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[98.147.7.212]) by smtp.gmail.com with ESMTPSA id f23-20020a17090ace1700b002a20c0dcebbsm3643279pju.31.2024.04.06.15.32.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Apr 2024 15:32:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1712442774; x=1713047574; darn=nongnu.org; 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=uK1v+EiguMoYRGbIEG8BvH+kU+PSbAC8gTglH1oJQN4=; b=C4JMonpkumYVHLLy8PcAPHvlDkFbTuu4KReUjuHM2x06qsvQLQReyP2pHiBICV6V/w RSx2WE+ys6JuTFmPSmtlSKkRD163f/lSRLXSlB4XiinVyc0Tmeea3VZhbeGNL8DYNty0 E+dOIQAq1Qx+w3mEa/i1MDPc//ebfMlDCKYrb7MDXmEwzpVYrJCVgozaPWHSKfocRqm0 l98y7VQeTkfsHq9s1h2UeWkho5QfRUl/wL8nrWzqo9om0YyNUuNSA6btyK2jSs2q2V28 EhTkyPcflkatkt6mElHp6rfTxj/6ql4THy3qKJ+rEHkyO6BUkPPZqyZyGvV1mqvFZ49I A1OQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712442774; x=1713047574; 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=uK1v+EiguMoYRGbIEG8BvH+kU+PSbAC8gTglH1oJQN4=; b=KLMZu4XQkqXqWTyyIG3h6AChobt9GqVq35g/ovZNMwl4HU4FRDnz35PtWfQ4w7snGv ZCbUPTf7w6Qk+TU0c+vkSKRF6ZKbNjPDj2irYJcHPTCoqOGI0wiIgGCj7xBmqn84YY4f dfFPjKy5ouZUmyv5h3I+QpvnlDJjHzXyRKAwMyaegXQ5I58J7N5GcRUnhXVXMybc6TkQ 7h0YkG7Y2hinDfqS17CiIXvrf518jYjrsUj9xLuXASJXEHyCm7JL1pRTyfOQbGjOE+kW 0kYBO5Jz5n3OowMCk1iXyoi6lodo/x+hpPzVNuWWr5can6JMxUm6KsfJq/TZaJ603ccd k10w== X-Gm-Message-State: AOJu0Yy7uAKwb8dsO9U8QMKSc25g55Q7msu0fG1nYQkXfmNxSkDodwPY evobkhVFW75t6I+Wnh6MLTQOxjODaYaEriwZhZwsS8qPxFbbSaNKouAz+rV4RToN8UCrEofkK9O 5 X-Google-Smtp-Source: AGHT+IH4KHGnntIWZ+1epoLd26bxOo7aYk4QCzq7PsjdzeFlPnpZnPzhBgELI5mCBj3KEO86RynA+g== X-Received: by 2002:a17:90a:f683:b0:2a4:b04b:d204 with SMTP id cl3-20020a17090af68300b002a4b04bd204mr2799489pjb.7.1712442773854; Sat, 06 Apr 2024 15:32:53 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, Jorgen.Hansen@wdc.com, Jonathan.Cameron@huawei.com, linux-cxl@vger.kernel.org, Pierrick Bouvier Subject: [PATCH 1/9] tcg: Add TCGContext.emit_before_op Date: Sat, 6 Apr 2024 12:32:40 -1000 Message-Id: <20240406223248.502699-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240406223248.502699-1-richard.henderson@linaro.org> References: <20240406223248.502699-1-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::433; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x433.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: 1712442866806100001 Content-Type: text/plain; charset="utf-8" Allow operations to be emitted via normal expanders into the middle of the opcode stream. Reviewed-by: Pierrick Bouvier Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- include/tcg/tcg.h | 6 ++++++ tcg/tcg.c | 14 ++++++++++++-- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index 451f3fec41..05a1912f8a 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -553,6 +553,12 @@ struct TCGContext { QTAILQ_HEAD(, TCGOp) ops, free_ops; QSIMPLEQ_HEAD(, TCGLabel) labels; =20 + /* + * When clear, new ops are added to the tail of @ops. + * When set, new ops are added in front of @emit_before_op. + */ + TCGOp *emit_before_op; + /* Tells which temporary holds a given register. It does not take into account fixed registers */ TCGTemp *reg_to_temp[TCG_TARGET_NB_REGS]; diff --git a/tcg/tcg.c b/tcg/tcg.c index d6670237fb..0c0bb9d169 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1521,6 +1521,7 @@ void tcg_func_start(TCGContext *s) =20 QTAILQ_INIT(&s->ops); QTAILQ_INIT(&s->free_ops); + s->emit_before_op =3D NULL; QSIMPLEQ_INIT(&s->labels); =20 tcg_debug_assert(s->addr_type =3D=3D TCG_TYPE_I32 || @@ -2332,7 +2333,11 @@ static void tcg_gen_callN(TCGHelperInfo *info, TCGTe= mp *ret, TCGTemp **args) op->args[pi++] =3D (uintptr_t)info; tcg_debug_assert(pi =3D=3D total_args); =20 - QTAILQ_INSERT_TAIL(&tcg_ctx->ops, op, link); + if (tcg_ctx->emit_before_op) { + QTAILQ_INSERT_BEFORE(tcg_ctx->emit_before_op, op, link); + } else { + QTAILQ_INSERT_TAIL(&tcg_ctx->ops, op, link); + } =20 tcg_debug_assert(n_extend < ARRAY_SIZE(extend_free)); for (i =3D 0; i < n_extend; ++i) { @@ -3215,7 +3220,12 @@ static TCGOp *tcg_op_alloc(TCGOpcode opc, unsigned n= args) TCGOp *tcg_emit_op(TCGOpcode opc, unsigned nargs) { TCGOp *op =3D tcg_op_alloc(opc, nargs); - QTAILQ_INSERT_TAIL(&tcg_ctx->ops, op, link); + + if (tcg_ctx->emit_before_op) { + QTAILQ_INSERT_BEFORE(tcg_ctx->emit_before_op, op, link); + } else { + QTAILQ_INSERT_TAIL(&tcg_ctx->ops, op, link); + } return op; } =20 --=20 2.34.1