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tcg/i386: Implement tcg_out_dupm_vec

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At the same time, improve tcg_out_dupi_vec wrt broadcast
from the constant pool.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-03-18 12:02:54 -07:00
parent d6ecb4a978
commit 1e262b49b5
1 changed files with 43 additions and 14 deletions
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57
tcg/i386/tcg-target.inc.c
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@ -358,7 +358,6 @@ static inline int tcg_target_const_match(tcg_target_long val, TCGType type,
#define OPC_MOVBE_MyGy (0xf1 | P_EXT38)
#define OPC_MOVD_VyEy (0x6e | P_EXT | P_DATA16)
#define OPC_MOVD_EyVy (0x7e | P_EXT | P_DATA16)
#define OPC_MOVDDUP (0x12 | P_EXT | P_SIMDF2)
#define OPC_MOVDQA_VxWx (0x6f | P_EXT | P_DATA16)
#define OPC_MOVDQA_WxVx (0x7f | P_EXT | P_DATA16)
#define OPC_MOVDQU_VxWx (0x6f | P_EXT | P_SIMDF3)
@ -458,6 +457,10 @@ static inline int tcg_target_const_match(tcg_target_long val, TCGType type,
#define OPC_UD2 (0x0b | P_EXT)
#define OPC_VPBLENDD (0x02 | P_EXT3A | P_DATA16)
#define OPC_VPBLENDVB (0x4c | P_EXT3A | P_DATA16)
#define OPC_VPINSRB (0x20 | P_EXT3A | P_DATA16)
#define OPC_VPINSRW (0xc4 | P_EXT | P_DATA16)
#define OPC_VBROADCASTSS (0x18 | P_EXT38 | P_DATA16)
#define OPC_VBROADCASTSD (0x19 | P_EXT38 | P_DATA16)
#define OPC_VPBROADCASTB (0x78 | P_EXT38 | P_DATA16)
#define OPC_VPBROADCASTW (0x79 | P_EXT38 | P_DATA16)
#define OPC_VPBROADCASTD (0x58 | P_EXT38 | P_DATA16)
@ -855,16 +858,17 @@ static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
return true;
}
static const int avx2_dup_insn[4] = {
OPC_VPBROADCASTB, OPC_VPBROADCASTW,
OPC_VPBROADCASTD, OPC_VPBROADCASTQ,
};
static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece,
TCGReg r, TCGReg a)
{
if (have_avx2) {
static const int dup_insn[4] = {
OPC_VPBROADCASTB, OPC_VPBROADCASTW,
OPC_VPBROADCASTD, OPC_VPBROADCASTQ,
};
int vex_l = (type == TCG_TYPE_V256 ? P_VEXL : 0);
tcg_out_vex_modrm(s, dup_insn[vece] + vex_l, r, 0, a);
tcg_out_vex_modrm(s, avx2_dup_insn[vece] + vex_l, r, 0, a);
} else {
switch (vece) {
case MO_8:
@ -894,10 +898,35 @@ static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece,
static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
TCGReg r, TCGReg base, intptr_t offset)
{
return false;
if (have_avx2) {
int vex_l = (type == TCG_TYPE_V256 ? P_VEXL : 0);
tcg_out_vex_modrm_offset(s, avx2_dup_insn[vece] + vex_l,
r, 0, base, offset);
} else {
switch (vece) {
case MO_64:
tcg_out_vex_modrm_offset(s, OPC_VBROADCASTSD, r, 0, base, offset);
break;
case MO_32:
tcg_out_vex_modrm_offset(s, OPC_VBROADCASTSS, r, 0, base, offset);
break;
case MO_16:
tcg_out_vex_modrm_offset(s, OPC_VPINSRW, r, r, base, offset);
tcg_out8(s, 0); /* imm8 */
tcg_out_dup_vec(s, type, vece, r, r);
break;
case MO_8:
tcg_out_vex_modrm_offset(s, OPC_VPINSRB, r, r, base, offset);
tcg_out8(s, 0); /* imm8 */
tcg_out_dup_vec(s, type, vece, r, r);
break;
default:
g_assert_not_reached();
}
}
return true;
}
static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg)
{
@ -918,16 +947,16 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
} else if (have_avx2) {
tcg_out_vex_modrm_pool(s, OPC_VPBROADCASTQ + vex_l, ret);
} else {
tcg_out_vex_modrm_pool(s, OPC_MOVDDUP, ret);
tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSD, ret);
}
new_pool_label(s, arg, R_386_PC32, s->code_ptr - 4, -4);
} else if (have_avx2) {
tcg_out_vex_modrm_pool(s, OPC_VPBROADCASTD + vex_l, ret);
new_pool_label(s, arg, R_386_32, s->code_ptr - 4, 0);
} else {
tcg_out_vex_modrm_pool(s, OPC_MOVD_VyEy, ret);
if (have_avx2) {
tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSD + vex_l, ret);
} else {
tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSS, ret);
}
new_pool_label(s, arg, R_386_32, s->code_ptr - 4, 0);
tcg_out_dup_vec(s, type, MO_32, ret, ret);
}
}