[llvm] [VPlan] Remove no-op SCALAR-STEPS after unrolling. (PR #123655)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Tue Mar 25 06:03:44 PDT 2025


llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-remote-linux-ubuntu` running on `as-builder-9` while building `llvm` at step 7 "build-default".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/195/builds/6689

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

```
Step 7 (build-default) failure: cmake (failure)
...
39.895 [178/8/5096] Linking CXX static library lib/libclangCodeGen.a
40.595 [177/8/5097] Linking CXX executable bin/clang-scan-deps
40.694 [176/8/5098] Linking CXX static library lib/libclangFrontendTool.a
40.766 [175/8/5099] Linking CXX executable bin/bugpoint
40.775 [173/9/5100] Linking CXX executable bin/clang-extdef-mapping
40.785 [172/9/5101] Building CXX object tools/bugpoint-passes/CMakeFiles/BugpointPasses.dir/TestPasses.cpp.o
40.796 [172/8/5102] Linking CXX static library lib/libclangHandleCXX.a
40.850 [171/8/5103] Linking CXX static library lib/libclangInterpreter.a
40.893 [170/8/5104] Linking CXX static library lib/libclangHandleLLVM.a
41.688 [169/8/5105] Linking CXX shared library lib/libLTO.so.21.0git
FAILED: lib/libLTO.so.21.0git 
: && /usr/bin/c++ -fPIC -D__OPTIMIZE__ -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-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./lib  -Wl,--gc-sections  -Wl,--version-script,"/home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/tools/lto/LTO.exports" -shared -Wl,-soname,libLTO.so.21.0git -o lib/libLTO.so.21.0git tools/lto/CMakeFiles/LTO.dir/LTODisassembler.cpp.o tools/lto/CMakeFiles/LTO.dir/lto.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:"  lib/libLLVMAArch64AsmParser.a  lib/libLLVMAArch64CodeGen.a  lib/libLLVMAArch64Desc.a  lib/libLLVMAArch64Disassembler.a  lib/libLLVMAArch64Info.a  lib/libLLVMBitReader.a  lib/libLLVMCore.a  lib/libLLVMCodeGen.a  lib/libLLVMLTO.a  lib/libLLVMMC.a  lib/libLLVMMCDisassembler.a  lib/libLLVMSupport.a  lib/libLLVMTarget.a  lib/libLLVMTargetParser.a  lib/libLLVMAsmPrinter.a  lib/libLLVMGlobalISel.a  lib/libLLVMSelectionDAG.a  lib/libLLVMAArch64Desc.a  lib/libLLVMAArch64Info.a  lib/libLLVMAArch64Utils.a  lib/libLLVMExtensions.a  lib/libLLVMPasses.a  lib/libLLVMCodeGen.a  lib/libLLVMCodeGenTypes.a  lib/libLLVMCGData.a  lib/libLLVMTarget.a  lib/libLLVMCFGuard.a  lib/libLLVMObjCARCOpts.a  lib/libLLVMCoroutines.a  lib/libLLVMipo.a  lib/libLLVMVectorize.a  lib/libLLVMSandboxIR.a  lib/libLLVMBitWriter.a  lib/libLLVMInstrumentation.a  lib/libLLVMLinker.a  lib/libLLVMFrontendOpenMP.a  lib/libLLVMScalarOpts.a  lib/libLLVMAggressiveInstCombine.a  lib/libLLVMInstCombine.a  lib/libLLVMFrontendOffloading.a  lib/libLLVMObjectYAML.a  lib/libLLVMFrontendAtomic.a  lib/libLLVMHipStdPar.a  lib/libLLVMTransformUtils.a  