| Issue |
156186
|
| Summary |
[clang][bytecode] Assertion `Result && "Could not evaluate _expression_"' failed.
|
| Labels |
clang:frontend,
crash,
clang:bytecode
|
| Assignees |
|
| Reporter |
k-arrows
|
The following is a C++ reproducer and crashes with `--std=c++03 -fexperimental-new-constant-interpreter`, but it comes from clang/test/AST/ByteCode/c.c
https://godbolt.org/z/8qj9nP5f6
```cpp
__attribute__((weak)) const unsigned int test10_bound = 10;
char test10_global[test10_bound];
void test10(void) {
char test10_local[test10_bound] = "help";
}
```
Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ExprConstant.cpp:17712: llvm::APSInt clang::Expr::EvaluateKnownConstIntCheckOverflow(const clang::ASTContext&, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic> >*) const: Assertion `Result && "Could not evaluate _expression_"' 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: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics --std=c++03 -fexperimental-new-constant-interpreter <source>
1. <source>:2:33: current parser token ';'
#0 0x000000000404bc38 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x404bc38)
#1 0x0000000004049064 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4049064)
#2 0x0000000003f8d9f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000078489de42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000078489de969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000078489de42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000078489de287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000078489de2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000078489de39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00000000078ff21d clang::Expr::EvaluateKnownConstIntCheckOverflow(clang::ASTContext const&, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>*) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x78ff21d)
#10 0x0000000006be4e47 clang::Sema::VerifyIntegerConstantExpression(clang::Expr*, llvm::APSInt*, clang::Sema::VerifyICEDiagnoser&, clang::AllowFoldKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6be4e47)
#11 0x00000000072b38d5 clang::Sema::BuildArrayType(clang::QualType, clang::ArraySizeModifier, clang::Expr*, unsigned int, clang::SourceRange, clang::DeclarationName) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72b38d5)
#12 0x00000000072d07ee GetFullTypeForDeclarator((anonymous namespace)::TypeProcessingState&, clang::QualType, clang::TypeSourceInfo*) SemaType.cpp:0:0
#13 0x00000000072d62ff clang::Sema::GetTypeForDeclarator(clang::Declarator&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72d62ff)
#14 0x0000000006a839cc clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a839cc)
#15 0x0000000006a84d10 clang::Sema::ActOnDeclarator(clang::Scope*, clang::Declarator&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a84d10)
#16 0x00000000066eac33 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66eac33)
#17 0x00000000066fa0e9 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66fa0e9)
#18 0x00000000066b745e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b745e)
#19 0x00000000066b7bff clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b7bff)
#20 0x00000000066bfa3a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66bfa3a)
#21 0x00000000066c09d5 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66c09d5)
#22 0x00000000066a093a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66a093a)
#23 0x0000000004975908 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4975908)
#24 0x0000000004c6e255 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c6e255)
#25 0x0000000004be988e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4be988e)
#26 0x0000000004d62431 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d62431)
#27 0x0000000000db171f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb171f)
#28 0x0000000000da83ca ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#29 0x00000000049dda49 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::'lambda'()>(long) Job.cpp:0:0
#30 0x0000000003f8de94 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f8de94)
#31 0x00000000049de05f clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#32 0x000000000499f9fd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x499f9fd)
#33 0x00000000049a0a8e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49a0a8e)
#34 0x00000000049a8a25 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49a8a25)
#35 0x0000000000dadbd5 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdadbd5)
#36 0x0000000000c61b34 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc61b34)
#37 0x000078489de29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#38 0x000078489de29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#39 0x0000000000da7e75 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda7e75)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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