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- From: Marcus Shawcroft <marcus dot shawcroft at arm dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Tue, 26 Feb 2013 17:38:56 +0000
- Subject: REVERSIBLE_CC_MODE query...
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Have I missed something, or is the documentation out of date ?