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tcg/ppc32: implement setcond[2] 

Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
malc 2010-02-07 02:18:06 +03:00
parent bc5b600458
commit b0809bf7ca
1 changed files with 157 additions and 14 deletions
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171
tcg/ppc/tcg-target.c
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@ -316,6 +316,7 @@ static int tcg_target_const_match(tcg_target_long val,
#define STH OPCD(44)
#define STW OPCD(36)
#define ADDIC OPCD(12)
#define ADDI OPCD(14)
#define ADDIS OPCD(15)
#define ORI OPCD(24)
@ -339,6 +340,7 @@ 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)
@ -365,6 +367,8 @@ 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 LBZX XO31( 87)
#define LHZX XO31(279)
@ -1065,20 +1069,10 @@ static void tcg_out_bc (TCGContext *s, int bc, int label_index)
}
}
static void tcg_out_brcond (TCGContext *s, int cond,
TCGArg arg1, TCGArg arg2, int const_arg2,
int label_index)
static void tcg_out_cr7eq_from_cond (TCGContext *s, const TCGArg *args,
const int *const_args)
{
tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
tcg_out_bc (s, tcg_to_bc[cond], label_index);
}
/* XXX: we implement it at the target level to avoid having to
handle cross basic blocks temporaries */
static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
const int *const_args)
{
int cond = args[4], label_index = args[5], op;
int cond = args[4], op;
struct { int bit1; int bit2; int cond2; } bits[] = {
[TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT },
[TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT },
@ -1116,8 +1110,147 @@ static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
default:
tcg_abort();
}
}
tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), label_index);
static void tcg_out_setcond (TCGContext *s, 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, TCG_TYPE_I32, 0, arg2);
tcg_out32 (s, XOR | SAB (arg1, 0, 0));
}
}
}
else {
arg = 0;
tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
}
tcg_out32 (s, CNTLZW | RS (arg) | RA (0));
tcg_out32 (s, (RLWINM
| RA (arg0)
| RS (0)
| SH (27)
| MB (5)
| ME (31)
)
);
return;
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, TCG_TYPE_I32, 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));
}
return;
case TCG_COND_LTU:
case TCG_COND_LT:
sh = 29;
crop = 0;
break;
case TCG_COND_GEU:
case TCG_COND_GE:
sh = 31;
crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_LT) | BB (7, CR_LT);
break;
case TCG_COND_LEU:
case TCG_COND_LE:
sh = 31;
crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_GT) | BB (7, CR_GT);
break;
case TCG_COND_GTU:
case TCG_COND_GT:
sh = 30;
crop = 0;
break;
default:
tcg_abort ();
}
tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
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)
)
);
}
static void tcg_out_setcond2 (TCGContext *s, const TCGArg *args,
const int *const_args)
{
tcg_out_cr7eq_from_cond (s, args + 1, const_args + 1);
tcg_out32 (s, MFCR | RT (0));
tcg_out32 (s, (RLWINM
| RA (args[0])
| RS (0)
| SH (31)
| MB (31)
| ME (31)
)
);
}
static void tcg_out_brcond (TCGContext *s, int cond,
TCGArg arg1, TCGArg arg2, int const_arg2,
int label_index)
{
tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
tcg_out_bc (s, tcg_to_bc[cond], label_index);
}
/* XXX: we implement it at the target level to avoid having to
handle cross basic blocks temporaries */
static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
const int *const_args)
{
tcg_out_cr7eq_from_cond (s, args, const_args);
tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), args[5]);
}
void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
@ -1496,6 +1629,13 @@ static void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
tcg_out32 (s, EXTSH | RS (args[1]) | RA (args[0]));
break;
case INDEX_op_setcond_i32:
tcg_out_setcond (s, args[3], args[0], args[1], args[2], const_args[2]);
break;
case INDEX_op_setcond2_i32:
tcg_out_setcond2 (s, args, const_args);
break;
default:
tcg_dump_ops (s, stderr);
tcg_abort ();
@ -1544,6 +1684,9 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_neg_i32, { "r", "r" } },
{ INDEX_op_setcond_i32, { "r", "r", "ri" } },
{ INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
#if TARGET_LONG_BITS == 32
{ INDEX_op_qemu_ld8u, { "r", "L" } },
{ INDEX_op_qemu_ld8s, { "r", "L" } },