From patchwork Sat Nov 9 12:08:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 13869532 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4AB29D5E368 for ; Sat, 9 Nov 2024 12:34:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t9kMl-0001vq-CL; Sat, 09 Nov 2024 07:14:59 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t9kMf-0001gD-Oq; Sat, 09 Nov 2024 07:14:53 -0500 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t9kMd-0004lR-JD; Sat, 09 Nov 2024 07:14:53 -0500 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id A5147A1629; Sat, 9 Nov 2024 15:08:06 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 6C93F167FB1; Sat, 9 Nov 2024 15:09:01 +0300 (MSK) Received: (nullmailer pid 3296129 invoked by uid 1000); Sat, 09 Nov 2024 12:09:01 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Paolo Bonzini , =?utf-8?q?P?= =?utf-8?q?hilippe_Mathieu-Daud=C3=A9?= , Michael Tokarev Subject: [Stable-9.1.2 01/58] tcg/s390x: fix constraint for 32-bit TSTEQ/TSTNE Date: Sat, 9 Nov 2024 15:08:02 +0300 Message-Id: <20241109120901.3295995-1-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.5 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Paolo Bonzini 32-bit TSTEQ and TSTNE is subject to the same constraints as for 64-bit, but setcond_i32 and negsetcond_i32 were incorrectly using TCG_CT_CONST ("i") instead of TCG_CT_CONST_CMP ("C"). Adjust the constraint and make tcg_target_const_match use the same sequence as tgen_cmp2: first check if the constant is a valid operand for TSTEQ/TSTNE, then accept everything for 32-bit non-test comparisons, finally check if the constant is a valid operand for 64-bit non-test comparisons. Reported-by: Philippe Mathieu-Daudé Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini (cherry picked from commit 615586cb356811e46c2e5f85c36db4b93f8381cd) Signed-off-by: Michael Tokarev diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index ad587325fc..a27e346602 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -563,6 +563,20 @@ static bool tcg_target_const_match(int64_t val, int ct, } if (ct & TCG_CT_CONST_CMP) { + if (is_tst_cond(cond)) { + if (is_const_p16(uval) >= 0) { + return true; /* TMxx */ + } + if (risbg_mask(uval)) { + return true; /* RISBG */ + } + return false; + } + + if (type == TCG_TYPE_I32) { + return true; + } + switch (cond) { case TCG_COND_EQ: case TCG_COND_NE: @@ -582,13 +596,7 @@ static bool tcg_target_const_match(int64_t val, int ct, break; case TCG_COND_TSTNE: case TCG_COND_TSTEQ: - if (is_const_p16(uval) >= 0) { - return true; /* TMxx */ - } - if (risbg_mask(uval)) { - return true; /* RISBG */ - } - break; + /* checked above, fallthru */ default: g_assert_not_reached(); } @@ -3221,9 +3229,9 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) case INDEX_op_rotl_i64: case INDEX_op_rotr_i32: case INDEX_op_rotr_i64: + return C_O1_I2(r, r, ri); case INDEX_op_setcond_i32: case INDEX_op_negsetcond_i32: - return C_O1_I2(r, r, ri); case INDEX_op_setcond_i64: case INDEX_op_negsetcond_i64: return C_O1_I2(r, r, rC);