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target/arm: Implement SVE2 saturating multiply (indexed)

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-58-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:03:23 -07:00 • committed by Peter Maydell
parent c5c455d783
commit b95f5eebf6
4 changed files with 51 additions and 0 deletions
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20
target/arm/sve_helper.c
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@ -1565,6 +1565,26 @@ DO_ZZXW(sve2_sqdmlsl_idx_d, int64_t, int32_t, , H1_4, DO_SQDMLSL_D)
#undef DO_ZZXW
#define DO_ZZX(NAME, TYPEW, TYPEN, HW, HN, OP) \
void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \
{ \
intptr_t i, j, oprsz = simd_oprsz(desc); \
intptr_t sel = extract32(desc, SIMD_DATA_SHIFT, 1) * sizeof(TYPEN); \
intptr_t idx = extract32(desc, SIMD_DATA_SHIFT + 1, 3) * sizeof(TYPEN); \
for (i = 0; i < oprsz; i += 16) { \
TYPEW mm = *(TYPEN *)(vm + HN(i + idx)); \
for (j = 0; j < 16; j += sizeof(TYPEW)) { \
TYPEW nn = *(TYPEN *)(vn + HN(i + j + sel)); \
*(TYPEW *)(vd + HW(i + j)) = OP(nn, mm); \
} \
} \
}
DO_ZZX(sve2_sqdmull_idx_s, int32_t, int16_t, H1_4, H1_2, do_sqdmull_s)
DO_ZZX(sve2_sqdmull_idx_d, int64_t, int32_t, , H1_4, do_sqdmull_d)
#undef DO_ZZX
#define DO_BITPERM(NAME, TYPE, OP) \
void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \
{ \