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[97.113.8.179]) by smtp.gmail.com with ESMTPSA id h87-v6sm34707866pfj.78.2018.10.11.13.52.28 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 11 Oct 2018 13:52:28 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Thu, 11 Oct 2018 13:52:00 -0700 Message-Id: <20181011205206.3552-15-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181011205206.3552-1-richard.henderson@linaro.org> References: <20181011205206.3552-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::542 Subject: [Qemu-devel] [PATCH 14/20] target/arm: Use gvec for VSRI, VSLI X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Move shi_op and sli_op expanders from translate-a64.c. Signed-off-by: Richard Henderson --- target/arm/translate.h | 2 + target/arm/translate-a64.c | 152 +---------------------- target/arm/translate.c | 244 ++++++++++++++++++++++++++----------- 3 files changed, 179 insertions(+), 219 deletions(-) diff --git a/target/arm/translate.h b/target/arm/translate.h index 8487b349ef..ef44f0a5e5 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -197,6 +197,8 @@ extern const GVecGen3 bit_op; extern const GVecGen3 bif_op; extern const GVecGen2i ssra_op[4]; extern const GVecGen2i usra_op[4]; +extern const GVecGen2i sri_op[4]; +extern const GVecGen2i sli_op[4]; #define FORWARD_FEATURE(NAME) \ static inline bool aa32_dc_feature_##NAME(DisasContext *dc) \ diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 1a9ae6d5f4..f47c132e6c 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -9392,85 +9392,10 @@ static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn) } } -static void gen_shr8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) -{ - uint64_t mask = dup_const(MO_8, 0xff >> shift); - TCGv_i64 t = tcg_temp_new_i64(); - - tcg_gen_shri_i64(t, a, shift); - tcg_gen_andi_i64(t, t, mask); - tcg_gen_andi_i64(d, d, ~mask); - tcg_gen_or_i64(d, d, t); - tcg_temp_free_i64(t); -} - -static void gen_shr16_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) -{ - uint64_t mask = dup_const(MO_16, 0xffff >> shift); - TCGv_i64 t = tcg_temp_new_i64(); - - tcg_gen_shri_i64(t, a, shift); - tcg_gen_andi_i64(t, t, mask); - tcg_gen_andi_i64(d, d, ~mask); - tcg_gen_or_i64(d, d, t); - tcg_temp_free_i64(t); -} - -static void gen_shr32_ins_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) -{ - tcg_gen_shri_i32(a, a, shift); - tcg_gen_deposit_i32(d, d, a, 0, 32 - shift); -} - -static void gen_shr64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) -{ - tcg_gen_shri_i64(a, a, shift); - tcg_gen_deposit_i64(d, d, a, 0, 64 - shift); -} - -static void gen_shr_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) -{ - uint64_t mask = (2ull << ((8 << vece) - 1)) - 1; - TCGv_vec t = tcg_temp_new_vec_matching(d); - TCGv_vec m = tcg_temp_new_vec_matching(d); - - tcg_gen_dupi_vec(vece, m, mask ^ (mask >> sh)); - tcg_gen_shri_vec(vece, t, a, sh); - tcg_gen_and_vec(vece, d, d, m); - tcg_gen_or_vec(vece, d, d, t); - - tcg_temp_free_vec(t); - tcg_temp_free_vec(m); -} - /* SSHR[RA]/USHR[RA] - Vector shift right (optional rounding/accumulate) */ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u, int immh, int immb, int opcode, int rn, int rd) { - static const GVecGen2i sri_op[4] = { - { .fni8 = gen_shr8_ins_i64, - .fniv = gen_shr_ins_vec, - .load_dest = true, - .opc = INDEX_op_shri_vec, - .vece = MO_8 }, - { .fni8 = gen_shr16_ins_i64, - .fniv = gen_shr_ins_vec, - .load_dest = true, - .opc = INDEX_op_shri_vec, - .vece = MO_16 }, - { .fni4 = gen_shr32_ins_i32, - .fniv = gen_shr_ins_vec, - .load_dest = true, - .opc = INDEX_op_shri_vec, - .vece = MO_32 }, - { .fni8 = gen_shr64_ins_i64, - .fniv = gen_shr_ins_vec, - .prefer_i64 = TCG_TARGET_REG_BITS == 64, - .load_dest = true, - .opc = INDEX_op_shri_vec, - .vece = MO_64 }, - }; - int size = 32 - clz32(immh) - 1; int immhb = immh << 3 | immb; int shift = 2 * (8 << size) - immhb; @@ -9566,85 +9491,10 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u, clear_vec_high(s, is_q, rd); } -static void gen_shl8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) -{ - uint64_t mask = dup_const(MO_8, 0xff << shift); - TCGv_i64 t = tcg_temp_new_i64(); - - tcg_gen_shli_i64(t, a, shift); - tcg_gen_andi_i64(t, t, mask); - tcg_gen_andi_i64(d, d, ~mask); - tcg_gen_or_i64(d, d, t); - tcg_temp_free_i64(t); -} - -static void gen_shl16_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) -{ - uint64_t mask = dup_const(MO_16, 0xffff << shift); - TCGv_i64 t = tcg_temp_new_i64(); - - tcg_gen_shli_i64(t, a, shift); - tcg_gen_andi_i64(t, t, mask); - tcg_gen_andi_i64(d, d, ~mask); - tcg_gen_or_i64(d, d, t); - tcg_temp_free_i64(t); -} - -static void gen_shl32_ins_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) -{ - tcg_gen_deposit_i32(d, d, a, shift, 32 - shift); -} - -static void gen_shl64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) -{ - tcg_gen_deposit_i64(d, d, a, shift, 64 - shift); -} - -static void gen_shl_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) -{ - uint64_t mask = (1ull << sh) - 1; - TCGv_vec t = tcg_temp_new_vec_matching(d); - TCGv_vec m = tcg_temp_new_vec_matching(d); - - tcg_gen_dupi_vec(vece, m, mask); - tcg_gen_shli_vec(vece, t, a, sh); - tcg_gen_and_vec(vece, d, d, m); - tcg_gen_or_vec(vece, d, d, t); - - tcg_temp_free_vec(t); - tcg_temp_free_vec(m); -} - /* SHL/SLI - Vector shift left */ static void handle_vec_simd_shli(DisasContext *s, bool is_q, bool insert, int immh, int immb, int opcode, int rn, int rd) { - static const GVecGen2i shi_op[4] = { - { .fni8 = gen_shl8_ins_i64, - .fniv = gen_shl_ins_vec, - .opc = INDEX_op_shli_vec, - .prefer_i64 = TCG_TARGET_REG_BITS == 64, - .load_dest = true, - .vece = MO_8 }, - { .fni8 = gen_shl16_ins_i64, - .fniv = gen_shl_ins_vec, - .opc = INDEX_op_shli_vec, - .prefer_i64 = TCG_TARGET_REG_BITS == 64, - .load_dest = true, - .vece = MO_16 }, - { .fni4 = gen_shl32_ins_i32, - .fniv = gen_shl_ins_vec, - .opc = INDEX_op_shli_vec, - .prefer_i64 = TCG_TARGET_REG_BITS == 64, - .load_dest = true, - .vece = MO_32 }, - { .fni8 = gen_shl64_ins_i64, - .fniv = gen_shl_ins_vec, - .opc = INDEX_op_shli_vec, - .prefer_i64 = TCG_TARGET_REG_BITS == 64, - .load_dest = true, - .vece = MO_64 }, - }; int size = 32 - clz32(immh) - 1; int immhb = immh << 3 | immb; int shift = immhb - (8 << size); @@ -9664,7 +9514,7 @@ static void handle_vec_simd_shli(DisasContext *s, bool is_q, bool insert, } if (insert) { - gen_gvec_op2i(s, is_q, rd, rn, shift, &shi_op[size]); + gen_gvec_op2i(s, is_q, rd, rn, shift, &sli_op[size]); } else { gen_gvec_fn2i(s, is_q, rd, rn, shift, tcg_gen_gvec_shli, size); } diff --git a/target/arm/translate.c b/target/arm/translate.c index da95851370..104b49543d 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -5878,6 +5878,160 @@ const GVecGen2i usra_op[4] = { .vece = MO_64, }, }; +static void gen_shr8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) +{ + uint64_t mask = dup_const(MO_8, 0xff >> shift); + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_shri_i64(t, a, shift); + tcg_gen_andi_i64(t, t, mask); + tcg_gen_andi_i64(d, d, ~mask); + tcg_gen_or_i64(d, d, t); + tcg_temp_free_i64(t); +} + +static void gen_shr16_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) +{ + uint64_t