* @brief This file implements the common parts of IR transformation from
* firm into ia32-Firm.
* @author Matthias Braun, Sebastian Buchwald
- * @version $Id: ia32_common_transform.c 21012 2008-08-06 13:35:17Z beck $
*/
#include "config.h"
#include "bitset.h"
#include "heights.h"
-#include "../betranshlp.h"
-#include "../beirg.h"
-#include "../beabi.h"
+#include "betranshlp.h"
+#include "beirg.h"
+#include "beabi.h"
#include "ia32_architecture.h"
#include "ia32_common_transform.h"
#include "gen_ia32_new_nodes.h"
#include "gen_ia32_regalloc_if.h"
-ir_heights_t *heights = NULL;
+ir_heights_t *ia32_heights = NULL;
static int check_immediate_constraint(long val, char immediate_constraint_type)
{
}
}
-/**
- * Get a primitive type for a mode with alignment 16.
- */
-static ir_type *ia32_get_prim_type(pmap *types, ir_mode *mode)
+ir_type *ia32_get_prim_type(const ir_mode *mode)
{
- ir_type *res = (ir_type*)pmap_get(types, mode);
- if (res != NULL)
- return res;
-
- res = new_type_primitive(mode);
- if (get_mode_size_bits(mode) >= 80) {
- set_type_alignment_bytes(res, 16);
+ if (mode == ia32_mode_E) {
+ return ia32_type_E;
+ } else {
+ return get_type_for_mode(mode);
}
- pmap_insert(types, mode, res);
- return res;
}
-ir_entity *create_float_const_entity(ir_node *cnst)
+ir_entity *ia32_create_float_const_entity(ia32_isa_t *isa, ir_tarval *tv,
+ ident *name)
{
- ir_graph *irg = get_irn_irg(cnst);
- const arch_env_t *arch_env = be_get_irg_arch_env(irg);
- ia32_isa_t *isa = (ia32_isa_t*) arch_env;
- ir_tarval *tv = get_Const_tarval(cnst);
- ir_entity *res = (ir_entity*)pmap_get(isa->tv_ent, tv);
+ ir_entity *res = (ir_entity*)pmap_get(isa->tv_ent, tv);
ir_initializer_t *initializer;
ir_mode *mode;
ir_type *tp;
}
}
- tp = ia32_get_prim_type(isa->types, mode);
- res = new_entity(get_glob_type(), id_unique("C%u"), tp);
+ if (name == NULL)
+ name = id_unique("C%u");
+
+ tp = ia32_get_prim_type(mode);
+ res = new_entity(get_glob_type(), name, tp);
set_entity_ld_ident(res, get_entity_ident(res));
set_entity_visibility(res, ir_visibility_private);
add_entity_linkage(res, IR_LINKAGE_CONSTANT);
ir_graph *irg = current_ir_graph;
ir_node *start_block = get_irg_start_block(irg);
ir_node *immediate = new_bd_ia32_Immediate(NULL, start_block, symconst,
- symconst_sign, no_pic_adjust, val);
+ symconst_sign, ia32_no_pic_adjust, val);
arch_set_irn_register(immediate, &ia32_registers[REG_GP_NOREG]);
return immediate;
int ia32_mode_needs_gp_reg(ir_mode *mode)
{
- if (mode == mode_fpcw)
+ if (mode == ia32_mode_fpcw)
return 0;
if (get_mode_size_bits(mode) > 32)
return 0;
}
static void parse_asm_constraints(constraint_t *constraint, const char *c,
- int is_output)
+ bool is_output)
{
char immediate_type = '\0';
unsigned limited = 0;
case 'e': /* not available in 32 bit mode */
panic("unsupported asm constraint '%c' found in (%+F)",
*c, current_ir_graph);
- break;
default:
panic("unknown asm constraint '%c' found in (%+F)", *c,
current_ir_graph);
- break;
}
++c;
}
#endif
}
-ir_node *gen_ASM(ir_node *node)
+ir_node *ia32_gen_ASM(ir_node *node)
{
ir_node *block = get_nodes_block(node);
ir_node *new_block = get_new_node(block);
dbg_info *dbgi = get_irn_dbg_info(node);
- int i, arity;
- int value_arity;
- int out_idx;
+ int arity;
+ size_t value_arity;
+ size_t out_idx;
ir_node **in;
ir_node *new_node;
- int out_arity;
- int n_out_constraints;
- int n_clobbers;
+ size_t out_arity;
+ size_t n_out_constraints;
+ size_t n_clobbers;
const arch_register_req_t **out_reg_reqs;
const arch_register_req_t **in_reg_reqs;
ia32_asm_reg_t *register_map;
const ir_asm_constraint *in_constraints;
const ir_asm_constraint *out_constraints;
ident **clobbers;
- int clobbers_flags = 0;
unsigned clobber_bits[N_IA32_CLASSES];
- int out_size;
+ size_t out_size;
backend_info_t *info;
+ int i;
+ size_t c;
+ size_t o;
memset(&clobber_bits, 0, sizeof(clobber_bits));
- /* workaround for lots of buggy code out there as most people think volatile
- * asm is enough for everything and forget the flags (linux kernel, etc.)
