[llvm] [ADT] Add fshl/fshr operations to APSInt (PR #153790)

[Chaitanya Koparkar via llvm-commits]

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@@ -387,6 +393,20 @@ template <> struct DenseMapInfo<APSInt, void> {
   }
 };
 
+namespace APSIntOps {
+
+/// Perform a funnel shift left.
+///
+/// fshl(X,Y,Z): (X << (Z % BW)) | (Y >> (BW - (Z % BW)))
+LLVM_ABI APSInt fshl(const APSInt &Hi, const APSInt &Lo, const APSInt &Shift);
+
+/// Perform a funnel shift right.
+///
+/// fshr(X,Y,Z): (X << (BW - (Z % BW))) | (Y >> (Z % BW))
+LLVM_ABI APSInt fshr(const APSInt &Hi, const APSInt &Lo, const APSInt &Shift);
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ckoparkar wrote:

Fixed.

https://github.com/llvm/llvm-project/pull/153790