From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f50.google.com (mail-ej1-f50.google.com [209.85.218.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 62095156C1 for ; Tue, 25 Jul 2023 08:30:10 +0000 (UTC) Received: by mail-ej1-f50.google.com with SMTP id a640c23a62f3a-991fe70f21bso835126166b.3 for ; Tue, 25 Jul 2023 01:30:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sigma-star.at; s=google; t=1690273808; x=1690878608; 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=+El33RZAEEY0jlf/tLKduSvoPPneXyFUmg4Fbyb7/AA=; b=cKj2QdOO8QpWUxlNcqanO4Eaal4iiYbMS1EeEB7QCFTLWoPlfms8Y3YEkehRQ+sFZQ q/iQ8OWeZaQpGK5tdljR7VBf3dwaEPAr7n0wWKMVhK7ImGjBBe0ZSS4xYbCH+Bq4Cz8i 26fdSkysSRJpG95EFnmX+LFeBoFXIZAPfcSUWDhLinFHOGx7dtP9VzegmWh8uvV54Zm6 zHiNV4Fp5wHIJ5p04AaRBPi2BqvrhyBDrJIrBoz8wG7lWah4MEgdwDLS2+4Lk72t4DCK I8q5vtJZPFhL/idXqY5ozhwHR90TPYLR42pUy820UK26YZIdXe6VNc5FJJZjvRRhIQAp iJKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690273808; x=1690878608; 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=+El33RZAEEY0jlf/tLKduSvoPPneXyFUmg4Fbyb7/AA=; b=ADT+m6ucR5iB9fDfN594DgZ2+ouNPOUp6hxnCdz/DerTCSKb1JsB9gjWL80MV5kG3L cikHsyxe6lrdi2FTl6rCv4m8vo5y1ARxLUkHL9v9G8tXmafrl3WySB/UwgoHFA1oc9BP QjPeDtCTN0cSzSFWJ2ewgZrORHLmADZxmBcOmrucG8TgK5Z/mUgITF/QGqByFrcTfCUq 5ytDD55T0igIxDJbSvLgbdofUwrdTU/HEP3pkZNG4j7tM3p7LJw+dlF22vFPh0ISrQLS IZOawl3sAXEs7WVkFdvm67R3zx/Uv/EORYKNDXm4SPmupVpGzW+/2HaIdo+qKuNAMUbO Rgrw== X-Gm-Message-State: ABy/qLbb3vccEpVmN8EJD3TBsl+QNUirHg7vJbUiEORKEDusXirNb56v 0tUFWWJpAQ++la+SZsM9d2cPvkiroqgbrsE4GLU= X-Google-Smtp-Source: APBJJlEUM2zvlghjeo0kf43f2mY90AA+KJ/SlGQA10wYxllz3KxGfyRNDpR4dI62fDdrrrpN/+VP8g== X-Received: by 2002:a17:906:8e:b0:997:ea90:96b4 with SMTP id 14-20020a170906008e00b00997ea9096b4mr11341076ejc.61.1690273808514; Tue, 25 Jul 2023 01:30:08 -0700 (PDT) Received: from foxxylove.corp.sigma-star.at ([82.150.214.1]) by smtp.gmail.com with ESMTPSA id l2-20020a170906230200b00997e52cb30bsm7752080eja.121.2023.07.25.01.30.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Jul 2023 01:30:08 -0700 (PDT) From: Aaron Marcher To: xenomai@lists.linux.dev Cc: richard@nod.at, jan.kiszka@siemens.com, Aaron Marcher Subject: [PATCH 08/10] alchemytests: Fix task-2 Date: Tue, 25 Jul 2023 10:29:57 +0200 Message-Id: <20230725082959.5144-9-aaron@sigma-star.at> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230725082959.5144-1-aaron@sigma-star.at> References: <1753829974.221010.1690209596711.JavaMail.zimbra@nod.at> <20230725082959.5144-1-aaron@sigma-star.at> Precedence: bulk X-Mailing-List: xenomai@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit task-2 seems to suffer from modern gcc, changes to safety and count are dead stores. Uses a compiler barrier to mitigate this behaviour. https://lore.kernel.org/xenomai/2065449276.254073.1649941119506.JavaMail.zimbra@nod.at/ Signed-off-by: Aaron Marcher --- testsuite/smokey/alchemytests/task-2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/testsuite/smokey/alchemytests/task-2.c b/testsuite/smokey/alchemytests/task-2.c index 592f2ed20..1284a8b61 100644 --- a/testsuite/smokey/alchemytests/task-2.c +++ b/testsuite/smokey/alchemytests/task-2.c @@ -29,8 +29,10 @@ static void background_task(void *arg) traceobj_mark(&trobj, 2); - while (--safety > 0) + while (--safety > 0) { + compiler_barrier(); count++; + } traceobj_exit(&trobj); } -- 2.35.3