- */
- if (get_irn_pinned(node) == op_pin_state_pinned) {
- clobbers_flags = 1;
- }
-
arity = get_irn_arity(node);
in = ALLOCANZ(ir_node*, arity);
clobbers = get_ASM_clobbers(node);
n_clobbers = 0;
- for (i = 0; i < get_ASM_n_clobbers(node); ++i) {
+ for (c = 0; c < get_ASM_n_clobbers(node); ++c) {
const arch_register_req_t *req;
- const char *c = get_id_str(clobbers[i]);
+ const char *clobber = get_id_str(clobbers[c]);
- if (strcmp(c, "memory") == 0)
+ if (strcmp(clobber, "memory") == 0)
continue;
- if (strcmp(c, "cc") == 0) {
- clobbers_flags = 1;
+ if (strcmp(clobber, "cc") == 0) {
continue;
}
- req = parse_clobber(c);
+ req = ia32_parse_clobber(clobber);
clobber_bits[req->cls->index] |= *req->limited;
n_clobbers++;
memset(register_map, 0, reg_map_size * sizeof(register_map[0]));
/* construct output constraints */
- out_size = out_arity + 1;
+ out_size = out_arity + 1;
out_reg_reqs = OALLOCN(obst, const arch_register_req_t*, out_size);
for (out_idx = 0; out_idx < n_out_constraints; ++out_idx) {
const ir_asm_constraint *constraint = &out_constraints[out_idx];
const char *c = get_id_str(constraint->constraint);
- unsigned pos = constraint->pos;
+ unsigned pos = constraint->pos;
constraint_t parsed_constraint;
const arch_register_req_t *req;
- parse_asm_constraints(&parsed_constraint, c, 1);
- req = make_register_req(&parsed_constraint, n_out_constraints,
- out_reg_reqs, out_idx);
+ parse_asm_constraints(&parsed_constraint, c, true);
+ req = ia32_make_register_req(&parsed_constraint, n_out_constraints,
+ out_reg_reqs, out_idx);
out_reg_reqs[out_idx] = req;
+ /* multiple constraints for same pos. This can happen for example when
+ * a =A constraint gets lowered to two constraints: =a and =d for the
+ * same pos */
+ if (register_map[pos].valid)
+ continue;
+
register_map[pos].use_input = 0;
register_map[pos].valid = 1;
register_map[pos].memory = 0;
constraint_t parsed_constraint;
const arch_register_req_t *req;
- parse_asm_constraints(&parsed_constraint, c, 0);
+ parse_asm_constraints(&parsed_constraint, c, false);
if (parsed_constraint.cls != NULL) {
r_clobber_bits = clobber_bits[parsed_constraint.cls->index];
if (r_clobber_bits != 0) {
}
}
- req = make_register_req(&parsed_constraint, n_out_constraints,
+ req = ia32_make_register_req(&parsed_constraint, n_out_constraints,
out_reg_reqs, i);
in_reg_reqs[i] = req;
if (parsed_constraint.immediate_type != '\0') {
char imm_type = parsed_constraint.immediate_type;
- input = try_create_Immediate(pred, imm_type);
+ input = ia32_try_create_Immediate(pred, imm_type);
}
if (input == NULL) {
- ir_node *pred = get_irn_n(node, i);
input = get_new_node(pred);
if (parsed_constraint.cls == NULL
}
/* parse clobbers */
- for (i = 0; i < get_ASM_n_clobbers(node); ++i) {
- const char *c = get_id_str(clobbers[i]);
+ for (c = 0; c < get_ASM_n_clobbers(node); ++c) {
