[llvm] [CodeGen][NPM] Stitch up loop passes in codegen pipeline (PR #148114)

Sun Jul 27 22:51:07 PDT 2025

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/138/builds/16707

<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)
...
178.407 [108/13/5217] Building CXX object tools/mlir/lib/CAPI/ExecutionEngine/CMakeFiles/obj.MLIRCAPIExecutionEngine.dir/ExecutionEngine.cpp.o
179.604 [108/12/5218] Building CXX object tools/llc/CMakeFiles/llc.dir/llc.cpp.o
179.791 [108/11/5219] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassBuilderPipelines.cpp.o
181.294 [108/10/5220] Building CXX object tools/llc/CMakeFiles/llc.dir/NewPMDriver.cpp.o
181.396 [108/9/5221] Building CXX object tools/mlir/lib/Target/LLVM/CMakeFiles/obj.MLIRTargetLLVM.dir/ModuleToObject.cpp.o
181.900 [108/8/5222] Building CXX object tools/mlir/lib/ExecutionEngine/CMakeFiles/MLIRJitRunner.dir/JitRunner.cpp.o
182.339 [108/7/5223] Building CXX object tools/mlir/lib/ExecutionEngine/CMakeFiles/MLIRExecutionEngine.dir/ExecutionEngine.cpp.o
185.926 [108/6/5224] Building CXX object tools/lli/CMakeFiles/lli.dir/lli.cpp.o
198.430 [108/5/5225] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ISelLowering.cpp.o
198.550 [107/5/5226] Linking CXX shared library lib/libLLVMX86CodeGen.so.22.0git
FAILED: lib/libLLVMX86CodeGen.so.22.0git 
: && /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 -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete -fuse-ld=lld -Wl,--color-diagnostics   -Wl,--gc-sections -shared -Wl,-soname,libLLVMX86CodeGen.so.22.0git -o lib/libLLVMX86CodeGen.so.22.0git lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ArgumentStackSlotRebase.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86AsmPrinter.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86AvoidTrailingCall.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CallFrameOptimization.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CallingConv.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CmovConversion.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CodeGenPassBuilder.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86DomainReassignment.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86DiscriminateMemOps.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86LowerTileCopy.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86LowerAMXType.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86LowerAMXIntrinsics.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86TileConfig.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FastPreTileConfig.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FastTileConfig.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86PreTileConfig.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ExpandPseudo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FastISel.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FixupBWInsts.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FixupLEAs.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FixupInstTuning.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FixupVectorConstants.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86AvoidStoreForwardingBlocks.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86DynAllocaExpander.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FixupSetCC.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FlagsCopyLowering.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FloatingPoint.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FrameLowering.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ISelDAGToDAG.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ISelLowering.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ISelLoweringCall.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86IndirectBranchTracking.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86IndirectThunks.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InterleavedAccess.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InsertPrefetch.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InstCombineIntrinsic.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InstrFMA3Info.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InstrFoldTables.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InstrInfo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CompressEVEX.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86LoadValueInjectionLoadHardening.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86LoadValueInjectionRetHardening.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86MCInstLower.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86MachineFunctionInfo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86MacroFusion.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86OptimizeLEAs.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86PadShortFunction.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86PartialReduction.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86RegisterInfo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ReturnThunks.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86SelectionDAGInfo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ShuffleDecodeConstantPool.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86SpeculativeLoadHardening.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86SpeculativeExecutionSideEffectSuppression.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86Subtarget.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86SuppressAPXForReloc.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86TargetMachine.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86TargetObjectFile.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86TargetTransformInfo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86VZeroUpper.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86WinEHState.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86WinEHUnwindV2.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InsertWait.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86CallLowering.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86InstructionSelector.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86LegalizerInfo.cpp.o lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86RegisterBankInfo.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/lib:"  lib/libLLVMAsmPrinter.so.22.0git  lib/libLLVMCFGuard.so.22.0git  lib/libLLVMGlobalISel.so.22.0git  lib/libLLVMIRPrinter.so.22.0git  lib/libLLVMInstrumentation.so.22.0git  lib/libLLVMSelectionDAG.so.22.0git  lib/libLLVMX86Desc.so.22.0git  lib/libLLVMX86Info.so.22.0git  lib/libLLVMCodeGen.so.22.0git  lib/libLLVMScalarOpts.so.22.0git  lib/libLLVMTarget.so.22.0git  lib/libLLVMTransformUtils.so.22.0git  lib/libLLVMAnalysis.so.22.0git  lib/libLLVMProfileData.so.22.0git  lib/libLLVMCore.so.22.0git  lib/libLLVMCodeGenTypes.so.22.0git  lib/libLLVMMC.so.22.0git  lib/libLLVMTargetParser.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/lib && :
ld.lld: error: undefined symbol: llvm::ObjCARCContractPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&)
>>> referenced by X86CodeGenPassBuilder.cpp
>>>               lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CodeGenPassBuilder.cpp.o:(llvm::detail::PassModel<llvm::Function, llvm::ObjCARCContractPass, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&))
clang: error: linker command failed with exit code 1 (use -v to see invocation)
208.551 [107/4/5227] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassBuilder.cpp.o
211.949 [107/3/5228] Building CXX object tools/mlir/unittests/ExecutionEngine/CMakeFiles/MLIRExecutionEngineTests.dir/Invoke.cpp.o
214.370 [107/2/5229] Building CXX object tools/mlir/examples/toy/Ch7/CMakeFiles/toyc-ch7.dir/toyc.cpp.o
214.396 [107/1/5230] Building CXX object tools/mlir/examples/toy/Ch6/CMakeFiles/toyc-ch6.dir/toyc.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/148114