lib/libLLVMIRPrinter.a  lib/libLLVMAnalysis.a  lib/libLLVMProfileData.a  lib/libLLVMSymbolize.a  lib/libLLVMDebugInfoDWARF.a  lib/libLLVMDebugInfoPDB.a  lib/libLLVMDebugInfoCodeView.a  lib/libLLVMDebugInfoMSF.a  lib/libLLVMDebugInfoBTF.a  lib/libLLVMObject.a  lib/libLLVMMCParser.a  lib/libLLVMMC.a  lib/libLLVMIRReader.a  lib/libLLVMBitReader.a  lib/libLLVMAsmParser.a  lib/libLLVMCore.a  lib/libLLVMRemarks.a  lib/libLLVMBitstreamReader.a  lib/libLLVMTextAPI.a  lib/libLLVMBinaryFormat.a  lib/libLLVMTargetParser.a  lib/libLLVMSupport.a  lib/libLLVMDemangle.a  -lrt  -ldl  -lm  /usr/lib/x86_64-linux-gnu/libz.so && :
/usr/bin/ld: lib/libLLVMVectorize.a(VPlanTransforms.cpp.o): in function `llvm::VPlanTransforms::simplifyRecipes(llvm::VPlan&, llvm::Type&) [clone .localalias]':
VPlanTransforms.cpp:(.text._ZN4llvm15VPlanTransforms15simplifyRecipesERNS_5VPlanERNS_4TypeE+0x1a2a): undefined reference to `llvm::VPUnrollPartAccessor<2u>::getUnrollPart(llvm::VPUser&) const'
collect2: error: ld returned 1 exit status
41.845 [169/7/5106] Linking CXX executable bin/llvm-lto
FAILED: bin/llvm-lto 
: && /usr/bin/c++ -D__OPTIMIZE__ -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-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -Wl,-rpath-link,/home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./lib  -Wl,--gc-sections tools/llvm-lto/CMakeFiles/llvm-lto.dir/llvm-lto.cpp.o -o bin/llvm-lto  -Wl,-rpath,"\$ORIGIN/../lib:"  lib/libLLVMAArch64AsmParser.a  lib/libLLVMAArch64CodeGen.a  lib/libLLVMAArch64Desc.a  lib/libLLVMAArch64Info.a  lib/libLLVMBitReader.a  lib/libLLVMBitWriter.a  lib/libLLVMCodeGen.a  lib/libLLVMCore.a  lib/libLLVMIRReader.a  lib/libLLVMipo.a  lib/libLLVMLTO.a  lib/libLLVMMC.a  lib/libLLVMObject.a  lib/libLLVMSupport.a  lib/libLLVMTarget.a  lib/libLLVMTargetParser.a  lib/libLLVMAArch64Utils.a  lib/libLLVMAsmPrinter.a  lib/libLLVMGlobalISel.a  lib/libLLVMSelectionDAG.a  lib/libLLVMExtensions.a  lib/libLLVMPasses.a  lib/libLLVMCodeGen.a  lib/libLLVMCodeGenTypes.a  lib/libLLVMCGData.a  lib/libLLVMTarget.a  lib/libLLVMCFGuard.a  lib/libLLVMObjCARCOpts.a  lib/libLLVMCoroutines.a  lib/libLLVMipo.a  lib/libLLVMBitWriter.a  lib/libLLVMVectorize.a  lib/libLLVMSandboxIR.a  lib/libLLVMFrontendOpenMP.a  lib/libLLVMFrontendOffloading.a  lib/libLLVMObjectYAML.a  lib/libLLVMFrontendAtomic.a  lib/libLLVMLinker.a  lib/libLLVMInstrumentation.a  lib/libLLVMScalarOpts.a  lib/libLLVMAggressiveInstCombine.a  lib/libLLVMInstCombine.a  lib/libLLVMHipStdPar.a  lib/libLLVMTransformUtils.a  lib/libLLVMIRPrinter.a  lib/libLLVMAnalysis.a  lib/libLLVMProfileData.a  lib/libLLVMSymbolize.a  lib/libLLVMDebugInfoDWARF.a  lib/libLLVMDebugInfoPDB.a  lib/libLLVMObject.a  lib/libLLVMIRReader.a  lib/libLLVMBitReader.a  lib/libLLVMAsmParser.a  lib/libLLVMCore.a  lib/libLLVMRemarks.a  lib/libLLVMBitstreamReader.a  lib/libLLVMMCParser.a  lib/libLLVMMC.a  lib/libLLVMTextAPI.a  lib/libLLVMBinaryFormat.a  lib/libLLVMTargetParser.a  lib/libLLVMDebugInfoCodeView.a  lib/libLLVMDebugInfoMSF.a  lib/libLLVMDebugInfoBTF.a  lib/libLLVMSupport.a  lib/libLLVMDemangle.a  -lrt  -ldl  -lm  /usr/lib/x86_64-linux-gnu/libz.so && :
