These are the last instructions within handle_3same_float
and disas_simd_scalar_three_reg_same_fp16 so remove them.
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/arm/tcg/a64.decode | 12 ++
target/arm/tcg/translate-a64.c | 293 ++++-----------------------------
2 files changed, 46 insertions(+), 259 deletions(-)
diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode
index a852b5f06f..84cb38f1dd 100644
--- a/target/arm/tcg/a64.decode
+++ b/target/arm/tcg/a64.decode
@@ -731,6 +731,12 @@ FACGT_s 0111 1110 1.1 ..... 11101 1 ..... .....
@rrr_sd
FABD_s 0111 1110 110 ..... 00010 1 ..... ..... @rrr_h
FABD_s 0111 1110 1.1 ..... 11010 1 ..... ..... @rrr_sd
+FRECPS_s 0101 1110 010 ..... 00111 1 ..... ..... @rrr_h
+FRECPS_s 0101 1110 0.1 ..... 11111 1 ..... ..... @rrr_sd
+
+FRSQRTS_s 0101 1110 110 ..... 00111 1 ..... ..... @rrr_h
+FRSQRTS_s 0101 1110 1.1 ..... 11111 1 ..... ..... @rrr_sd
+
### Advanced SIMD three same
FADD_v 0.00 1110 010 ..... 00010 1 ..... ..... @qrrr_h
@@ -784,6 +790,12 @@ FACGT_v 0.10 1110 1.1 ..... 11101 1 ..... .....
@qrrr_sd
FABD_v 0.10 1110 110 ..... 00010 1 ..... ..... @qrrr_h
FABD_v 0.10 1110 1.1 ..... 11010 1 ..... ..... @qrrr_sd
+FRECPS_v 0.00 1110 010 ..... 00111 1 ..... ..... @qrrr_h
+FRECPS_v 0.00 1110 0.1 ..... 11111 1 ..... ..... @qrrr_sd
+
+FRSQRTS_v 0.00 1110 110 ..... 00111 1 ..... ..... @qrrr_h
+FRSQRTS_v 0.00 1110 1.1 ..... 11111 1 ..... ..... @qrrr_sd
+
### Advanced SIMD scalar x indexed element
FMUL_si 0101 1111 00 .. .... 1001 . 0 ..... ..... @rrx_h
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 633384d2a5..a7537a5104 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -5035,6 +5035,20 @@ static const FPScalar f_scalar_fabd = {
};
TRANS(FABD_s, do_fp3_scalar, a, &f_scalar_fabd)
+static const FPScalar f_scalar_frecps = {
+ gen_helper_recpsf_f16,
+ gen_helper_recpsf_f32,
+ gen_helper_recpsf_f64,
+};
+TRANS(FRECPS_s, do_fp3_scalar, a, &f_scalar_frecps)
+
+static const FPScalar f_scalar_frsqrts = {
+ gen_helper_rsqrtsf_f16,
+ gen_helper_rsqrtsf_f32,
+ gen_helper_rsqrtsf_f64,
+};
+TRANS(FRSQRTS_s, do_fp3_scalar, a, &f_scalar_frsqrts)
+
static bool do_fp3_vector(DisasContext *s, arg_qrrr_e *a,
gen_helper_gvec_3_ptr * const fns[3])
{
@@ -5182,6 +5196,20 @@ static gen_helper_gvec_3_ptr * const f_vector_fabd[3] = {
};
TRANS(FABD_v, do_fp3_vector, a, f_vector_fabd)
+static gen_helper_gvec_3_ptr * const f_vector_frecps[3] = {
+ gen_helper_gvec_recps_h,
+ gen_helper_gvec_recps_s,
+ gen_helper_gvec_recps_d,
+};
+TRANS(FRECPS_v, do_fp3_vector, a, f_vector_frecps)
+
+static gen_helper_gvec_3_ptr * const f_vector_frsqrts[3] = {
+ gen_helper_gvec_rsqrts_h,
+ gen_helper_gvec_rsqrts_s,
+ gen_helper_gvec_rsqrts_d,
+};
+TRANS(FRSQRTS_v, do_fp3_vector, a, f_vector_frsqrts)
+
/*
* Advanced SIMD scalar/vector x indexed element
*/
@@ -9308,107 +9336,6 @@ static void handle_3same_64(DisasContext *s, int
opcode, bool u,
}
}
-/* Handle the 3-same-operands float operations; shared by the scalar
- * and vector encodings. The caller must filter out any encodings
- * not allocated for the encoding it is dealing with.
