[LTO][PATCH] Fix long double precision problem

[Doug Kwan (關振德)]

2007/12/5, Mark Mitchell <mark@codesourcery.com>:

> However, first we should check if DW_AT_bit_size is being emitted correctly.

On i386, 80-bit extended floating point format is stored in 12 bytes
(96 bits).  It is a problem even if DW_AT_bit_size is being emitted
correctly.

-Doug