* @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 {
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)
return proj;
}
-static ir_node *gen_Const(ir_node *node)
+static ir_node *create_int_const(ir_node *block, int32_t value)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_mode *mode = get_irn_mode(node);
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_tarval *tv = get_Const_tarval(node);
- long value;
-
- if (mode_is_float(mode)) {
- return gen_float_const(dbgi, block, tv);
- }
-
- value = get_tarval_long(tv);
if (value == 0) {
- return get_g0(get_irn_irg(node));
+ ir_graph *irg = get_irn_irg(block);
+ return get_g0(irg);
} else if (sparc_is_value_imm_encodeable(value)) {
- ir_graph *irg = get_irn_irg(node);
- return new_bd_sparc_Or_imm(dbgi, block, get_g0(irg), NULL, value);
+ ir_graph *irg = get_irn_irg(block);
+ return new_bd_sparc_Or_imm(NULL, block, get_g0(irg), NULL, value);
} else {
- ir_node *hi = new_bd_sparc_SetHi(dbgi, block, NULL, value);
+ ir_node *hi = new_bd_sparc_SetHi(NULL, block, NULL, value);
if ((value & 0x3ff) != 0) {
- return new_bd_sparc_Or_imm(dbgi, block, hi, NULL, value & 0x3ff);
+ return new_bd_sparc_Or_imm(NULL, block, hi, NULL, value & 0x3ff);
} else {
return hi;
}
}
}
-static ir_mode *get_cmp_mode(ir_node *b_value)
+static ir_node *gen_Const(ir_node *node)
{
- ir_node *op;
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_mode *mode = get_irn_mode(node);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_tarval *tv = get_Const_tarval(node);
+ int32_t val;
- if (!is_Cmp(b_value))
- panic("can't determine cond signednes (no cmp)");
- op = get_Cmp_left(b_value);
- return get_irn_mode(op);
+ if (mode_is_float(mode)) {
+ return gen_float_const(dbgi, block, tv);
+ }
+ val = (int32_t)get_tarval_long(tv);
+ assert((long)val == get_tarval_long(tv));
+ return create_int_const(block, val);
}
-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);
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);
- }
-
- block = be_transform_node(get_nodes_block(node));
- dbgi = get_irn_dbg_info(node);
-
- /* regular if/else jumps */
- if (is_Cmp(selector)) {
- ir_mode *cmp_mode;
-
- cmp_mode = get_cmp_mode(selector);
- 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 {
- return new_bd_sparc_Bicc(dbgi, block, flag_node, relation, is_unsigned);
- }
+ /* 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);
+ if (mode_is_float(cmp_mode)) {
+ return new_bd_sparc_fbfcc(dbgi, block, flag_node, relation);
} else {
- /* in this case, the selector must already deliver a mode_b value.
- * this happens, for example, when the Cond is connected to a Conv
- * which converts its argument to mode_b. */
- ir_node *new_op;
- ir_graph *irg;
- assert(mode == mode_b);
-
- block = be_transform_node(get_nodes_block(node));
- irg = get_irn_irg(block);
- dbgi = get_irn_dbg_info(node);
- new_op = be_transform_node(selector);
- /* follow the SPARC architecture manual and use orcc for tst */
- flag_node = new_bd_sparc_OrCCZero_reg(dbgi, block, new_op, get_g0(irg));
- return new_bd_sparc_Bicc(dbgi, block, flag_node, ir_relation_less_greater, true);
+ 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;
- }
-
- if (dst_mode == mode_b) {
- /* mode_b lowering already took care that we only have 0/1 values */
- 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);
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 */
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,
}
static void bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
- ir_node *node, ir_mode *float_mode,
+ ir_node *value, ir_mode *float_mode,
ir_node **result)
{
- ir_graph *irg = current_ir_graph;
- ir_node *stack = get_irg_frame(irg);
- ir_node *nomem = get_irg_no_mem(irg);
- ir_node *stf = create_stf(dbgi, block, node, stack, nomem, float_mode,
- NULL, 0, true);
- int bits = get_mode_size_bits(float_mode);
- ir_node *ld;
- set_irn_pinned(stf, op_pin_state_floats);
-
- ld = new_bd_sparc_Ld_imm(dbgi, block, stack, stf, mode_gp, NULL, 0, true);
- set_irn_pinned(ld, op_pin_state_floats);
