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Re: gcc4: -ffast-math causes segfaults

On 13/07/2009 04:24, Dave Korn wrote: 
   Yes.  -ffaast-math allows the compiler to generate SSE instructions.  This
is a problem if used with plain uninitialised C common variable declarations,
because the PE file format doesn't have a way to specify the alignment of
common section allocations.

BTW, all this is PR37216:

Reading that PR just made my head spin. I'm sure glad we've got guys like you on top of this stuff. :-)

> Fixing this required adding support to both binutils and GCC; the new
> release of binutils includes this support, and both GCC HEAD and the
> coming-real-soon-now gcc-4.3.3-1 contain code to make use of the new
> ability.

Well, that's certainly reassuring. Thanks for the clarification.


Yaakov

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