On Sun, Jul 20, 2008 at 11:14:10PM -0700, Nick Lewycky wrote: > This testcase produces different output depending on whether -O1 or -O2 is > specified. The testcase is wrong. Please produce a _minimal_ variant, it even shows the same behaviour without bitfields. Please explain what exactly the following is suposed to do: | *(1+(uint64_t *) &x) x includes no unit64_t at this address, but bitfields, a different type. So this is an aliasing violation. Bastian -- Ahead warp factor one, Mr. Sulu.
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