#include "irprog_t.h"
#include "iredges_t.h"
-#include "../besched.h"
+#include "../besched_t.h"
#include "../benode_t.h"
#include "ia32_emitter.h"
# define obstack_chunk_free free
#endif
+#define BLOCK_PREFIX(x) ".L" x
+
extern int obstack_printf(struct obstack *obst, char *fmt, ...);
#define SNPRINTF_BUF_LEN 128
+/* global arch_env for lc_printf functions */
static const arch_env_t *arch_env = NULL;
+/* indicates whether blocks are scheduled or not
+ (this variable is set automatically) */
+static int have_block_sched = 0;
+
/*************************************************************
* _ _ __ _ _
* (_) | | / _| | | | |
*/
static const char *get_ia32_reg_name(ir_node *irn, int pos, enum io_direction in_out) {
const arch_register_t *reg;
+ const char *name;
+ static char *buf = NULL;
+ int len;
if (in_out == IN_REG) {
reg = get_in_reg(irn, pos);
reg = get_out_reg(irn, pos);
}
- return arch_register_get_name(reg);
+ name = arch_register_get_name(reg);
+
+ if (buf) {
+ free(buf);
+ }
+
+ len = strlen(name) + 2;
+ buf = xcalloc(1, len);
+
+ snprintf(buf, len, "%%%s", name);
+
+ return buf;
}
/**
int nr = occ->width - 1;
if (!X)
- return lc_arg_append(app, occ, "(null)", 6);
+ return lc_appendable_snadd(app, "(null)", 6);
buf = get_ia32_reg_name(X, nr, occ->conversion == 'S' ? IN_REG : OUT_REG);
- return lc_arg_append(app, occ, buf, strlen(buf));
+ return lc_appendable_snadd(app, buf, strlen(buf));
}
/**
buf = get_ia32_am_offs(X);
}
- return buf ? lc_arg_append(app, occ, buf, strlen(buf)) : 0;
+ return buf ? lc_appendable_snadd(app, buf, strlen(buf)) : 0;
}
/**
return lc_appendable_chadd(app, get_mode_size_bits(mode) == 32 ? 's' : 'd');
}
else {
-
return lc_appendable_chadd(app, mode_is_signed(mode) ? 's' : 'z');
}
}
in = out ? (REGS_ARE_EQUAL(out, in2) ? in1 : in2) : in2;
out = out ? out : in1;
- snprintf(buf, SNPRINTF_BUF_LEN, "%s, %s", \
+ snprintf(buf, SNPRINTF_BUF_LEN, "%%%s, %%%s", \
arch_register_get_name(out), arch_register_get_name(in));
}
break;
break;
case ia32_AddrModeD:
if (get_ia32_cnst(n)) {
- lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %s", ia32_emit_am(n, env), get_ia32_cnst(n));
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s,%s%s",
+ ia32_emit_am(n, env),
+ get_ia32_sc(n) ? " OFFSET FLAT:" : " ", /* In case of a symconst we must add OFFSET to */
+ get_ia32_cnst(n)); /* tell the assembler to store it's address. */
}
else {
const arch_register_t *in1 = get_in_reg(n, 2);
break;
}
- lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %s", ia32_emit_am(n, env), reg_name);
