================
@@ -12504,6 +12514,14 @@ void Sema::CheckImplicitConversion(Expr *E, QualType
T, SourceLocation CC,
IntRange TargetRange = IntRange::forTargetOfCanonicalType(Context, Target);
if (LikelySourceRange->Width > TargetRange.Width) {
+ // Check if target is a wrapping OBT - if so, don't warn about constant
+ // conversion because wrapping behavior is defined for truncation
----------------
efriedma-quic wrote:
Wrapping is always defined for truncation (outside of
implicit-unsigned-integer-truncation etc.). The point of the constant
truncation warning is just that it indicates there was likely a mistake.
If there's some specific pattern you're accommodating here, please note it in
the comment.
https://github.com/llvm/llvm-project/pull/148914
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