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target/arm: Implement SVE2 bitwise shift left long

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:02:41 -07:00 • committed by Peter Maydell
parent e3a5613183
commit 4269fef1f9
4 changed files with 197 additions and 0 deletions
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22
target/arm/sve_helper.c
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@ -1226,6 +1226,28 @@ DO_ZZZ_WTB(sve2_usubw_d, uint64_t, uint32_t, , H1_4, DO_SUB)
#undef DO_ZZZ_WTB
#define DO_ZZI_SHLL(NAME, TYPEW, TYPEN, HW, HN) \
void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
{ \
intptr_t i, opr_sz = simd_oprsz(desc); \
intptr_t sel = (simd_data(desc) & 1) * sizeof(TYPEN); \
int shift = simd_data(desc) >> 1; \
for (i = 0; i < opr_sz; i += sizeof(TYPEW)) { \
TYPEW nn = *(TYPEN *)(vn + HN(i + sel)); \
*(TYPEW *)(vd + HW(i)) = nn << shift; \
} \
}
DO_ZZI_SHLL(sve2_sshll_h, int16_t, int8_t, H1_2, H1)
DO_ZZI_SHLL(sve2_sshll_s, int32_t, int16_t, H1_4, H1_2)
DO_ZZI_SHLL(sve2_sshll_d, int64_t, int32_t, , H1_4)
DO_ZZI_SHLL(sve2_ushll_h, uint16_t, uint8_t, H1_2, H1)
DO_ZZI_SHLL(sve2_ushll_s, uint32_t, uint16_t, H1_4, H1_2)
DO_ZZI_SHLL(sve2_ushll_d, uint64_t, uint32_t, , H1_4)
#undef DO_ZZI_SHLL
/* Two-operand reduction expander, controlled by a predicate.
* The difference between TYPERED and TYPERET has to do with
* sign-extension. E.g. for SMAX, TYPERED must be signed,