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Wed, 16 Sep 2026 06:30:35 -0700 (PDT) X-Received: by 2002:a05:600c:3b9c:b0:49e:74b6:740f with SMTP id 5b1f17b1804b1-49eb732e48cmr41225795e9.17.1789565434982; Wed, 16 Sep 2026 06:30:34 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH] target/i386/tcg: compute C of CC_OP_ADOX without going through helper Date: Wed, 16 Sep 2026 15:30:33 +0200 Message-ID: <20260916133033.875328-1-pbonzini@redhat.com> X-Mailer: git-send-email 2.55.0 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=lists1p.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, SPF_HELO_PASS=-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: qemu development 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 @redhat.com) X-ZM-MESSAGEID: 1789565462845158500 Content-Type: text/plain; charset="utf-8" With the CC_OP_ADOX cc_op, the carry flag remains in CC_SRC just like with CC_OP_EFLAGS. Add CC_OP_ADOX to the same gen_prepare_eflags_c fast path as CC_OP_EFLAGS, to avoid generating a helper call. Signed-off-by: Paolo Bonzini Reviewed-by: Richard Henderson --- target/i386/tcg/translate.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index d8de290acb6..d13e8cdf3f0 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -924,6 +924,7 @@ static CCPrepare gen_prepare_eflags_c(DisasContext *s, = TCGv reg) .rhs_type =3D CC_PREPARE_DIRECT }; =20 case CC_OP_EFLAGS: + case CC_OP_ADOX: case CC_OP_SARB ... CC_OP_SARQ: /* CC_SRC & 1 */ return (CCPrepare) { .cond =3D TCG_COND_TSTNE, --=20 2.55.0