[llvm] [VectorCombine] New folding pattern for extract/binop/shuffle chains (PR #145232)
LLVM Continuous Integration via llvm-commits
llvm-commits at lists.llvm.org
Sun Aug 24 01:59:28 PDT 2025
llvm-ci wrote:
LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-android` running on `sanitizer-buildbot-android` while building `llvm` at step 2 "annotate".
Full details are available at: https://lab.llvm.org/buildbot/#/builders/186/builds/11842
<details>
<summary>Here is the relevant piece of the build log for the reference</summary>
```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
[1612/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSection.cpp.o
[1613/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSectionMachO.cpp.o
[1614/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCStreamer.cpp.o
[1615/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSFrame.cpp.o
[1616/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSPIRVStreamer.cpp.o
[1617/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSubtargetInfo.cpp.o
[1618/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSymbol.cpp.o
[1619/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSymbolELF.cpp.o
[1620/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSymbolXCOFF.cpp.o
[1621/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o
FAILED: lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build0/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/lib/Transforms/Vectorize -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/include -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -std=c++17 -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o -MF lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o.d -o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o -c /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp:4491:7: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
4491 | case Instruction::ICmp:
| ^
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp:4491:7: note: insert 'LLVM_FALLTHROUGH;' to silence this warning
4491 | case Instruction::ICmp:
| ^
| LLVM_FALLTHROUGH;
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp:4491:7: note: insert 'break;' to avoid fall-through
4491 | case Instruction::ICmp:
| ^
| break;
1 error generated.
[1622/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCTargetOptions.cpp.o
[1623/5596] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/LowerMatrixIntrinsics.cpp.o
[1624/5596] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/LoopStrengthReduce.cpp.o
[1625/5596] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/SimpleLoopUnswitch.cpp.o
[1626/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlan.cpp.o
[1627/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOModule.cpp.o
[1628/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanRecipes.cpp.o
[1629/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOCodeGenerator.cpp.o
[1630/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o
[1631/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/ThinLTOCodeGenerator.cpp.o
[1632/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o
[1633/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o
[1634/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SLPVectorizer.cpp.o
ninja: build stopped: subcommand failed.
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
@@@STEP_FAILURE@@@
Step 8 (bootstrap clang) failure: bootstrap clang (failure)
...
[1612/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSection.cpp.o
[1613/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSectionMachO.cpp.o
[1614/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCStreamer.cpp.o
[1615/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSFrame.cpp.o
[1616/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSPIRVStreamer.cpp.o
[1617/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSubtargetInfo.cpp.o
[1618/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSymbol.cpp.o
[1619/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSymbolELF.cpp.o
[1620/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCSymbolXCOFF.cpp.o
[1621/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o
FAILED: lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build0/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/lib/Transforms/Vectorize -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/include -I/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -std=c++17 -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o -MF lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o.d -o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VectorCombine.cpp.o -c /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp:4491:7: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
4491 | case Instruction::ICmp:
| ^
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp:4491:7: note: insert 'LLVM_FALLTHROUGH;' to silence this warning
4491 | case Instruction::ICmp:
| ^
| LLVM_FALLTHROUGH;
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm-project/llvm/lib/Transforms/Vectorize/VectorCombine.cpp:4491:7: note: insert 'break;' to avoid fall-through
4491 | case Instruction::ICmp:
| ^
| break;
1 error generated.
[1622/5596] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCTargetOptions.cpp.o
[1623/5596] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/LowerMatrixIntrinsics.cpp.o
[1624/5596] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/LoopStrengthReduce.cpp.o
[1625/5596] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/SimpleLoopUnswitch.cpp.o
[1626/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlan.cpp.o
[1627/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOModule.cpp.o
[1628/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/VPlanRecipes.cpp.o
[1629/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOCodeGenerator.cpp.o
[1630/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o
[1631/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/ThinLTOCodeGenerator.cpp.o
[1632/5596] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o
[1633/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o
[1634/5596] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SLPVectorizer.cpp.o
ninja: build stopped: subcommand failed.
How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild
program finished with exit code 2
elapsedTime=205.561742
```
</details>
https://github.com/llvm/llvm-project/pull/145232
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