[Bug target/28795] __builtin_isunordered() and __builtin_isnan() should behave consistently

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-08-22 00:13 -------

...with emphasis on the last sentence.  I can not do this until you are
actually C99 compliant *all the time*.  I have to support well written legacy
applications that expect this macro to work *all the time*.


For if you read the docs for -ffinite-math-only, it specificially says finite
fp is only supported which means it is compliant to the C99 standard.

And for the fact -mno-ieee-fp says we don't support IEEE FP for compares which
means no NaNs when doing compares:
-mieee-fp
-mno-ieee-fp
    Control whether or not the compiler uses IEEE floating point comparisons.
These handle correctly the case where the result of a comparison is unordered. 

so this is invalid and/or a dup bug.

So closing as invalid.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28795