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[122.116.72.36]) by smtp.gmail.com with ESMTPSA id js6sm35877977pjb.0.2021.05.05.09.06.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 May 2021 09:06:55 -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=wePUkznvqDAplSu8QKzHNZAMfJiYsvqTtqdR4ZV7jAU=; b=AYWEzld04tyNvjG6tMxM7psqWmSzUortEGUmvYHhhBlDuGbDNcPptVBE5QxGB/1Xns C7WovMYaoUUifFxsTVj5fO74WgpL79H+0WXoTvKgrM3xs1jFMGuafDP3YXxUGQ/qFAkm e54UC/8pvVm6I7uN6i5NLaaSiFfnkiCnz3hwUUwcKg//9KzyTb1h+HcIYArS9p1Ehprm gcOJnQgJ2mp165l3mMyHE/zvqcyOj9FXv01dh+Q3Euj2mbKummZ96OPWaZOojtLl/Tlq 5tPuSD3n+iBJD4GNAYZJFGSgvMIe0YM+iRFkpqAqBmbny+tOXXR6E7QJ7CM46yNmZpqe ruKg== 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=wePUkznvqDAplSu8QKzHNZAMfJiYsvqTtqdR4ZV7jAU=; b=gbm8aSaH/dOWe91t3zls3LnQg4DzvEMDI93RBeicGPMgJJgXVNAuuxQhReHCFis7Vj DsQ2kw8M8bVDABUfGmln3YGcVUmOvsTBVN/YyLCvSKE3Xwp07rGaI6BJzWUTWW8wqwyy +WyuioSTUPgyqJFtCoyMtHOO4kxtjarVjQx6kwryb+Rj0xbZMCe4qftXcqcXJpxbeRrK FyMZVlQ2H13UM+7e+MuAWFK8ARiRd4EkbF5Zd+/9viijZiByopnOZ9vLSqxe2kRQV8DR de4DSk17Zq9zTMcOpWkcm/WleFRKhFsoNmmMUjWJEnyGEU5mW6TnKavrLTMGx7b/w+// 5DLg== X-Gm-Message-State: AOAM530IlBsEi+T0NBRhNBd2lh1IChfo84+GidUFTylo2mvzkl2BzEzq FRMwPfTKpQkOBRvP3q/z8xKIsRHovZqn594C X-Google-Smtp-Source: ABdhPJzYyTXvCYKC7Ifd9bjf8JxliudtfCeknQWWwviT977eb43TdeVq1J1hLggCtbMNPc0+m7cX0Q== X-Received: by 2002:a17:90a:b78d:: with SMTP id m13mr12701606pjr.47.1620230815933; Wed, 05 May 2021 09:06:55 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v6 08/17] target/riscv: add gen_shifti() and gen_shiftiw() helper functions Date: Thu, 6 May 2021 00:06:09 +0800 Message-Id: <20210505160620.15723-9-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210505160620.15723-1-frank.chang@sifive.com> References: <20210505160620.15723-1-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::62e; envelope-from=frank.chang@sifive.com; helo=mail-pl1-x62e.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: Frank Chang , Bin Meng , 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 Reviewed-by: Alistair Francis --- target/riscv/insn_trans/trans_rvi.c.inc | 54 ++----------------------- target/riscv/translate.c | 39 ++++++++++++++++++ 2 files changed, 43 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 bd93f634cf0..6e736c9d0d1 100644 --- a/target/riscv/insn_trans/trans_rvi.c.inc +++ b/target/riscv/insn_trans/trans_rvi.c.inc @@ -268,54 +268,17 @@ 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) @@ -377,16 +340,7 @@ static bool trans_addiw(DisasContext *ctx, arg_addiw *= a) static bool trans_slliw(DisasContext *ctx, arg_slliw *a) { REQUIRE_64BIT(ctx); - 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 5f1a3c694fe..292cf09932d 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -652,6 +652,45 @@ 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; +} + +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; +} + static void gen_ctz(TCGv ret, TCGv arg1) { tcg_gen_ctzi_tl(ret, arg1, TARGET_LONG_BITS); --=20 2.17.1