+ lc_esnprintf(ia32_get_arg_env(), buf, SNPRINTF_BUF_LEN, "%s, %%%s", ia32_emit_am(n, env), reg_name);
}
break;
default:
if (mode) {
switch (get_mode_size_bits(mode)) {
case 8:
- obstack_printf(obst, "BYTE ");
+ obstack_printf(obst, "BYTE PTR ");
break;
case 16:
- obstack_printf(obst, "WORD ");
+ obstack_printf(obst, "WORD PTR ");
+ break;
+ case 32:
+ obstack_printf(obst, "DWORD PTR ");
break;
default:
break;
* positive conditions for unsigned compares
*/
static const struct cmp2conditon_t cmp2condition_u[] = {
- { NULL, pn_Cmp_False }, /* always false */
- { "e", pn_Cmp_Eq }, /* == */
- { "b", pn_Cmp_Lt }, /* < */
- { "be", pn_Cmp_Le }, /* <= */
- { "a", pn_Cmp_Gt }, /* > */
- { "ae", pn_Cmp_Ge }, /* >= */
- { "ne", pn_Cmp_Lg }, /* != */
- { "ordered", pn_Cmp_Leg }, /* Floating point: ordered */
- { "unordered", pn_Cmp_Uo }, /* FLoting point: unordered */
- { "unordered or ==", pn_Cmp_Ue }, /* Floating point: unordered or == */
- { "unordered or <", pn_Cmp_Ul }, /* Floating point: unordered or < */
- { "unordered or <=", pn_Cmp_Ule }, /* Floating point: unordered or <= */
- { "unordered or >", pn_Cmp_Ug }, /* Floating point: unordered or > */
- { "unordered or >=", pn_Cmp_Uge }, /* Floating point: unordered or >= */
- { "unordered or !=", pn_Cmp_Ne }, /* Floating point: unordered or != */
- { NULL, pn_Cmp_True }, /* always true */
+ { NULL, pn_Cmp_False }, /* always false */
+ { "e", pn_Cmp_Eq }, /* == */
+ { "b", pn_Cmp_Lt }, /* < */
+ { "be", pn_Cmp_Le }, /* <= */
+ { "a", pn_Cmp_Gt }, /* > */
+ { "ae", pn_Cmp_Ge }, /* >= */
+ { "ne", pn_Cmp_Lg }, /* != */
+ { "ordered", pn_Cmp_Leg }, /* Floating point: ordered */
+ { "unordered", pn_Cmp_Uo }, /* FLoting point: unordered */
+ { "unordered or ==", pn_Cmp_Ue }, /* Floating point: unordered or == */
+ { "unordered or <", pn_Cmp_Ul }, /* Floating point: unordered or < */
+ { "unordered or <=", pn_Cmp_Ule }, /* Floating point: unordered or <= */
+ { "unordered or >", pn_Cmp_Ug }, /* Floating point: unordered or > */
+ { "unordered or >=", pn_Cmp_Uge }, /* Floating point: unordered or >= */
+ { "unordered or !=", pn_Cmp_Ne }, /* Floating point: unordered or != */
+ { NULL, pn_Cmp_True }, /* always true */
};
/*
return unsigned_cmp ? cmp2condition_u[cmp_code & 7].name : cmp2condition_s[cmp_code & 7].name;
}
+/**
+ * Returns the target block for a control flow node.
+ */
+static ir_node *get_cfop_target_block(const ir_node *irn) {
+ return get_irn_link(irn);
+}
+
/**
* Returns the target label for a control flow node.
