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([2602:47:d48c:8101:9d81:5b04:51d7:acae]) by smtp.gmail.com with ESMTPSA id bj5-20020a17090b088500b00212e5068e17sm1945119pjb.40.2023.01.06.23.51.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Jan 2023 23:51:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ZuURL0Ztzr8btVR749avb0V6dgHEYwxAMwyivvvug7o=; b=BR/vDp1siPmEjxAOkeQDS6NMzwh3PuOTTJoYv21gI6J0ET1tOMsb+55+AqC0VM0mip uU7MPSKT4rDrlT0XXidZTbNPwUazh4+Pf2ZeC2UWgMvMc7wzx6FwRMvAHPvH86RVq+oR XfEFIkCxfeMBGa4KHGJRkM6MxkK3sfm8KMXyBdbcr4bTG+f/whAhQTdmgps2krcxEyct 93P7IhqrFZUVBltWtka89INA1LqTUdfmhphHd9gm9+KWULG0AIuFJjKzEuivCz/oDdsw ZznzZngcAwv3hMmdT2yn27aDJJgAeUwvWfqsmRhwobJ8KddHQBpZVcIqjQpvvb795biK KkGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZuURL0Ztzr8btVR749avb0V6dgHEYwxAMwyivvvug7o=; b=pmZk887bqlS+FprtB6/L4QsrxtQ092kBYqvQ0Yqv85lglKuT1lrNH8wbLDJsifEzx0 gh8Ud13R6REXnnSQ64NM6Stao/uAoewT9tS4RtyDdFZzsqpNh8S8Xiy7WvIXf8+/IIlc aZxadeedCtrrXxR2Ako/IIu8GAF2a1iISVIZPFQeyLYoFC5zINMDlVr/BfcxHhekzzqv Gxl6D29OkcV7dmbxNa5FU6aVfBhDCwlzpgI5fZZ7Nfm74whsTDmK1PJgHNXbH//A19y2 vvzewC3gp6Ht/Fqs+qHulE0vlCaQmxQ+WYc7N/1JsH6kIoqxiixKznmAk/Em46Ctcx40 1LeQ== X-Gm-Message-State: AFqh2kqwBhHBwnSjOtJ8hh4Y/X/+jmlI6pIeXE4DQkrTRQNwI88Cr494 CBGp6jckn22RYjqlWdP2Jp/mcV0jWbDeAmnk X-Google-Smtp-Source: AMrXdXvA/Cbi3bnLJvrLjLnv/X18cFZ482kI6hyIFYpG2M2ZWLCuC0GUPbr6qfqFHgzkzCcsPYmMJQ== X-Received: by 2002:a17:90b:3797:b0:226:3981:1ae3 with SMTP id mz23-20020a17090b379700b0022639811ae3mr30561499pjb.28.1673077904998; Fri, 06 Jan 2023 23:51:44 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Ilya Leoshkevich Subject: [PULL 27/27] tcg/s390x: Avoid the constant pool in tcg_out_movi Date: Fri, 6 Jan 2023 23:51:18 -0800 Message-Id: <20230107075118.1814503-28-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230107075118.1814503-1-richard.henderson@linaro.org> References: <20230107075118.1814503-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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::102c; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102c.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-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: 1673078245165100003 Content-Type: text/plain; charset="utf-8" Load constants in no more than two insns, which turns out to be faster than using the constant pool. Suggested-by: Ilya Leoshkevich Reviewed-by: Ilya Leoshkevich Signed-off-by: Richard Henderson --- tcg/s390x/tcg-target.c.inc | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index b72c43e4aa..2b38fd991d 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -877,6 +877,9 @@ static bool tcg_out_mov(TCGContext *s, TCGType type, TC= GReg dst, TCGReg src) static const S390Opcode li_insns[4] =3D { RI_LLILL, RI_LLILH, RI_LLIHL, RI_LLIHH }; +static const S390Opcode oi_insns[4] =3D { + RI_OILL, RI_OILH, RI_OIHL, RI_OIHH +}; static const S390Opcode lif_insns[2] =3D { RIL_LLILF, RIL_LLIHF, }; @@ -928,9 +931,20 @@ static void tcg_out_movi(TCGContext *s, TCGType type, return; } =20 - /* Otherwise, stuff it in the constant pool. */ - tcg_out_insn(s, RIL, LGRL, ret, 0); - new_pool_label(s, sval, R_390_PC32DBL, s->code_ptr - 2, 2); + /* Otherwise, load it by parts. */ + i =3D is_const_p16((uint32_t)uval); + if (i >=3D 0) { + tcg_out_insn_RI(s, li_insns[i], ret, uval >> (i * 16)); + } else { + tcg_out_insn(s, RIL, LLILF, ret, uval); + } + uval >>=3D 32; + i =3D is_const_p16(uval); + if (i >=3D 0) { + tcg_out_insn_RI(s, oi_insns[i + 2], ret, uval >> (i * 16)); + } else { + tcg_out_insn(s, RIL, OIHF, ret, uval); + } } =20 /* Emit a load/store type instruction. Inputs are: @@ -1160,9 +1174,6 @@ static void tgen_andi(TCGContext *s, TCGType type, TC= GReg dest, uint64_t val) =20 static void tgen_ori(TCGContext *s, TCGReg dest, uint64_t val) { - static const S390Opcode oi_insns[4] =3D { - RI_OILL, RI_OILH, RI_OIHL, RI_OIHH - }; static const S390Opcode oif_insns[2] =3D { RIL_OILF, RIL_OIHF }; --=20 2.34.1