[Mlir-commits] [mlir] [mlir][linalg] Update pack and unpack documentation (PR #143903)
Christopher McGirr
llvmlistbot at llvm.org
Fri Jun 27 00:16:08 PDT 2025
================
@@ -262,21 +270,50 @@ def Linalg_UnPackOp : Linalg_RelayoutOp<"unpack"> {
`inner_dims_pos[i]` (assuming that `outer_dims_perm` is not specified)
evenly.
+ `inner_dims_pos` (mandatory) specifies `k` result tensor (i.e. unpacked
+ tensor) dimensions that were tiled with the `inner_tiles` to create the
+ packed source tensor. The source tensor (i.e. packed tensor) dimensions can
+ be unpacked given `inner_dims_pos` as follows.
+ - For `0 <= i < k` the following relationship holds:
+ `shape(result)[inner_dims_pos[i]] = shape(source)[n-k+i] + shape(source)[inner_dims_pos[i]]`.
----------------
chrsmcgrr wrote:
Totally right it should be `*` and I did forget about the padding case. The new equality would hold now.
https://github.com/llvm/llvm-project/pull/143903
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