================
@@ -2141,4 +2141,37 @@ def VecCmpOp : CIR_Op<"vec.cmp", [Pure,
SameTypeOperands]> {
}];
}
+//===----------------------------------------------------------------------===//
+// VecShuffleDynamicOp
+//===----------------------------------------------------------------------===//
+
+def VecShuffleDynamicOp : CIR_Op<"vec.shuffle.dynamic",
+ [Pure, AllTypesMatch<["vec", "result"]>]> {
+ let summary = "Shuffle a vector using indices in another vector";
+ let description = [{
+ The `cir.vec.shuffle.dynamic` operation implements the undocumented form of
+ Clang's __builtin_shufflevector, where the indices of the shuffled result
+ can be runtime values.
+
+ There are two input vectors, which must have the same number of elements.
+ The second input vector must have an integral element type. The elements of
+ the second vector are interpreted as indices into the first vector. The
+ result vector is constructed by taking the elements from the first input
+ vector from the indices indicated by the elements of the second vector.
+
+ ```mlir
+ %new_vec = cir.vec.shuffle.dynamic %vec : !cir.vector<4 x !s32i>, %indices
: !cir.vector<4 x !s32i>
----------------
andykaylor wrote:
Can you reformat this for 80 characters?
https://github.com/llvm/llvm-project/pull/141411
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