/usr/bin/ld: lib/libLLVMVectorize.a(VPlanTransforms.cpp.o): in function `llvm::VPlanTransforms::simplifyRecipes(llvm::VPlan&, llvm::Type&) [clone .localalias]':
VPlanTransforms.cpp:(.text._ZN4llvm15VPlanTransforms15simplifyRecipesERNS_5VPlanERNS_4TypeE+0x1a2a): undefined reference to `llvm::VPUnrollPartAccessor<2u>::getUnrollPart(llvm::VPUser&) const'
collect2: error: ld returned 1 exit status
42.744 [169/6/5107] Linking CXX shared library lib/libclang.so.21.0.0git
42.953 [169/5/5108] Linking CXX executable bin/clang-check
43.346 [169/4/5109] Linking CXX executable bin/clang-linker-wrapper
43.830 [169/3/5110] Linking CXX executable bin/lld
FAILED: bin/lld 
: && /usr/bin/c++ -D__OPTIMIZE__ -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-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -Wl,--export-dynamic  -Wl,-rpath-link,/home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./lib tools/lld/tools/lld/CMakeFiles/lld.dir/lld.cpp.o tools/lld/tools/lld/CMakeFiles/lld.dir/lld-driver.cpp.o -o bin/lld  -Wl,-rpath,"\$ORIGIN/../lib:"  lib/libLLVMSupport.a  lib/libLLVMTargetParser.a  lib/liblldCommon.a  lib/liblldCOFF.a  lib/liblldELF.a  lib/liblldMachO.a  lib/liblldMinGW.a  lib/liblldWasm.a  lib/liblldCOFF.a  lib/libLLVMLibDriver.a  lib/libLLVMWindowsDriver.a  lib/libLLVMWindowsManifest.a  /usr/lib/x86_64-linux-gnu/libxml2.so  lib/liblldCommon.a  lib/libLLVMOption.a  lib/libLLVMAArch64CodeGen.a  lib/libLLVMAsmPrinter.a  lib/libLLVMGlobalISel.a  lib/libLLVMSelectionDAG.a  lib/libLLVMAArch64AsmParser.a  lib/libLLVMAArch64Disassembler.a  lib/libLLVMAArch64Desc.a  lib/libLLVMMCDisassembler.a  lib/libLLVMAArch64Info.a  lib/libLLVMAArch64Utils.a  lib/libLLVMLTO.a  lib/libLLVMExtensions.a  lib/libLLVMPasses.a  lib/libLLVMCodeGen.a  lib/libLLVMCGData.a  lib/libLLVMCodeGenTypes.a  lib/libLLVMTarget.a  lib/libLLVMObjCARCOpts.a  lib/libLLVMCFGuard.a  lib/libLLVMCoroutines.a  lib/libLLVMipo.a  lib/libLLVMBitWriter.a  lib/libLLVMVectorize.a  lib/libLLVMSandboxIR.a  lib/libLLVMInstrumentation.a  lib/libLLVMLinker.a  lib/libLLVMFrontendOpenMP.a  lib/libLLVMScalarOpts.a  lib/libLLVMAggressiveInstCombine.a  lib/libLLVMInstCombine.a  lib/libLLVMFrontendOffloading.a  lib/libLLVMObjectYAML.a  lib/libLLVMFrontendAtomic.a  lib/libLLVMHipStdPar.a  lib/libLLVMTransformUtils.a  lib/libLLVMIRPrinter.a  lib/libLLVMAnalysis.a  lib/libLLVMProfileData.a  lib/libLLVMSymbolize.a  lib/libLLVMDebugInfoDWARF.a  lib/libLLVMDebugInfoPDB.a  lib/libLLVMDebugInfoCodeView.a  lib/libLLVMDebugInfoMSF.a  lib/libLLVMObject.a  