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Author SHA1 Message Date
Christian Ulmann
dbd4a0dd38
[MLIR][GPUCommon] Remove typed pointer support (#70735) 
This commit removes the GPUCommon's lowering support for typed pointers.
Typed pointers have been deprecated for a while now and it's planned to
soon remove them from the LLVM dialect.

Related PSA:
https://discourse.llvm.org/t/psa-removal-of-typed-pointers-from-the-llvm-dialect/74502
 2023-10-31 09:22:44 +01:00
Markus Böck
0e5aeae6f5 [mlir][GPUToLLVM] Add support for emitting opaque pointers 
Part of https://discourse.llvm.org/t/rfc-switching-the-llvm-dialect-and-dialect-lowerings-to-opaque-pointers/68179

This patch adds the new pass option `use-opaque-pointers` to the GPU to LLVM lowerings (including ROCD and NVVM) and adapts the code to support using opaque pointers in addition to typed pointers.
The required changes mostly boil down to avoiding `getElementType` and specifying base types in GEP and Alloca.

In the future opaque pointers will be the only supported model, hence tests have been ported to using opaque pointers by default. Additional regression tests for typed-pointers have been added to avoid breaking existing clients.

Note: This does not yet port the `GpuToVulkan` passes.

Differential Revision: https://reviews.llvm.org/D144448
 2023-02-21 20:46:33 +01:00
Xiang Li
16f8d17f7b [mlir] Add "memref::MemRefDialect" as dependentDialects for GpuToLLVMConversionPass 
For https://github.com/llvm/llvm-project/issues/60070.
The issue is caused by memref.store is not registed.
Registe it by add "memref::MemRefDialect" as dependetDialects for GpuToLLVMConsersionPass.

Differential Revision: https://reviews.llvm.org/D141987
 2023-01-20 14:12:38 -05:00