mask = dup_const(MO_16, 0xffff >> shift); + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_shri_i64(t, a, shift); + tcg_gen_andi_i64(t, t, mask); + tcg_gen_andi_i64(d, d, ~mask); + tcg_gen_or_i64(d, d, t); + tcg_temp_free_i64(t); +} + +static void gen_shr32_ins_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) +{ + tcg_gen_shri_i32(a, a, shift); + tcg_gen_deposit_i32(d, d, a, 0, 32 - shift); +} + +static void gen_shr64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) +{ + tcg_gen_shri_i64(a, a, shift); + tcg_gen_deposit_i64(d, d, a, 0, 64 - shift); +} + +static void gen_shr_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) +{ + if (sh == 0) { + tcg_gen_mov_vec(d, a); + } else { + TCGv_vec t = tcg_temp_new_vec_matching(d); + TCGv_vec m = tcg_temp_new_vec_matching(d); + + tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK((8 << vece) - sh, sh)); + tcg_gen_shri_vec(vece, t, a, sh); + tcg_gen_and_vec(vece, d, d, m); + tcg_gen_or_vec(vece, d, d, t); + + tcg_temp_free_vec(t); + tcg_temp_free_vec(m); + } +} + +const GVecGen2i sri_op[4] = { + { .fni8 = gen_shr8_ins_i64, + .fniv = gen_shr_ins_vec, + .load_dest = true, + .opc = INDEX_op_shri_vec, + .vece = MO_8 }, + { .fni8 = gen_shr16_ins_i64, + .fniv = gen_shr_ins_vec, + .load_dest = true, + .opc = INDEX_op_shri_vec, + .vece = MO_16 }, + { .fni4 = gen_shr32_ins_i32, + .fniv = gen_shr_ins_vec, + .load_dest = true, + .opc = INDEX_op_shri_vec, + .vece = MO_32 }, + { .fni8 = gen_shr64_ins_i64, + .fniv = gen_shr_ins_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .load_dest = true, + .opc = INDEX_op_shri_vec, + .vece = MO_64 }, +}; + +static void gen_shl8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) +{ + uint64_t mask = dup_const(MO_8, 0xff << shift); + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_shli_i64(t, a, shift); + tcg_gen_andi_i64(t, t, mask); + tcg_gen_andi_i64(d, d, ~mask); + tcg_gen_or_i64(d, d, t); + tcg_temp_free_i64(t); +} + +static void gen_shl16_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) +{ + uint64_t mask = dup_const(MO_16, 0xffff << shift); + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_shli_i64(t, a, shift); + tcg_gen_andi_i64(t, t, mask); + tcg_gen_andi_i64(d, d, ~mask); + tcg_gen_or_i64(d, d, t); + tcg_temp_free_i64(t); +} + +static void gen_shl32_ins_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) +{ + tcg_gen_deposit_i32(d, d, a, shift, 32 - shift); +} + +static void gen_shl64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) +{ + tcg_gen_deposit_i64(d, d, a, shift, 64 - shift); +} + +static void gen_shl_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) +{ + if (sh == 0) { + tcg_gen_mov_vec(d, a); + } else { + TCGv_vec t = tcg_temp_new_vec_matching(d); + TCGv_vec m = tcg_temp_new_vec_matching(d); + + tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK(0, sh)); + tcg_gen_shli_vec(vece, t, a, sh); + tcg_gen_and_vec(vece, d, d, m); + tcg_gen_or_vec(vece, d, d, t); + + tcg_temp_free_vec(t); + tcg_temp_free_vec(m); + } +} + +const GVecGen2i sli_op[4] = { + { .fni8 = gen_shl8_ins_i64, + .fniv = gen_shl_ins_vec, + .load_dest = true, + .opc = INDEX_op_shli_vec, + .vece = MO_8 }, + { .fni8 = gen_shl16_ins_i64, + .fniv = gen_shl_ins_vec, + .load_dest = true, + .opc = INDEX_op_shli_vec, + .vece = MO_16 }, + { .fni4 = gen_shl32_ins_i32, + .fniv = gen_shl_ins_vec, + .load_dest = true, + .opc = INDEX_op_shli_vec, + .vece = MO_32 }, + { .fni8 = gen_shl64_ins_i64, + .fniv = gen_shl_ins_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .load_dest = true, + .opc = INDEX_op_shli_vec, + .vece = MO_64 }, +}; + /* Translate a NEON data