lib/libLLVMTextAPI.a  lib/libLLVMMCParser.a  lib/libLLVMMC.a  lib/libLLVMIRReader.a  lib/libLLVMBitReader.a  lib/libLLVMAsmParser.a  lib/libLLVMCore.a  lib/libLLVMRemarks.a  lib/libLLVMBitstreamReader.a  lib/libLLVMBinaryFormat.a  lib/libLLVMTargetParser.a  lib/libLLVMDebugInfoBTF.a  lib/libLLVMSupport.a  -lrt  -ldl  -lm  /usr/lib/x86_64-linux-gnu/libz.so  lib/libLLVMDemangle.a && cd /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/tools/lld/tools/lld && /usr/bin/cmake -E create_symlink lld /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./bin/lld-link && cd /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/tools/lld/tools/lld && /usr/bin/cmake -E create_symlink lld /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./bin/ld.lld && cd /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/tools/lld/tools/lld && /usr/bin/cmake -E create_symlink lld /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./bin/ld64.lld && cd /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/tools/lld/tools/lld && /usr/bin/cmake -E create_symlink lld /home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./bin/wasm-ld
/usr/bin/ld: lib/libLLVMVectorize.a(VPlanTransforms.cpp.o): in function `llvm::VPlanTransforms::simplifyRecipes(llvm::VPlan&, llvm::Type&) [clone .localalias]':
VPlanTransforms.cpp:(.text._ZN4llvm15VPlanTransforms15simplifyRecipesERNS_5VPlanERNS_4TypeE+0x1a2a): undefined reference to `llvm::VPUnrollPartAccessor<2u>::getUnrollPart(llvm::VPUser&) const'
collect2: error: ld returned 1 exit status
44.962 [169/2/5111] Linking CXX executable bin/clang-import-test
47.575 [169/1/5112] Linking CXX executable bin/clang-21
FAILED: bin/clang-21 
: && /usr/bin/c++ -D__OPTIMIZE__ -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-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -Wl,--export-dynamic  -Wl,-rpath-link,/home/buildbot/worker/as-builder-9/lldb-remote-linux-ubuntu/build/./lib tools/clang/tools/driver/CMakeFiles/clang.dir/driver.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1as_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/cc1gen_reproducer_main.cpp.o tools/clang/tools/driver/CMakeFiles/clang.dir/clang-driver.cpp.o -o bin/clang-21  -Wl,-rpath,"\$ORIGIN/../lib:"  lib/libLLVMAArch64CodeGen.a  lib/libLLVMAArch64AsmParser.a  lib/libLLVMAArch64Desc.a  lib/libLLVMAArch64Disassembler.a  lib/libLLVMAArch64Info.a  lib/libLLVMAArch64Utils.a  lib/libLLVMAnalysis.a  lib/libLLVMCodeGen.a  lib/libLLVMCore.a  lib/libLLVMipo.a  lib/libLLVMAggressiveInstCombine.a  lib/libLLVMInstCombine.a  lib/libLLVMInstrumentation.a  lib/libLLVMMC.a  lib/libLLVMMCParser.a  lib/libLLVMObjCARCOpts.a  lib/libLLVMOption.a  lib/libLLVMScalarOpts.a  lib/libLLVMSupport.a  lib/libLLVMTargetParser.a  lib/libLLVMTransformUtils.a  lib/libLLVMVectorize.a  lib/libclangBasic.a  