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target/arm: Implement SVE mixed sign dot product 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-68-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:03:33 -07:00 committed by Peter Maydell
parent 2867039a9f
commit 6a98cb2ae0
4 changed files with 22 additions and 0 deletions
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1
target/arm/helper.h
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@ -612,6 +612,7 @@ DEF_HELPER_FLAGS_5(gvec_sdot_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_udot_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_sdot_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_udot_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_usdot_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_sdot_idx_b, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)

4
target/arm/sve.decode
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@ -1530,6 +1530,10 @@ UMLSLT_zzzw 01000100 .. 0 ..... 010 111 ..... ..... @rda_rn_rm
CMLA_zzzz 01000100 esz:2 0 rm:5 0010 rot:2 rn:5 rd:5 ra=%reg_movprfx
SQRDCMLAH_zzzz 01000100 esz:2 0 rm:5 0011 rot:2 rn:5 rd:5 ra=%reg_movprfx
## SVE mixed sign dot product
USDOT_zzzz 01000100 .. 0 ..... 011 110 ..... ..... @rda_rn_rm
### SVE2 floating point matrix multiply accumulate
FMMLA 01100100 .. 1 ..... 111001 ..... ..... @rda_rn_rm

16
target/arm/translate-sve.c
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@ -8132,3 +8132,19 @@ static bool trans_SQRDCMLAH_zzzz(DisasContext *s, arg_SQRDCMLAH_zzzz *a)
}
return true;
}
static bool trans_USDOT_zzzz(DisasContext *s, arg_USDOT_zzzz *a)
{
if (a->esz != 2 || !dc_isar_feature(aa64_sve_i8mm, s)) {
return false;
}
if (sve_access_check(s)) {
unsigned vsz = vec_full_reg_size(s);
tcg_gen_gvec_4_ool(vec_full_reg_offset(s, a->rd),
vec_full_reg_offset(s, a->rn),
vec_full_reg_offset(s, a->rm),
vec_full_reg_offset(s, a->ra),
vsz, vsz, 0, gen_helper_gvec_usdot_b);
}
return true;
}

1
target/arm/vec_helper.c
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@ -566,6 +566,7 @@ void HELPER(NAME)(void *vd, void *vn, void *vm, void *va, uint32_t desc) \
DO_DOT(gvec_sdot_b, int32_t, int8_t, int8_t)
DO_DOT(gvec_udot_b, uint32_t, uint8_t, uint8_t)
DO_DOT(gvec_usdot_b, uint32_t, uint8_t, int8_t)
DO_DOT(gvec_sdot_h, int64_t, int16_t, int16_t)
DO_DOT(gvec_udot_h, uint64_t, uint16_t, uint16_t)