Floating Pt. Optimize on PA

[Jeffrey A Law]

  In message < 4.1.19981225172952.00be54f0@garfield.dis.com >you write:
  > This is lifted directly from the java VM source. I realize that I could
  > build my own SET_DOUBLE and friends, but this is part of the shared
  > JVM code, so I don't want to change it if I don't have to. Since this problem
  > was pointed out by someone at JavaSoft, I'll forward your comments back to
  > them for review.
The code is bogus.  Doesn't really matter where it came from.

  > In the mean time, this worked with gcc 2.8.x and fails in egcs at O2.
That's because our alias analysis code continues to improve.  The fact
that it worked with older compilers does not mean the code is correct.

jeff