- */
-static void handle_3same_float(DisasContext *s, int size, int elements,
- int fpopcode, int rd, int rn, int rm)
-{
- int pass;
- TCGv_ptr fpst = fpstatus_ptr(FPST_FPCR);
-
- for (pass = 0; pass < elements; pass++) {
- if (size) {
- /* Double */
- TCGv_i64 tcg_op1 = tcg_temp_new_i64();
- TCGv_i64 tcg_op2 = tcg_temp_new_i64();
- TCGv_i64 tcg_res = tcg_temp_new_i64();
-
- read_vec_element(s, tcg_op1, rn, pass, MO_64);
- read_vec_element(s, tcg_op2, rm, pass, MO_64);
-
- switch (fpopcode) {
- case 0x1f: /* FRECPS */
- gen_helper_recpsf_f64(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- case 0x3f: /* FRSQRTS */
- gen_helper_rsqrtsf_f64(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- default:
- case 0x18: /* FMAXNM */
- case 0x19: /* FMLA */
- case 0x1a: /* FADD */
- case 0x1b: /* FMULX */
- case 0x1c: /* FCMEQ */
- case 0x1e: /* FMAX */
- case 0x38: /* FMINNM */
- case 0x39: /* FMLS */
- case 0x3a: /* FSUB */
- case 0x3e: /* FMIN */
- case 0x5b: /* FMUL */
- case 0x5c: /* FCMGE */
- case 0x5d: /* FACGE */
- case 0x5f: /* FDIV */
- case 0x7a: /* FABD */
- case 0x7c: /* FCMGT */
- case 0x7d: /* FACGT */
- g_assert_not_reached();
- }
-
- write_vec_element(s, tcg_res, rd, pass, MO_64);
- } else {
- /* Single */
- TCGv_i32 tcg_op1 = tcg_temp_new_i32();
- TCGv_i32 tcg_op2 = tcg_temp_new_i32();
- TCGv_i32 tcg_res = tcg_temp_new_i32();
-
- read_vec_element_i32(s, tcg_op1, rn, pass, MO_32);
- read_vec_element_i32(s, tcg_op2, rm, pass, MO_32);
-
- switch (fpopcode) {
- case 0x1f: /* FRECPS */
- gen_helper_recpsf_f32(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- case 0x3f: /* FRSQRTS */
- gen_helper_rsqrtsf_f32(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- default:
- case 0x18: /* FMAXNM */
- case 0x19: /* FMLA */
- case 0x1a: /* FADD */
- case 0x1b: /* FMULX */
- case 0x1c: /* FCMEQ */
- case 0x1e: /* FMAX */
- case 0x38: /* FMINNM */
- case 0x39: /* FMLS */
- case 0x3a: /* FSUB */
- case 0x3e: /* FMIN */
- case 0x5b: /* FMUL */
- case 0x5c: /* FCMGE */
- case 0x5d: /* FACGE */
- case 0x5f: /* FDIV */
- case 0x7a: /* FABD */
- case 0x7c: /* FCMGT */
- case 0x7d: /* FACGT */
- g_assert_not_reached();
- }
-
- if (elements == 1) {
- /* scalar single so clear high part */
- TCGv_i64 tcg_tmp = tcg_temp_new_i64();
-
- tcg_gen_extu_i32_i64(tcg_tmp, tcg_res);
- write_vec_element(s, tcg_tmp, rd, pass, MO_64);
- } else {
- write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
- }
- }
- }
-
- clear_vec_high(s, elements * (size ? 8 : 4) > 8, rd);
-}
-
/* AdvSIMD scalar three same
* 31 30 29 28 24 23 22 21 20 16 15 11 10 9 5 4 0
* +-----+---+-----------+------+---+------+--------+---+------+------+
@@ -9425,33 +9352,6 @@ static void
disas_simd_scalar_three_reg_same(DisasContext *s, uint32_t insn)
bool u = extract32(insn, 29, 1);
TCGv_i64 tcg_rd;
- if (opcode >= 0x18) {
- /* Floating point: U, size[1] and opcode indicate operation */
- int fpopcode = opcode | (extract32(size, 1, 1) << 5) | (u << 6);
- switch (fpopcode) {
- case 0x1f: /* FRECPS */