+ const char *clobber = get_id_str(clobbers[c]);
const arch_register_req_t *req;
- if (strcmp(c, "memory") == 0 || strcmp(c, "cc") == 0)
+ if (strcmp(clobber, "memory") == 0 || strcmp(clobber, "cc") == 0)
continue;
- req = parse_clobber(c);
+ req = ia32_parse_clobber(clobber);
out_reg_reqs[out_idx] = req;
++out_idx;
}
/* count inputs which are real values (and not memory) */
value_arity = 0;
for (i = 0; i < arity; ++i) {
- ir_node *in = get_irn_n(node, i);
- if (get_irn_mode(in) == mode_M)
+ ir_node *node_in = get_irn_n(node, i);
+ if (get_irn_mode(node_in) == mode_M)
continue;
++value_arity;
}
if (out_arity <= value_arity) {
int orig_arity = arity;
int in_size = arity;
- int o;
- bitset_t *used_ins = bitset_alloca(arity);
+ bitset_t *used_ins = bitset_alloca(arity);
+ size_t o;
for (o = 0; o < out_arity; ++o) {
- int i;
const arch_register_req_t *outreq = out_reg_reqs[o];
if (outreq->cls == NULL) {
assert(outreq->type & arch_register_req_type_limited);
in_reg_reqs[arity] = outreq;
in[arity] = new_bd_ia32_ProduceVal(NULL, block);
- be_dep_on_frame(in[arity]);
++arity;
}
} else {
- int i;
- bitset_t *used_outs = bitset_alloca(out_arity);
- int orig_out_arity = out_arity;
+ bitset_t *used_outs = bitset_alloca(out_arity);
+ size_t orig_out_arity = out_arity;
for (i = 0; i < arity; ++i) {
- int o;
const arch_register_req_t *inreq = in_reg_reqs[i];
+ size_t o;
if (inreq->cls == NULL) {
continue;
new_node = new_bd_ia32_Asm(dbgi, new_block, arity, in, out_arity,
get_ASM_text(node), register_map);
- if (arity == 0)
- be_dep_on_frame(new_node);
-
info = be_get_info(new_node);
- for (i = 0; i < out_arity; ++i) {
- info->out_infos[i].req = out_reg_reqs[i];
+ for (o = 0; o < out_arity; ++o) {
+ info->out_infos[o].req = out_reg_reqs[o];
}
- arch_set_in_register_reqs(new_node, in_reg_reqs);
+ arch_set_irn_register_reqs_in(new_node, in_reg_reqs);
SET_IA32_ORIG_NODE(new_node, node);
return new_node;
}
-ir_node *gen_CopyB(ir_node *node)
+ir_node *ia32_gen_CopyB(ir_node *node)
{
ir_node *block = get_new_node(get_nodes_block(node));
ir_node *src = get_CopyB_src(node);
ir_node *res = NULL;
dbg_info *dbgi = get_irn_dbg_info(node);
int size = get_type_size_bytes(get_CopyB_type(node));
+ int throws_exception = ir_throws_exception(node);
int rem;
/* If we have to copy more than 32 bytes, we use REP MOVSx and */
size >>= 2;
res = new_bd_ia32_Const(dbgi, block, NULL, 0, 0, size);
- be_dep_on_frame(res);
res = new_bd_ia32_CopyB(dbgi, block, new_dst, new_src, res, new_mem, rem);
} else {
}
res = new_bd_ia32_CopyB_i(dbgi, block, new_dst, new_src, new_mem, size);
}
+ ir_set_throws_exception(res, throws_exception);
SET_IA32_ORIG_NODE(res, node);
return res;
}
-ir_node *gen_Proj_tls(ir_node *node)
+ir_node *ia32_gen_Proj_tls(ir_node *node)
{
ir_node *block = get_new_node(get_nodes_block(node));
- ir_node *res = NULL;
-
