From https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/ToTAndroid%20x64/1451


Running it locally, it looks more like it's in an infinite loop. I had it running for 5 minutes or so. Perhaps if I'd left it, it would hit the assert.


FAILED: android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.o 
../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.o.d -DV8_DEPRECATION_WARNINGS -DDCHECK_ALWAYS_ON=1 -DNO_TCMALLOC -DSAFE_BROWSING_DB_REMOTE -DCHROMIUM_BUILD -DFIELDTRIAL_TESTING_ENABLED -D_GNU_SOURCE -DANDROID -DHAVE_SYS_UIO_H -DANDROID_NDK_VERSION_ROLL=r16_1 -DCR_CLANG_REVISION=\"348526\" -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -DCOMPONENT_BUILD -D__GNU_SOURCE=1 -DCHROMIUM_CXX_TWEAK_INLINES -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DBLINK_CORE_IMPLEMENTATION=1 -DWEBP_EXTERN=extern -DANGLE_ENABLE_RELEASE_ASSERTS -DUSE_EGL -DVK_NO_PROTOTYPES -DBLINK_IMPLEMENTATION=1 -DINSIDE_BLINK -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DUSE_CHROMIUM_ICU=1 -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DUCHAR_TYPE=uint16_t -DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -DHAVE_PTHREAD -DPROTOBUF_USE_DLLS -DBORINGSSL_SHARED_LIBRARY -DWEBRTC_NON_STATIC_TRACE_EVENT_HANDLERS=0 -DWEBRTC_CHROMIUM_BUILD -DWEBRTC_POSIX -DWEBRTC_LINUX -DWEBRTC_ANDROID -DABSL_ALLOCATOR_NOTHROW=1 -DNO_MAIN_THREAD_WRAPPING -DSK_HAS_PNG_LIBRARY -DSK_HAS_WEBP_LIBRARY -DSK_HAS_JPEG_LIBRARY -DSK_VULKAN_HEADER=\"../../skia/config/SkVulkanConfig.h\" -DSK_VULKAN=1 -DSKIA_DLL -DGR_GL_IGNORE_ES3_MSAA=0 -DSKCMS_API=__attribute__\(\(visibility\(\"default\"\)\)\) -DSK_SUPPORT_GPU=1 -DSK_GPU_WORKAROUNDS_HEADER=\"gpu/config/gpu_driver_bug_workaround_autogen.h\" -DSK_BUILD_FOR_ANDROID -DUSE_CHROMIUM_SKIA -DVK_NO_PROTOTYPES -DUSING_V8_SHARED -DV8_DEPRECATION_WARNINGS -DWTF_USE_LOW_QUALITY_IMAGE_INTERPOLATION=1 -DWTF_USE_WEBAUDIO_OPENMAX_DL_FFT=1 -DUSE_LIBJPEG_TURBO=1 -DUSING_V8_SHARED -DV8_DEPRECATION_WARNINGS -DLIBXSLT_STATIC -I../.. -Iandroid_clang_x86/gen -I../../third_party/libyuv/include -I../../third_party/libwebp/src -I../../third_party/khronos -I../../gpu -I../../third_party/vulkan/include -I../../third_party/openmax_dl -I../../third_party/ced/src -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/protobuf/src -I../../third_party/protobuf/src -Iandroid_clang_x86/gen/protoc_out -I../../third_party/boringssl/src/include -I../../third_party/webrtc_overrides -I../../third_party/webrtc -I../../third_party/abseil-cpp -I../../skia/config -I../../skia/ext -I../../third_party/skia/include/c -I../../third_party/skia/include/config -I../../third_party/skia/include/core -I../../third_party/skia/include/docs -I../../third_party/skia/include/effects -I../../third_party/skia/include/encode -I../../third_party/skia/include/gpu -I../../third_party/skia/include/pathops -I../../third_party/skia/include/ports -I../../third_party/skia/include/utils -I../../third_party/vulkan/include -I../../third_party/skia/third_party/vulkanmemoryallocator -I../../third_party/skia/include/codec -I../../third_party/skia/src/gpu -I../../third_party/skia/src/sksl -I../../third_party/skia/modules/skottie/include -I../../third_party/vulkan/include -I../../third_party/angle/include -I../../third_party/angle/src/common/third_party/base -Iandroid_clang_x86/gen/angle -I../../v8/include -Iandroid_clang_x86/gen/v8/include -I../../third_party/libjpeg_turbo -I../../third_party/iccjpeg -I../../third_party/libpng -I../../third_party/zlib -I../../third_party/ots/include -I../../v8/include -Iandroid_clang_x86/gen/v8/include -I../../third_party/libxml/src/include -I../../third_party/libxml/linux/include -I../../third_party/libxslt/src -I../../third_party/snappy/src -I../../third_party/snappy/linux -fno-strict-aliasing --param=ssp-buffer-size=4 -fno-stack-protector -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -funwind-tables -fPIC -fcolor-diagnostics -fmerge-all-constants -Xclang -mllvm -Xclang -instcombine-lower-dbg-declare=0 -no-canonical-prefixes -ffunction-sections -fno-short-enums --target=i686-linux-android -isystem../../third_party/android_ndk/sysroot/usr/include/i686-linux-android -D__ANDROID_API__=16 -DHAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC=1 -m32 -msse2 -mfpmath=sse -mmmx -momit-leaf-frame-pointer -Wall -Werror -Wextra -Wimplicit-fallthrough -Wthread-safety -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-null-pointer-arithmetic -Wno-ignored-pragma-optimize -Oz -fno-ident -fdata-sections -ffunction-sections -fno-omit-frame-pointer -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wexit-time-destructors -Wglobal-constructors -g2 -DLIBXML_STATIC= -std=c++14 -fno-exceptions -fno-rtti --sysroot=../../third_party/android_ndk/sysroot -nostdinc++ -isystem../../third_party/android_ndk/sources/cxx-stl/llvm-libc++/include -isystem../../third_party/android_ndk/sources/cxx-stl/llvm-libc++abi/include -isystem../../third_party/android_ndk/sources/android/support/include -fvisibility-inlines-hidden -c ../../third_party/blink/renderer/core/style/computed_style.cc -o android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.o
clang++: /b/s/w/ir/cache/builder/src/third_party/llvm/include/llvm/ADT/SmallVector.h:68: void llvm::SmallVectorBase::set_size(size_t): Assertion `Size <= capacity()' failed.
Stack dump:
0.	Program arguments: ../../third_party/llvm-build/Release+Asserts/bin/clang++ -cc1 -triple i686-unknown-linux-android -emit-obj -disable-free -main-file-name computed_style.cc -mrelocation-model pic -pic-level 2 -mthread-model posix -fmerge-all-constants -mdisable-fp-elim -relaxed-aliasing -mfpmath sse -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu i686 -target-feature +ssse3 -target-feature +sse2 -target-feature +mmx -dwarf-column-info -debug-info-kind=limited -dwarf-version=4 -debugger-tuning=gdb -momit-leaf-frame-pointer -ffunction-sections -fdata-sections -coverage-notes-file /b/s/w/ir/cache/builder/src/out/Release/android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.gcno -nostdinc++ -resource-dir ../../third_party/llvm-build/Release+Asserts/lib/clang/8.0.0 -dependency-file android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.o.d -MT android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.o -isystem ../../third_party/android_ndk/sysroot/usr/include/i686-linux-android -isystem ../../third_party/android_ndk/sources/cxx-stl/llvm-libc++/include -isystem ../../third_party/android_ndk/sources/cxx-stl/llvm-libc++abi/include -isystem ../../third_party/android_ndk/sources/android/support/include -D V8_DEPRECATION_WARNINGS -D DCHECK_ALWAYS_ON=1 -D NO_TCMALLOC -D SAFE_BROWSING_DB_REMOTE -D CHROMIUM_BUILD -D FIELDTRIAL_TESTING_ENABLED -D _GNU_SOURCE -D ANDROID -D HAVE_SYS_UIO_H -D ANDROID_NDK_VERSION_ROLL=r16_1 -D CR_CLANG_REVISION="348526" -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D _FORTIFY_SOURCE=2 -D COMPONENT_BUILD -D __GNU_SOURCE=1 -D CHROMIUM_CXX_TWEAK_INLINES -D NDEBUG -D NVALGRIND -D DYNAMIC_ANNOTATIONS_ENABLED=0 -D BLINK_CORE_IMPLEMENTATION=1 -D WEBP_EXTERN=extern -D ANGLE_ENABLE_RELEASE_ASSERTS -D USE_EGL -D VK_NO_PROTOTYPES -D BLINK_IMPLEMENTATION=1 -D INSIDE_BLINK -D U_USING_ICU_NAMESPACE=0 -D U_ENABLE_DYLOAD=0 -D USE_CHROMIUM_ICU=1 -D ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -D UCHAR_TYPE=uint16_t -D GOOGLE_PROTOBUF_NO_RTTI -D GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -D HAVE_PTHREAD -D PROTOBUF_USE_DLLS -D BORINGSSL_SHARED_LIBRARY -D WEBRTC_NON_STATIC_TRACE_EVENT_HANDLERS=0 -D WEBRTC_CHROMIUM_BUILD -D WEBRTC_POSIX -D WEBRTC_LINUX -D WEBRTC_ANDROID -D ABSL_ALLOCATOR_NOTHROW=1 -D NO_MAIN_THREAD_WRAPPING -D SK_HAS_PNG_LIBRARY -D