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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id jx20sm551465pjb.41.2021.04.20.21.14.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Apr 2021 21:14:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=42KWzCC8CFFh/Kemo2PX17aSJD67rAM/tWgccuVGlL8=; b=NZgRQmLHAHFSAZ4hWLlBLHkTf+tV/QWHObFojtJfv+kOvawGv2rZFJvBwcDjqWT6Ab 6sJq//3D4w7bevcWtv+Q4T/1qUeZMbeH7cHQhz4M9DmWSVhEublEn67ZKfKALHiK5GG2 HvCRcqCYBSNbW2jYSOyR6qfIasVWZu7m1EUfIGiMzFVEZ1mCQ9SdBk9acC4ONIAlwPbi VVzmYE2iUCac1Us7UfjPSXkfq3W+1UL1Xe0ps+rnSQzbCUV/o0a2t9RwRPafhfA694+6 htZ9z+tmGRj/fxb7PrNj/GJOpLVIqEcQqCOuATCWCMOGfBkJFTfchEsCmpJs6koHDGta T8/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=42KWzCC8CFFh/Kemo2PX17aSJD67rAM/tWgccuVGlL8=; b=SJYIB7tiJQQE+aiP/OkL+JRXzLJEeDYILXnsCqX38oz2Kg3G8iFBZUUUfqVMLjKTlq 0MjwChxIrtWzT2R0mg82trce6H+EgarSn1Nft3C5TzOHMBFtiVBRdDJ3cDygR6A06Oav 2+jVaCUL+07qzY5U/FCYtnUoH9BSCvsz9ast46gTRkrzLLsAe+mJ+6gVZKg5pR35L3cT 0ajOnhC0u+slfThKffD7Z1x1w1SKxKoaS7AdbloEOe3Zy9MRCHWRb4AfS1ajDM0XkEb9 WGdY6mssYlPVOxg8Bx6scWPKLCWqO0rf/dnvBQSDGYFjsG7NfFrVh/zD+U9UFANXfu3c gKkA== X-Gm-Message-State: AOAM533IZuJUH7wOo43oSpxFtZ1TxmFc2QkBaXdtRNSZmKrZV1dppMIn IFXud30byXynRC1HU1/2ODpq2s2W8ymebNc6 X-Google-Smtp-Source: ABdhPJyEvVt2gvK4aLpuODr5rKnDGcQxTIA77eSD5aGalfIAAFqRlbfE/2Zr3I54SuGxCvaBf7hlDw== X-Received: by 2002:a17:90a:b794:: with SMTP id m20mr8564361pjr.152.1618978472128; Tue, 20 Apr 2021 21:14:32 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v5 08/17] target/riscv: add gen_shifti() and gen_shiftiw() helper functions Date: Wed, 21 Apr 2021 12:13:50 +0800 Message-Id: <20210421041400.22243-9-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210421041400.22243-1-frank.chang@sifive.com> References: <20210421041400.22243-1-frank.chang@sifive.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::52c; envelope-from=frank.chang@sifive.com; helo=mail-pg1-x52c.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 , Richard Henderson , Alistair Francis , Paolo Bonzini , Palmer Dabbelt Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Frank Chang Add gen_shifti() and gen_shiftiw() helper functions to reuse the same interfaces for immediate shift instructions. Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/insn_trans/trans_rvi.c.inc | 54 ++----------------------- target/riscv/translate.c | 43 ++++++++++++++++++++ 2 files changed, 47 insertions(+), 50 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvi.c.inc b/target/riscv/insn_tr= ans/trans_rvi.c.inc index d04ca0394cf..7b894201840 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -261,54 +261,17 @@ static bool trans_andi(DisasContext *ctx, arg_andi *a) } static bool trans_slli(DisasContext *ctx, arg_slli *a) { - if (a->shamt >=3D TARGET_LONG_BITS) { - return false; - } - - if (a->rd !=3D 0) { - TCGv t =3D tcg_temp_new(); - gen_get_gpr(t, a->rs1); - - tcg_gen_shli_tl(t, t, a->shamt); - - gen_set_gpr(a->rd, t); - tcg_temp_free(t); - } /* NOP otherwise */ - return true; + return gen_shifti(ctx, a, tcg_gen_shl_tl); } =20 static bool trans_srli(DisasContext *ctx, arg_srli *a) { - if (a->shamt >=3D TARGET_LONG_BITS) { - return false; - } - - if (a->rd !=3D 0) { - TCGv t =3D tcg_temp_new(); - gen_get_gpr(t, a->rs1); - - tcg_gen_shri_tl(t, t, a->shamt); - gen_set_gpr(a->rd, t); - tcg_temp_free(t); - } /* NOP otherwise */ - return true; + return gen_shifti(ctx, a, tcg_gen_shr_tl); } =20 static bool trans_srai(DisasContext *ctx, arg_srai *a) { - if (a->shamt >=3D TARGET_LONG_BITS) { - return false; - } - - if (a->rd !=3D 0) { - TCGv t =3D tcg_temp_new(); - gen_get_gpr(t, a->rs1); - - tcg_gen_sari_tl(t, t, a->shamt); - gen_set_gpr(a->rd, t); - tcg_temp_free(t); - } /* NOP otherwise */ - return true; + return gen_shifti(ctx, a, tcg_gen_sar_tl); } =20 static bool trans_add(DisasContext *ctx, arg_add *a) @@ -369,16 +332,7 @@ static bool trans_addiw(DisasContext *ctx, arg_addiw *= a) =20 static bool trans_slliw(DisasContext *ctx, arg_slliw *a) { - TCGv source1; - source1 =3D tcg_temp_new(); - gen_get_gpr(source1, a->rs1); - - tcg_gen_shli_tl(source1, source1, a->shamt); - tcg_gen_ext32s_tl(source1, source1); - gen_set_gpr(a->rd, source1); - - tcg_temp_free(source1); - return true; + return gen_shiftiw(ctx, a, tcg_gen_shl_tl); } =20 static bool trans_srliw(DisasContext *ctx, arg_srliw *a) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 4333207aeff..f8a2a137f27 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -644,6 +644,49 @@ static uint32_t opcode_at(DisasContextBase *dcbase, ta= rget_ulong pc) return cpu_ldl_code(env, pc); } =20 +static bool gen_shifti(DisasContext *ctx, arg_shift *a, + void(*func)(TCGv, TCGv, TCGv)) +{ + if (a->shamt >=3D TARGET_LONG_BITS) { + return false; + } + + TCGv source1 =3D tcg_temp_new(); + TCGv source2 =3D tcg_temp_new(); + + gen_get_gpr(source1, a->rs1); + + tcg_gen_movi_tl(source2, a->shamt); + (*func)(source1, source1, source2); + + gen_set_gpr(a->rd, source1); + tcg_temp_free(source1); + tcg_temp_free(source2); + return true; +} + +#ifdef TARGET_RISCV64 + +static bool gen_shiftiw(DisasContext *ctx, arg_shift *a, + void(*func)(TCGv, TCGv, TCGv)) +{ + TCGv source1 =3D tcg_temp_new(); + TCGv source2 =3D tcg_temp_new(); + + gen_get_gpr(source1, a->rs1); + tcg_gen_movi_tl(source2, a->shamt); + + (*func)(source1, source1, source2); + tcg_gen_ext32s_tl(source1, source1); + + gen_set_gpr(a->rd, source1); + tcg_temp_free(source1); + tcg_temp_free(source2); + return true; +} + +#endif + static void gen_ctz(TCGv ret, TCGv arg1) { tcg_gen_ctzi_tl(ret, arg1, TARGET_LONG_BITS); --=20 2.17.1