================
@@ -165,6 +179,21 @@ struct KnownFPClass {
canonicalize(const KnownFPClass &Src,
DenormalMode DenormMode = DenormalMode::getDynamic());
+ /// Report known values for fmul
+ LLVM_ABI static KnownFPClass
+ fmul(const KnownFPClass &LHS, const KnownFPClass &RHS,
+ DenormalMode Mode = DenormalMode::getDynamic());
+
+ // Special case of fmul x, x.
+ static KnownFPClass square(const KnownFPClass &Src,
+ DenormalMode Mode = DenormalMode::getDynamic()) {
+ KnownFPClass Known = fmul(Src, Src, Mode);
+
+ // X, * X is always non-negative or a NaN.
----------------
dtcxzyw wrote:
```suggestion
// X * X is always non-negative or a NaN.
```
https://github.com/llvm/llvm-project/pull/173872
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