From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17479 invoked by alias); 8 Feb 2003 22:36:01 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 17459 invoked by uid 71); 8 Feb 2003 22:36:00 -0000 Resent-Date: 8 Feb 2003 22:36:00 -0000 Resent-Message-ID: <20030208223600.17456.qmail@sources.redhat.com> Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer) Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org Resent-Reply-To: gcc-gnats@gcc.gnu.org, larry@tmpinc.com Received: (qmail 13376 invoked by uid 48); 8 Feb 2003 22:27:29 -0000 Message-Id: <20030208222729.13375.qmail@sources.redhat.com> Date: Sat, 08 Feb 2003 22:36:00 -0000 From: larry@tmpinc.com Reply-To: larry@tmpinc.com To: gcc-gnats@gcc.gnu.org X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31) Subject: optimization/9632: 'If' statement evaluates differently depending on optimization (-O vs -g) X-SW-Source: 2003-02/txt/msg00422.txt.bz2 List-Id: >Number: 9632 >Category: optimization >Synopsis: 'If' statement evaluates differently depending on optimization (-O vs -g) >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Sat Feb 08 22:36:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: larry@tmpinc.com >Release: gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-112.7.2) >Organization: >Environment: RedHat 7.2 i386 gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-112.7.2) >Description: The attached file contains a code snippet that can be compiled and run. The 'if' test fails when the code is compiled with -O and works as expected when compiled with -g. >How-To-Repeat: Refer to attachment. When compiled with -g flag, wire_draw is called as expected. When compiled with -O, wire_draw is not called. >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: application/octet-stream; name="ElemAttrOn.C" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="ElemAttrOn.C" I2luY2x1ZGUgPHN0ZGlvLmg+CgovLyBjb21waWxlL2xpbmsKLy8KLy8gZGVidWcKLy8gL3Vzci9i aW4vZysrIC14IGMrKyAtZyAtZnNpZ25lZC1jaGFyIC1EX0dOVV9TT1VSQ0U9MSBFbGVtQXR0ck9u LkMgLW8gZWxlbV9hdHRyX29uCi8vCi8vIG9wdGltaXplZAovLyAvdXNyL2Jpbi9nKysgLXggYysr IC1PIC1mc2lnbmVkLWNoYXIgLURfR05VX1NPVVJDRT0xIEVsZW1BdHRyT24uQyAtbyBlbGVtX2F0 dHJfb24KLy8KLy8gZWxlbV9hdHRyX29uIHdvcmtzIGFzIGV4cGVjdGVkIHdoZW4gY29tcGlsZWQg ZGVidWcgYW5kCi8vIGZhaWxzIHdoZW4gY29tcGlsZWQgd2l0aCBvcHRpbWl6YXRpb24KCi8vIHRo ZSAnaWYnIHN0YXRlbWVudCBhdCBsaW5lIDUyIHdvcmtzIGRpZmZlcmVudGx5Ci8vIGRlcGVuZGlu ZyBvbiBjb21waWxlIGZsYWdzLgoKc3RydWN0IE1vZGVsCnsKCXVuc2lnbmVkIGNoYXIgKmVsZW1i Owp9OwoKY2hhciAqd2lyZV9kcmF3KCBNb2RlbCAqbW9kZWwsIGludCBpeCwgaW50IG9uKQp7Cglw cmludGYoICJ3aXJlX2RyYXcgY2FsbGVkXG4iKTsKCXJldHVybiAwOwp9CgojZGVmaW5lIFdpcmVG cmFtZU9mZiAgICAweDgwCiNkZWZpbmUgRWxlbU1hcmtlck9mZiAgIDB4NDAKI2RlZmluZSBFbGVt TGFiZWxPZmYgICAgMHgyMAojZGVmaW5lIEVsZW1UeXBlT2ZmICAgICAweDEwCiNkZWZpbmUgTm9k ZUF2ZXJhZ2VkICAgIDB4MDgKCiNkZWZpbmUgQWxsRWxlbUF0dHJPZmYgIChXaXJlRnJhbWVPZmZ8 RWxlbU1hcmtlck9mZnxFbGVtTGFiZWxPZmYpCiNkZWZpbmUgV2lyZVR5cGVPZmYJKFdpcmVGcmFt ZU9mZnxFbGVtVHlwZU9mZikKCnZvaWQgRWxlbUF0dHJPbiggTW9kZWwgKm1vZGVsLCBpbnQgZWx0 eCwgdW5zaWduZWQgY2hhciBtYXNrKQp7CgkvKiB0dXJuIG9uIGVsZW1lbnQgYXR0cmlidXRlIHNl bGVjdGVkIGJ5IG1hc2sgKi8KCgl1bnNpZ25lZCBjaGFyIGVsZW1iPSBtb2RlbC0+ZWxlbWJbIGVs dHhdOwoKCW1hc2sgJj0gQWxsRWxlbUF0dHJPZmY7CgoJLy8gd2hlbiBjb21waWxlIHdpdGggLU8s IHRoZSBmb2xsb3dpbmcgaWYgc3RhdGVtZW50IGFjdHMgYXMgaWYKCS8vIGl0IGlzIGZhbHNlIGFs dGhvdWdoIGl0IGV2YWx1YXRlcyB0byBub24temVybyBmb3IgdGhpcyB0ZXN0IGNhc2UuIAoJLy8g d2hlbiBjb21waWxlZCB3aXRoIC1nLCBpdCBvcGVyYXRlcyBhcyBleHBlY3RlZCAod2lyZV9kcmF3 KCkgYW5kCgkvLyBvdGhlciByb3V0aW5lcyBhcmUgY2FsbGVkCgoJLy9mcHJpbnRmKCBzdGRlcnIs ICIlZFxuIiwgIG1hc2sgJiBXaXJlRnJhbWVPZmYpOwoKCWlmKCBtYXNrICYgV2lyZUZyYW1lT2Zm KQoJewoJCWlmKCAoZWxlbWImV2lyZVR5cGVPZmYpPT1XaXJlRnJhbWVPZmYpCS8qIHdpcmUgZnJh bWUgaXMgb2ZmICovCgkJewoJCQl3aXJlX2RyYXcoIG1vZGVsLCBlbHR4LCAxKTsJLyogdHVybiBv biAqLwoJCX0KCX0KCgltb2RlbC0+ZWxlbWJbIGVsdHhdPSBlbGVtYiAmIH5tYXNrOwp9CgptYWlu KCkKewoJdW5zaWduZWQgY2hhciBlbGVtYlsxXTsKCU1vZGVsIG1vZGVsOwoKCW1vZGVsLmVsZW1i PSBlbGVtYjsKCgllbGVtYlswXT0gV2lyZUZyYW1lT2ZmfEVsZW1NYXJrZXJPZmZ8RWxlbUxhYmVs T2ZmOwoKCUVsZW1BdHRyT24oICZtb2RlbCwgMCwgZWxlbWJbMF0pOwp9Cg==