[clang] [Clang] skip default argument instantiation for non-defining friend declarations without specialization info to meet [dcl.fct.default] p4 (PR #113777)

Thu Nov 7 16:46:37 PST 2024

alanzhao1 wrote:

For posterity, here's the entire stacktrace I got:

```
/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang++ -MMD -MF obj/third_party/dawn/src/dawn/tests/dawn_unittests/CacheRequestTests.o.d -DUSE_UDEV -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_OZONE=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -DCR_LIBCXX_REVISION=8e31ad42561900383e10dbefc1d3e8f38cedfbe9 -DTMP_REBUILD_HACK -DCR_SYSROOT_KEY=20230611T210420Z-2 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DDAWN_ABORT_ON_ASSERT -DDAWN_ENABLE_BACKEND_NULL -DDAWN_ENABLE_BACKEND_OPENGL -DDAWN_ENABLE_BACKEND_DESKTOP_GL -DDAWN_ENABLE_BACKEND_OPENGLES -DDAWN_ENABLE_BACKEND_VULKAN -DDAWN_USE_X11 -DTINT_BUILD_SPV_READER=0 -DTINT_BUILD_SPV_WRITER=1 -DTINT_BUILD_WGSL_READER=1 -DTINT_BUILD_WGSL_WRITER=1 -DTINT_BUILD_MSL_WRITER=1 -DTINT_BUILD_HLSL_WRITER=1 -DTINT_BUILD_GLSL_WRITER=1 -DTINT_BUILD_GLSL_VALIDATOR=1 -DTINT_BUILD_SYNTAX_TREE_WRITER=0 -DTINT_BUILD_IR_BINARY=1 -DTINT_BUILD_IR_FUZZER=0 -DTINT_BUILD_IS_WIN=0 -DTINT_BUILD_IS_MAC=0 -DTINT_BUILD_IS_LINUX=1 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_56 -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_56 -DBENCHMARK_STATIC_DEFINE -DCR_CXX_INCLUDE=\"third_party/rust/chromium_crates_io/vendor/cxx-1.0.129/include/cxx.h\" -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DUSE_CHROMIUM_ICU=1 -DU_ENABLE_TRACING=1 -DU_ENABLE_RESOURCE_TRACING=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DGTEST_API_= -DGTEST_HAS_POSIX_RE=0 -DGTEST_LANG_CXX11=1 -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_HAS_ABSL -DGTEST_NO_ABSL_FLAGS -DUNIT_TEST -DVK_USE_PLATFORM_XCB_KHR -DVK_USE_PLATFORM_WAYLAND_KHR -I../.. -Igen -I../../buildtools/third_party/libc++ -Igen/third_party/dawn/src -I../../third_party/dawn/src -I../../third_party/dawn -I../../third_party/dawn/include -Igen/third_party/dawn -I../../third_party/perfetto/include -Igen/third_party/perfetto/build_config -Igen/third_party/perfetto -I../../third_party/google_benchmark/src/include -Igen/third_party/dawn/include -I../../base/allocator/partition_allocator/src -Igen/base/allocator/partition_allocator/src -I../../third_party/abseil-cpp -I../../third_party/boringssl/src/include -I../../third_party/protobuf/src -I../../third_party/ced/src -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/googletest/custom -I../../third_party/googletest/src/googlemock/include -I../../third_party/googletest/src/googletest/include -I../../third_party/re2/src -I../../third_party/vulkan-headers/src/include -I../../third_party/wayland/src/src -I../../third_party/wayland/include/src -I../../third_party/dawn/third_party/khronos/EGL-Registry/api -Wall -Wextra -Wimplicit-fallthrough -Wextra-semi -Wunreachable-code-aggressive -Wthread-safety -Wgnu -Wno-gnu-anonymous-struct -Wno-gnu-conditional-omitted-operand -Wno-gnu-include-next -Wno-gnu-label-as-value -Wno-gnu-redeclared-enum -Wno-gnu-statement-expression -Wno-gnu-zero-variadic-macro-arguments -Wno-zero-length-array -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi -Wloop-analysis -Wno-unneeded-internal-declaration -Wno-cast-function-type -Wno-thread-safety-reference-return -Wshadow -Werror -fno-delete-null-pointer-checks -fno-ident -fno-strict-aliasing -fstack-protector -funwind-tables -fPIC -pthread -fcolor-diagnostics -fmerge-all-constants -fno-sized-deallocation -fcrash-diagnostics-dir=../../tools/clang/crashreports -mllvm -instcombine-lower-dbg-declare=0 -mllvm -split-threshold-for-reg-with-hint=0 -ffp-contract=off -Wa,--crel,--allow-experimental-crel -fcomplete-member-pointers -m64 -msse3 -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -ffile-compilation-dir=. -no-canonical-prefixes -ftrivial-auto-var-init=pattern -O2 -fdata-sections -ffunction-sections -fno-unique-section-names -fno-math-errno -fno-omit-frame-pointer -g0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -isystem../../build/linux/debian_bullseye_amd64-sysroot/usr/include/glib-2.0 -isystem../../build/linux/debian_bullseye_amd64-sysroot/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPROTOBUF_ALLOW_DEPRECATED=1 -Wno-inconsistent-missing-override -Wno-redundant-parens -Wno-invalid-offsetof -Wenum-compare-conditional -Wno-c++11-narrowing-const-reference -Wno-missing-template-arg-list-after-template-kw -Wno-dangling-assignment-gsl -Wno-nontrivial-memaccess -std=c++20 -Wno-trigraphs -gsimple-template-names -fno-exceptions -fno-rtti -nostdinc++ -isystem../../third_party/libc++/src/include -isystem../../third_party/libc++abi/src/include --sysroot=../../build/linux/debian_bullseye_amd64-sysroot -fvisibility-inlines-hidden -c ../../third_party/dawn/src/dawn/tests/unittests/native/CacheRequestTests.cpp -o obj/third_party/dawn/src/dawn/tests/dawn_unittests/CacheRequestTests.o
clang++: /usr/local/google/home/ayzhao/src/llvm-project/clang/lib/AST/ASTContext.cpp:2398: TypeInfo clang::ASTContext::getTypeInfoImpl(const Type *) const: Assertion `!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments: /usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang++ -MMD -MF obj/third_party/dawn/src/dawn/tests/dawn_unittests/CacheRequestTests.o.d -DUSE_UDEV -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_OZONE=1 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -DCR_LIBCXX_REVISION=8e31ad42561900383e10dbefc1d3e8f38cedfbe9 -DTMP_REBUILD_HACK -DCR_SYSROOT_KEY=20230611T210420Z-2 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DDAWN_ABORT_ON_ASSERT -DDAWN_ENABLE_BACKEND_NULL -DDAWN_ENABLE_BACKEND_OPENGL -DDAWN_ENABLE_BACKEND_DESKTOP_GL -DDAWN_ENABLE_BACKEND_OPENGLES -DDAWN_ENABLE_BACKEND_VULKAN -DDAWN_USE_X11 -DTINT_BUILD_SPV_READER=0 -DTINT_BUILD_SPV_WRITER=1 -DTINT_BUILD_WGSL_READER=1 -DTINT_BUILD_WGSL_WRITER=1 -DTINT_BUILD_MSL_WRITER=1 -DTINT_BUILD_HLSL_WRITER=1 -DTINT_BUILD_GLSL_WRITER=1 -DTINT_BUILD_GLSL_VALIDATOR=1 -DTINT_BUILD_SYNTAX_TREE_WRITER=0 -DTINT_BUILD_IR_BINARY=1 -DTINT_BUILD_IR_FUZZER=0 -DTINT_BUILD_IS_WIN=0 -DTINT_BUILD_IS_MAC=0 -DTINT_BUILD_IS_LINUX=1 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_56 -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_56 -DBENCHMARK_STATIC_DEFINE -DCR_CXX_INCLUDE=\"third_party/rust/chromium_crates_io/vendor/cxx-1.0.129/include/cxx.h\" -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DUSE_CHROMIUM_ICU=1 -DU_ENABLE_TRACING=1 -DU_ENABLE_RESOURCE_TRACING=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DGTEST_API_= -DGTEST_HAS_POSIX_RE=0 -DGTEST_LANG_CXX11=1 -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_HAS_ABSL -DGTEST_NO_ABSL_FLAGS -DUNIT_TEST -DVK_USE_PLATFORM_XCB_KHR -DVK_USE_PLATFORM_WAYLAND_KHR -I../.. -Igen -I../../buildtools/third_party/libc++ -Igen/third_party/dawn/src -I../../third_party/dawn/src -I../../third_party/dawn -I../../third_party/dawn/include -Igen/third_party/dawn -I../../third_party/perfetto/include -Igen/third_party/perfetto/build_config -Igen/third_party/perfetto -I../../third_party/google_benchmark/src/include -Igen/third_party/dawn/include -I../../base/allocator/partition_allocator/src -Igen/base/allocator/partition_allocator/src -I../../third_party/abseil-cpp -I../../third_party/boringssl/src/include -I../../third_party/protobuf/src -I../../third_party/ced/src -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/googletest/custom -I../../third_party/googletest/src/googlemock/include -I../../third_party/googletest/src/googletest/include -I../../third_party/re2/src -I../../third_party/vulkan-headers/src/include -I../../third_party/wayland/src/src -I../../third_party/wayland/include/src -I../../third_party/dawn/third_party/khronos/EGL-Registry/api -Wall -Wextra -Wimplicit-fallthrough -Wextra-semi -Wunreachable-code-aggressive -Wthread-safety -Wgnu -Wno-gnu-anonymous-struct -Wno-gnu-conditional-omitted-operand -Wno-gnu-include-next -Wno-gnu-label-as-value -Wno-gnu-redeclared-enum -Wno-gnu-statement-expression -Wno-gnu-zero-variadic-macro-arguments -Wno-zero-length-array -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi -Wloop-analysis -Wno-unneeded-internal-declaration -Wno-cast-function-type -Wno-thread-safety-reference-return -Wshadow -Werror -fno-delete-null-pointer-checks -fno-ident -fno-strict-aliasing -fstack-protector -funwind-tables -fPIC -pthread -fcolor-diagnostics -fmerge-all-constants -fno-sized-deallocation -fcrash-diagnostics-dir=../../tools/clang/crashreports -mllvm -instcombine-lower-dbg-declare=0 -mllvm -split-threshold-for-reg-with-hint=0 -ffp-contract=off -Wa,--crel,--allow-experimental-crel -fcomplete-member-pointers -m64 -msse3 -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -ffile-compilation-dir=. -no-canonical-prefixes -ftrivial-auto-var-init=pattern -O2 -fdata-sections -ffunction-sections -fno-unique-section-names -fno-math-errno -fno-omit-frame-pointer -g0 -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -isystem../../build/linux/debian_bullseye_amd64-sysroot/usr/include/glib-2.0 -isystem../../build/linux/debian_bullseye_amd64-sysroot/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPROTOBUF_ALLOW_DEPRECATED=1 -Wno-inconsistent-missing-override -Wno-redundant-parens -Wno-invalid-offsetof -Wenum-compare-conditional -Wno-c++11-narrowing-const-reference -Wno-missing-template-arg-list-after-template-kw -Wno-dangling-assignment-gsl -Wno-nontrivial-memaccess -std=c++20 -Wno-trigraphs -gsimple-template-names -fno-exceptions -fno-rtti -nostdinc++ -isystem../../third_party/libc++/src/include -isystem../../third_party/libc++abi/src/include --sysroot=../../build/linux/debian_bullseye_amd64-sysroot -fvisibility-inlines-hidden -c ../../third_party/dawn/src/dawn/tests/unittests/native/CacheRequestTests.cpp -o obj/third_party/dawn/src/dawn/tests/dawn_unittests/CacheRequestTests.o
1.      <eof> parser at end of file
2.      Per-file LLVM IR generation
3.      ../../third_party/dawn/src/dawn/tests/unittests/native/CacheRequestTests.cpp:76:1 <Spelling=../../third_party/googletest/src/googletest/include/gtest/internal/gtest-internal.h:1519:60>: Generating code for declaration 'dawn::native::(anonymous namespace)::CacheRequestTests_CacheResultTypes_Test::TestBody'
 #0 0x0000565135d3a488 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x503c488)
 #1 0x0000565135d3803e llvm::sys::RunSignalHandlers() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x503a03e)
 #2 0x0000565135ca8ab6 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007fb049e591a0 (/lib/x86_64-linux-gnu/libc.so.6+0x3d1a0)
 #4 0x00007fb049ea70ec __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
 #5 0x00007fb049e59102 gsignal ./signal/../sysdeps/posix/raise.c:27:6
 #6 0x00007fb049e424f2 abort ./stdlib/abort.c:81:7
 #7 0x00007fb049e42415 _nl_load_domain ./intl/loadmsgcat.c:1177:9
 #8 0x00007fb049e51d32 (/lib/x86_64-linux-gnu/libc.so.6+0x35d32)
 #9 0x00005651395a6220 clang::ASTContext::getTypeInfoImpl(clang::Type const*) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x88a8220)
#10 0x00005651395a8150 clang::ASTContext::getTypeInfo(clang::Type const*) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x88aa150)
#11 0x00005651395a76db clang::ASTContext::getPreferredTypeAlign(clang::Type const*) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x88a96db)
#12 0x00005651395a57f7 clang::ASTContext::getDeclAlign(clang::Decl const*, bool) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x88a77f7)
#13 0x000056513614f754 clang::CodeGen::CodeGenFunction::EmitAutoVarAlloca(clang::VarDecl const&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5451754)
#14 0x000056513614ba2e clang::CodeGen::CodeGenFunction::EmitVarDecl(clang::VarDecl const&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x544da2e)
#15 0x000056513614b4b7 clang::CodeGen::CodeGenFunction::EmitDecl(clang::Decl const&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x544d4b7)
