llvm-project

2bac7201 - [mlir][vector] Take dim sizes into account in DropInnerMostUnitDims. (#71752)

[mlir][vector] Take dim sizes into account in DropInnerMostUnitDims. (#71752) The `stride == 1` does not imply that we can drop it. Because it could load more than 1 elements. We should also take source sizes and vector sizes into account. Otherwise it generates invalid IRs. E.g., ```mlir func.func @foo(%arg0: memref<1x1xf32>) -> vector<4x8xf32> { %c0 = arith.constant 0 : index %cst = arith.constant 0.000000e+00 : f32 %0 = vector.transfer_read %arg0[%c0, %c0], %cst : memref<1x1xf32>, vector<4x8xf32> return %0 : vector<4x8xf32> } ``` Fixes https://github.com/openxla/iree/issues/15493