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([2607:fea8:a263:f600::3dbe]) by smtp.gmail.com with ESMTPSA id y19-20020a05620a44d300b006b8f4ade2c9sm11866620qkp.19.2022.10.03.07.14.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Oct 2022 07:14:23 -0700 (PDT) Message-ID: Date: Mon, 3 Oct 2022 10:14:22 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 To: gcc-patches Cc: "hernandez, aldy" From: Andrew MacLeod Subject: [PATCH] PR tree-optimization/107109 - Don't process undefined range. X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/mixed; boundary="------------MN16h3ro0wsxJj8Dv0R3iR0q" Content-Language: en-US X-Spam-Status: No, score=-12.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: This is a multi-part message in MIME format. --------------MN16h3ro0wsxJj8Dv0R3iR0q Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit I audited all the op1/op2 range for undefined values, but missed that an intervening calculation can also cause an undefined range in the middle of operator_plus::op1_range, and that is the passed to adjust_op1_for_overflow.   That routine also needs to check for undefined before asking for the type of the range. Bootstrapped on x86_64-pc-linux-gnu with no regressions.  Pushed. 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