SK_HAS_WEBP_LIBRARY -D SK_HAS_JPEG_LIBRARY -D SK_VULKAN_HEADER="../../skia/config/SkVulkanConfig.h" -D SK_VULKAN=1 -D SKIA_DLL -D GR_GL_IGNORE_ES3_MSAA=0 -D SKCMS_API=__attribute__((visibility("default"))) -D SK_SUPPORT_GPU=1 -D SK_GPU_WORKAROUNDS_HEADER="gpu/config/gpu_driver_bug_workaround_autogen.h" -D SK_BUILD_FOR_ANDROID -D USE_CHROMIUM_SKIA -D VK_NO_PROTOTYPES -D USING_V8_SHARED -D V8_DEPRECATION_WARNINGS -D WTF_USE_LOW_QUALITY_IMAGE_INTERPOLATION=1 -D WTF_USE_WEBAUDIO_OPENMAX_DL_FFT=1 -D USE_LIBJPEG_TURBO=1 -D USING_V8_SHARED -D V8_DEPRECATION_WARNINGS -D LIBXSLT_STATIC -I ../.. -I android_clang_x86/gen -I ../../third_party/libyuv/include -I ../../third_party/libwebp/src -I ../../third_party/khronos -I ../../gpu -I ../../third_party/vulkan/include -I ../../third_party/openmax_dl -I ../../third_party/ced/src -I ../../third_party/icu/source/common -I ../../third_party/icu/source/i18n -I ../../third_party/protobuf/src -I ../../third_party/protobuf/src -I android_clang_x86/gen/protoc_out -I ../../third_party/boringssl/src/include -I ../../third_party/webrtc_overrides -I ../../third_party/webrtc -I ../../third_party/abseil-cpp -I ../../skia/config -I ../../skia/ext -I ../../third_party/skia/include/c -I ../../third_party/skia/include/config -I ../../third_party/skia/include/core -I ../../third_party/skia/include/docs -I ../../third_party/skia/include/effects -I ../../third_party/skia/include/encode -I ../../third_party/skia/include/gpu -I ../../third_party/skia/include/pathops -I ../../third_party/skia/include/ports -I ../../third_party/skia/include/utils -I ../../third_party/vulkan/include -I ../../third_party/skia/third_party/vulkanmemoryallocator -I ../../third_party/skia/include/codec -I ../../third_party/skia/src/gpu -I ../../third_party/skia/src/sksl -I ../../third_party/skia/modules/skottie/include -I ../../third_party/vulkan/include -I ../../third_party/angle/include -I ../../third_party/angle/src/common/third_party/base -I android_clang_x86/gen/angle -I ../../v8/include -I android_clang_x86/gen/v8/include -I ../../third_party/libjpeg_turbo -I ../../third_party/iccjpeg -I ../../third_party/libpng -I ../../third_party/zlib -I ../../third_party/ots/include -I ../../v8/include -I android_clang_x86/gen/v8/include -I ../../third_party/libxml/src/include -I ../../third_party/libxml/linux/include -I ../../third_party/libxslt/src -I ../../third_party/snappy/src -I ../../third_party/snappy/linux -D __DATE__= -D __TIME__= -D __TIMESTAMP__= -D __ANDROID_API__=16 -D HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC=1 -D LIBXML_STATIC= -isysroot ../../third_party/android_ndk/sysroot -internal-isystem ../../third_party/android_ndk/sysroot/usr/local/include -internal-isystem ../../third_party/llvm-build/Release+Asserts/lib/clang/8.0.0/include -internal-externc-isystem ../../third_party/android_ndk/sysroot/usr/include/i686-linux-android -internal-externc-isystem ../../third_party/android_ndk/sysroot/include -internal-externc-isystem ../../third_party/android_ndk/sysroot/usr/include -Oz -Wno-builtin-macro-redefined -Wall -Werror -Wextra -Wimplicit-fallthrough -Wthread-safety -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-null-pointer-arithmetic -Wno-ignored-pragma-optimize -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wexit-time-destructors -Wglobal-constructors -std=c++14 -fdeprecated-macro -fdebug-compilation-dir /b/s/w/ir/cache/builder/src/out/Release -ferror-limit 19 -fmessage-length 0 -fvisibility hidden -fvisibility-inlines-hidden -fno-rtti -fobjc-runtime=gcc -Qn -fdiagnostics-show-option -fcolor-diagnostics -vectorize-slp -mllvm -instcombine-lower-dbg-declare=0 -o android_clang_x86/obj/third_party/blink/renderer/core/style/rendering/computed_style.o -x c++ ../../third_party/blink/renderer/core/style/computed_style.cc -faddrsig 
