[Mlir-commits] [mlir] [mlir][scf] Add parallelLoopUnrollByFactors() (PR #163806)

LLVM Continuous Integration llvmlistbot at llvm.org
Fri Oct 24 02:16:44 PDT 2025


llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `amdgpu-offload-rhel-8-cmake-build-only` running on `rocm-docker-rhel-8` while building `mlir` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/204/builds/26011

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

```
Step 4 (annotate) failure: '../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py --jobs=32' (failure)
...
[6792/8170] Linking CXX shared module lib/ExampleIRTransforms.so
[6793/8170] Linking CXX shared module unittests/Analysis/InlineAdvisorPlugin.so
[6794/8170] Linking CXX shared module lib/CGTestPlugin.so
[6795/8170] Linking CXX shared module unittests/Analysis/InlineOrderPlugin.so
[6796/8170] Linking CXX executable bin/verify-uselistorder
[6797/8170] Linking CXX executable bin/yaml2obj
[6798/8170] Linking CXX shared module unittests/Passes/Plugins/TestPlugin.so
[6799/8170] Linking CXX shared module unittests/Passes/Plugins/DoublerPlugin.so
[6800/8170] Linking CXX executable bin/sanstats
[6801/8170] Linking CXX shared library lib/libMLIRSCFDialect.so.22.0git
FAILED: lib/libMLIRSCFDialect.so.22.0git 
: && /usr/bin/c++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-array-bounds -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -Wundef -Wno-unused-but-set-parameter -Wno-deprecated-copy -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-8-cmake-build-only/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libMLIRSCFDialect.so.22.0git -o lib/libMLIRSCFDialect.so.22.0git tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/DeviceMappingInterface.cpp.o tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/ValueBoundsOpInterfaceImpl.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-rhel-8-cmake-build-only/build/lib:"  lib/libMLIRControlFlowDialect.so.22.0git  lib/libMLIRTensorDialect.so.22.0git  lib/libMLIRAffineDialect.so.22.0git  lib/libMLIRMemRefDialect.so.22.0git  lib/libMLIRValueBoundsOpInterface.so.22.0git  lib/libMLIRAnalysis.so.22.0git  lib/libMLIRLoopLikeInterface.so.22.0git  lib/libMLIRFunctionInterfaces.so.22.0git  lib/libMLIRSideEffectInterfaces.so.22.0git  lib/libMLIRCallInterfaces.so.22.0git  lib/libMLIRDataLayoutInterfaces.so.22.0git  lib/libMLIRPresburger.so.22.0git  lib/libMLIRControlFlowInterfaces.so.22.0git  lib/libMLIRInferStridedMetadataInterface.so.22.0git  lib/libMLIRMemOpInterfaces.so.22.0git  lib/libMLIRMemorySlotInterfaces.so.22.0git  lib/libMLIRArithUtils.so.22.0git  lib/libMLIRDialectUtils.so.22.0git  lib/libMLIRComplexDialect.so.22.0git  lib/libMLIRArithDialect.so.22.0git  lib/libMLIRCastInterfaces.so.22.0git  lib/libMLIRInferIntRangeCommon.so.22.0git  lib/libMLIRInferIntRangeInterface.so.22.0git  lib/libMLIRUBDialect.so.22.0git  lib/libMLIRDialect.so.22.0git  lib/libMLIRInferTypeOpInterface.so.22.0git  lib/libMLIRDestinationStyleOpInterface.so.22.0git  lib/libMLIRParallelCombiningOpInterface.so.22.0git  lib/libMLIRRuntimeVerifiableOpInterface.so.22.0git  lib/libMLIRShapedOpInterfaces.so.22.0git  lib/libMLIRViewLikeInterface.so.22.0git  lib/libMLIRIR.so.22.0git  lib/libMLIRSupport.so.22.0git  -lpthread  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-8-cmake-build-only/build/lib && :
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `mlir::scf::ForOp::getStaticTripCount() [clone .localalias.249]':
SCF.cpp:(.text._ZN4mlir3scf5ForOp18getStaticTripCountEv+0x27): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `(anonymous namespace)::ForallOpReplaceConstantInductionVar::matchAndRewrite(mlir::scf::ForallOp, mlir::PatternRewriter&) const':
SCF.cpp:(.text._ZNK12_GLOBAL__N_135ForallOpReplaceConstantInductionVar15matchAndRewriteEN4mlir3scf8ForallOpERNS1_15PatternRewriterE+0x29d): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `mlir::scf::ForallOp::promoteIfSingleIteration(mlir::RewriterBase&) [clone .localalias.259]':
SCF.cpp:(.text._ZN4mlir3scf8ForallOp24promoteIfSingleIterationERNS_12RewriterBaseE+0x192): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `(anonymous namespace)::ParallelOpSingleOrZeroIterationDimsFolder::matchAndRewrite(mlir::scf::ParallelOp, mlir::PatternRewriter&) const':
SCF.cpp:(.text._ZNK12_GLOBAL__N_141ParallelOpSingleOrZeroIterationDimsFolder15matchAndRewriteEN4mlir3scf10ParallelOpERNS1_15PatternRewriterE+0x3a5): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `(anonymous namespace)::ForallOpSingleOrZeroIterationDimsFolder::matchAndRewrite(mlir::scf::ForallOp, mlir::PatternRewriter&) const':
