From mboxrd@z Thu Jan 1 00:00:00 1970 From: allen.otis@brokat.com To: gcc-gnats@gcc.gnu.org Subject: optimization/3967: gcc30 on Sparc, generates bad code causing SIGBUS Date: Wed, 08 Aug 2001 12:06:00 -0000 Message-id: <20010808190448.17282.qmail@sourceware.cygnus.com> X-SW-Source: 2001-08/msg00128.html List-Id: >Number: 3967 >Category: optimization >Synopsis: gcc30 on Sparc, generates bad code causing SIGBUS >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Wed Aug 08 12:06:01 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Allen Otis >Release: gcc 3.0 >Organization: >Environment: Solaris 8, Ultrasparc >Description: With -O2 or -O3, the code generator in gcc3.0 generates bad code for some pointer dereference, that causes a SIGBUS. A register containing an integer value is used as if it was thought to contain a pointer. gcc2.95 compiles the test program ok. Attached is a tar file containing test program and instructions . See file bug.txt for instructions >How-To-Repeat: See attached test program >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: application/x-tar; name="bug.tar.gz" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="bug.tar.gz" H4sICCKLcTsAA2J1Zy50YXIA7Dx9cBzVfW9X0lkWsjgLg21w4Bk7h61ap/vUBzbEsiwbT2RJI8lA Sulpb28lbXx3e7O7J1tJGEztPzwZJlGIobSF9krdDs14CJNSSjok9lA6oR3PRDAe6mEc6rFdahgn JZRhPECq/t7X3e7erkM6cZgO7Pj2/b7e1+/3Pn6/91bOlqe70FV+YrFUrCedhjQWi6fjLE2laMof FOtJJlPJWDoVJ/x4IhFLoPTVbhh5ypatmFClYeuWckU5zbSuwKfdSMVYGu/+bTfzaj1ZsL+tWXZU vXp1xOKxWDe3d73948lkokfYP5VIUvsz2tVrUu35jNt/nV5U8+WchreUi7pl56Izd7bUaEDQDQ9p zuqy50qaRcgt5aKlTxe1HM4bxWncMWSoSj6+2Zec8Ccn68hj27NT9WUQan0RhFpfwq6ifbdaXwQl 15cB5AEjp/kWQxipIEY6iNHt09WCn1oKfkop1LcEiPWtAGJ9C4DoW3uPH7HXj9jn2/iYv5n87RSH brWQQZLTprBlm2XVxl9vwUzC9ShQAMbuIshTDKDn+QAL5CWuwEv688wcHW9BrIASC3o+r/uzpkyl oFkBRTJmQKFFozg+o5habjPu6sCqUSiVbeBn57A1Y5bUglHUbcPEHV2+yixq+0ZNfVaxtc2+/ClT 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