*/
static char *get_cfop_target(const ir_node *irn, char *buf) {
- ir_node *bl = get_irn_link(irn);
+ ir_node *bl = get_cfop_target_block(irn);
- snprintf(buf, SNPRINTF_BUF_LEN, "BLOCK_%ld", get_irn_node_nr(bl));
+ snprintf(buf, SNPRINTF_BUF_LEN, BLOCK_PREFIX("%ld"), get_irn_node_nr(bl));
return buf;
}
+/** Return the next block in Block schedule */
+static ir_node *next_blk_sched(const ir_node *block) {
+ return have_block_sched ? get_irn_link(block) : NULL;
+}
+
/**
* Emits the jump sequence for a conditional jump (cmp + jmp_true + jmp_false)
*/
-static void finish_CondJmp(FILE *F, const ir_node *irn) {
- const ir_node *proj;
+static void finish_CondJmp(FILE *F, const ir_node *irn, ir_mode *mode) {
+ const ir_node *proj1, *proj2 = NULL;
+ const ir_node *block, *next_bl = NULL;
const ir_edge_t *edge;
char buf[SNPRINTF_BUF_LEN];
char cmd_buf[SNPRINTF_BUF_LEN];
char cmnt_buf[SNPRINTF_BUF_LEN];
+ /* get both Proj's */
edge = get_irn_out_edge_first(irn);
- proj = get_edge_src_irn(edge);
- assert(is_Proj(proj) && "CondJmp with a non-Proj");
+ proj1 = get_edge_src_irn(edge);
+ assert(is_Proj(proj1) && "CondJmp with a non-Proj");
+
+ edge = get_irn_out_edge_next(irn, edge);
+ if (edge) {
+ proj2 = get_edge_src_irn(edge);
+ assert(is_Proj(proj2) && "CondJmp with a non-Proj");
+ }
+
+ /* for now, the code works for scheduled and non-schedules blocks */
+ block = get_nodes_block(irn);
+ if (proj2) {
+ /* we have a block schedule */
+ next_bl = next_blk_sched(block);
+
+ if (get_cfop_target_block(proj1) == next_bl) {
+ /* exchange both proj's so the second one can be omitted */
+ const ir_node *t = proj1;
+ proj1 = proj2;
+ proj2 = t;
+ }
+ }
- if (get_Proj_proj(proj) == 1) {
+ /* the first Proj must always be created */
+ if (get_Proj_proj(proj1) == pn_Cond_true) {
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "j%s %s",
get_cmp_suffix(get_ia32_pncode(irn), !mode_is_signed(get_irn_mode(get_irn_n(irn, 0)))),
- get_cfop_target(proj, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; cmp(a, b) == TRUE");
+ get_cfop_target(proj1, buf));
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* cmp(a, b) == TRUE */");
}
else {
- snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jn%s %s",
- get_cmp_suffix(get_ia32_pncode(irn), !mode_is_signed(get_irn_mode(get_irn_n(irn, 0)))),
- get_cfop_target(proj, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; cmp(a, b) == FALSE");
+ snprintf(cmd_buf, SNPRINTF_BUF_LEN, "j%s %s",
+ get_cmp_suffix(get_negated_pnc(get_ia32_pncode(irn), mode),
+ !mode_is_signed(get_irn_mode(get_irn_n(irn, 0)))),
+ get_cfop_target(proj1, buf));
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* cmp(a, b) == FALSE */");
}
-
IA32_DO_EMIT;
- edge = get_irn_out_edge_next(irn, edge);
- if (edge) {
- proj = get_edge_src_irn(edge);
- assert(is_Proj(proj) && "CondJmp with a non-Proj");
- snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jmp %s", get_cfop_target(proj, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; otherwise");
-
+ /* the second Proj might be a fallthrough */
+ if (proj2) {
+ if (get_cfop_target_block(proj2) != next_bl) {
+ snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jmp %s", get_cfop_target(proj2, buf));
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* otherwise */");
+ }
+ else {
+ cmd_buf[0] = '\0';
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* fallthrogh %s */", get_cfop_target(proj2, buf));
+ }
IA32_DO_EMIT;
}
}
char cmnt_buf[SNPRINTF_BUF_LEN];
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "cmp %s", ia32_emit_binop(irn, env));
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F", irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F */", irn);
IA32_DO_EMIT;
- finish_CondJmp(F, irn);
+ finish_CondJmp(F, irn, get_irn_mode(get_irn_n(irn, 2)));
}
/**
* Emits code for conditional test and jump.
