REVERSIBLE_CC_MODE query...

Marcus Shawcroft marcus.shawcroft@arm.com
Tue Feb 26 17:39:00 GMT 2013


Folks,

The documentation for REVERSIBLE_CC_MODE states:

...
"If SELECT_CC_MODE can ever return mode for a floating-point inequality 
comparison, then REVERSIBLE_CC_MODE (mode) must be zero."
..


This statement appears to go back to ~1996.  In 2001 this patch
http://gcc.gnu.org/ml/gcc-patches/2001-01/msg00454.html appears to have 
removed the above constraint for targets that support a full complement 
of trapping and non-trapping comparisons.

Have I missed something, or is the documentation out of date ?

Thanks
/Marcus



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