================
@@ -13861,6 +13897,36 @@ Sema::CheckReturnValExpr(Expr *RetValExp, QualType
lhsType,
CheckPPCMMAType(RetValExp->getType(), ReturnLoc);
}
+/// Diagnose comparison to NAN or INFINITY in fast math modes.
+/// The comparison to NaN or INFINITY is always false in
+/// fast modes: float evaluation will not result in inf or nan.
+void Sema::CheckInfNaNFloatComparison(SourceLocation Loc, Expr *LHS, Expr *RHS,
----------------
zahiraam wrote:
I have actually tried that but I noticed that
`getSpellingOfSingleCharacterNumericConstant` of inf/nan will both return "0"
so I will have no way to distinguish between inf + 1 and 0 + 1 and both will
generate a warning. Unless there is other way of finding out that the token is
nan/inf?
https://github.com/llvm/llvm-project/pull/76873
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