*/
static void TestJmp_emitter(const ir_node *irn, ia32_emit_env_t *env) {
- FILE *F = env->out;
- char cmd_buf[SNPRINTF_BUF_LEN];
- char cmnt_buf[SNPRINTF_BUF_LEN];
- const arch_register_t *in1 = get_in_reg(irn, 0);
- const arch_register_t *in2 = get_in_reg(irn, 1);
+ FILE *F = env->out;
+ const char *op1 = arch_register_get_name(get_in_reg(irn, 0));
+ const char *op2 = get_ia32_cnst(irn);
+ char cmd_buf[SNPRINTF_BUF_LEN];
+ char cmnt_buf[SNPRINTF_BUF_LEN];
+
+ if (! op2)
+ op2 = arch_register_get_name(get_in_reg(irn, 1));
- snprintf(cmd_buf, SNPRINTF_BUF_LEN, "test %s, %s ", arch_register_get_name(in1), arch_register_get_name(in2));
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F", irn);
+ snprintf(cmd_buf, SNPRINTF_BUF_LEN, "test %%%s,%s%s ", op1, get_ia32_cnst(irn) ? " " : " %", op2);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F */", irn);
IA32_DO_EMIT;
- finish_CondJmp(F, irn);
+ finish_CondJmp(F, irn, get_irn_mode(get_irn_n(irn, 0)));
}
/**
TestJmp_emitter(irn, env);
}
-/**
- * Emits code for conditional test and jump with immediate.
- */
-static void emit_ia32_TestJmp_i(const ir_node *irn, ia32_emit_env_t *env) {
- TestJmp_emitter(irn, env);
-}
+
/*********************************************************
* _ _ _
if (tbl.min_value != 0) {
lc_esnprintf(env, cmd_buf, SNPRINTF_BUF_LEN, "cmpl %lu, -%d(%1S)",
interval, tbl.min_value, irn);
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; first switch value is not 0");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* first switch value is not 0 */");
IA32_DO_EMIT;
}
else {
lc_esnprintf(env, cmd_buf, SNPRINTF_BUF_LEN, "cmpl %lu, %1S", interval, irn);
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; compare for switch");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* compare for switch */");
IA32_DO_EMIT;
}
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "ja %s", get_cfop_target(tbl.defProj, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; default jump if out of range ");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* default jump if out of range */");
IA32_DO_EMIT;
if (tbl.num_branches > 1) {
/* create table */
lc_esnprintf(env, cmd_buf, SNPRINTF_BUF_LEN, "jmp [%1S*4+%s]", irn, tbl.label);
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; get jump table entry as target");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* get jump table entry as target */");
IA32_DO_EMIT;
fprintf(F, "\t.section\t.rodata\n");
for (i = 1; i < tbl.num_branches; ++i) {
while (++last_value < tbl.branches[i].value) {
snprintf(cmd_buf, SNPRINTF_BUF_LEN, ".long %s", get_cfop_target(tbl.defProj, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; default case");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* default case */");
IA32_DO_EMIT;
}
- snprintf(cmd_buf, SNPRINTF_BUF_LEN, ".long %s", get_cfop_target(tbl.branches[i].target, buf), last_value);
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; case %d", last_value);
+ snprintf(cmd_buf, SNPRINTF_BUF_LEN, ".long %s", get_cfop_target(tbl.branches[i].target, buf));
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* case %d */", last_value);
IA32_DO_EMIT;
}
else {
/* one jump is enough */
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jmp %s", get_cfop_target(tbl.branches[0].target, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; only one case given");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* only one case given */");
IA32_DO_EMIT;
}
}
else { // no jump table
for (i = 0; i < tbl.num_branches; ++i) {
lc_esnprintf(env, cmd_buf, SNPRINTF_BUF_LEN, "cmpl %d, %1S", tbl.branches[i].value, irn);
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; case %d", i);
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* case %d */", i);
IA32_DO_EMIT;
fprintf(F, "\tje %s\n", get_cfop_target(tbl.branches[i].target, buf));
}
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jmp %s", get_cfop_target(tbl.defProj, buf));
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; default case");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* default case */");
IA32_DO_EMIT;
}
* Emits code for a unconditional jump.
