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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id a13sm289150pfr.59.2020.12.15.18.02.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Dec 2020 18:02:10 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v2 03/15] target/riscv: rvb: count bits set Date: Wed, 16 Dec 2020 10:01:28 +0800 Message-Id: <20201216020150.3157-4-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201216020150.3157-1-frank.chang@sifive.com> References: <20201216020150.3157-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1030.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Alistair Francis , Palmer Dabbelt , Kito Cheng Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Frank Chang Signed-off-by: Kito Cheng Signed-off-by: Frank Chang --- target/riscv/insn32-64.decode | 1 + target/riscv/insn32.decode | 1 + target/riscv/insn_trans/trans_rvb.c.inc | 12 ++++++++++++ target/riscv/translate.c | 6 ++++++ 4 files changed, 20 insertions(+) diff --git a/target/riscv/insn32-64.decode b/target/riscv/insn32-64.decode index f4c42720fc7..00c56a93151 100644 --- a/target/riscv/insn32-64.decode +++ b/target/riscv/insn32-64.decode @@ -90,3 +90,4 @@ hsv_d 0110111 ..... ..... 100 00000 1110011 @r2_s # *** RV64B Standard Extension (in addition to RV32B) *** clzw 0110000 00000 ..... 001 ..... 0011011 @r2 ctzw 0110000 00001 ..... 001 ..... 0011011 @r2 +pcntw 0110000 00010 ..... 001 ..... 0011011 @r2 diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 8fe838cf0d0..ac4d8395a45 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -597,3 +597,4 @@ vsetvl 1000000 ..... ..... 111 ..... 1010111 @r # *** RV32B Standard Extension *** clz 011000 000000 ..... 001 ..... 0010011 @r2 ctz 011000 000001 ..... 001 ..... 0010011 @r2 +pcnt 011000 000010 ..... 001 ..... 0010011 @r2 diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index fb6e16143db..f5930f2ad53 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -29,6 +29,12 @@ static bool trans_ctz(DisasContext *ctx, arg_ctz *a) return gen_unary(ctx, a, &gen_ctz); } +static bool trans_pcnt(DisasContext *ctx, arg_pcnt *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_unary(ctx, a, &tcg_gen_ctpop_tl); +} + /* RV64-only instructions */ #ifdef TARGET_RISCV64 @@ -44,4 +50,10 @@ static bool trans_ctzw(DisasContext *ctx, arg_ctzw *a) return gen_unary(ctx, a, &gen_ctzw); } +static bool trans_pcntw(DisasContext *ctx, arg_pcntw *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_unary(ctx, a, &gen_pcntw); +} + #endif diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 398d4502a96..4c9eb86e630 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -726,6 +726,12 @@ static void gen_clzw(TCGv ret, TCGv arg1) tcg_gen_subi_i64(ret, ret, 32); } +static void gen_pcntw(TCGv ret, TCGv arg1) +{ + tcg_gen_ext32u_tl(arg1, arg1); + tcg_gen_ctpop_tl(ret, arg1); +} + #endif static bool gen_arith(DisasContext *ctx, arg_r *a, -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.90_1) id 1kpM8t-0006JW-9d for mharc-qemu-riscv@gnu.org; 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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id a13sm289150pfr.59.2020.12.15.18.02.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Dec 2020 18:02:10 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: Frank Chang , Kito Cheng , Palmer Dabbelt , Alistair Francis , Sagar Karandikar , Bastian Koppelmann Subject: [RFC v2 03/15] target/riscv: rvb: count bits set Date: Wed, 16 Dec 2020 10:01:28 +0800 Message-Id: <20201216020150.3157-4-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201216020150.3157-1-frank.chang@sifive.com> References: <20201216020150.3157-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1034; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1034.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=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-riscv@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Dec 2020 02:02:14 -0000 From: Frank Chang Signed-off-by: Kito Cheng Signed-off-by: Frank Chang --- target/riscv/insn32-64.decode | 1 + target/riscv/insn32.decode | 1 + target/riscv/insn_trans/trans_rvb.c.inc | 12 ++++++++++++ target/riscv/translate.c | 6 ++++++ 4 files changed, 20 insertions(+) diff --git a/target/riscv/insn32-64.decode b/target/riscv/insn32-64.decode index f4c42720fc7..00c56a93151 100644 --- a/target/riscv/insn32-64.decode +++ b/target/riscv/insn32-64.decode @@ -90,3 +90,4 @@ hsv_d 0110111 ..... ..... 100 00000 1110011 @r2_s # *** RV64B Standard Extension (in addition to RV32B) *** clzw 0110000 00000 ..... 001 ..... 0011011 @r2 ctzw 0110000 00001 ..... 001 ..... 0011011 @r2 +pcntw 0110000 00010 ..... 001 ..... 0011011 @r2 diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 8fe838cf0d0..ac4d8395a45 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -597,3 +597,4 @@ vsetvl 1000000 ..... ..... 111 ..... 1010111 @r # *** RV32B Standard Extension *** clz 011000 000000 ..... 001 ..... 0010011 @r2 ctz 011000 000001 ..... 001 ..... 0010011 @r2 +pcnt 011000 000010 ..... 001 ..... 0010011 @r2 diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index fb6e16143db..f5930f2ad53 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -29,6 +29,12 @@ static bool trans_ctz(DisasContext *ctx, arg_ctz *a) return gen_unary(ctx, a, &gen_ctz); } +static bool trans_pcnt(DisasContext *ctx, arg_pcnt *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_unary(ctx, a, &tcg_gen_ctpop_tl); +} + /* RV64-only instructions */ #ifdef TARGET_RISCV64 @@ -44,4 +50,10 @@ static bool trans_ctzw(DisasContext *ctx, arg_ctzw *a) return gen_unary(ctx, a, &gen_ctzw); } +static bool trans_pcntw(DisasContext *ctx, arg_pcntw *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_unary(ctx, a, &gen_pcntw); +} + #endif diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 398d4502a96..4c9eb86e630 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -726,6 +726,12 @@ static void gen_clzw(TCGv ret, TCGv arg1) tcg_gen_subi_i64(ret, ret, 32); } +static void gen_pcntw(TCGv ret, TCGv arg1) +{ + tcg_gen_ext32u_tl(arg1, arg1); + tcg_gen_ctpop_tl(ret, arg1); +} + #endif static bool gen_arith(DisasContext *ctx, arg_r *a, -- 2.17.1