llvm-project

1c3e4e99 - Reapply "[AMDGPU] fold `memref.subview/expand_shape/collapse_shape` into `amdgpu.gather_to_lds`" (#150334)

Reapply "[AMDGPU] fold `memref.subview/expand_shape/collapse_shape` into `amdgpu.gather_to_lds`" (#150334) This is a reapply of patch #149851. The reapply also fixes a CMake/Bazel build issue, which was the reason of the revert. (Thanks @rupprecht ) Original patch (#149851) message: ----- This PR adds a new optimization pass to fold `memref.subview/expand_shape/collapse_shape` ops into consumer `amdgpu.gather_to_lds` operations. * Implements a new pass `AmdgpuFoldMemRefOpsPass` with pattern `FoldMemRefOpsIntoGatherToLDSOp` * Adds corresponding folding tests