[Mlir-commits] [mlir] [mlir][xegpu] Add XeGPU subgroup map propagation analysis for XeGPU SIMT distribution. (PR #130240)

Fri Mar 14 10:37:09 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `mlir-nvidia` running on `mlir-nvidia` while building `mlir` at step 6 "build-check-mlir-build-only".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/138/builds/11696

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (build-check-mlir-build-only) failure: build (failure)
...
       ^
/vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/mlir/lib/Dialect/XeGPU/Transforms/XeGPUSubgroupDistribute.cpp:424:22: note: in implicit copy assignment operator for '(anonymous namespace)::SGMap' first required here
    tensorDescLayout = valueLayout.getTransposedLayout(transpose.value());
                     ^
3 warnings generated.
31.667 [90/10/5041] Linking CXX shared library lib/libMLIRNVVMTarget.so.21.0git
31.676 [89/10/5042] Creating library symlink lib/libMLIRNVVMTarget.so
31.706 [88/10/5043] Linking CXX executable bin/llc
31.713 [88/9/5044] Linking CXX executable bin/lli
31.739 [88/8/5045] Linking CXX shared library lib/libMLIRXeGPUTransforms.so.21.0git
FAILED: lib/libMLIRXeGPUTransforms.so.21.0git 
: && /usr/bin/clang++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wundef -Werror=mismatched-tags -Werror=global-constructors -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete -fuse-ld=lld -Wl,--color-diagnostics   -Wl,--gc-sections -shared -Wl,-soname,libMLIRXeGPUTransforms.so.21.0git -o lib/libMLIRXeGPUTransforms.so.21.0git tools/mlir/lib/Dialect/XeGPU/Transforms/CMakeFiles/obj.MLIRXeGPUTransforms.dir/XeGPUFoldAliasOps.cpp.o tools/mlir/lib/Dialect/XeGPU/Transforms/CMakeFiles/obj.MLIRXeGPUTransforms.dir/XeGPUSubgroupDistribute.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/lib:"  lib/libMLIRAffineUtils.so.21.0git  lib/libMLIRXeGPUDialect.so.21.0git  lib/libMLIRTransforms.so.21.0git  lib/libMLIRAffineAnalysis.so.21.0git  lib/libMLIRSCFDialect.so.21.0git  lib/libMLIRControlFlowDialect.so.21.0git  lib/libMLIRFuncDialect.so.21.0git  lib/libMLIRVectorDialect.so.21.0git  lib/libMLIRMaskableOpInterface.so.21.0git  lib/libMLIRMaskingOpInterface.so.21.0git  lib/libMLIRTensorDialect.so.21.0git  lib/libMLIRAffineDialect.so.21.0git  lib/libMLIRMemRefDialect.so.21.0git  lib/libMLIRArithUtils.so.21.0git  lib/libMLIRDialectUtils.so.21.0git  lib/libMLIRComplexDialect.so.21.0git  lib/libMLIRArithDialect.so.21.0git  lib/libMLIRInferIntRangeCommon.so.21.0git  lib/libMLIRShapedOpInterfaces.so.21.0git  lib/libMLIRDialect.so.21.0git  lib/libMLIRCastInterfaces.so.21.0git  lib/libMLIRParallelCombiningOpInterface.so.21.0git  lib/libMLIRVectorInterfaces.so.21.0git  lib/libMLIRTransformUtils.so.21.0git  lib/libMLIRSubsetOpInterface.so.21.0git  lib/libMLIRValueBoundsOpInterface.so.21.0git  lib/libMLIRDestinationStyleOpInterface.so.21.0git  lib/libMLIRRewrite.so.21.0git  lib/libMLIRRewritePDL.so.21.0git  lib/libMLIRPDLToPDLInterp.so.21.0git  lib/libMLIRPass.so.21.0git  lib/libMLIRAnalysis.so.21.0git  lib/libMLIRViewLikeInterface.so.21.0git  lib/libMLIRControlFlowInterfaces.so.21.0git  lib/libMLIRInferIntRangeInterface.so.21.0git  lib/libMLIRPresburger.so.21.0git  lib/libMLIRDataLayoutInterfaces.so.21.0git  lib/libMLIRPDLInterpDialect.so.21.0git  lib/libMLIRPDLDialect.so.21.0git  lib/libMLIRInferTypeOpInterface.so.21.0git  lib/libMLIRMemorySlotInterfaces.so.21.0git  lib/libMLIRSideEffectInterfaces.so.21.0git  lib/libMLIRLoopLikeInterface.so.21.0git  lib/libMLIRFunctionInterfaces.so.21.0git  lib/libMLIRCallInterfaces.so.21.0git  lib/libMLIRRuntimeVerifiableOpInterface.so.21.0git  lib/libMLIRUBDialect.so.21.0git  lib/libMLIRIR.so.21.0git  lib/libMLIRSupport.so.21.0git  lib/libLLVMSupport.so.21.0git  -Wl,-rpath-link,/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/lib && :
ld.lld: error: undefined symbol: mlir::detail::TypeIDResolver<mlir::gpu::GPUModuleOp, void>::id
>>> referenced by XeGPUSubgroupDistribute.cpp
>>>               tools/mlir/lib/Dialect/XeGPU/Transforms/CMakeFiles/obj.MLIRXeGPUTransforms.dir/XeGPUSubgroupDistribute.cpp.o:(mlir::detail::op_filter_iterator<mlir::gpu::GPUModuleOp, mlir::Region::OpIterator>::filter(mlir::Operation&))
>>> referenced by XeGPUSubgroupDistribute.cpp
>>>               tools/mlir/lib/Dialect/XeGPU/Transforms/CMakeFiles/obj.MLIRXeGPUTransforms.dir/XeGPUSubgroupDistribute.cpp.o:(mlir::detail::op_iterator<mlir::gpu::GPUModuleOp, mlir::Region::OpIterator>::unwrap(mlir::Operation&))
clang: error: linker command failed with exit code 1 (use -v to see invocation)
31.741 [88/7/5046] Linking CXX shared library lib/libMLIRExecutionEngine.so.21.0git
31.818 [88/6/5047] Linking CXX shared library lib/libMLIRGPUTransforms.so.21.0git
59.823 [88/5/5048] Building CXX object tools/mlir/lib/CAPI/RegisterEverything/CMakeFiles/obj.MLIRCAPIRegisterEverything.dir/RegisterEverything.cpp.o
60.916 [88/4/5049] Building CXX object tools/mlir/tools/mlir-reduce/CMakeFiles/mlir-reduce.dir/mlir-reduce.cpp.o
61.354 [88/3/5050] Building CXX object tools/mlir/tools/mlir-opt/CMakeFiles/MLIRMlirOptMain.dir/mlir-opt.cpp.o
61.517 [88/2/5051] Building CXX object tools/mlir/tools/mlir-opt/CMakeFiles/mlir-opt.dir/mlir-opt.cpp.o
64.382 [88/1/5052] Building CXX object tools/mlir/examples/transform-opt/CMakeFiles/mlir-transform-opt.dir/mlir-transform-opt.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/130240