From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794601607; b=YhmK9H0ITpsB5PFH+JFlA0K4ToeiUBZCnols8xQKXuVIjwiXNCMRzvy0BMwW++CRoTL5 70Wt8dhOYBQpZ5roYb2gW2ibgGEh0IlVdsJqG4KMB95Qkd9uI/ZxtS6wunDd8Y1Uvh60m FMmdKTO7cuYlQsjUHloIJ5/LRTtES7VCRWTvT3eblQGt0hOMgH9tE6rbaqbXda5MRuZLB OimjLqJrQtB5HL1bWoEMp0byIXwKCyCascr7K/H4VdRkJp188RsRMqx55rjqlFFZYi9Ab yHCWYhjIgo0MVRV16N+M/viJEcFzc0nLZxN3iM3I3gQ3t5FaLDfOZG52qPi5MBmDz3g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794601607; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=FmwKn+0132XfM1jT4Ty31E/2s2Qpm1Pe2Dnkt3JBbyk=; b=eecPtRFAaVvCnIUyFTLzEIPPWOEMOPRqF+Z9fBGaUTZZGNWY053zJv9hzqbKD38BvzBI o8jusldYo3MEaAMhqST4OpW3EiDh0/eC6roXn+morlWBOqgUdg8mvtOa4FUNJeRGlJI7W zSlAf1KUlreB/36Bgf5Ed5HdeuHBt7CMbFOXN2rcq4JkaLr5nkL9fmQxgG8vADrVNrgew 8qQBWOmZ+g3BdrKWk4LMYfd/E8aABL5BbJJeiaeg2fHZ+Lyg4SaZZd8JABQE6OOkbI3b/ fk3OWlNREJ+W2ouMT1DfIstlBgy6YMp7Jdo97NadSFscCG9J79slIUtbW475M2Vl7DA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=TVPsi2Ox; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D041D606A8A5 for ; Fri, 13 Nov 2026 20:26:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=TVPsi2Ox Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81D641F000CC; Fri, 13 Nov 2026 20:26:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794601607; bh=FmwKn+0132XfM1jT4Ty31E/2s2Qpm1Pe2Dnkt3JBbyk=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=TVPsi2OxiwYbyj6yS3lC+zAzC8MfJSABVE4KbQZhJG1YNPbVpyz7i1sWrF6q3Itnw 74Ppbxoc1a/7SXXhJDdAavkMVu9sAcFoAs+/y6l3jEgqbIzjLL6q1xtDfJM7WRLP/J +3ZK2ItZMHgrCAFMwWdOROcMEnqSJ0tRD14Y5WG3u1saqPvNjlGENCO6qoMoQgcDg1 4vYCGp+QXZI90aBXtQdwoTTlw+Vnkog7Lar37ozFRZSRMSwVJsJR85xQtxzSFgAbXv q8EtH2/LDhCh2v/iTTPkjE4etqndSNm2FwnjsNdCXwzeNl5Q9/oN0N/poVvUgXJYq+ cYpTmShdZMM6A== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 05/11] perf tests: Exercise data type resolution from a register Reply-To: sashiko-reviews@lists.linux.dev To: "Arnaldo Carvalho de Melo" Cc: linux-perf-users@vger.kernel.org In-Reply-To: <20261113200850.2803460-6-acme@kernel.org> References: <20261113200850.2803460-1-acme@kernel.org> <20261113200850.2803460-6-acme@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 13 Nov 2026 20:26:47 +0000 X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > From: Arnaldo Carvalho de Melo >=20 > At -O2 a struct pointer lives in a register and DWARF describes it with > a register location, while the unoptimized workloads the data type tests > profile keep their variables on the stack. >=20 > Build a workload with a noinline function that gets the pointer from a > volatile global, which keeps it in a register, and check that its three > member accesses are resolved from that location. >=20 > Signed-off-by: Arnaldo Carvalho de Melo Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261113200850.2803= 460-1-acme@kernel.org?part=3D5