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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- v2: Fix sel indexing and argument order (laurent desnogues). --- target/arm/helper-sve.h | 3 +++ target/arm/sve.decode | 6 ++++++ target/arm/sve_helper.c | 34 ++++++++++++++++++++++++++++++++++ target/arm/translate-sve.c | 23 +++++++++++++++++++++++ 4 files changed, 66 insertions(+) diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h index d5dfd4edea..a806973221 100644 --- a/target/arm/helper-sve.h +++ b/target/arm/helper-sve.h @@ -2416,3 +2416,6 @@ DEF_HELPER_FLAGS_5(sve2_uabal_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_5(sve2_uabal_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32) + +DEF_HELPER_FLAGS_5(sve2_adcl_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr,= i32) +DEF_HELPER_FLAGS_5(sve2_adcl_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr,= i32) diff --git a/target/arm/sve.decode b/target/arm/sve.decode index 6cf09847a0..f4f0c2ade6 100644 --- a/target/arm/sve.decode +++ b/target/arm/sve.decode @@ -1247,3 +1247,9 @@ SABALB 01000101 .. 0 ..... 1100 00 ..... ...= .. @rda_rn_rm SABALT 01000101 .. 0 ..... 1100 01 ..... ..... @rda_rn_rm UABALB 01000101 .. 0 ..... 1100 10 ..... ..... @rda_rn_rm UABALT 01000101 .. 0 ..... 1100 11 ..... ..... @rda_rn_rm + +## SVE2 integer add/subtract long with carry + +# ADC and SBC decoded via size in helper dispatch. +ADCLB 01000101 .. 0 ..... 11010 0 ..... ..... @rda_rn_rm +ADCLT 01000101 .. 0 ..... 11010 1 ..... ..... @rda_rn_rm diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index cc8450c44e..a7ba9e71d5 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -1264,6 +1264,40 @@ DO_ZZZW_ACC(sve2_uabal_d, uint64_t, uint32_t, , = H1_4, DO_ABD) =20 #undef DO_ZZZW_ACC =20 +void HELPER(sve2_adcl_s)(void *vd, void *vn, void *vm, void *va, uint32_t = desc) +{ + intptr_t i, opr_sz =3D simd_oprsz(desc); + int sel =3D H4(extract32(desc, SIMD_DATA_SHIFT, 1)); + uint32_t inv =3D -extract32(desc, SIMD_DATA_SHIFT + 1, 1); + uint32_t *a =3D va, *n =3D vn; + uint64_t *d =3D vd, *m =3D vm; + + for (i =3D 0; i < opr_sz / 8; ++i) { + uint32_t e1 =3D a[2 * i + H4(0)]; + uint32_t e2 =3D n[2 * i + sel] ^ inv; + uint64_t c =3D extract64(m[i], 32, 1); + /* Compute and store the entire 33-bit result at once. */ + d[i] =3D c + e1 + e2; + } +} + +void HELPER(sve2_adcl_d)(void *vd, void *vn, void *vm, void *va, uint32_t = desc) +{ + intptr_t i, opr_sz =3D simd_oprsz(desc); + int sel =3D extract32(desc, SIMD_DATA_SHIFT, 1); + uint64_t inv =3D -(uint64_t)extract32(desc, SIMD_DATA_SHIFT + 1, 1); + uint64_t *d =3D vd, *a =3D va, *n =3D vn, *m =3D vm; + + for (i =3D 0; i < opr_sz / 8; i +=3D 2) { + Int128 e1 =3D int128_make64(a[i]); + Int128 e2 =3D int128_make64(n[i + sel] ^ inv); + Int128 c =3D int128_make64(m[i + 1] & 1); + Int128 r =3D int128_add(int128_add(e1, e2), c); + d[i + 0] =3D int128_getlo(r); + d[i + 1] =3D int128_gethi(r); + } +} + #define DO_BITPERM(NAME, TYPE, OP) \ void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \ { \ diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index 7b3720e8ef..4e23b6cedd 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -6381,3 +6381,26 @@ static bool trans_UABALT(DisasContext *s, arg_rrrr_e= sz *a) { return do_abal(s, a, true, true); } + +static bool do_adcl(DisasContext *s, arg_rrrr_esz *a, bool sel) +{ + static gen_helper_gvec_4 * const fns[2] =3D { + gen_helper_sve2_adcl_s, + gen_helper_sve2_adcl_d, + }; + /* + * Note that in this case the ESZ field encodes both size and sign. + * Split out 'subtract' into bit 1 of the data field for the helper. + */ + return do_sve2_zzzz_ool(s, a, fns[a->esz & 1], (a->esz & 2) | sel); +} + +static bool trans_ADCLB(DisasContext *s, arg_rrrr_esz *a) +{ + return do_adcl(s, a, false); +} + +static bool trans_ADCLT(DisasContext *s, arg_rrrr_esz *a) +{ + return do_adcl(s, a, true); +} --=20 2.25.1