[llvm] [VPlan] Remove VPVectorPointer for part 0 after unrolling. (PR #149735)

Sun Jul 27 06:05:39 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `hip-third-party-libs-test` running on `ext_buildbot_hw_05-hip-docker` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/206/builds/3921

<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/hip-tpl.py --jobs=32' (failure)
...
[6845/7950] Creating library symlink lib/libLLVMX86CodeGen.so
[6846/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/integer.test.dir/integer.cpp.o
[6847/7950] Building AMDGPUGenGlobalISel.inc...
[6848/7950] Building AMDGPUGenDAGISel.inc...
[6849/7950] Building AMDGPUGenInstrInfo.inc...
[6850/7950] Building AMDGPUGenAsmMatcher.inc...
[6851/7950] Building AMDGPUGenRegisterInfo.inc...
[6852/7950] Building AMDGPUGenRegisterBank.inc...
[6853/7950] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o
[6854/7950] Linking CXX shared library lib/libLLVMVectorize.so.22.0git
FAILED: lib/libLLVMVectorize.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-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/botworker/bbot/hip-third-party-libs-test/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libLLVMVectorize.so.22.0git -o lib/libLLVMVectorize.so.22.0git lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/EVLIndVarSimplify.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoadStoreVectorizer.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopIdiomVectorize.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorizationLegality.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/DependencyGraph.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/InstrMaps.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Interval.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Legality.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/BottomUpVec.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/PackReuse.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/RegionsFromBBs.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/RegionsFromMetadata.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/SeedCollection.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/TransactionAcceptOrRevert.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/TransactionSave.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/SandboxVectorizer.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/SandboxVectorizerPassBuilder.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Scheduler.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/SeedCollector.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/VecUtils.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SLPVectorizer.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/Vectorize.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlan.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanAnalysis.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanConstruction.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanPredicator.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanRecipes.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanSLP.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanTransforms.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanUnroll.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanVerifier.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanUtils.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/hip-third-party-libs-test/build/lib:"  lib/libLLVMTransformUtils.so.22.0git  lib/libLLVMSandboxIR.so.22.0git  lib/libLLVMAnalysis.so.22.0git  lib/libLLVMCore.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/hip-third-party-libs-test/build/lib && :
/usr/bin/ld: lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanTransforms.cpp.o: in function `simplifyRecipe(llvm::VPRecipeBase&, llvm::VPTypeAnalysis&)':
VPlanTransforms.cpp:(.text._ZL14simplifyRecipeRN4llvm12VPRecipeBaseERNS_14VPTypeAnalysisE+0x11c7): undefined reference to `llvm::VPUnrollPartAccessor<1u>::getUnrollPart(llvm::VPUser const&) const'
collect2: error: ld returned 1 exit status
[6855/7950] Building CXX object tools/flang/lib/Support/CMakeFiles/FortranSupport.dir/OpenMP-utils.cpp.o
[6856/7950] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.gch
[6857/7950] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/cmake_pch.hxx.gch
[6858/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/intrinsics.test.dir/intrinsics.cpp.o
[6859/7950] Building InstCombineTables.inc...
[6860/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/folding.test.dir/folding.cpp.o
[6861/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/expression.test.dir/expression.cpp.o
[6862/7950] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.gch
[6863/7950] 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 "/home/botworker/bbot/hip-third-party-libs-test/build/../llvm-zorg/zorg/buildbot/builders/annotated/hip-tpl.py", line 107, in step
    yield
  File "/home/botworker/bbot/hip-third-party-libs-test/build/../llvm-zorg/zorg/buildbot/builders/annotated/hip-tpl.py", line 44, in main
    run_command(["ninja"])
  File "/home/botworker/bbot/hip-third-party-libs-test/build/../llvm-zorg/zorg/buildbot/builders/annotated/hip-tpl.py", line 120, in run_command
    util.report_run_cmd(cmd, cwd=directory)
  File "/home/botworker/bbot/hip-third-party-libs-test/llvm-zorg/zorg/buildbot/builders/annotated/util.py", line 49, in report_run_cmd
    subprocess.check_call(cmd, shell=shell, *args, **kwargs)
  File "/usr/lib/python3.10/subprocess.py", line 369, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ninja']' returned non-zero exit status 1.
@@@STEP_FAILURE@@@
@@@BUILD_STEP update llvm-test-suite@@@
@@@HALT_ON_FAILURE@@@
Running: git reset --hard origin/main
HEAD is now at 299a0b35f [flang] enable iolength_1 on AIX (#268)
Running: git pull
Already up to date.
