* @file
* @brief code selection (transform FIRM into SPARC FIRM)
* @author Hannes Rapp, Matthias Braun
- * @version $Id$
*/
#include "config.h"
#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"
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;
* 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;
}
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);
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);
}
/**
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);
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);
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);
}
}
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);
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)
+{
+ 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 {
ir_node *ptr;
ir_node *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 {
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));
}
}
-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));
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;
}
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);
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)
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);
}
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)
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)
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)
}
}
-static ir_mode *get_cmp_mode(ir_node *b_value)
+static ir_node *gen_Switch(ir_node *node)
{
- ir_node *op;
+ 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 (!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)
-{
- ir_node *hi = new_bd_sparc_SetHi(dbgi, block, entity, offset);
- ir_node *low = new_bd_sparc_Or_imm(dbgi, block, hi, entity, offset);
-
- 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);
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);
}
}
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);
}
}
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 */
}
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) {
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);
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 ir_type *compute_arg_type(ir_graph *irg)
-{
- ir_entity *entity = get_irg_entity(irg);
- ir_type *mtp = get_entity_type(entity);
- size_t n_params = get_method_n_params(mtp);
- ir_entity **param_map = ALLOCANZ(ir_entity*, n_params);
-
- ir_type *frame_type = get_irg_frame_type(irg);
- size_t n_frame_members = get_compound_n_members(frame_type);
- size_t f;
- size_t i;
-
- ir_type *res = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
-
- /* search for existing value_param entities */
- for (f = n_frame_members; f > 0; ) {
- ir_entity *member = get_compound_member(frame_type, --f);
- size_t num;
- const reg_or_stackslot_t *param;
-
- if (!is_parameter_entity(member))
- continue;
- num = get_entity_parameter_number(member);
- assert(num < n_params);
- if (param_map[num] != NULL)
- panic("multiple entities for parameter %u in %+F found", f, irg);
-
- param = ¤t_cconv->parameters[num];
- if (param->reg0 != NULL)
- continue;
-
- param_map[num] = member;
- /* move to new arg_type */
- set_entity_owner(member, res);
- }
-
- for (i = 0; i < n_params; ++i) {
- reg_or_stackslot_t *param = ¤t_cconv->parameters[i];
- ir_entity *entity;
-
- if (param->reg0 != NULL)
- continue;
- entity = param_map[i];
- if (entity == NULL)
- entity = new_parameter_entity(res, i, param->type);
- param->entity = entity;
- set_entity_offset(entity, param->offset);
- }
-
- return res;
-}
-
-static void create_stacklayout(ir_graph *irg)
-{
- be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
-
- /* calling conventions must be decided by now */
- assert(current_cconv != NULL);
-
- memset(layout, 0, sizeof(*layout));
-
- layout->frame_type = get_irg_frame_type(irg);
- layout->between_type = sparc_get_between_type();
- layout->arg_type = compute_arg_type(irg);
- 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
*/
assert(obstack_object_size(obst) == 0);
/* calculate number of outputs */
- n_outs = 3; /* memory, zero, sp */
+ n_outs = 4; /* memory, g0, g7, sp */
if (!current_cconv->omit_fp)
++n_outs; /* framepointer */
/* function parameters */
/* first output is memory */
start_mem_offset = o;
- arch_set_out_register_req(start, o, arch_no_register_req);
+ 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_out_register_req(start, o, req);
- arch_irn_set_register(start, o, &sparc_registers[REG_G0]);
+ 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);
- arch_set_out_register_req(start, o, req);
- arch_irn_set_register(start, o, sp_reg);
+ 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_out_register_req(start, o, req);
- arch_irn_set_register(start, o, fp_reg);
+ arch_set_irn_register_req_out(start, o, req);
+ arch_set_irn_register_out(start, o, fp_reg);
++o;
}
const arch_register_t *reg0 = param->reg0;
const arch_register_t *reg1 = param->reg1;
if (reg0 != NULL) {
- arch_set_out_register_req(start, o, reg0->single_req);
- arch_irn_set_register(start, o, reg0);
+ arch_set_irn_register_req_out(start, o, reg0->single_req);
+ arch_set_irn_register_out(start, o, reg0);
++o;
}
if (reg1 != NULL) {
- arch_set_out_register_req(start, o, reg1->single_req);
- arch_irn_set_register(start, o, reg1);
+ arch_set_irn_register_req_out(start, o, reg1->single_req);
+ arch_set_irn_register_out(start, o, reg1);
++o;
}
}
size_t c;
for (c = 0; c < n_callee_saves; ++c) {
const arch_register_t *reg = omit_fp_callee_saves[c];
- arch_set_out_register_req(start, o, reg->single_req);
- arch_irn_set_register(start, o, reg);
+ arch_set_irn_register_req_out(start, o, reg->single_req);
+ arch_set_irn_register_out(start, o, reg);
++o;
}
}
assert(p == n_ins);
bereturn = new_bd_sparc_Return_reg(dbgi, new_block, n_ins, in);
- arch_set_in_register_reqs(bereturn, reqs);
+ arch_set_irn_register_reqs_in(bereturn, reqs);
return bereturn;
}
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;
= 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;
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);
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;
/* 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);
+ 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_out_register_req(res, o++, req);
+ arch_set_irn_register_req_out(res, o++, req);
}
assert(result_info->req1 == NULL);
}
if (!rbitset_is_set(cconv->caller_saves, i))
continue;
reg = &sparc_registers[i];
- arch_set_out_register_req(res, o++, reg->single_req);
+ arch_set_irn_register_req_out(res, o++, reg->single_req);
}
assert(o == out_arity);
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],
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;
}
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);
}
static ir_node *gen_Proj_Proj_Start(ir_node *node)
{
- 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_entity *entity = get_irg_entity(irg);
- ir_type *method_type = get_entity_type(entity);
- ir_type *param_type = get_method_param_type(method_type, pn);
- ir_node *args = get_Proj_pred(node);
- ir_node *start = get_Proj_pred(args);
- ir_node *new_start = be_transform_node(start);
+ 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 */
if (param->reg0 != NULL) {
/* argument transmitted in register */
- ir_mode *mode = get_type_mode(param_type);
const arch_register_t *reg = param->reg0;
ir_mode *reg_mode = reg->reg_class->mode;
- long pn = param->reg_offset + start_params_offset;
- ir_node *value = new_r_Proj(new_start, reg_mode, pn);
+ 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 (reg1 != NULL) {
ir_mode *reg1_mode = reg1->reg_class->mode;
- value1 = new_r_Proj(new_start, reg1_mode, pn+1);
+ value1 = new_r_Proj(new_start, reg1_mode, new_pn+1);
} else if (param->entity != NULL) {
- ir_node *fp = get_initial_fp(irg);
- ir_node *mem = get_initial_mem(irg);
+ 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);
return value;
} else {
/* argument transmitted on stack */
- 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;
+ 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,
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];
- ir_mode *mode;
+ 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->req0 != NULL && res->req1 == NULL);
- mode = res->req0->cls->mode;
+ if (mode_needs_gp_reg(mode)) {
+ mode = mode_gp;
+ }
sparc_free_calling_convention(cconv);
return new_r_Proj(new_call, mode, new_pn);
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:
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:
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);
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);
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);
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;
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);
/* 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)
projects / libfirm / blobdiff