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From: "foo at mailinator dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/39855]  New: Shift optimization discards operands' side effects
Date: Wed, 22 Apr 2009 18:38:00 -0000	[thread overview]
Message-ID: <bug-39855-17390@http.gcc.gnu.org/bugzilla/> (raw)

#include <stdio.h>
int foo() {
    puts("Hello world");
    return 0;
}
int main() {
    foo() << 30 << 2;
    return (unsigned)foo() >> 16 >> 16;
}

% gcc test.c
% ./a.out
%


-- 
           Summary: Shift optimization discards operands' side effects
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: foo at mailinator dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39855


             reply	other threads:[~2009-04-22 18:38 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-22 18:38 foo at mailinator dot com [this message]
2009-04-22 19:10 ` [Bug c/39855] [4.3/4.4/4.5 Regression] " jakub at gcc dot gnu dot org
2009-04-22 20:18 ` jakub at gcc dot gnu dot org
2009-04-22 20:21 ` jakub at gcc dot gnu dot org
2009-04-22 21:58 ` jakub at gcc dot gnu dot org
2009-04-22 22:03 ` jakub at gcc dot gnu dot org
2009-04-22 22:07 ` [Bug c/39855] [4.3 " jakub at gcc dot gnu dot org
2009-06-17 20:59 ` rguenth at gcc dot gnu dot org
2009-06-18 14:44 ` rguenth at gcc dot gnu dot org
2009-06-19 12:23 ` rguenth at gcc dot gnu dot org
2009-06-19 12:24 ` rguenth at gcc dot gnu dot org

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