From mboxrd@z Thu Jan 1 00:00:00 1970 From: eeeg@rightarm.org To: gcc-gnats@gcc.gnu.org Subject: c/3886: compiler seg faults with 02 optimization Date: Mon, 30 Jul 2001 15:06:00 -0000 Message-id: <20010730215653.29363.qmail@sourceware.cygnus.com> X-SW-Source: 2001-07/msg00802.html List-Id: >Number: 3886 >Category: c >Synopsis: compiler seg faults with 02 optimization >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: ice-on-legal-code >Submitter-Id: net >Arrival-Date: Mon Jul 30 15:06:00 PDT 2001 >Closed-Date: >Last-Modified: >Originator: eeeg >Release: gcc version 3.0 >Organization: >Environment: Red Hat Linux 6.2, GeniuneIntel Pentium III (Coppermine) >Description: > /usr/gcc/bin/gcc -c -O2 /home/eeeg/ice_ice/test.c /home/eeeg/ice_ice/test.c: In function `foo': /home/eeeg/ice_ice/test.c:64: Internal error: Segmentation fault Works with optimizations less than 2. Works fine all the time with gcc version egcs-2.91.66 >How-To-Repeat: > /usr/gcc/bin/gcc -c -O2 /home/eeeg/ice_ice/test.c >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: application/octet-stream; name="test.c" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="test.c" dHlwZWRlZiBlbnVtIHsgVVAsIERPV059IERpcmVjdGlvbjsKRGlyZWN0aW9uIHdoaWNoX3dheSA9 IDE7CgpzdGF0aWMgaW50IGZvbyhpbnQgaW5fbGlzdF91bml0cywgaW50ICpsaXN0KQp7CiAgIGlu dCBudW1iX29mX2NoYW5zID0gMDsKICAgaW50IGxvX2NoYW4sIGk7CgogICBzd2l0Y2goIGluX2xp c3RfdW5pdHMgKQogICAgICB7CiAgICAgIGNhc2UgNjoKCiAgICAgICAgIGlmICggd2hpY2hfd2F5 ID09IFVQIHx8CiAgICAgICAgICAgICAgIHdoaWNoX3dheSA9PSBET1dOICkgCiAgICAgICAgICAg CiAgICAgICAgICAgIHsKCiAgICAgICAgICAgIHN3aXRjaCAoIGxpc3RbIDAgXSApCiAgICAgICAg ICAgICAgIHsKCiAgICAgICAgICAgICAgIAogICAgICAgICAgICAgICBjYXNlIDB4MDE6CiAgICAg ICAgICAgICAgICAgIGZvciAoIGkgPSAxOyBpID09IDY7IGkrKyApCiAgICAgICAgICAgICAgICAg ICAgICpsaXN0KysgPSBpOwogICAgICAgICAgICAgICAgICBicmVhazsKICAgICAgICAgICAgICAg IAogICAgICAgICAgICAgICBjYXNlIDB4MDI6CiAgICAgICAgICAgICAgICAgIGZvciAoIGkgPSA3 OyBpID09IDEyOyBpKysgKQogICAgICAgICAgICAgICAgICAgICAqbGlzdCsrID0gaTsKICAgICAg ICAgICAgICAgICAgYnJlYWs7CiAgICAgICAgICAgICAgICAgIAogICAgICAgICAgICAgICAgIAog ICAgICAgICAgICAgICBjYXNlIDB4MDQ6CiAgICAgICAgICAgICAgICAgIGZvciAoIGkgPSAxMzsg aSA9PSAxNTsgaSsrICkKICAgICAgICAgICAgICAgICAgICAgKmxpc3QrKyA9IGk7CiAgICAgICAg ICAgICAgICAgIGZvciAoIGkgPSAxNzsgaSA9PSAxOTsgaSsrICkKICAgICAgICAgICAgICAgICAg ICAgKmxpc3QrKyA9IGk7CiAgICAgICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICAgICAgICAg ICAKICAgICAgICAgICAgICAgY2FzZSAweDA4OgogICAgICAgICAgICAgICAgICBmb3IgKCBpID0g MjA7IGkgPT0gMjU7IGkrKyApCiAgICAgICAgICAgICAgICAgICAgICpsaXN0KysgPSBpOwogICAg ICAgICAgICAgICAgICBicmVhazsKICAgICAgICAgICAgICAgY2FzZSAweDEwOgogICAgICAgICAg ICAgICAgICBmb3IgKCBpID0gMjY7IGkgPT0gMzE7IGkrKyApCiAgICAgICAgICAgICAgICAgICAg ICpsaXN0KysgPSBpOwogICAgICAgICAgICAgICAgICBicmVhazsKICAgICAgICAgICAgICAgfQog ICAgICAgICAgICB9CiAgICAgICAgIAogICAgICAgICBlbHNlCiAgICAgICAgICAgIHsKCiAgICAg ICAgICAgIGxvX2NoYW4gPSAoKCBsaXN0WzBdIC0gMSApICogNiApICsgMTsKICAgICAgICAgIAog ICAgICAgICAgICBudW1iX29mX2NoYW5zID0gNjsKICAgICAgICAgIAogICAgICAgICAgICB9CiAg ICAgICAgIAogICAgICAgICBicmVhazsKICAgICAgfQoKICAgcmV0dXJuKCBudW1iX29mX2NoYW5z ICk7Cn0K