- res = new_bd_ia32_LdTls(NULL, block, mode_Iu);
-
+ ir_node *res = new_bd_ia32_LdTls(NULL, block);
return res;
}
-ir_node *gen_Unknown(ir_node *node)
+ir_node *ia32_gen_Unknown(ir_node *node)
{
ir_mode *mode = get_irn_mode(node);
ir_graph *irg = current_ir_graph;
panic("unsupported Unknown-Mode");
}
- be_dep_on_frame(res);
return res;
}
-const arch_register_req_t *make_register_req(const constraint_t *constraint,
+const arch_register_req_t *ia32_make_register_req(const constraint_t *constraint,
int n_outs, const arch_register_req_t **out_reqs, int pos)
{
struct obstack *obst = get_irg_obstack(current_ir_graph);
return req;
}
-const arch_register_req_t *parse_clobber(const char *clobber)
+const arch_register_req_t *ia32_parse_clobber(const char *clobber)
{
struct obstack *obst = get_irg_obstack(current_ir_graph);
const arch_register_t *reg = ia32_get_clobber_register(clobber);
}
-int prevents_AM(ir_node *const block, ir_node *const am_candidate,
+int ia32_prevents_AM(ir_node *const block, ir_node *const am_candidate,
ir_node *const other)
{
if (get_nodes_block(other) != block)
if (is_Proj(pred) && get_Proj_pred(pred) == am_candidate)
continue;
- if (!heights_reachable_in_block(heights, pred, am_candidate))
+ if (!heights_reachable_in_block(ia32_heights, pred, am_candidate))
continue;
return 1;
if (is_Proj(other) && get_Proj_pred(other) == am_candidate)
return 0;
- if (!heights_reachable_in_block(heights, other, am_candidate))
+ if (!heights_reachable_in_block(ia32_heights, other, am_candidate))
return 0;
return 1;
}
}
-ir_node *try_create_Immediate(ir_node *node, char immediate_constraint_type)
+ir_node *ia32_try_create_Immediate(ir_node *node, char immediate_constraint_type)
{
- long val = 0;
- ir_entity *symconst_ent = NULL;
- ir_mode *mode;
- ir_node *cnst = NULL;
- ir_node *symconst = NULL;
- ir_node *new_node;
+ long val = 0;
+ ir_entity *symconst_ent = NULL;
+ ir_mode *mode;
+ ir_node *cnst = NULL;
+ ir_node *symconst = NULL;
+ ir_node *new_node;
mode = get_irn_mode(node);
if (!mode_is_int(mode) && !mode_is_reference(mode)) {
if (is_Const(node)) {
cnst = node;
symconst = NULL;
- } else if (is_Global(node)) {
+ } else if (is_SymConst_addr_ent(node)
+ && get_entity_owner(get_SymConst_entity(node)) != get_tls_type()) {
cnst = NULL;
symconst = node;
} else if (is_Add(node)) {
ir_node *left = get_Add_left(node);
ir_node *right = get_Add_right(node);
- if (is_Const(left) && is_Global(right)) {
+ if (is_Const(left) && is_SymConst_addr_ent(right)) {
cnst = left;
symconst = right;
- } else if (is_Global(left) && is_Const(right)) {
+ } else if (is_SymConst_addr_ent(left) && is_Const(right)) {
cnst = right;
symconst = left;
}
return NULL;
}
- symconst_ent = get_Global_entity(symconst);
+ symconst_ent = get_SymConst_entity(symconst);
}
if (cnst == NULL && symconst == NULL)
return NULL;
projects / libfirm / blobdiff