SCF.cpp:(.text._ZNK12_GLOBAL__N_139ForallOpSingleOrZeroIterationDimsFolder15matchAndRewriteEN4mlir3scf8ForallOpERNS1_15PatternRewriterE+0x3b7): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
collect2: error: ld returned 1 exit status
[6802/8170] Linking CXX executable bin/obj2yaml
[6803/8170] Linking CXX shared library lib/libclangStaticAnalyzerFrontend.so.22.0git
[6804/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/logical.test.dir/logical.cpp.o
[6805/8170] Building CXX object tools/flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeFiles/CUFAttrs.dir/CUFAttr.cpp.o
[6806/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/real.test.dir/real.cpp.o
[6807/8170] Building InstCombineTables.inc...
[6808/8170] Building CXX object tools/mlir/lib/Dialect/SparseTensor/Transforms/CMakeFiles/obj.MLIRSparseTensorTransforms.dir/SparseTensorPasses.cpp.o
[6809/8170] Building CXX object tools/mlir/test/lib/Dialect/Vector/CMakeFiles/MLIRVectorTestPasses.dir/TestVectorTransforms.cpp.o
[6810/8170] Building CXX object tools/mlir/test/lib/Dialect/NVGPU/CMakeFiles/MLIRNVGPUTestPasses.dir/TestNVGPUTransforms.cpp.o
[6811/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/integer.test.dir/integer.cpp.o
[6812/8170] Building CXX object tools/mlir/lib/Dialect/Linalg/TransformOps/CMakeFiles/obj.MLIRLinalgTransformOps.dir/LinalgTransformOps.cpp.o
[6813/8170] Building CXX object tools/flang/lib/Support/CMakeFiles/FortranSupport.dir/OpenMP-utils.cpp.o
[6814/8170] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.gch
[6815/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/intrinsics.test.dir/intrinsics.cpp.o
[6816/8170] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/cmake_pch.hxx.gch
[6817/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/expression.test.dir/expression.cpp.o
[6818/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/folding.test.dir/folding.cpp.o
[6819/8170] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.gch
[6820/8170] Building CXX object tools/flang/tools/f18-parse-demo/CMakeFiles/f18-parse-demo.dir/f18-parse-demo.cpp.o
ninja: build stopped: subcommand failed.
['ninja'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 62, in step
    yield
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 53, in main
Step 7 (build cmake config) failure: build cmake config (failure)
...
[6792/8170] Linking CXX shared module lib/ExampleIRTransforms.so
[6793/8170] Linking CXX shared module unittests/Analysis/InlineAdvisorPlugin.so
[6794/8170] Linking CXX shared module lib/CGTestPlugin.so
[6795/8170] Linking CXX shared module unittests/Analysis/InlineOrderPlugin.so
[6796/8170] Linking CXX executable bin/verify-uselistorder
[6797/8170] Linking CXX executable bin/yaml2obj
[6798/8170] Linking CXX shared module unittests/Passes/Plugins/TestPlugin.so
[6799/8170] Linking CXX shared module unittests/Passes/Plugins/DoublerPlugin.so
[6800/8170] Linking CXX executable bin/sanstats
[6801/8170] Linking CXX shared library lib/libMLIRSCFDialect.so.22.0git
FAILED: lib/libMLIRSCFDialect.so.22.0git 
: && /usr/bin/c++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-array-bounds -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -Wundef -Wno-unused-but-set-parameter -Wno-deprecated-copy -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-8-cmake-build-only/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libMLIRSCFDialect.so.22.0git -o lib/libMLIRSCFDialect.so.22.0git tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/DeviceMappingInterface.cpp.o tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/ValueBoundsOpInterfaceImpl.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-rhel-8-cmake-build-only/build/lib:"  lib/libMLIRControlFlowDialect.so.22.0git  lib/libMLIRTensorDialect.so.22.0git  lib/libMLIRAffineDialect.so.22.0git  lib/libMLIRMemRefDialect.so.22.0git  lib/libMLIRValueBoundsOpInterface.so.22.0git  lib/libMLIRAnalysis.so.22.0git  lib/libMLIRLoopLikeInterface.so.22.0git  lib/libMLIRFunctionInterfaces.so.22.0git  lib/libMLIRSideEffectInterfaces.so.22.0git  lib/libMLIRCallInterfaces.so.22.0git  lib/libMLIRDataLayoutInterfaces.so.22.0git  lib/libMLIRPresburger.so.22.0git  lib/libMLIRControlFlowInterfaces.so.22.0git  lib/libMLIRInferStridedMetadataInterface.so.22.0git  lib/libMLIRMemOpInterfaces.so.22.0git  lib/libMLIRMemorySlotInterfaces.so.22.0git  lib/libMLIRArithUtils.so.22.0git  lib/libMLIRDialectUtils.so.22.0git  