*/
void emit_Jmp(const ir_node *irn, ia32_emit_env_t *env) {
+ ir_node *block, *next_bl;
FILE *F = env->out;
char buf[SNPRINTF_BUF_LEN], cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
- snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jmp %s", get_cfop_target(irn, buf), get_irn_link(irn));
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F(%+F)", irn, get_irn_link(irn));
+ /* for now, the code works for scheduled and non-schedules blocks */
+ block = get_nodes_block(irn);
+
+ /* we have a block schedule */
+ next_bl = next_blk_sched(block);
+ if (get_cfop_target_block(irn) != next_bl) {
+ snprintf(cmd_buf, SNPRINTF_BUF_LEN, "jmp %s", get_cfop_target(irn, buf));
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F(%+F) */", irn, get_cfop_target_block(irn));
+ }
+ else {
+ cmd_buf[0] = '\0';
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* fallthrough %s */", get_cfop_target(irn, buf));
+ }
IA32_DO_EMIT;
}
-
-
/****************************
* _
* (_)
switch(rem) {
case 1:
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "movsb");
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; memcopy remainder 1");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* memcopy remainder 1 */");
break;
case 2:
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "movsw");
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; memcopy remainder 2");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* memcopy remainder 2 */");
break;
case 3:
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "movsb");
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; memcopy remainder 3");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* memcopy remainder 3 */");
IA32_DO_EMIT;
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "movsw");
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; memcopy remainder 3");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* memcopy remainder 3 */");
break;
}
emit_CopyB_prolog(F, rem, size);
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "rep movsd");
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; memcopy");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* memcopy */");
IA32_DO_EMIT;
}
size >>= 2;
while (size--) {
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "movsd");
- snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "; memcopy unrolled");
+ snprintf(cmnt_buf, SNPRINTF_BUF_LEN, "/* memcopy unrolled */");
IA32_DO_EMIT;
}
}
}
snprintf(cmd_buf, SNPRINTF_BUF_LEN, "cvt%s2%s %s", from, to, buf);
- lc_esnprintf(env, cmnt_buf, SNPRINTF_BUF_LEN, "; %+F(%+F, %+F)", irn, src_mode, tgt_mode);
+ lc_esnprintf(env, cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F(%+F, %+F) */", irn, src_mode, tgt_mode);
IA32_DO_EMIT;
}
lc_esnprintf(ia32_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "%1D", get_irn_n(irn, be_pos_Call_ptr));
}
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F (be_Call)", irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F (be_Call) */", irn);
IA32_DO_EMIT;
}
if (offs) {
lc_esnprintf(ia32_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "add %1S,%s%u", irn,
(dir == be_stack_dir_along) ? " -" : " ", offs);
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F (IncSP)", irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F (IncSP) */", irn);
}
else {
snprintf(cmd_buf, SNPRINTF_BUF_LEN, " ");
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; omitted %+F (IncSP) with 0", irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* omitted %+F (IncSP) with 0 */", irn);
}
IA32_DO_EMIT;
char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
lc_esnprintf(ia32_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "mov %1D, %3S", irn, irn);
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F (restore SP)", irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F (restore SP) */", irn);
IA32_DO_EMIT;
}
char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
lc_esnprintf(ia32_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "mov %1D, %1S", irn, irn);
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F", irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F */", irn);
IA32_DO_EMIT;
}
char cmd_buf[SNPRINTF_BUF_LEN], cmnt_buf[SNPRINTF_BUF_LEN];
lc_esnprintf(ia32_get_arg_env(), cmd_buf, SNPRINTF_BUF_LEN, "xchg %1S, %2S", irn, irn);
- lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "; %+F(%1A, %2A)", irn, irn, irn);
+ lc_esnprintf(ia32_get_arg_env(), cmnt_buf, SNPRINTF_BUF_LEN, "/* %+F(%1A, %2A) */", irn, irn, irn);
IA32_DO_EMIT;
}
(*emit)(irn, env);
}
else {
- ir_fprintf(F, "\t%35s ; %+F \n", " ", irn);
+ ir_fprintf(F, "\t%35s /* %+F */\n", " ", irn);
}
}
if (! is_Block(block))
return;
- fprintf(((ia32_emit_env_t *)env)->out, "BLOCK_%ld:\n", get_irn_node_nr(block));
+ fprintf(((ia32_emit_env_t *)env)->out, BLOCK_PREFIX("%ld:\n"), get_irn_node_nr(block));
sched_foreach(block, irn) {
ia32_emit_node(irn, env);
}
}
-
/**
* Emits code for function start.