#16 0x00005651360d578b clang::CodeGen::CodeGenFunction::EmitDeclStmt(clang::DeclStmt const&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x53d778b)
#17 0x00005651360c8aed clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x53caaed)
#18 0x00005651360c7dee clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x53c9dee)
#19 0x00005651360d6b70 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x53d8b70)
#20 0x00005651360b1e72 clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x53b3e72)
#21 0x0000565135f6e870 clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5270870)
#22 0x0000565135f66332 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5268332)
#23 0x0000565135f5759f clang::CodeGen::CodeGenModule::EmitDeferred() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x525959f)
#24 0x0000565135f575cb clang::CodeGen::CodeGenModule::EmitDeferred() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x52595cb)
#25 0x0000565135f575cb clang::CodeGen::CodeGenModule::EmitDeferred() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x52595cb)
#26 0x0000565135f575cb clang::CodeGen::CodeGenModule::EmitDeferred() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x52595cb)
#27 0x0000565135f575cb clang::CodeGen::CodeGenModule::EmitDeferred() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x52595cb)
#28 0x0000565135f575cb clang::CodeGen::CodeGenModule::EmitDeferred() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x52595cb)
#29 0x0000565135f543fa clang::CodeGen::CodeGenModule::Release() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x52563fa)
#30 0x00005651365b3928 (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
#31 0x00005651365abb3e clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x58adb3e)
#32 0x000056513859d599 clang::ParseAST(clang::Sema&, bool, bool) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x789f599)
#33 0x0000565136a3c64f clang::FrontendAction::Execute() (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5d3e64f)
#34 0x00005651369ae10d clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5cb010d)
#35 0x0000565136b25c37 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5e27c37)
#36 0x00005651344b5a5e cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x37b7a5e)
#37 0x00005651344b1ffe ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#38 0x0000565136800249 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::$_0>(long) Job.cpp:0:0
#39 0x0000565135ca87f6 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x4faa7f6)
#40 0x00005651367ff922 clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5b01922)
#41 0x00005651367bee1c clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5ac0e1c)
#42 0x00005651367bf127 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5ac1127)
#43 0x00005651367dc818 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x5ade818)
#44 0x00005651344b1641 clang_main(int, char**, llvm::ToolContext const&) (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x37b3641)
#45 0x00005651344c1927 main (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x37c3927)
#46 0x00007fb049e43b8a __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3
#47 0x00007fb049e43c45 call_init ./csu/../csu/libc-start.c:128:20
#48 0x00007fb049e43c45 __libc_start_main ./csu/../csu/libc-start.c:347:5
#49 0x00005651344afbe1 _start (/usr/local/google/home/ayzhao/src/llvm-project/build/bin/clang+++0x37b1be1)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
clang version 20.0.0git (git at github.com:llvm/llvm-project.git e8b70e97447dc0d93a277b0373345d3a1bae1aa9)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/google/home/ayzhao/src/llvm-project/build/bin
Build config: +assertions
clang++: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang++: note: diagnostic msg: ../../tools/clang/crashreports/CacheRequestTests-732518.cpp
clang++: note: diagnostic msg: ../../tools/clang/crashreports/CacheRequestTests-732518.sh
clang++: note: diagnostic msg:

********************
ninja: build stopped: subcommand failed.
```

https://github.com/llvm/llvm-project/pull/113777