================
@@ -4446,6 +4455,73 @@ CompareStandardConversionSequences(Sema &S,
SourceLocation Loc,
? ImplicitConversionSequence::Better
: ImplicitConversionSequence::Worse;
+ // C++23 [over.ics.rank]p4b3:
+ // A conversion in either direction between floating-point type FP1 and
+ // floating-point type FP2 is better than a conversion in the same direction
+ // between FP1 and arithmetic type T3 if:
+ // 1) The floating-point conversion rank ([conv.rank]) of FP1 is equal to the
+ // rank of FP2, and 2) T3 is not a floating-point type, or T3 is a
+ // floating-point type whose rank is not equal to the rank of FP1, or the
+ // floating-point conversion subrank ([conv.rank]) of FP2 is greater than the
+ // subrank of T3.
----------------
ilya-biryukov wrote:
I am somewhat familiar with the overload resolution code and this has popped up
in our internal discussions, so I would be happy to review that part if you
need help.
I am not sure how much more eyes is needed on the whole change, let me know if
looking only at overloading is useful...
https://github.com/llvm/llvm-project/pull/78503
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