Messages in this thread |  | | Date | Mon, 23 Oct 2000 19:20:08 +0200 | From | Andrea Arcangeli <> | Subject | Re: Kernel 2.2.17 with RedHat 7 Problem ! |
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On Mon, Oct 23, 2000 at 12:05:22PM -0400, Aaron Sethman wrote: > [..] gcc is doing the right thing, just not what you expected.
This code:
iv.it_interval.tv_sec = 0; iv.it_interval.tv_usec = 250000;
iv.it_value = iv.it_interval;
got miscompiled as:
iv.it_value = iv.it_interval; /* read random */
iv.it_interval.tv_sec = 0; iv.it_interval.tv_usec = 250000;
That is an obvious compiler bug. None legal optimization can allow the compiler to do such reordering (not even with strict aliasing enabled).
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