processing instruction. Return nonzero if the instruction is invalid. We process data in a mixture of 32-bit and 64-bit chunks. @@ -5895,7 +6049,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) int pairwise; int u; int vec_size; - uint32_t imm, mask; + uint32_t imm; TCGv_i32 tmp, tmp2, tmp3, tmp4, tmp5; TCGv_ptr ptr1, ptr2, ptr3; TCGv_i64 tmp64; @@ -6534,8 +6688,27 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) } return 0; + case 4: /* VSRI */ + if (!u) { + return 1; + } + /* Right shift comes here negative. */ + shift = -shift; + /* Shift out of range leaves destination unchanged. */ + if (shift < 8 << size) { + tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size, + shift, &sri_op[size]); + } + return 0; + case 5: /* VSHL, VSLI */ - if (!u) { /* VSHL */ + if (u) { /* VSLI */ + /* Shift out of range leaves destination unchanged. */ + if (shift < 8 << size) { + tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, + vec_size, shift, &sli_op[size]); + } + } else { /* VSHL */ /* Shifts larger than the element size are * architecturally valid and results in zero. */ @@ -6545,9 +6718,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) tcg_gen_gvec_shli(size, rd_ofs, rm_ofs, shift, vec_size, vec_size); } - return 0; } - break; + return 0; } if (size == 3) { @@ -6573,10 +6745,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) else gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1); break; - case 4: /* VSRI */ - case 5: /* VSHL, VSLI */ - gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); - break; case 6: /* VQSHLU */ gen_helper_neon_qshlu_s64(cpu_V0, cpu_env, cpu_V0, cpu_V1); @@ -6597,21 +6765,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) /* Accumulate. */ neon_load_reg64(cpu_V1, rd + pass); tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1); - } else if (op == 4 || (op == 5 && u)) { - /* Insert */ - neon_load_reg64(cpu_V1, rd + pass); - uint64_t mask; - if (shift < -63 || shift > 63) { - mask = 0; - } else { - if (op == 4) { - mask = 0xffffffffffffffffull >> -shift; - } else { - mask = 0xffffffffffffffffull << shift; - } - } - tcg_gen_andi_i64(cpu_V1, cpu_V1, ~mask); - tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); } neon_store_reg64(cpu_V0, rd + pass); } else { /* size < 3 */ @@ -6624,15 +6777,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) case 3: /* VRSRA */ GEN_NEON_INTEGER_OP(rshl); break; - case 4: /* VSRI */ - case 5: /* VSHL, VSLI */ - switch (size) { - case 0: gen_helper_neon_shl_u8(tmp, tmp, tmp2); break; - case 1: gen_helper_neon_shl_u16(tmp, tmp, tmp2); break; - case 2: gen_helper_neon_shl_u32(tmp, tmp, tmp2); break; - default: abort(); - } - break; case 6: /* VQSHLU */ switch (size) { case 0: @@ -6664,42 +6808,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) tmp2 = neon_load_reg(rd, pass); gen_neon_add(size, tmp, tmp2); tcg_temp_free_i32(tmp2); - } else if (op == 4 || (op == 5 && u)) { - /* Insert */ - switch (size) { - case 0: - if (op == 4) - mask = 0xff >> -shift; - else - mask = (uint8_t)(0xff << shift); - mask |= mask << 8; - mask |= mask << 16; - break; - case 1: - if (op == 4) - mask = 0xffff >> -shift; - else - mask = (uint16_t)(0xffff << shift); - mask |= mask << 16; - break; - case 2: - if (shift < -31 || shift > 31) { - mask = 0; - } else { - if (op == 4) - mask = 0xffffffffu >> -shift; - else - mask = 0xffffffffu << shift; - } - break; - default: - abort(); - } - tmp2 = neon_load_reg(rd, pass); - tcg_gen_andi_i32(tmp, tmp, mask); - tcg_gen_andi_i32(tmp2, tmp2, ~mask); - tcg_gen_or_i32(tmp, tmp, tmp2); - tcg_temp_free_i32(tmp2); } neon_store_reg(rd, pass, tmp); }