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Re: glibc 2.21 - Machine maintainers, please test your machines.
- From: Andreas Schwab <schwab at suse dot de>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: Chris Metcalf <cmetcalf at ezchip dot com>, Torvald Riegel <triegel at redhat dot com>, "Carlos O'Donell" <carlos at redhat dot com>, GNU C Library <libc-alpha at sourceware dot org>, David Miller <davem at davemloft dot net>, Richard Henderson <rth at redhat dot com>, Mike Frysinger <vapier at gentoo dot org>, "Joseph S. Myers" <joseph at codesourcery dot com>, Kaz Kojima <kkojima at rr dot iij4u dot or dot jp>, Thomas Schwinge <thomas at codesourcery dot com>, Marcus Shawcroft <marcus dot shawcroft at linaro dot org>, Chung-Lin Tang <chunglin_tang at mentor dot com>, Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>, Andreas Krebbel <krebbel at linux dot vnet dot ibm dot com>
- Date: Mon, 26 Jan 2015 16:03:59 +0100
- Subject: Re: glibc 2.21 - Machine maintainers, please test your machines.
- Authentication-results: sourceware.org; auth=none
- References: <54C2BDD7 dot 7000304 at redhat dot com> <54C3B6D5 dot 3090308 at ezchip dot com> <1422119595 dot 29655 dot 42 dot camel at triegel dot csb> <54C5094A dot 8060300 at ezchip dot com> <54C51D94 dot 6030007 at ezchip dot com> <CAMe9rOpOuuC_Bf1eHs9iaiUY6V-fVMHUCKZPAwje_NemBy84wA at mail dot gmail dot com> <20150125215150 dot GA15033 at gmail dot com> <54C569E5 dot 9050305 at ezchip dot com> <CAMe9rOrundPWENuw-Ne=pW6706Rc9RLpkw7Zx859M9G1JRFk0A at mail dot gmail dot com> <mvmd261rj1p dot fsf at hawking dot suse dot de> <CAMe9rOotZWCHsp4Wizrk4_i+-CWVVxjrRy9n_9_sF7yuW9TyiQ at mail dot gmail dot com> <mvmlhkpps9f dot fsf at hawking dot suse dot de> <CAMe9rOoKMiLm1sUmQYFEkkO=SRTPqZkmHuBh7_4jLqFADTcZbA at mail dot gmail dot com> <mvmd261ppcx dot fsf at hawking dot suse dot de> <CAMe9rOrn_D7pzsp2bJ_soLLGBqO20bPvy=ys+rhnfaaR1ERPHg at mail dot gmail dot com>
The compiler can simplify operations based on the known alignment of
objects. This is like any other undefined behaviour.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
- References:
- glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.
- Re: glibc 2.21 - Machine maintainers, please test your machines.