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target/arm: Implement SVE2 complex integer multiply-add (indexed)

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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-63-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:03:28 -07:00 committed by Peter Maydell
parent d3949c4c7b
commit 3b787ed808
4 changed files with 64 additions and 0 deletions
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9
target/arm/helper-sve.h
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@ -2715,3 +2715,12 @@ DEF_HELPER_FLAGS_4(sve2_smull_idx_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(sve2_smull_idx_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(sve2_umull_idx_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(sve2_umull_idx_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_cmla_idx_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_cmla_idx_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_sqrdcmlah_idx_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_sqrdcmlah_idx_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)

12
target/arm/sve.decode
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@ -823,6 +823,18 @@ SQDMLSLB_zzxw_d 01000100 11 1 ..... 0011.0 ..... ..... @rrxr_2a esz=3
SQDMLSLT_zzxw_s 01000100 10 1 ..... 0011.1 ..... ..... @rrxr_3a esz=2
SQDMLSLT_zzxw_d 01000100 11 1 ..... 0011.1 ..... ..... @rrxr_2a esz=3
# SVE2 complex integer multiply-add (indexed)
CMLA_zzxz_h 01000100 10 1 index:2 rm:3 0110 rot:2 rn:5 rd:5 \
ra=%reg_movprfx
CMLA_zzxz_s 01000100 11 1 index:1 rm:4 0110 rot:2 rn:5 rd:5 \
ra=%reg_movprfx
# SVE2 complex saturating integer multiply-add (indexed)
SQRDCMLAH_zzxz_h 01000100 10 1 index:2 rm:3 0111 rot:2 rn:5 rd:5 \
ra=%reg_movprfx
SQRDCMLAH_zzxz_s 01000100 11 1 index:1 rm:4 0111 rot:2 rn:5 rd:5 \
ra=%reg_movprfx
# SVE2 multiply-add long (indexed)
SMLALB_zzxw_s 01000100 10 1 ..... 1000.0 ..... ..... @rrxr_3a esz=2
SMLALB_zzxw_d 01000100 11 1 ..... 1000.0 ..... ..... @rrxr_2a esz=3

28
target/arm/sve_helper.c
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@ -1492,8 +1492,36 @@ DO_CMLA_FUNC(sve2_sqrdcmlah_zzzz_h, int16_t, H2, DO_SQRDMLAH_H)
DO_CMLA_FUNC(sve2_sqrdcmlah_zzzz_s, int32_t, H4, DO_SQRDMLAH_S)
DO_CMLA_FUNC(sve2_sqrdcmlah_zzzz_d, int64_t, , DO_SQRDMLAH_D)
#define DO_CMLA_IDX_FUNC(NAME, TYPE, H, OP) \
void HELPER(NAME)(void *vd, void *vn, void *vm, void *va, uint32_t desc) \
{ \
intptr_t i, j, oprsz = simd_oprsz(desc); \
int rot = extract32(desc, SIMD_DATA_SHIFT, 2); \
int idx = extract32(desc, SIMD_DATA_SHIFT + 2, 2) * 2; \
int sel_a = rot & 1, sel_b = sel_a ^ 1; \
bool sub_r = rot == 1 || rot == 2; \
bool sub_i = rot >= 2; \
TYPE *d = vd, *n = vn, *m = vm, *a = va; \
for (i = 0; i < oprsz / sizeof(TYPE); i += 16 / sizeof(TYPE)) { \
TYPE elt2_a = m[H(i + idx + sel_a)]; \
TYPE elt2_b = m[H(i + idx + sel_b)]; \
for (j = 0; j < 16 / sizeof(TYPE); j += 2) { \
TYPE elt1_a = n[H(i + j + sel_a)]; \
d[H2(i + j)] = OP(elt1_a, elt2_a, a[H(i + j)], sub_r); \
d[H2(i + j + 1)] = OP(elt1_a, elt2_b, a[H(i + j + 1)], sub_i); \
} \
} \
}
DO_CMLA_IDX_FUNC(sve2_cmla_idx_h, int16_t, H2, DO_CMLA)
DO_CMLA_IDX_FUNC(sve2_cmla_idx_s, int32_t, H4, DO_CMLA)
DO_CMLA_IDX_FUNC(sve2_sqrdcmlah_idx_h, int16_t, H2, DO_SQRDMLAH_H)
DO_CMLA_IDX_FUNC(sve2_sqrdcmlah_idx_s, int32_t, H4, DO_SQRDMLAH_S)
#undef DO_CMLA
#undef DO_CMLA_FUNC
#undef DO_CMLA_IDX_FUNC
#undef DO_SQRDMLAH_B
#undef DO_SQRDMLAH_H
#undef DO_SQRDMLAH_S

15
target/arm/translate-sve.c
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@ -3976,6 +3976,21 @@ DO_SVE2_RRXR_TB(trans_UMLSLT_zzxw_d, gen_helper_sve2_umlsl_idx_d, true)
#undef DO_SVE2_RRXR_TB
#define DO_SVE2_RRXR_ROT(NAME, FUNC) \
static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \
{ \
return do_sve2_zzzz_data(s, a->rd, a->rn, a->rm, a->ra, \
(a->index << 2) | a->rot, FUNC); \
}
DO_SVE2_RRXR_ROT(CMLA_zzxz_h, gen_helper_sve2_cmla_idx_h)
DO_SVE2_RRXR_ROT(CMLA_zzxz_s, gen_helper_sve2_cmla_idx_s)
DO_SVE2_RRXR_ROT(SQRDCMLAH_zzxz_h, gen_helper_sve2_sqrdcmlah_idx_h)
DO_SVE2_RRXR_ROT(SQRDCMLAH_zzxz_s, gen_helper_sve2_sqrdcmlah_idx_s)
#undef DO_SVE2_RRXR_ROT
/*
*** SVE Floating Point Multiply-Add Indexed Group
*/