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target/arm: Use gvec for NEON VMOV, VMVN, VBIC & VORR (immediate)

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Backports commit 246fa4aca95e213fba10c8222dbc6bd0a9a2a8d4 from qemu
This commit is contained in:
Richard Henderson 2018-11-10 09:56:27 -05:00 committed by Lioncash
parent c1251a19e1
commit 9f767248a2
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 38 additions and 28 deletions
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66
qemu/target/arm/translate.c
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@ -6806,7 +6806,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
return 1;
}
} else { /* (insn & 0x00380080) == 0 */
int invert;
int invert, reg_ofs, vec_size;
if (q && (rd & 1)) {
return 1;
}
@ -6846,8 +6847,9 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break;
case 14:
imm |= (imm << 8) | (imm << 16) | (imm << 24);
if (invert)
if (invert) {
imm = ~imm;
}
break;
case 15:
if (invert) {
@ -6857,36 +6859,44 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
| ((imm & 0x40) ? (0x1f << 25) : (1 << 30));
break;
}
if (invert)
if (invert) {
imm = ~imm;
}
for (pass = 0; pass < (q ? 4 : 2); pass++) {
if (op & 1 && op < 12) {
tmp = neon_load_reg(s, rd, pass);
if (invert) {
/* The immediate value has already been inverted, so
BIC becomes AND. */
tcg_gen_andi_i32(tcg_ctx, tmp, tmp, imm);
} else {
tcg_gen_ori_i32(tcg_ctx, tmp, tmp, imm);
}
reg_ofs = neon_reg_offset(rd, 0);
vec_size = q ? 16 : 8;
if (op & 1 && op < 12) {
if (invert) {
/* The immediate value has already been inverted,
* so BIC becomes AND.
*/
tcg_gen_gvec_andi(tcg_ctx, MO_32, reg_ofs, reg_ofs, imm,
vec_size, vec_size);
} else {
/* VMOV, VMVN. */
tmp = tcg_temp_new_i32(tcg_ctx);
if (op == 14 && invert) {
int n;
uint32_t val;
val = 0;
for (n = 0; n < 4; n++) {
if (imm & (1 << (n + (pass & 1) * 4)))
val |= 0xff << (n * 8);
}
tcg_gen_movi_i32(tcg_ctx, tmp, val);
} else {
tcg_gen_movi_i32(tcg_ctx, tmp, imm);
}
tcg_gen_gvec_ori(tcg_ctx, MO_32, reg_ofs, reg_ofs, imm,
vec_size, vec_size);
}
} else {
/* VMOV, VMVN. */
if (op == 14 && invert) {
TCGv_i64 t64 = tcg_temp_new_i64(tcg_ctx);
for (pass = 0; pass <= q; ++pass) {
uint64_t val = 0;
int n;
for (n = 0; n < 8; n++) {
if (imm & (1 << (n + pass * 8))) {
val |= 0xffull << (n * 8);
}
}
tcg_gen_movi_i64(tcg_ctx, t64, val);
neon_store_reg64(t64, rd + pass);
}
tcg_temp_free_i64(tcg_ctx, t64);
} else {
tcg_gen_gvec_dup32i(tcg_ctx, reg_ofs, vec_size, vec_size, imm);
}
neon_store_reg(s, rd, pass, tmp);
}
}
} else { /* (insn & 0x00800010 == 0x00800000) */