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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::634; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x634.google.com 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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1726108976834116600 Content-Type: text/plain; charset="utf-8" Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 81 ++++++++++++++++------------------ target/arm/tcg/a64.decode | 8 ++++ 2 files changed, 45 insertions(+), 44 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 740620074a..e00d7fbf48 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -6983,6 +6983,42 @@ TRANS(SRI_v, do_vec_shift_imm, a, gen_gvec_sri) TRANS(SHL_v, do_vec_shift_imm, a, tcg_gen_gvec_shli) TRANS(SLI_v, do_vec_shift_imm, a, gen_gvec_sli); =20 +static bool do_vec_shift_imm_wide(DisasContext *s, arg_qrri_e *a, bool is_= u) +{ + TCGv_i64 tcg_rn, tcg_rd; + int esz =3D a->esz; + int esize; + + if (!fp_access_check(s)) { + return true; + } + + /* + * For the LL variants the store is larger than the load, + * so if rd =3D=3D rn we would overwrite parts of our input. + * So load everything right now and use shifts in the main loop. + */ + tcg_rd =3D tcg_temp_new_i64(); + tcg_rn =3D tcg_temp_new_i64(); + read_vec_element(s, tcg_rn, a->rn, a->q, MO_64); + + esize =3D 8 << esz; + for (int i =3D 0, elements =3D 8 >> esz; i < elements; i++) { + if (is_u) { + tcg_gen_extract_i64(tcg_rd, tcg_rn, i * esize, esize); + } else { + tcg_gen_sextract_i64(tcg_rd, tcg_rn, i * esize, esize); + } + tcg_gen_shli_i64(tcg_rd, tcg_rd, a->imm); + write_vec_element(s, tcg_rd, a->rd, i, esz + 1); + } + clear_vec_high(s, true, a->rd); + return true; +} + +TRANS(SSHLL_v, do_vec_shift_imm_wide, a, false) +TRANS(USHLL_v, do_vec_shift_imm_wide, a, true) + /* Shift a TCGv src by TCGv shift_amount, put result in dst. * Note that it is the caller's responsibility to ensure that the * shift amount is in range (ie 0..31 or 0..63) and provide the ARM @@ -10447,47 +10483,6 @@ static void disas_simd_scalar_two_reg_misc(DisasCo= ntext *s, uint32_t insn) } } =20 -/* USHLL/SHLL - Vector shift left with widening */ -static void handle_vec_simd_wshli(DisasContext *s, bool is_q, bool is_u, - int immh, int immb, int opcode, int rn, i= nt rd) -{ - int size =3D 32 - clz32(immh) - 1; - int immhb =3D immh << 3 | immb; - int shift =3D immhb - (8 << size); - int dsize =3D 64; - int esize =3D 8 << size; - int elements =3D dsize/esize; - TCGv_i64 tcg_rn =3D tcg_temp_new_i64(); - TCGv_i64 tcg_rd =3D tcg_temp_new_i64(); - int i; - - if (size >=3D 3) { - unallocated_encoding(s); - return; - } - - if (!fp_access_check(s)) { - return; - } - - /* For the LL variants the store is larger than the load, - * so if rd =3D=3D rn we would overwrite parts of our input. - * So load everything right now and use shifts in the main loop. - */ - read_vec_element(s, tcg_rn, rn, is_q ? 1 : 0, MO_64); - - for (i =3D 0; i < elements; i++) { - if (is_u) { - tcg_gen_extract_i64(tcg_rd, tcg_rn, i * esize, esize); - } else { - tcg_gen_sextract_i64(tcg_rd, tcg_rn, i * esize, esize); - } - tcg_gen_shli_i64(tcg_rd, tcg_rd, shift); - write_vec_element(s, tcg_rd, rd, i, size + 1); - } - clear_vec_high(s, true, rd); -} - /* SHRN/RSHRN - Shift right with narrowing (and potential rounding) */ static void handle_vec_simd_shrn(DisasContext *s, bool is_q, int immh, int immb, int opcode, int rn, i= nt rd) @@ -10577,9 +10572,6 @@ static void disas_simd_shift_imm(DisasContext *s, u= int32_t insn) handle_vec_simd_sqshrn(s, false, is_q, is_u, is_u, immh, immb, opcode, rn, rd); break; - case 0x14: /* SSHLL / USHLL */ - handle_vec_simd_wshli(s, is_q, is_u, immh, immb, opcode, rn, rd); - break; case 0x1c: /* SCVTF / UCVTF */ handle_simd_shift_intfp_conv(s, false, is_q, is_u, immh, immb, opcode, rn, rd); @@ -10604,6 +10596,7 @@ static void disas_simd_shift_imm(DisasContext *s, u= int32_t insn) case 0x06: /* SRSRA / URSRA (accum + rounding) */ case 0x08: /* SRI */ case 0x0a: /* SHL / SLI */ + case 0x14: /* SSHLL / USHLL */ unallocated_encoding(s); return; } diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index 77b860a3f2..bf67f8a357 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -1269,3 +1269,11 @@ SLI_v 0.10 11110 .... ... 01010 1 ..... ..= ... @q_shli_b SLI_v 0.10 11110 .... ... 01010 1 ..... ..... @q_shli_h SLI_v 0.10 11110 .... ... 01010 1 ..... ..... @q_shli_s SLI_v 0.10 11110 .... ... 01010 1 ..... ..... @q_shli_d + +SSHLL_v 0.00 11110 .... ... 10100 1 ..... ..... @q_shli_b +SSHLL_v 0.00 11110 .... ... 10100 1 ..... ..... @q_shli_h +SSHLL_v 0.00 11110 .... ... 10100 1 ..... ..... @q_shli_s + +USHLL_v 0.10 11110 .... ... 10100 1 ..... ..... @q_shli_b +USHLL_v 0.10 11110 .... ... 10100 1 ..... ..... @q_shli_h +USHLL_v 0.10 11110 .... ... 10100 1 ..... ..... @q_shli_s --=20 2.43.0