Fix recent SPEC2000/x86-64 ICEs

[Richard Henderson]

On Sun, Jun 29, 2003 at 05:03:53PM -0600, Roger Sayle wrote:
> One quick question.  On x86-64 in 128-bit long double mode does the x87
> instruction "fldpi" load an 80-bit or 128-bit approximation to pi?  I
> know nothing about AMD64, but it looks like your patch just extends the
> truncated 80-bit value.  Its just that this seems a bit odd.

amd64, like ia64, lies about the 128-bit-ness.
It's the normal 387 value with extra padding.


r~