- case 0x3f: /* FRSQRTS */
- break;
- default:
- case 0x1b: /* FMULX */
- case 0x5d: /* FACGE */
- case 0x7d: /* FACGT */
- case 0x1c: /* FCMEQ */
- case 0x5c: /* FCMGE */
- case 0x7a: /* FABD */
- case 0x7c: /* FCMGT */
- unallocated_encoding(s);
- return;
- }
-
- if (!fp_access_check(s)) {
- return;
- }
-
- handle_3same_float(s, extract32(size, 0, 1), 1, fpopcode, rd, rn, rm);
- return;
- }
-
switch (opcode) {
case 0x1: /* SQADD, UQADD */
case 0x5: /* SQSUB, UQSUB */
@@ -9568,80 +9468,6 @@ static void
disas_simd_scalar_three_reg_same(DisasContext *s, uint32_t insn)
write_fp_dreg(s, rd, tcg_rd);
}
-/* AdvSIMD scalar three same FP16
- * 31 30 29 28 24 23 22 21 20 16 15 14 13 11 10 9 5 4 0
- * +-----+---+-----------+---+-----+------+-----+--------+---+----+----+
- * | 0 1 | U | 1 1 1 1 0 | a | 1 0 | Rm | 0 0 | opcode | 1 | Rn | Rd |
- * +-----+---+-----------+---+-----+------+-----+--------+---+----+----+
- * v: 0101 1110 0100 0000 0000 0100 0000 0000 => 5e400400
- * m: 1101 1111 0110 0000 1100 0100 0000 0000 => df60c400
- */
-static void disas_simd_scalar_three_reg_same_fp16(DisasContext *s,
- uint32_t insn)
-{
- int rd = extract32(insn, 0, 5);
- int rn = extract32(insn, 5, 5);
- int opcode = extract32(insn, 11, 3);
- int rm = extract32(insn, 16, 5);
- bool u = extract32(insn, 29, 1);
- bool a = extract32(insn, 23, 1);
- int fpopcode = opcode | (a << 3) | (u << 4);
- TCGv_ptr fpst;
- TCGv_i32 tcg_op1;
- TCGv_i32 tcg_op2;
- TCGv_i32 tcg_res;
-
- switch (fpopcode) {
- case 0x07: /* FRECPS */
- case 0x0f: /* FRSQRTS */
- break;
- default:
- case 0x03: /* FMULX */
- case 0x04: /* FCMEQ (reg) */
- case 0x14: /* FCMGE (reg) */
- case 0x15: /* FACGE */
- case 0x1a: /* FABD */
- case 0x1c: /* FCMGT (reg) */
- case 0x1d: /* FACGT */
- unallocated_encoding(s);
- return;
- }
-
- if (!dc_isar_feature(aa64_fp16, s)) {
- unallocated_encoding(s);
- }
-
- if (!fp_access_check(s)) {
- return;
- }
-
- fpst = fpstatus_ptr(FPST_FPCR_F16);
-
- tcg_op1 = read_fp_hreg(s, rn);
- tcg_op2 = read_fp_hreg(s, rm);
- tcg_res = tcg_temp_new_i32();
-
- switch (fpopcode) {
- case 0x07: /* FRECPS */
- gen_helper_recpsf_f16(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- case 0x0f: /* FRSQRTS */
- gen_helper_rsqrtsf_f16(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- default:
- case 0x03: /* FMULX */
- case 0x04: /* FCMEQ (reg) */
- case 0x14: /* FCMGE (reg) */
- case 0x15: /* FACGE */
- case 0x1a: /* FABD */
- case 0x1c: /* FCMGT (reg) */
- case 0x1d: /* FACGT */
- g_assert_not_reached();
- }
-
- write_fp_sreg(s, rd, tcg_res);
-}
-
/* AdvSIMD scalar three same extra
* 31 30 29 28 24 23 22 21 20 16 15 14 11 10 9 5 4 0
* +-----+---+-----------+------+---+------+---+--------+---+----+----+
@@ -11114,7 +10940,7 @@ static void disas_simd_3same_logic(DisasContext *s,
uint32_t insn)
/* Pairwise op subgroup of C3.6.16.
*
- * This is called directly or via the handle_3same_float for float pairwise
+ * This is called directly for float pairwise
* operations where the opcode and size are calculated differently.