lib/libclangCodeGen.a  lib/libclangDriver.a  lib/libclangFrontend.a  lib/libclangFrontendTool.a  lib/libclangSerialization.a  lib/libLLVMAsmPrinter.a  lib/libLLVMGlobalISel.a  lib/libLLVMSelectionDAG.a  lib/libLLVMAArch64Desc.a  lib/libLLVMAArch64Info.a  lib/libLLVMAArch64Utils.a  lib/libLLVMMCDisassembler.a  lib/libclangCodeGen.a  lib/libLLVMCoverage.a  lib/libLLVMFrontendDriver.a  lib/libLLVMLTO.a  lib/libLLVMExtensions.a  lib/libLLVMPasses.a  lib/libLLVMCodeGen.a  lib/libLLVMCodeGenTypes.a  lib/libLLVMCGData.a  lib/libLLVMObjCARCOpts.a  lib/libLLVMCFGuard.a  lib/libLLVMTarget.a  lib/libLLVMCoroutines.a  lib/libLLVMipo.a  lib/libLLVMInstrumentation.a  lib/libLLVMVectorize.a  lib/libLLVMSandboxIR.a  lib/libLLVMBitWriter.a  lib/libLLVMLinker.a  lib/libLLVMHipStdPar.a  lib/libLLVMIRPrinter.a  lib/libclangExtractAPI.a  lib/libclangInstallAPI.a  lib/libLLVMTextAPIBinaryReader.a  lib/libclangRewriteFrontend.a  lib/libclangStaticAnalyzerFrontend.a  lib/libclangStaticAnalyzerCheckers.a  lib/libclangStaticAnalyzerCore.a  lib/libclangCrossTU.a  lib/libclangIndex.a  lib/libclangFrontend.a  lib/libclangDriver.a  lib/libLLVMWindowsDriver.a  lib/libLLVMOption.a  lib/libclangParse.a  lib/libclangSerialization.a  lib/libclangSema.a  lib/libclangAnalysis.a  lib/libclangASTMatchers.a  lib/libLLVMFrontendHLSL.a  lib/libclangAPINotes.a  lib/libclangEdit.a  lib/libclangAST.a  lib/libclangSupport.a  lib/libclangFormat.a  lib/libclangToolingInclusions.a  lib/libclangToolingCore.a  lib/libclangRewrite.a  lib/libclangLex.a  lib/libclangBasic.a  lib/libLLVMFrontendOpenMP.a  lib/libLLVMScalarOpts.a  lib/libLLVMAggressiveInstCombine.a  lib/libLLVMInstCombine.a  lib/libLLVMFrontendOffloading.a  lib/libLLVMTransformUtils.a  lib/libLLVMObjectYAML.a  lib/libLLVMFrontendAtomic.a  lib/libLLVMAnalysis.a  lib/libLLVMProfileData.a  lib/libLLVMSymbolize.a  lib/libLLVMDebugInfoDWARF.a  lib/libLLVMDebugInfoPDB.a  lib/libLLVMObject.a  lib/libLLVMMCParser.a  lib/libLLVMMC.a  lib/libLLVMIRReader.a  lib/libLLVMBitReader.a  lib/libLLVMAsmParser.a  lib/libLLVMTextAPI.a  lib/libLLVMDebugInfoCodeView.a  lib/libLLVMDebugInfoMSF.a  lib/libLLVMDebugInfoBTF.a  lib/libLLVMCore.a  lib/libLLVMBinaryFormat.a  lib/libLLVMTargetParser.a  lib/libLLVMRemarks.a  lib/libLLVMBitstreamReader.a  lib/libLLVMSupport.a  lib/libLLVMDemangle.a  -lrt  -ldl  -lm  /usr/lib/x86_64-linux-gnu/libz.so && :
/usr/bin/ld: lib/libLLVMVectorize.a(VPlanTransforms.cpp.o): in function `llvm::VPlanTransforms::simplifyRecipes(llvm::VPlan&, llvm::Type&) [clone .localalias]':
VPlanTransforms.cpp:(.text._ZN4llvm15VPlanTransforms15simplifyRecipesERNS_5VPlanERNS_4TypeE+0x1a2a): undefined reference to `llvm::VPUnrollPartAccessor<2u>::getUnrollPart(llvm::VPUser&) const'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/123655


More information about the llvm-commits mailing list