- result[0] = new_r_Proj(ld, mode_gp, pn_sparc_Ld_res);
-
- if (bits == 64) {
- ir_node *ld2 = new_bd_sparc_Ld_imm(dbgi, block, stack, stf, mode_gp,
- NULL, 4, true);
+ int bits = get_mode_size_bits(float_mode);
+ if (is_Const(value)) {
+ ir_tarval *tv = get_Const_tarval(value);
+ int32_t 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);
+ result[0] = create_int_const(block, val);
+ if (bits == 64) {
+ int32_t val = get_tarval_sub_bits(tv, 4) |
+ (get_tarval_sub_bits(tv, 5) << 8) |
+ (get_tarval_sub_bits(tv, 6) << 16) |
+ (get_tarval_sub_bits(tv, 7) << 24);
+ result[1] = create_int_const(block, val);
+ } else {
+ assert(bits == 32);
+ result[1] = NULL;
+ }
+ } else {
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = get_irg_no_mem(irg);
+ ir_node *new_value = be_transform_node(value);
+ ir_node *stf = create_stf(dbgi, block, new_value, stack, nomem,
+ float_mode, NULL, 0, true);
+ ir_node *ld;
+ set_irn_pinned(stf, op_pin_state_floats);
+
+ ld = new_bd_sparc_Ld_imm(dbgi, block, stack, stf, mode_gp, NULL, 0, true);
set_irn_pinned(ld, op_pin_state_floats);
- result[1] = new_r_Proj(ld2, mode_gp, pn_sparc_Ld_res);
+ result[0] = new_r_Proj(ld, mode_gp, pn_sparc_Ld_res);
- 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;
+ if (bits == 64) {
+ ir_node *ld2 = new_bd_sparc_Ld_imm(dbgi, block, stack, stf, mode_gp,
+ NULL, 4, true);
+ set_irn_pinned(ld, op_pin_state_floats);
+ result[1] = new_r_Proj(ld2, mode_gp, pn_sparc_Ld_res);
+
+ 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;
+ }
}
}
ir_entity *entity = NULL;
ir_node *new_frame = get_stack_pointer_for(node);
bool aggregate_return
- = type->attr.ma.has_compound_ret_parameter;
+ = get_method_calling_convention(type) & cc_compound_ret;
ir_node *incsp;
int mem_pos;
ir_node *res;
/* parameters */
for (p = 0; p < n_params; ++p) {
ir_node *value = get_Call_param(node, p);
- ir_node *new_value = be_transform_node(value);
const reg_or_stackslot_t *param = &cconv->parameters[p];
ir_type *param_type = get_method_param_type(type, p);
ir_mode *mode = get_type_mode(param_type);
+ ir_node *partial_value;
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);
assert(size_bits <= 64);
- bitcast_float_to_int(dbgi, new_block, new_value, mode, new_values);
+ bitcast_float_to_int(dbgi, new_block, value, mode, new_values);
} else {
+ ir_node *new_value = be_transform_node(value);
new_values[0] = new_value;
new_values[1] = NULL;
}
/* we need a store if we're here */
if (new_values[1] != NULL) {
- new_value = new_values[1];
- mode = mode_gp;
+ partial_value = new_values[1];
+ mode = mode_gp;
+ } else {
+ partial_value = new_values[0];
}
/* we need to skip over our save area when constructing the call
offset = param->offset + SPARC_MIN_STACKSIZE;
if (mode_is_float(mode)) {
- str = create_stf(dbgi, new_block, new_value, incsp, new_mem,
+ str = create_stf(dbgi, new_block, partial_value, incsp, new_mem,
mode, NULL, offset, true);
} else {
- str = new_bd_sparc_St_imm(dbgi, new_block, new_value, incsp,
+ str = new_bd_sparc_St_imm(dbgi, new_block, partial_value, incsp,
new_mem, mode, NULL, offset, true);
}
set_irn_pinned(str, op_pin_state_floats);
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 (!is_unknown_type(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 (!is_unknown_type(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],
static const arch_register_req_t *get_float_req(ir_mode *mode)
{
- unsigned bits = get_mode_size_bits(mode);
-
assert(mode_is_float(mode));
- if (bits == 32) {
- return &float1_req;
- } else if (bits == 64) {
- return &float2_req;
- } else {
- assert(bits == 128);
- return &float4_req;
+ switch (get_mode_size_bits(mode)) {
+ case 32: return &float1_req;
+ case 64: return &float2_req;
+ case 128: return &float4_req;
+ default: panic("invalid float mode");
}
}
mode = mode_gp;
req = sparc_reg_classes[CLASS_sparc_gp].class_req;
} else if (mode_is_float(mode)) {
- mode = mode;
req = get_float_req(mode);
} else {
req = arch_no_register_req;
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;
/* 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