_COMMUTATIVE, + new_bd_sparc_MulCCZero_reg, + new_bd_sparc_MulCCZero_imm); } } @@ -1283,13 +1416,13 @@ static ir_node *gen_Conv(ir_node *node) if (src_mode == mode_b) panic("ConvB not lowered %+F", node); - new_op = be_transform_node(op); if (src_mode == dst_mode) - return new_op; + return be_transform_node(op); if (mode_is_float(src_mode) || mode_is_float(dst_mode)) { assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented"); + new_op = be_transform_node(op); if (mode_is_float(src_mode)) { if (mode_is_float(dst_mode)) { /* float -> float conv */ @@ -1309,15 +1442,13 @@ static ir_node *gen_Conv(ir_node *node) } return create_itof(dbgi, block, new_op, dst_mode); } - } else if (src_mode == mode_b) { - panic("ConvB not lowered %+F", node); } else { /* complete in gp registers */ int min_bits; ir_mode *min_mode; - if (src_bits == dst_bits) { + if (src_bits == dst_bits || dst_mode == mode_b) { /* kill unnecessary conv */ - return new_op; + return be_transform_node(op); } if (src_bits < dst_bits) { @@ -1328,9 +1459,10 @@ static ir_node *gen_Conv(ir_node *node) min_mode = dst_mode; } - if (upper_bits_clean(new_op, min_mode)) { - return new_op; + if (upper_bits_clean(op, min_mode)) { + return be_transform_node(op); } + new_op = be_transform_node(op); if (mode_is_signed(min_mode)) { return gen_sign_extension(dbgi, block, new_op, min_bits); @@ -1348,82 +1480,13 @@ static ir_node *gen_Unknown(ir_node *node) ir_node *block = be_transform_node(get_nodes_block(node)); return gen_float_const(NULL, block, get_mode_null(mode)); } else if (mode_needs_gp_reg(mode)) { - return get_g0(); + ir_graph *irg = get_irn_irg(node); + return get_g0(irg); } panic("Unexpected Unknown mode"); } -/** - * Produces the type which sits between the stack args and the locals on the - * stack. - */ -static ir_type *sparc_get_between_type(void) -{ - static ir_type *between_type = NULL; - static ir_type *between_type0 = NULL; - - if (current_cconv->omit_fp) { - if (between_type0 == NULL) { - between_type0 - = new_type_class(new_id_from_str("sparc_between_type")); - set_type_size_bytes(between_type0, 0); - } - return between_type0; - } - - if (between_type == NULL) { - between_type = new_type_class(new_id_from_str("sparc_between_type")); - set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE); - } - - return between_type; -} - -static void create_stacklayout(ir_graph *irg) -{ - ir_entity *entity = get_irg_entity(irg); - ir_type *function_type = get_entity_type(entity); - be_stack_layout_t *layout = be_get_irg_stack_layout(irg); - ir_type *arg_type; - int p; - int n_params; - - /* calling conventions must be decided by now */ - assert(current_cconv != NULL); - - /* construct argument type */ - arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8))); - n_params = get_method_n_params(function_type); - for (p = 0; p < n_params; ++p) { - reg_or_stackslot_t *param = ¤t_cconv->parameters[p]; - char buf[128]; - ident *id; - - if (param->type == NULL) - continue; - - snprintf(buf, sizeof(buf), "param_%d", p); - id = new_id_from_str(buf); - param->entity = new_entity(arg_type, id, param->type); - set_entity_offset(param->entity, param->offset); - } - - memset(layout, 0, sizeof(*layout)); - - layout->frame_type = get_irg_frame_type(irg); - layout->between_type = sparc_get_between_type(); - layout->arg_type = arg_type; - layout->initial_offset = 0; - layout->initial_bias = 0; - layout->sp_relative = current_cconv->omit_fp; - - assert(N_FRAME_TYPES == 3); - layout->order[0] = layout->frame_type; - layout->order[1] = layout->between_type; - layout->order[2] = layout->arg_type; -} - /** * transform the start node to the