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Re: libgcc_s, Linux, and PT_GNU_EH_FRAME, and binutils

I looked into C++ standard and couldn't find anything about
int :64; needing exactly the same treatment as long long :64.

In particular, 2.4.II.1.b.

> Hum.  The patch I remember doesn't seem to have been written. :-(
> As discussed on the thread, __m64 needs to be a vector type so
> that the x86-64 calling conventions put it in the right set of
> registers.  Which means a large repetitious patch to mmintrin.h.

Well, I'm not too concerned about x86-64 just yet.  There still isn't
any hardware out there.  I can't see holding the release for this.
Not x86-64, but it makes a difference on i686 too (ie. whether __m64
fields in structures are 64-bit or just 32-bit aligned).
This is a C ABI issue in addition to being a C++ ABI issue.

At some point, we'll break the C ABI to fix this, and with it the C++
ABI -- for programs that use this extended type.

The bottom line is that we don't have a patch.  Unless someone is going
to make one PDQ, what are we going to do?

Mark Mitchell      
CodeSourcery, LLC  

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