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tcg/ppc64: implement setcond 

Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
malc 2010-02-07 02:48:53 +03:00
parent 27a7797b09
commit 1cd62ae9f8
1 changed files with 133 additions and 0 deletions
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133
tcg/ppc64/tcg-target.c
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@ -305,6 +305,7 @@ static int tcg_target_const_match (tcg_target_long val,
#define LWA XO58( 2)
#define LWAX XO31(341)
#define ADDIC OPCD( 12)
#define ADDI OPCD( 14)
#define ADDIS OPCD( 15)
#define ORI OPCD( 24)
@ -332,6 +333,7 @@ static int tcg_target_const_match (tcg_target_long val,
#define CRANDC XO19(129)
#define CRNAND XO19(225)
#define CROR XO19(449)
#define CRNOR XO19( 33)
#define EXTSB XO31(954)
#define EXTSH XO31(922)
@ -359,6 +361,9 @@ static int tcg_target_const_match (tcg_target_long val,
#define MTSPR XO31(467)
#define SRAWI XO31(824)
#define NEG XO31(104)
#define MFCR XO31( 19)
#define CNTLZW XO31( 26)
#define CNTLZD XO31( 58)
#define MULLD XO31(233)
#define MULHD XO31( 73)
@ -1044,6 +1049,122 @@ static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
}
static void tcg_out_setcond (TCGContext *s, TCGType type, int cond, TCGArg arg0,
TCGArg arg1, TCGArg arg2, int const_arg2)
{
int crop, sh, arg;
switch (cond) {
case TCG_COND_EQ:
if (const_arg2) {
if (!arg2) {
arg = arg1;
}
else {
arg = 0;
if ((uint16_t) arg2 == arg2) {
tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
}
else {
tcg_out_movi (s, type, 0, arg2);
tcg_out32 (s, XOR | SAB (arg1, 0, 0));
}
}
}
else {
arg = 0;
tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
}
if (type == TCG_TYPE_I64) {
tcg_out32 (s, CNTLZD | RS (arg) | RA (0));
tcg_out_rld (s, RLDICL, arg0, 0, 58, 6);
}
else {
tcg_out32 (s, CNTLZW | RS (arg) | RA (0));
tcg_out32 (s, (RLWINM
| RA (arg0)
| RS (0)
| SH (27)
| MB (5)
| ME (31)
)
);
}
break;
case TCG_COND_NE:
if (const_arg2) {
if (!arg2) {
arg = arg1;
}
else {
arg = 0;
if ((uint16_t) arg2 == arg2) {
tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
}
else {
tcg_out_movi (s, type, 0, arg2);
tcg_out32 (s, XOR | SAB (arg1, 0, 0));
}
}
}
else {
arg = 0;
tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
}
if (arg == arg1 && arg1 == arg0) {
tcg_out32 (s, ADDIC | RT (0) | RA (arg) | 0xffff);
tcg_out32 (s, SUBFE | TAB (arg0, 0, arg));
}
else {
tcg_out32 (s, ADDIC | RT (arg0) | RA (arg) | 0xffff);
tcg_out32 (s, SUBFE | TAB (arg0, arg0, arg));
}
break;
case TCG_COND_GT:
case TCG_COND_GTU:
sh = 30;
crop = 0;
goto crtest;
case TCG_COND_LT:
case TCG_COND_LTU:
sh = 29;
crop = 0;
goto crtest;
case TCG_COND_GE:
case TCG_COND_GEU:
sh = 31;
crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_LT) | BB (7, CR_LT);
goto crtest;
case TCG_COND_LE:
case TCG_COND_LEU:
sh = 31;
crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_GT) | BB (7, CR_GT);
crtest:
tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7, type == TCG_TYPE_I64);
if (crop) tcg_out32 (s, crop);
tcg_out32 (s, MFCR | RT (0));
tcg_out32 (s, (RLWINM
| RA (arg0)
| RS (0)
| SH (sh)
| MB (31)
| ME (31)
)
);
break;
default:
tcg_abort ();
}
}
static void tcg_out_bc (TCGContext *s, int bc, int label_index)
{
TCGLabel *l = &s->labels[label_index];
@ -1433,6 +1554,15 @@ static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args,
tcg_out32 (s, c | RS (args[1]) | RA (args[0]));
break;
case INDEX_op_setcond_i32:
tcg_out_setcond (s, TCG_TYPE_I32, args[3], args[0], args[1], args[2],
const_args[2]);
break;
case INDEX_op_setcond_i64:
tcg_out_setcond (s, TCG_TYPE_I64, args[3], args[0], args[1], args[2],
const_args[2]);
break;
default:
tcg_dump_ops (s, stderr);
tcg_abort ();
@ -1530,6 +1660,9 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_ext16s_i64, { "r", "r" } },
{ INDEX_op_ext32s_i64, { "r", "r" } },
{ INDEX_op_setcond_i32, { "r", "r", "ri" } },
{ INDEX_op_setcond_i64, { "r", "r", "ri" } },
{ -1 },
};