[Mlir-commits] [mlir] [MLIR] extend `getCompressedMaskOp` support in `VectorEmulateNarrowType` (PR #116122)

[Andrzej Warzyński]

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@@ -74,6 +74,55 @@ func.func @vector_cst_maskedload_i2(%passthru: vector<5xi2>) -> vector<3x5xi2> {
 
 // -----
 
+// This tests the correctness of generating compressed mask with `vector.create_mask` and a dynamic input.
+// Specifically, the program masked loads a vector<5xi2> from `vector<3x5xi2>[1, 0]`, with an unknown mask generator `m`.
+// After emulation transformation, it masked loads 2 bytes from linearized index `vector<4xi8>[1]`, with a new compressed mask
+// given by `ceildiv(m + 1, 4)`.
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banach-space wrote:

And before the change it was `m / 4`, right?

https://github.com/llvm/llvm-project/pull/116122