@@@BUILD_STEP configure test suite@@@
@@@HALT_ON_FAILURE@@@
Running: cmake -GNinja -B TS-build -S . -DTEST_SUITE_EXTERNALS_DIR=/opt/botworker/llvm/External -DAMDGPU_ARCHS=gfx90a -DTEST_SUITE_SUBDIRS=External -DEXTERNAL_HIP_TESTS_KOKKOS=ON -DCMAKE_CXX_COMPILER=/home/botworker/bbot/hip-third-party-libs-test/build/bin/clang++ -DCMAKE_C_COMPILER=/home/botworker/bbot/hip-third-party-libs-test/build/bin/clang
Step 7 (build cmake config) failure: build cmake config (failure)
...
[6845/7950] Creating library symlink lib/libLLVMX86CodeGen.so
[6846/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/integer.test.dir/integer.cpp.o
[6847/7950] Building AMDGPUGenGlobalISel.inc...
[6848/7950] Building AMDGPUGenDAGISel.inc...
[6849/7950] Building AMDGPUGenInstrInfo.inc...
[6850/7950] Building AMDGPUGenAsmMatcher.inc...
[6851/7950] Building AMDGPUGenRegisterInfo.inc...
[6852/7950] Building AMDGPUGenRegisterBank.inc...
[6853/7950] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o
[6854/7950] Linking CXX shared library lib/libLLVMVectorize.so.22.0git
FAILED: lib/libLLVMVectorize.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-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/botworker/bbot/hip-third-party-libs-test/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libLLVMVectorize.so.22.0git -o lib/libLLVMVectorize.so.22.0git lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/EVLIndVarSimplify.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoadStoreVectorizer.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopIdiomVectorize.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorizationLegality.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/DependencyGraph.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/InstrMaps.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Interval.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Legality.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/BottomUpVec.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/PackReuse.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/RegionsFromBBs.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/RegionsFromMetadata.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/SeedCollection.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/TransactionAcceptOrRevert.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Passes/TransactionSave.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/SandboxVectorizer.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/SandboxVectorizerPassBuilder.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/Scheduler.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/SeedCollector.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SandboxVectorizer/VecUtils.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SLPVectorizer.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/Vectorize.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlan.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanAnalysis.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanConstruction.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanPredicator.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanRecipes.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanSLP.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanTransforms.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanUnroll.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanVerifier.cpp.o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanUtils.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/hip-third-party-libs-test/build/lib:"  lib/libLLVMTransformUtils.so.22.0git  lib/libLLVMSandboxIR.so.22.0git  lib/libLLVMAnalysis.so.22.0git  lib/libLLVMCore.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/hip-third-party-libs-test/build/lib && :
/usr/bin/ld: lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanTransforms.cpp.o: in function `simplifyRecipe(llvm::VPRecipeBase&, llvm::VPTypeAnalysis&)':
VPlanTransforms.cpp:(.text._ZL14simplifyRecipeRN4llvm12VPRecipeBaseERNS_14VPTypeAnalysisE+0x11c7): undefined reference to `llvm::VPUnrollPartAccessor<1u>::getUnrollPart(llvm::VPUser const&) const'
collect2: error: ld returned 1 exit status
[6855/7950] Building CXX object tools/flang/lib/Support/CMakeFiles/FortranSupport.dir/OpenMP-utils.cpp.o
[6856/7950] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.gch
[6857/7950] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/cmake_pch.hxx.gch
[6858/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/intrinsics.test.dir/intrinsics.cpp.o
[6859/7950] Building InstCombineTables.inc...
[6860/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/folding.test.dir/folding.cpp.o
[6861/7950] Building CXX object tools/flang/unittests/Evaluate/CMakeFiles/expression.test.dir/expression.cpp.o
[6862/7950] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/cmake_pch.hxx.gch
[6863/7950] 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 "/home/botworker/bbot/hip-third-party-libs-test/build/../llvm-zorg/zorg/buildbot/builders/annotated/hip-tpl.py", line 107, in step
    yield
  File "/home/botworker/bbot/hip-third-party-libs-test/build/../llvm-zorg/zorg/buildbot/builders/annotated/hip-tpl.py", line 44, in main
    run_command(["ninja"])
  File "/home/botworker/bbot/hip-third-party-libs-test/build/../llvm-zorg/zorg/buildbot/builders/annotated/hip-tpl.py", line 120, in run_command
    util.report_run_cmd(cmd, cwd=directory)
  File "/home/botworker/bbot/hip-third-party-libs-test/llvm-zorg/zorg/buildbot/builders/annotated/util.py", line 49, in report_run_cmd
    subprocess.check_call(cmd, shell=shell, *args, **kwargs)
  File "/usr/lib/python3.10/subprocess.py", line 369, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ninja']' returned non-zero exit status 1.

```

</details>

https://github.com/llvm/llvm-project/pull/149735