*/
entity *irg_ent = get_irg_entity(irg);
const char *irg_name = get_entity_name(irg_ent);
- fprintf(F, "\tsection .text\n");
+ fprintf(F, "\t.text\n");
if (get_entity_visibility(irg_ent) == visibility_external_visible) {
- fprintf(F, "global %s\n", irg_name);
+ fprintf(F, ".globl %s\n", irg_name);
}
-// fprintf(F, "\t.type\t%s, @function\n", irg_name);
+ fprintf(F, "\t.type\t%s, @function\n", irg_name);
fprintf(F, "%s:\n", irg_name);
}
static void ia32_emit_func_epilog(FILE *F, ir_graph *irg) {
const char *irg_name = get_entity_name(get_irg_entity(irg));
- fprintf(F, "\tret\n\n");
- //printf(F, "\t.size\t%s, .-%s\n\n", irg_name, irg_name);
+ fprintf(F, "\tret\n");
+ fprintf(F, "\t.size\t%s, .-%s\n\n", irg_name, irg_name);
}
/**
+ * Block-walker:
* Sets labels for control flow nodes (jump target)
* TODO: Jump optimization
*/
}
}
+typedef struct {
+ ir_node *start;
+ ir_node *end;
+} anchor;
+
+/**
+ * Ext-Block walker: create a block schedule
+ */
+static void create_block_list(ir_extblk *blk, void *env) {
+ anchor *list = env;
+ int i, n;
+
+ for (i = 0, n = get_extbb_n_blocks(blk); i < n; ++i) {
+ ir_node *block = get_extbb_block(blk, i);
+
+ set_irn_link(block, NULL);
+ if (list->start)
+ set_irn_link(list->end, block);
+ else
+ list->start = block;
+
+ list->end = block;
+ }
+}
+
/**
* Main driver. Emits the code for one routine.
*/
void ia32_gen_routine(FILE *F, ir_graph *irg, const ia32_code_gen_t *cg) {
ia32_emit_env_t emit_env;
+ anchor list;
+ ir_node *block;
- emit_env.mod = firm_dbg_register("ir.be.codegen.ia32");
+ emit_env.mod = firm_dbg_register("firm.be.ia32.emitter");
emit_env.out = F;
emit_env.arch_env = cg->arch_env;
emit_env.cg = cg;
ia32_emit_func_prolog(F, irg);
irg_block_walk_graph(irg, ia32_gen_labels, NULL, &emit_env);
- irg_walk_blkwise_graph(irg, NULL, ia32_gen_block, &emit_env);
+
+ if (cg->opt.extbb) {
+ /* schedule extended basic blocks */
+
+ compute_extbb(irg);
+
+ list.start = NULL;
+ list.end = NULL;
+ irg_extblock_walk_graph(irg, NULL, create_block_list, &list);
+
+ have_block_sched = 1;
+ for (block = list.start; block; block = get_irn_link(block))
+ ia32_gen_block(block, &emit_env);
+ }
+ else {
+ /* "normal" block schedule */
+
+ have_block_sched = 0;
+ irg_walk_blkwise_graph(irg, NULL, ia32_gen_block, &emit_env);
+ }
+
ia32_emit_func_epilog(F, irg);
}
projects / libfirm / blobdiff