Matthieu> the __ieee754_hypot function returns the wrong answer
Matthieu> in almost every case when compiled with -O.

This is a duplicate bug.  Oh well, I guess that's one of the dangers
of having the quality of users that we have.


I committed a fix to the math library this morning that replaced
fdlibm's run-time byte order detection with appropriate constants.
This fixes hypot().  It also fixes asin(), which some of you may
remember was the only function that had failures when I preformed my
libm vs. fdlibm tests on a i386 without a i387.  This change could
also be fixing other problems that we didn't know about yet.

I was able determine what was causing the problem by studying gcc's
assembly output for both optimized & unoptimized cases.  I created a
simple test case, and submitted an article to the language-lawyer
types in comp.std.c asking if they think Gcc's optimization was too
aggressive, or the bug is in fdlibm.

	--jtc


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