[llvm] APFloat: Fix signed zero handling in minnum/maxnum (PR #83376)

[Jay Foad via llvm-commits]

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@@ -1389,8 +1389,9 @@ inline APFloat neg(APFloat X) {
   return X;
 }
 
-/// Implements IEEE minNum semantics. Returns the smaller of the 2 arguments if
-/// both are not NaN. If either argument is a NaN, returns the other argument.
+/// Implements IEEE-754 2019 minimumNumber semantics. Returns the smaller of the
+/// 2 arguments if both are not NaN. If either argument is a NaN, returns the
+/// other argument. -0 is treated as ordered
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jayfoad wrote:

Description looks truncated

https://github.com/llvm/llvm-project/pull/83376