prolog code */ @@ -1435,54 +1498,141 @@ static ir_node *gen_Start(ir_node *node) ir_node *block = get_nodes_block(node); ir_node *new_block = be_transform_node(block); dbg_info *dbgi = get_irn_dbg_info(node); + struct obstack *obst = be_get_be_obst(irg); + const arch_register_req_t *req; + size_t n_outs; ir_node *start; size_t i; + size_t o; + + /* start building list of start constraints */ + assert(obstack_object_size(obst) == 0); - /* stackpointer is important at function prolog */ - be_prolog_add_reg(abihelper, sp_reg, + /* calculate number of outputs */ + n_outs = 4; /* memory, g0, g7, sp */ + if (!current_cconv->omit_fp) + ++n_outs; /* framepointer */ + /* function parameters */ + n_outs += current_cconv->n_param_regs; + /* callee saves */ + if (current_cconv->omit_fp) { + n_outs += ARRAY_SIZE(omit_fp_callee_saves); + } + + start = new_bd_sparc_Start(dbgi, new_block, n_outs); + + o = 0; + + /* first output is memory */ + start_mem_offset = o; + arch_set_irn_register_req_out(start, o, arch_no_register_req); + ++o; + + /* the zero register */ + start_g0_offset = o; + req = be_create_reg_req(obst, &sparc_registers[REG_G0], + arch_register_req_type_ignore); + arch_set_irn_register_req_out(start, o, req); + arch_set_irn_register_out(start, o, &sparc_registers[REG_G0]); + ++o; + + /* g7 is used for TLS data */ + start_g7_offset = o; + req = be_create_reg_req(obst, &sparc_registers[REG_G7], + arch_register_req_type_ignore); + arch_set_irn_register_req_out(start, o, req); + arch_set_irn_register_out(start, o, &sparc_registers[REG_G7]); + ++o; + + /* we need an output for the stackpointer */ + start_sp_offset = o; + req = be_create_reg_req(obst, sp_reg, arch_register_req_type_produces_sp | arch_register_req_type_ignore); - be_prolog_add_reg(abihelper, &sparc_registers[REG_G0], - arch_register_req_type_ignore); + arch_set_irn_register_req_out(start, o, req); + arch_set_irn_register_out(start, o, sp_reg); + ++o; + + if (!current_cconv->omit_fp) { + start_fp_offset = o; + req = be_create_reg_req(obst, fp_reg, arch_register_req_type_ignore); + arch_set_irn_register_req_out(start, o, req); + arch_set_irn_register_out(start, o, fp_reg); + ++o; + } + /* function parameters in registers */ + start_params_offset = o; for (i = 0; i < get_method_n_params(function_type); ++i) { const reg_or_stackslot_t *param = ¤t_cconv->parameters[i]; - if (param->reg0 != NULL) { - be_prolog_add_reg(abihelper, param->reg0, - arch_register_req_type_none); + const arch_register_t *reg0 = param->reg0; + const arch_register_t *reg1 = param->reg1; + if (reg0 != NULL) { + arch_set_irn_register_req_out(start, o, reg0->single_req); + arch_set_irn_register_out(start, o, reg0); + ++o; } - if (param->reg1 != NULL) { - be_prolog_add_reg(abihelper, param->reg1, - arch_register_req_type_none); + if (reg1 != NULL) { + arch_set_irn_register_req_out(start, o, reg1->single_req); + arch_set_irn_register_out(start, o, reg1); + ++o; } } /* we need the values of the callee saves (Note: non omit-fp mode has no * callee saves) */ + start_callee_saves_offset = o; if (current_cconv->omit_fp) { size_t n_callee_saves = ARRAY_SIZE(omit_fp_callee_saves); size_t c; for (c = 0; c < n_callee_saves; ++c) { - be_prolog_add_reg(abihelper, omit_fp_callee_saves[c], - arch_register_req_type_none); + const arch_register_t *reg = omit_fp_callee_saves[c]; + arch_set_irn_register_req_out(start, o, reg->single_req); + arch_set_irn_register_out(start, o, reg); + ++o; } - } else { - be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore); } + assert(n_outs == o); - start = be_prolog_create_start(abihelper, dbgi, new_block); return start; } +static ir_node *get_initial_sp(ir_graph *irg) +{ + if (start_sp == NULL) { + ir_node *start = get_irg_start(irg); + start_sp = new_r_Proj(start, mode_gp, start_sp_offset); + } + return start_sp; +} + +static ir_node *get_initial_fp(ir_graph *irg) +{ + if (start_fp == NULL) { + ir_node *start = get_irg_start(irg); + start_fp = new_r_Proj(start, mode_gp, start_fp_offset); + } + return start_fp; +} + +static ir_node *get_initial_mem(ir_graph *irg) +{ + if (start_mem == NULL) { + ir_node *start = get_irg_start(irg); + start_mem = new_r_Proj(start, mode_M, start_mem_offset); + } + return start_mem; +} + static ir_node *get_stack_pointer_for(ir_node *node) { /* get predecessor in stack_order list */ - ir_node *stack_pred = be_get_stack_pred(abihelper, node); + ir_node *stack_pred = be_get_stack_pred(stackorder, node); ir_node *stack; if (stack_pred == NULL) { /* first stack user in the current block. We can simply use the * initial sp_proj for it */ - ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg); - return sp_proj; + ir_graph *irg = get_irn_irg(node); + return get_initial_sp(irg); } be_transform_node(stack_pred); @@ -1500,46 +1650,67 @@ static ir_node *get_stack_pointer_for(ir_node *node) static ir_node *gen_Return(ir_node *node) { ir_node *block = get_nodes_block(node); + ir_graph *irg = get_irn_irg(node); ir_node *new_block = be_transform_node(block); dbg_info *dbgi = get_irn_dbg_info(node); ir_node *mem = get_Return_mem(node); ir_node *new_mem = be_transform_node(mem); ir_node *sp = get_stack_pointer_for(node); size_t n_res = get_Return_n_ress(node); + struct obstack *be_obst = be_get_be_obst(irg); ir_node *bereturn; + ir_node **in; + const arch_register_req_t **reqs; size_t i; + size_t p; + size_t n_ins; + + /* estimate number of return values */ + n_ins = 2 + n_res; /* memory + stackpointer, return values */ + if (current_cconv->omit_fp) + n_ins += ARRAY_SIZE(omit_fp_callee_saves); + + in = ALLOCAN(ir_node*, n_ins); + reqs = OALLOCN(be_obst, const arch_register_req_t*, n_ins); + p = 0; - be_epilog_begin(abihelper); - be_epilog_set_memory(abihelper, new_mem); - /* connect stack pointer with initial stack pointer. fix_stack phase - will later serialize all stack pointer adjusting nodes */ - be_epilog_add_reg(abihelper, sp_reg, - arch_register_req_type_produces_sp | arch_register_req_type_ignore, - sp); + in[p] = new_mem; + reqs[p] = arch_no_register_req; + ++p; + + in[p] = sp; + reqs[p] = sp_reg->single_req; + ++p; /* result values */ for (i = 0; i < n_res; ++i) { ir_node *res_value = get_Return_res(node, i); ir_node *new_res_value = be_transform_node(res_value); const reg_or_stackslot_t *slot = ¤t_cconv->results[i]; - const arch_register_t *reg = slot->reg0; - assert(slot->reg1 == NULL); - be_epilog_add_reg(abihelper, reg, arch_register_req_type_none, - new_res_value); + assert(slot->req1 == NULL); + in[p] = new_res_value; + reqs[p] = slot->req0; + ++p; } /* callee saves */ if (current_cconv->omit_fp) { - size_t n_callee_saves = ARRAY_SIZE(omit_fp_callee_saves); + ir_node *start = get_irg_start(irg); + size_t n_callee_saves = ARRAY_SIZE(omit_fp_callee_saves); for (i = 0; i < n_callee_saves; ++i) { const arch_register_t *reg = omit_fp_callee_saves[i]; + ir_mode *mode = reg->reg_class->mode; ir_node *value - = be_prolog_get_reg_value(abihelper, reg); - be_epilog_add_reg(abihelper, reg, arch_register_req_type_none, - value); + = new_r_Proj(start, mode, i + start_callee_saves_offset); + in[p] = value; + reqs[p] = reg->single_req; + ++p; } } + assert(p == n_ins); + + bereturn = new_bd_sparc_Return_reg(dbgi, new_block, n_ins, in); + arch_set_irn_register_reqs_in(bereturn, reqs); - bereturn = be_epilog_create_return(abihelper, dbgi, new_block); return bereturn; } @@ -1598,8 +1769,8 @@ static void bitcast_float_to_int(dbg_info *dbgi, ir_node *block, set_irn_pinned(ld, op_pin_state_floats); result[1] = new_r_Proj(ld2, mode_gp, pn_sparc_Ld_res); - arch_irn_add_flags(ld, (arch_irn_flags_t)sparc_arch_irn_flag_needs_64bit_spillslot); - arch_irn_add_flags(ld2, (arch_irn_flags_t)sparc_arch_irn_flag_needs_64bit_spillslot); + arch_add_irn_flags(ld, (arch_irn_flags_t)sparc_arch_irn_flag_needs_64bit_spillslot); + arch_add_irn_flags(ld2, (arch_irn_flags_t)sparc_arch_irn_flag_needs_64bit_spillslot); } else { assert(bits == 32); result[1] = NULL; @@ -1617,26 +1788,31 @@ static ir_node *gen_Call(ir_node *node) dbg_info *dbgi = get_irn_dbg_info(node); ir_type *type = get_Call_type(node); size_t n_params = get_Call_n_params(node); + size_t n_ress = get_method_n_ress(type); /* max inputs: memory, callee, register arguments */ ir_node **sync_ins = ALLOCAN(ir_node*, n_params); struct obstack *obst = be_get_be_obst(irg); calling_convention_t *cconv = sparc_decide_calling_convention(type, NULL); size_t n_param_regs = cconv->n_param_regs; - unsigned max_inputs = 2 + n_param_regs; + /* param-regs + mem + stackpointer + callee */ + unsigned max_inputs = 3 + n_param_regs; ir_node **in = ALLOCAN(ir_node*, max_inputs); const arch_register_req_t **in_req = OALLOCNZ(obst, const arch_register_req_t*, max_inputs); int in_arity = 0; int sync_arity = 0; int n_caller_saves - = sizeof(caller_saves)/sizeof(caller_saves[0]); + = rbitset_popcount(cconv->caller_saves, N_SPARC_REGISTERS); ir_entity *entity = NULL; ir_node *new_frame = get_stack_pointer_for(node); + bool aggregate_return + = get_method_calling_convention(type) & cc_compound_ret; ir_node *incsp; int mem_pos; ir_node *res; size_t p; + size_t r; int i; int o; int out_arity; @@ -1668,6 +1844,7 @@ static ir_node *gen_Call(ir_node *node) ir_mode *mode = get_type_mode(param_type); ir_node *new_values[2]; ir_node *str; + int offset; if (mode_is_float(mode) && param->reg0 != NULL) { unsigned size_bits = get_mode_size_bits(mode); @@ -1700,18 +1877,20 @@ static ir_node *gen_Call(ir_node *node) mode = mode_gp; } - /* create a parameter frame if necessary */ + /* we need to skip over our save area when constructing the call + * arguments on stack */ + offset = param->offset + SPARC_MIN_STACKSIZE; + if (mode_is_float(mode)) { str = create_stf(dbgi, new_block, new_value, incsp, new_mem, - mode, NULL, param->offset, true); + mode, NULL, offset, true); } else { str = new_bd_sparc_St_imm(dbgi, new_block, new_value, incsp, - new_mem, mode, NULL, param->offset, true); + new_mem, mode, NULL, offset, true); } set_irn_pinned(str, op_pin_state_floats); sync_ins[sync_arity++] = str; } - assert(in_arity <= (int)max_inputs); /* construct memory input */ if (sync_arity == 0) { @@ -1729,28 +1908,43 @@ static ir_node *gen_Call(ir_node *node) in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req; ++in_arity; } + assert(in_arity <= (int)max_inputs); /* outputs: * - memory + * - results * - caller saves */ - out_arity = 1 + n_caller_saves; + out_arity = 1 + cconv->n_reg_results + n_caller_saves; /* create call node */ if (entity != NULL) { res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity, - entity, 0); + entity, 0, aggregate_return); } else { - res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity); + res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity, + aggregate_return); } - arch_set_in_register_reqs(res, in_req); + arch_set_irn_register_reqs_in(res, in_req); /* create output register reqs */ o = 0; - arch_set_out_register_req(res, o++, arch_no_register_req); - for (i = 0; i < n_caller_saves; ++i) { - const arch_register_t *reg = caller_saves[i]; - arch_set_out_register_req(res, o++, reg->single_req); + arch_set_irn_register_req_out(res, o++, arch_no_register_req); + /* add register requirements for the result regs */ + for (r = 0; r < n_ress; ++r) { + const reg_or_stackslot_t *result_info = &cconv->results[r]; + const arch_register_req_t *req = result_info->req0; + if (req != NULL) { + arch_set_irn_register_req_out(res, o++, req); + } + assert(result_info->req1 == NULL); + } + for (i = 0; i < N_SPARC_REGISTERS; ++i) { + const arch_register_t *reg; + if (!rbitset_is_set(cconv->caller_saves, i)) + continue; + reg = &sparc_registers[i]; + arch_set_irn_register_req_out(res, o++, reg->single_req); } assert(o == out_arity); @@ -1783,14 +1977,106 @@ static ir_node *gen_Sel(ir_node *node) /* must be the frame pointer all other sels must have been lowered * already */ assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr))); - /* we should not have value types from parameters anymore - they should be - lowered */ - assert(get_entity_owner(entity) != - get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node))))); return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity, 0); } +static ir_node *gen_Alloc(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_type *type = get_Alloc_type(node); + ir_node *size = get_Alloc_count(node); + ir_node *stack_pred = get_stack_pointer_for(node); + ir_node *subsp; + if (get_Alloc_where(node) != stack_alloc) + panic("only stack-alloc supported in sparc backend (at %+F)", node); + /* lowerer should have transformed all allocas to byte size */ + if (type != get_unknown_type() && get_type_size_bytes(type) != 1) + panic("Found non-byte alloc in sparc backend (at %+F)", node); + + if (is_Const(size)) { + ir_tarval *tv = get_Const_tarval(size); + long sizel = get_tarval_long(tv); + subsp = be_new_IncSP(sp_reg, new_block, stack_pred, sizel, 0); + set_irn_dbg_info(subsp, dbgi); + } else { + ir_node *new_size = be_transform_node(size); + subsp = new_bd_sparc_SubSP(dbgi, new_block, stack_pred, new_size); + arch_set_irn_register(subsp, sp_reg); + } + + /* if we are the last IncSP producer in a block then we have to keep + * the stack value. + * Note: This here keeps all producers which is more than necessary */ + keep_alive(subsp); + + pmap_insert(node_to_stack, node, subsp); + /* the "result" is the unmodified sp value */ + return stack_pred; +} + +static ir_node *gen_Proj_Alloc(ir_node *node) +{ + ir_node *alloc = get_Proj_pred(node); + long pn = get_Proj_proj(node); + + switch ((pn_Alloc)pn) { + case pn_Alloc_M: { + ir_node *alloc_mem = get_Alloc_mem(alloc); + return be_transform_node(alloc_mem); + } + case pn_Alloc_res: { + ir_node *new_alloc = be_transform_node(alloc); + return new_alloc; + } + case pn_Alloc_X_regular: + case pn_Alloc_X_except: + panic("sparc backend: exception output of alloc not supported (at %+F)", + node); + } + panic("sparc backend: invalid Proj->Alloc"); +} + +static ir_node *gen_Free(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_type *type = get_Free_type(node); + ir_node *size = get_Free_count(node); + ir_node *mem = get_Free_mem(node); + ir_node *new_mem = be_transform_node(mem); + ir_node *stack_pred = get_stack_pointer_for(node); + ir_node *addsp; + if (get_Alloc_where(node) != stack_alloc) + panic("only stack-alloc supported in sparc backend (at %+F)", node); + /* lowerer should have transformed all allocas to byte size */ + if (type != get_unknown_type() && get_type_size_bytes(type) != 1) + panic("Found non-byte alloc in sparc backend (at %+F)", node); + + if (is_Const(size)) { + ir_tarval *tv = get_Const_tarval(size); + long sizel = get_tarval_long(tv); + addsp = be_new_IncSP(sp_reg, new_block, stack_pred, -sizel, 0); + set_irn_dbg_info(addsp, dbgi); + } else { + ir_node *new_size = be_transform_node(size); + addsp = new_bd_sparc_AddSP(dbgi, new_block, stack_pred, new_size); + arch_set_irn_register(addsp, sp_reg); + } + + /* if we are the last IncSP producer in a block then we have to keep + * the stack value. + * Note: This here keeps all producers which is more than necessary */ + keep_alive(addsp); + + pmap_insert(node_to_stack, node, addsp); + /* the "result" is the unmodified sp value */ + return new_mem; +} + static const arch_register_req_t float1_req = { arch_register_req_type_normal, &sparc_reg_classes[CLASS_sparc_fp], @@ -1862,7 +2148,7 @@ static ir_node *gen_Phi(ir_node *node) phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1); copy_node_attr(irg, node, phi); be_duplicate_deps(node, phi); - arch_set_out_register_req(phi, 0, req); + arch_set_irn_register_req_out(phi, 0, req); be_enqueue_preds(node); return phi; } @@ -1889,7 +2175,10 @@ static ir_node *gen_Proj_Load(ir_node *node) break; case iro_sparc_Ldf: if (pn == pn_Load_res) { - return new_rd_Proj(dbgi, new_load, mode_fp, pn_sparc_Ldf_res); + const sparc_load_store_attr_t *attr + = get_sparc_load_store_attr_const(new_load); + ir_mode *mode = attr->load_store_mode; + return new_rd_Proj(dbgi, new_load, mode, pn_sparc_Ldf_res); } else if (pn == pn_Load_M) { return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M); } @@ -1941,16 +2230,23 @@ static ir_node *gen_Proj_Div(ir_node *node) ir_node *pred = get_Proj_pred(node); ir_node *new_pred = be_transform_node(pred); long pn = get_Proj_proj(node); + ir_mode *res_mode; - assert(is_sparc_SDiv(new_pred) || is_sparc_UDiv(new_pred) - || is_sparc_fdiv(new_pred)); + if (is_sparc_SDiv(new_pred) || is_sparc_UDiv(new_pred)) { + res_mode = mode_gp; + } else if (is_sparc_fdiv(new_pred)) { + res_mode = get_Div_resmode(pred); + } else { + panic("sparc backend: Div transformed to something unexpected: %+F", + new_pred); + } assert((int)pn_sparc_SDiv_res == (int)pn_sparc_UDiv_res); assert((int)pn_sparc_SDiv_M == (int)pn_sparc_UDiv_M); assert((int)pn_sparc_SDiv_res == (int)pn_sparc_fdiv_res); assert((int)pn_sparc_SDiv_M == (int)pn_sparc_fdiv_M); switch (pn) { case pn_Div_res: - return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_res); + return new_r_Proj(new_pred, res_mode, pn_sparc_SDiv_res); case pn_Div_M: return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_M); default: @@ -1959,10 +2255,16 @@ static ir_node *gen_Proj_Div(ir_node *node) panic("Unsupported Proj from Div"); } -static ir_node *get_frame_base(void) +static ir_node *get_frame_base(ir_graph *irg) { - const arch_register_t *reg = current_cconv->omit_fp ? sp_reg : fp_reg; - return be_prolog_get_reg_value(abihelper, reg); + if (frame_base == NULL) { + if (current_cconv->omit_fp) { + frame_base = get_initial_sp(irg); + } else { + frame_base = get_initial_fp(irg); + } + } + return frame_base; } static ir_node *gen_Proj_Start(ir_node *node) @@ -1977,24 +2279,27 @@ static ir_node *gen_Proj_Start(ir_node *node) case pn_Start_X_initial_exec: /* exchange ProjX with a jump */ return new_bd_sparc_Ba(NULL, new_block); - case pn_Start_M: - return be_prolog_get_memory(abihelper); + case pn_Start_M: { + ir_graph *irg = get_irn_irg(node); + return get_initial_mem(irg); + } case pn_Start_T_args: return new_r_Bad(get_irn_irg(block), mode_T); case pn_Start_P_frame_base: - return get_frame_base(); + return get_frame_base(get_irn_irg(block)); } panic("Unexpected