*/
static void handle_simd_3same_pair(DisasContext *s, int is_q, int u, int
opcode,
@@ -11271,10 +11097,6 @@ static void disas_simd_3same_float(DisasContext *s,
uint32_t insn)
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
- int datasize = is_q ? 128 : 64;
- int esize = 32 << size;
- int elements = datasize / esize;
-
if (size == 1 && !is_q) {
unallocated_encoding(s);
return;
@@ -11293,13 +11115,6 @@ static void disas_simd_3same_float(DisasContext *s,
uint32_t insn)
handle_simd_3same_pair(s, is_q, 0, fpopcode, size ? MO_64 : MO_32,
rn, rm, rd);
return;
- case 0x1f: /* FRECPS */
- case 0x3f: /* FRSQRTS */
- if (!fp_access_check(s)) {
- return;
- }
- handle_3same_float(s, size, elements, fpopcode, rd, rn, rm);
- return;
case 0x1d: /* FMLAL */
case 0x3d: /* FMLSL */
@@ -11328,10 +11143,12 @@ static void disas_simd_3same_float(DisasContext *s,
uint32_t insn)
case 0x1b: /* FMULX */
case 0x1c: /* FCMEQ */
case 0x1e: /* FMAX */
+ case 0x1f: /* FRECPS */
case 0x38: /* FMINNM */
case 0x39: /* FMLS */
case 0x3a: /* FSUB */
case 0x3e: /* FMIN */
+ case 0x3f: /* FRSQRTS */
case 0x5b: /* FMUL */
case 0x5c: /* FCMGE */
case 0x5d: /* FACGE */
@@ -11673,17 +11490,11 @@ static void
disas_simd_three_reg_same_fp16(DisasContext *s, uint32_t insn)
* together indicate the operation.
*/
int fpopcode = opcode | (a << 3) | (u << 4);
- int datasize = is_q ? 128 : 64;
- int elements = datasize / 16;
bool pairwise;
TCGv_ptr fpst;
int pass;
switch (fpopcode) {
- case 0x7: /* FRECPS */
- case 0xf: /* FRSQRTS */
- pairwise = false;
- break;
case 0x10: /* FMAXNMP */
case 0x12: /* FADDP */
case 0x16: /* FMAXP */
@@ -11698,10 +11509,12 @@ static void
disas_simd_three_reg_same_fp16(DisasContext *s, uint32_t insn)
case 0x3: /* FMULX */
case 0x4: /* FCMEQ */
case 0x6: /* FMAX */
+ case 0x7: /* FRECPS */
case 0x8: /* FMINNM */
case 0x9: /* FMLS */
case 0xa: /* FSUB */
case 0xe: /* FMIN */
+ case 0xf: /* FRSQRTS */
case 0x13: /* FMUL */
case 0x14: /* FCMGE */
case 0x15: /* FACGE */
@@ -11765,44 +11578,7 @@ static void
disas_simd_three_reg_same_fp16(DisasContext *s, uint32_t insn)
write_vec_element_i32(s, tcg_res[pass], rd, pass, MO_16);
}
} else {
- for (pass = 0; pass < elements; pass++) {
- TCGv_i32 tcg_op1 = tcg_temp_new_i32();
- TCGv_i32 tcg_op2 = tcg_temp_new_i32();
- TCGv_i32 tcg_res = tcg_temp_new_i32();
-
- read_vec_element_i32(s, tcg_op1, rn, pass, MO_16);
- read_vec_element_i32(s, tcg_op2, rm, pass, MO_16);
-
- switch (fpopcode) {
- case 0x7: /* FRECPS */
- gen_helper_recpsf_f16(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- case 0xf: /* FRSQRTS */
- gen_helper_rsqrtsf_f16(tcg_res, tcg_op1, tcg_op2, fpst);
- break;
- default:
- case 0x0: /* FMAXNM */
- case 0x1: /* FMLA */
- case 0x2: /* FADD */
- case 0x3: /* FMULX */
- case 0x4: /* FCMEQ */
- case 0x6: /* FMAX */
- case 0x8: /* FMINNM */
- case 0x9: /* FMLS */
- case 0xa: /* FSUB */
- case 0xe: /* FMIN */
- case 0x13: /* FMUL */
- case 0x14: /* FCMGE */
- case 0x15: /* FACGE */
- case 0x17: /* FDIV */
- case 0x1a: /* FABD */
- case 0x1c: /* FCMGT */
- case 0x1d: /* FACGT */
- g_assert_not_reached();
- }
-
- write_vec_element_i32(s, tcg_res, rd, pass, MO_16);
- }
+ g_assert_not_reached();
}
clear_vec_high(s, is_q, rd);
@@ -13572,7 +13348,6 @@ static const AArch64DecodeTable data_proc_simd[] = {
{ 0x5f000400, 0xdf800400, disas_simd_scalar_shift_imm },
{ 0x0e400400, 0x9f60c400, disas_simd_three_reg_same_fp16 },
{ 0x0e780800, 0x8f7e0c00, disas_simd_two_reg_misc_fp16 },
- { 0x5e400400, 0xdf60c400, disas_simd_scalar_three_reg_same_fp16 },
{ 0x00000000, 0x00000000, NULL }
};
--
2.34.1