1.	<eof> parser at end of file
2.	Code generation
3.	Running pass 'Function Pass Manager' on module '../../third_party/blink/renderer/core/style/computed_style.cc'.
4.	Running pass 'X86 DAG->DAG Instruction Selection' on function '@_ZNK5blink13ComputedStyle33UpdatePropertySpecificDifferencesERKS0_RNS_15StyleDifferenceE'
#0 0x00000000025b6bba llvm::sys::PrintStackTrace(llvm::raw_ostream&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x25b6bba)
#1 0x00000000025b50d9 llvm::sys::RunSignalHandlers() (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x25b50d9)
#2 0x00000000025b5215 SignalHandler(int) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x25b5215)
#3 0x00007f39fcc01330 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007f39fbc21c37 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x36c37)
#5 0x00007f39fbc25028 abort (/lib/x86_64-linux-gnu/libc.so.6+0x3a028)
#6 0x00007f39fbc1abf6 (/lib/x86_64-linux-gnu/libc.so.6+0x2fbf6)
#7 0x00007f39fbc1aca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000000a14790 llvm::SmallPtrSetImplBase::SmallPtrSetImplBase(void const**, unsigned int) (.part.133) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0xa14790)
#9 0x0000000002d3412d (anonymous namespace)::DAGCombiner::AddToWorklist(llvm::SDNode*) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2d3412d)
#10 0x0000000002d8ddda llvm::SelectionDAG::Combine(llvm::CombineLevel, llvm::AAResults*, llvm::CodeGenOpt::Level) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2d8ddda)
#11 0x0000000002e64941 llvm::SelectionDAGISel::CodeGenAndEmitDAG() (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2e64941)
#12 0x0000000002e6943a llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2e6943a)
#13 0x0000000002e6b0d1 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (.part.1058) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2e6b0d1)
#14 0x000000000188d500 (anonymous namespace)::X86DAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x188d500)
#15 0x0000000001d6c03e llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.88) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x1d6c03e)
#16 0x00000000020b95af llvm::FPPassManager::runOnFunction(llvm::Function&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x20b95af)
#17 0x00000000020b97dc llvm::FPPassManager::runOnModule(llvm::Module&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x20b97dc)
#18 0x00000000020b9ef3 llvm::legacy::PassManagerImpl::run(llvm::Module&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x20b9ef3)
#19 0x000000000276735e (anonymous namespace)::EmitAssemblyHelper::EmitAssembly(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x276735e)
#20 0x00000000027693fb clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x27693fb)
#21 0x0000000002f316eb clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2f316eb)
#22 0x00000000036de94c clang::ParseAST(clang::Sema&, bool, bool) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x36de94c)
#23 0x0000000002f30d0f clang::CodeGenAction::ExecuteAction() (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2f30d0f)
#24 0x0000000002bb52f6 clang::FrontendAction::Execute() (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2bb52f6)
#25 0x0000000002b882be clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2b882be)
#26 0x0000000002c4f57a clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0x2c4f57a)
#27 0x0000000000caff78 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (../../third_party/llvm-build/Release+Asserts/bin/clang+++0xcaff78)
#28 0x0000000000c2b666 main (../../third_party/llvm-build/Release+Asserts/bin/clang+++0xc2b666)
#29 0x00007f39fbc0cf45 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21f45)
#30 0x0000000000caa8d9 _start (../../third_party/llvm-build/Release+Asserts/bin/clang+++0xcaa8d9)
clang++: error: unable to execute command: Aborted (core dumped)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 8.0.0 (trunk 348526)
Target: i686-unknown-linux-android
Thread model: posix
InstalledDir: ../../third_party/llvm-build/Release+Asserts/bin
clang++: note: diagnostic msg: PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
clang++: note: diagnostic msg: 
********************