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d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=gsjy1JiJ2x2+FvZgfCJN+MKtpHaomLmEry8fdDvNSE4=; b=Kdw19uhjcZdY+6v0TeOpR03MMKGwK3WDtgJjJqb8Le6o9dG7RwfAbIkOOmqzW4xdqc O+qKhHjDwueLHAjaSFCymjABpUSmnrsMVUl0TyCgwsab8Q2rDeg60Gfix6995HNq6Goz WBFu2qdUnJsSjenGH/8Nb9EC/VdMBeVXO53i+agpBAT+YrkPr9q2zafNYJX6Hl/Xetem eVvSjfTUzzSFF5zhFpLokq3gC37cfWr/ovb9KSf29Dp3r5TpHTwspJBI5YT4CZjmbFAa cLgaMvwksrQ0+AB96JjqLk3bSvhT7d0sFCfWLSUkkrtkgQTGAV52KsCCpX5dgqFu4gE6 gd2Q== X-Gm-Message-State: AOAM531u9OiF/88G4v02agt/ZpTEA8zEKHu8sSm68ViGV0aG+5XxSChW EcQMKEWJrRvKRxWl1fz8TOjHXTfUGVqgKg== X-Google-Smtp-Source: ABdhPJySr7lpY/44/n7IAPv9qtfZkCTHTN9xPV3GxpGW4Hde3HhSUEK4bXidZY7Wa9o6DJPUI2JusA== X-Received: by 2002:a63:c2:: with SMTP id 185mr16004604pga.18.1624126510999; Sat, 19 Jun 2021 11:15:10 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 31/33] tcg: Restart when exhausting the stack frame Date: Sat, 19 Jun 2021 11:14:50 -0700 Message-Id: <20210619181452.877683-32-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210619181452.877683-1-richard.henderson@linaro.org> References: <20210619181452.877683-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::432; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x432.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Assume that we'll have fewer temps allocated after restarting with a fewer number of instructions. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- tcg/tcg.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index 47cc66f159..fec922fa9e 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -3039,7 +3039,11 @@ static void temp_allocate_frame(TCGContext *s, TCGTe= mp *ts) =20 assert(align <=3D TCG_TARGET_STACK_ALIGN); off =3D ROUND_UP(s->current_frame_offset, align); - assert(off + size <=3D s->frame_end); + + /* If we've exhausted the stack frame, restart with a smaller TB. */ + if (off + size > s->frame_end) { + tcg_raise_tb_overflow(s); + } s->current_frame_offset =3D off + size; =20 ts->mem_offset =3D off; --=20 2.25.1