Irix6 native long double libcalls progress report (and problem)

[Richard Henderson]

On Thu, Jan 30, 2003 at 04:51:45PM -0500, Kaveh R. Ghazi wrote:
> 43f0000000000000 bff0000000000000
> 43efffffffffffff 409ffc0000000000

Hmm.  They seem to be doing some of what Alex proposed a while
ago -- making use of the sign bit.

Theirs is (2**64, -1), ours is (0xfffffffffffff800, 0x7ff).

> But the bit patterns are different!  And I'm guessing that this
> confuses the gcc comparison function.

Almost certainly.

As for using SGI's comparison routines, you can do that from
expanders in the backend, with direct calls to emit_library_call
etc.  That's what I do for Tru64's long double library.


r~