start proj: %ld\n", pn); } static ir_node *gen_Proj_Proj_Start(ir_node *node) { - long pn = get_Proj_proj(node); - ir_node *block = get_nodes_block(node); - ir_node *new_block = be_transform_node(block); - ir_entity *entity = get_irg_entity(current_ir_graph); - ir_type *method_type = get_entity_type(entity); - ir_type *param_type = get_method_param_type(method_type, pn); + long pn = get_Proj_proj(node); + ir_node *block = get_nodes_block(node); + ir_graph *irg = get_irn_irg(node); + ir_node *new_block = be_transform_node(block); + ir_node *args = get_Proj_pred(node); + ir_node *start = get_Proj_pred(args); + ir_node *new_start = be_transform_node(start); const reg_or_stackslot_t *param; /* Proj->Proj->Start must be a method argument */ @@ -2004,18 +2309,32 @@ static ir_node *gen_Proj_Proj_Start(ir_node *node) if (param->reg0 != NULL) { /* argument transmitted in register */ - ir_mode *mode = get_type_mode(param_type); - const arch_register_t *reg = param->reg0; - ir_node *value = be_prolog_get_reg_value(abihelper, reg); + const arch_register_t *reg = param->reg0; + ir_mode *reg_mode = reg->reg_class->mode; + long new_pn = param->reg_offset + start_params_offset; + ir_node *value = new_r_Proj(new_start, reg_mode, new_pn); + bool is_float = false; + + { + ir_entity *entity = get_irg_entity(irg); + ir_type *method_type = get_entity_type(entity); + if (pn < (long)get_method_n_params(method_type)) { + ir_type *param_type = get_method_param_type(method_type, pn); + ir_mode *mode = get_type_mode(param_type); + is_float = mode_is_float(mode); + } + } - if (mode_is_float(mode)) { + if (is_float) { + const arch_register_t *reg1 = param->reg1; ir_node *value1 = NULL; - if (param->reg1 != NULL) { - value1 = be_prolog_get_reg_value(abihelper, param->reg1); + if (reg1 != NULL) { + ir_mode *reg1_mode = reg1->reg_class->mode; + value1 = new_r_Proj(new_start, reg1_mode, new_pn+1); } else if (param->entity != NULL) { - ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg); - ir_node *mem = be_prolog_get_memory(abihelper); + ir_node *fp = get_initial_fp(irg); + ir_node *mem = get_initial_mem(irg); ir_node *ld = new_bd_sparc_Ld_imm(NULL, new_block, fp, mem, mode_gp, param->entity, 0, true); @@ -2028,11 +2347,11 @@ static ir_node *gen_Proj_Proj_Start(ir_node *node) return value; } else { /* argument transmitted on stack */ - ir_node *mem = be_prolog_get_memory(abihelper); - ir_mode *mode = get_type_mode(param->type); - ir_node *base = get_frame_base(); - ir_node *load; - ir_node *value; + ir_node *mem = get_initial_mem(irg); + ir_mode *mode = get_type_mode(param->type); + ir_node *base = get_frame_base(irg); + ir_node *load; + ir_node *value; if (mode_is_float(mode)) { load = create_ldf(NULL, new_block, base, mem, mode, @@ -2066,23 +2385,6 @@ static ir_node *gen_Proj_Call(ir_node *node) panic("Unexpected Call proj %ld\n", pn); } -/** - * Finds number of output value of a mode_T node which is constrained to - * a single specific register. - */ -static int find_out_for_reg(ir_node *node, const arch_register_t *reg) -{ - int n_outs = arch_irn_get_n_outs(node); - int o; - - for (o = 0; o < n_outs; ++o) { - const arch_register_req_t *req = arch_get_out_register_req(node, o); - if (req == reg->single_req) - return o; - } - return -1; -} - static ir_node *gen_Proj_Proj_Call(ir_node *node) { long pn = get_Proj_proj(node); @@ -2091,21 +2393,17 @@ static ir_node *gen_Proj_Proj_Call(ir_node *node) ir_type *function_type = get_Call_type(call); calling_convention_t *cconv = sparc_decide_calling_convention(function_type, NULL); - const reg_or_stackslot_t *res = &cconv->results[pn]; - const arch_register_t *reg = res->reg0; - ir_mode *mode; - int regn; + const reg_or_stackslot_t *res = &cconv->results[pn]; + ir_mode *mode = get_irn_mode(node); + long new_pn = 1 + res->reg_offset; - assert(res->reg0 != NULL && res->reg1 == NULL); - regn = find_out_for_reg(new_call, reg); - if (regn < 0) { - panic("Internal error in calling convention for return %+F", node); + assert(res->req0 != NULL && res->req1 == NULL); + if (mode_needs_gp_reg(mode)) { + mode = mode_gp; } - mode = res->reg0->reg_class->mode; - sparc_free_calling_convention(cconv); - return new_r_Proj(new_call, mode, regn); + return new_r_Proj(new_call, mode, new_pn); } /** @@ -2116,6 +2414,8 @@ static ir_node *gen_Proj(ir_node *node) ir_node *pred = get_Proj_pred(node); switch (get_irn_opcode(pred)) { + case iro_Alloc: + return gen_Proj_Alloc(node); case iro_Store: return gen_Proj_Store(node); case iro_Load: @@ -2124,6 +2424,7 @@ static ir_node *gen_Proj(ir_node *node) return gen_Proj_Call(node); case iro_Cmp: return gen_Proj_Cmp(node); + case iro_Switch: case iro_Cond: return be_duplicate_node(node); case iro_Div: @@ -2169,6 +2470,7 @@ static void sparc_register_transformers(void) be_start_transform_setup(); be_set_transform_function(op_Add, gen_Add); + be_set_transform_function(op_Alloc, gen_Alloc); be_set_transform_function(op_And, gen_And); be_set_transform_function(op_Call, gen_Call); be_set_transform_function(op_Cmp, gen_Cmp); @@ -2177,6 +2479,7 @@ static void sparc_register_transformers(void) be_set_transform_function(op_Conv, gen_Conv); be_set_transform_function(op_Div, gen_Div); be_set_transform_function(op_Eor, gen_Eor); + be_set_transform_function(op_Free, gen_Free); be_set_transform_function(op_Jmp, gen_Jmp); be_set_transform_function(op_Load, gen_Load); be_set_transform_function(op_Minus, gen_Minus); @@ -2194,6 +2497,7 @@ static void sparc_register_transformers(void) be_set_transform_function(op_Start, gen_Start); be_set_transform_function(op_Store, gen_Store); be_set_transform_function(op_Sub, gen_Sub); + be_set_transform_function(op_Switch, gen_Switch); be_set_transform_function(op_SymConst, gen_SymConst); be_set_transform_function(op_Unknown, gen_Unknown); @@ -2216,21 +2520,34 @@ void sparc_transform_graph(ir_graph *irg) node_to_stack = pmap_create(); - mode_gp = mode_Iu; - mode_fp = mode_F; + mode_gp = sparc_reg_classes[CLASS_sparc_gp].mode; + mode_fp = sparc_reg_classes[CLASS_sparc_fp].mode; mode_fp2 = mode_D; - mode_flags = mode_Bu; //mode_fp4 = ? + mode_flags = sparc_reg_classes[CLASS_sparc_flags_class].mode; + assert(sparc_reg_classes[CLASS_sparc_fpflags_class].mode == mode_flags); + + start_mem = NULL; + start_g0 = NULL; + start_g7 = NULL; + start_sp = NULL; + start_fp = NULL; + frame_base = NULL; - abihelper = be_abihelper_prepare(irg); - be_collect_stacknodes(abihelper); + stackorder = be_collect_stacknodes(irg); current_cconv = sparc_decide_calling_convention(get_entity_type(entity), irg); - create_stacklayout(irg); + if (sparc_variadic_fixups(irg, current_cconv)) { + sparc_free_calling_convention(current_cconv); + current_cconv + = sparc_decide_calling_convention(get_entity_type(entity), irg); + } + sparc_create_stacklayout(irg, current_cconv); + be_add_parameter_entity_stores(irg); be_transform_graph(irg, NULL); - be_abihelper_finish(abihelper); + be_free_stackorder(stackorder); sparc_free_calling_convention(current_cconv); frame_type = get_irg_frame_type(irg); @@ -2244,6 +2561,8 @@ void sparc_transform_graph(ir_graph *irg) /* do code placement, to optimize the position of constants */ place_code(irg); + /* backend expects outedges to be always on */ + edges_assure(irg); } void sparc_init_transform(void)