[PATCH] Add minnum / maxnum to APFloat

[Chandler Carruth]

Feel free to submit once suggestions are addressed.

================
Comment at: include/llvm/ADT/APFloat.h:621-625
@@ -620,1 +620,7 @@
+
+LLVM_READONLY
+APFloat minnum(const APFloat &, const APFloat &);
+
+LLVM_READONLY
+APFloat maxnum(const APFloat &, const APFloat &);
 } // namespace llvm
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Please provide nice documenting comments for the semantics. Especially important to call out that these model IEEE's functionality and are not std::max.

Finally, why not inline? These seem reasonable inlining candidates....

http://reviews.llvm.org/D5715