================
@@ -279,6 +279,27 @@ KnownFPClass KnownFPClass::fadd_self(const KnownFPClass
&KnownSrc,
return Known;
}
+KnownFPClass KnownFPClass::fsub(const KnownFPClass &KnownLHS,
+ const KnownFPClass &KnownRHS,
+ DenormalMode Mode) {
+ KnownFPClass Known;
----------------
dtcxzyw wrote:
We can reinterpret fsub as fadd(LHS, fneg(RHS)).
https://github.com/llvm/llvm-project/pull/175852
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