http://d.puremagic.com/issues/show_bug.cgi?id=4155


yebblies <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull
                 CC|                            |[email protected]
           Platform|Other                       |x86
         AssignedTo|[email protected]        |[email protected]
         OS/Version|Windows                     |All
           Severity|normal                      |critical


--- Comment #1 from yebblies <[email protected]> 2012-02-24 01:42:51 EST ---
https://github.com/D-Programming-Language/dmd/pull/760

When T is a float or double, and in memory, dmd loads it to gp registers,
doubles it, then tests for zero.  When it's in ST(0), dmd uses fucompp to test
but the code that tests the flags is unaware of this and doesn't check the zero
flag to see if it was a nan comparison.

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