lib/libMLIRComplexDialect.so.22.0git  lib/libMLIRArithDialect.so.22.0git  lib/libMLIRCastInterfaces.so.22.0git  lib/libMLIRInferIntRangeCommon.so.22.0git  lib/libMLIRInferIntRangeInterface.so.22.0git  lib/libMLIRUBDialect.so.22.0git  lib/libMLIRDialect.so.22.0git  lib/libMLIRInferTypeOpInterface.so.22.0git  lib/libMLIRDestinationStyleOpInterface.so.22.0git  lib/libMLIRParallelCombiningOpInterface.so.22.0git  lib/libMLIRRuntimeVerifiableOpInterface.so.22.0git  lib/libMLIRShapedOpInterfaces.so.22.0git  lib/libMLIRViewLikeInterface.so.22.0git  lib/libMLIRIR.so.22.0git  lib/libMLIRSupport.so.22.0git  -lpthread  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-8-cmake-build-only/build/lib && :
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `mlir::scf::ForOp::getStaticTripCount() [clone .localalias.249]':
SCF.cpp:(.text._ZN4mlir3scf5ForOp18getStaticTripCountEv+0x27): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `(anonymous namespace)::ForallOpReplaceConstantInductionVar::matchAndRewrite(mlir::scf::ForallOp, mlir::PatternRewriter&) const':
SCF.cpp:(.text._ZNK12_GLOBAL__N_135ForallOpReplaceConstantInductionVar15matchAndRewriteEN4mlir3scf8ForallOpERNS1_15PatternRewriterE+0x29d): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `mlir::scf::ForallOp::promoteIfSingleIteration(mlir::RewriterBase&) [clone .localalias.259]':
SCF.cpp:(.text._ZN4mlir3scf8ForallOp24promoteIfSingleIterationERNS_12RewriterBaseE+0x192): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `(anonymous namespace)::ParallelOpSingleOrZeroIterationDimsFolder::matchAndRewrite(mlir::scf::ParallelOp, mlir::PatternRewriter&) const':
SCF.cpp:(.text._ZNK12_GLOBAL__N_141ParallelOpSingleOrZeroIterationDimsFolder15matchAndRewriteEN4mlir3scf10ParallelOpERNS1_15PatternRewriterE+0x3a5): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
tools/mlir/lib/Dialect/SCF/IR/CMakeFiles/obj.MLIRSCFDialect.dir/SCF.cpp.o: In function `(anonymous namespace)::ForallOpSingleOrZeroIterationDimsFolder::matchAndRewrite(mlir::scf::ForallOp, mlir::PatternRewriter&) const':
SCF.cpp:(.text._ZNK12_GLOBAL__N_139ForallOpSingleOrZeroIterationDimsFolder15matchAndRewriteEN4mlir3scf8ForallOpERNS1_15PatternRewriterE+0x3b7): undefined reference to `mlir::scf::computeUbMinusLb(mlir::Value, mlir::Value, bool)'
collect2: error: ld returned 1 exit status
[6802/8170] Linking CXX executable bin/obj2yaml
[6803/8170] Linking CXX shared library lib/libclangStaticAnalyzerFrontend.so.22.0git
[6804/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/logical.test.dir/logical.cpp.o
[6805/8170] Building CXX object tools/flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeFiles/CUFAttrs.dir/CUFAttr.cpp.o
[6806/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/real.test.dir/real.cpp.o
[6807/8170] Building InstCombineTables.inc...
[6808/8170] Building CXX object tools/mlir/lib/Dialect/SparseTensor/Transforms/CMakeFiles/obj.MLIRSparseTensorTransforms.dir/SparseTensorPasses.cpp.o
[6809/8170] Building CXX object tools/mlir/test/lib/Dialect/Vector/CMakeFiles/MLIRVectorTestPasses.dir/TestVectorTransforms.cpp.o
[6810/8170] Building CXX object tools/mlir/test/lib/Dialect/NVGPU/CMakeFiles/MLIRNVGPUTestPasses.dir/TestNVGPUTransforms.cpp.o
[6811/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/integer.test.dir/integer.cpp.o
[6812/8170] Building CXX object tools/mlir/lib/Dialect/Linalg/TransformOps/CMakeFiles/obj.MLIRLinalgTransformOps.dir/LinalgTransformOps.cpp.o
[6813/8170] Building CXX object tools/flang/lib/Support/CMakeFiles/FortranSupport.dir/OpenMP-utils.cpp.o
[6814/8170] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.gch
[6815/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/intrinsics.test.dir/intrinsics.cpp.o
[6816/8170] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/cmake_pch.hxx.gch
[6817/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/expression.test.dir/expression.cpp.o
[6818/8170] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/folding.test.dir/folding.cpp.o
[6819/8170] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.gch
[6820/8170] Building CXX object tools/flang/tools/f18-parse-demo/CMakeFiles/f18-parse-demo.dir/f18-parse-demo.cpp.o
ninja: build stopped: subcommand failed.
['ninja'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 62, in step
    yield
  File "../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 53, in main

```

</details>

https://github.com/llvm/llvm-project/pull/163806


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