[Mesa-dev] [Bug 87658] [llvmpipe] SEGV in sse2_has_daz on ancient Pentium4-M

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87658

--- Comment #20 from Chris Paulson-Ellis <chris at edesix.com> ---
(In reply to Roland Scheidegger from comment #19)
> Maybe using
> PIPE_ALIGN_STACK static INLINE boolean sse2_has_daz(void)
> would do the trick. I guess the PIPE_ALIGN_VAR on a stack'ed variable isn't
> working otherwise. Not sure though this works on inlined functions?

This seems to work. Without PIPE_ALIGN_STACK, fxarea has an 8-byte aligned
address, but with PIPE_ALIGN_STACK it is 16-byte aligned and the SEGV goes
away.

If preparing a final patch, remember that I had to add -mfxsr to CFLAGS to get
the patch using __builtin_ia32_fxsave to compile.

Thanks,
Chris.

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