| Issue |
176079
|
| Summary |
[clang][bytecode] crash on __builtin_object_size
|
| Labels |
crash-on-valid,
clang:bytecode
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/aK3b9Mb4W
```cpp
void foo() {
struct A {
int a;
};
struct B {
int b;
};
struct C : A, B {};
C c;
int i = __builtin_object_size((B *)&c, 3);
}
```
Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ByteCode/InterpBuiltin.cpp:2358: bool clang::interp::interp__builtin_object_size(clang::interp::InterpState&, clang::interp::CodePtr, const clang::interp::InterpFrame*, const clang::CallExpr*): Assertion `ByteOffset <= *FullSize' 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 -fexperimental-new-constant-interpreter <source>
1. <source>:12:44: current parser token ';'
2. <source>:1:12: parsing function body 'foo'
3. <source>:1:12: in compound statement ('{}')
#0 0x0000000004303798 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4303798)
#1 0x0000000004300bf4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4300bf4)
#2 0x0000000004242e28 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007314e2842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007314e28969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007314e2842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007314e28287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007314e282871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007314e2839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007f48487 clang::interp::interp__builtin_object_size(clang::interp::InterpState&, clang::interp::CodePtr, clang::interp::InterpFrame const*, clang::CallExpr const*) (.isra.0) InterpBuiltin.cpp:0:0
#10 0x0000000007f4a115 clang::interp::InterpretBuiltin(clang::interp::InterpState&, clang::interp::CodePtr, clang::CallExpr const*, unsigned int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7f4a115)
#11 0x0000000008269e7c clang::interp::Compiler<clang::interp::EvalEmitter>::VisitBuiltinCallExpr(clang::CallExpr const*, unsigned int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8269e7c)
#12 0x000000000826a38e clang::interp::Compiler<clang::interp::EvalEmitter>::VisitCallExpr(clang::CallExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x826a38e)
#13 0x0000000008271a6a clang::interp::Compiler<clang::interp::EvalEmitter>::visit(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8271a6a)
#14 0x0000000008265c36 clang::interp::Compiler<clang::interp::EvalEmitter>::visitExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8265c36)
#15 0x0000000007df76cd clang::interp::EvalEmitter::interpretExpr(clang::Expr const*, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7df76cd)
#16 0x0000000007de7993 clang::interp::Context::evaluateAsRValue(clang::interp::State&, clang::Expr const*, clang::APValue&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7de7993)
#17 0x0000000007d4bfb3 EvaluateAsRValue((anonymous namespace)::EvalInfo&, clang::Expr const*, clang::APValue&) ExprConstant.cpp:0:0
#18 0x0000000007d51377 clang::Expr::EvaluateAsRValue(clang::Expr::EvalResult&, clang::ASTContext const&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7d51377)
#19 0x0000000006c920cb TryGetExprRange(clang::ASTContext&, clang::Expr const*, unsigned int, bool, bool) SemaChecking.cpp:0:0
#20 0x0000000006cd2166 clang::Sema::CheckImplicitConversion(clang::Expr*, clang::QualType, clang::SourceLocation, bool*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cd2166)
#21 0x0000000006cd6079 AnalyzeImplicitConversions(clang::Sema&, clang::Expr*, clang::SourceLocation, bool) (.constprop.0) SemaChecking.cpp:0:0
#22 0x0000000006cd7e45 clang::Sema::CheckCompletedExpr(clang::Expr*, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cd7e45)
#23 0x0000000007080307 clang::Sema::ActOnFinishFullExpr(clang::Expr*, clang::SourceLocation, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7080307)
#24 0x0000000006e3d3c5 clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e3d3c5)
#25 0x0000000006a8be81 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a8be81)
#26 0x0000000006a990aa 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+++0x6a990aa)
#27 0x0000000006aa1dbf clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6aa1dbf)
#28 0x0000000006aa228c clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6aa228c)
#29 0x0000000006b537d4 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::LabelDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6b537d4)
#30 0x0000000006b54066 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::LabelDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6b54066)
#31 0x0000000006b5c9ae clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6b5c9ae)
#32 0x0000000006b5d1fa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6b5d1fa)
#33 0x0000000006a6364b clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a6364b)
#34 0x0000000006a99abd 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+++0x6a99abd)
#35 0x0000000006a567ab clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a567ab)
#36 0x0000000006a56f9f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a56f9f)
#37 0x0000000006a5edca clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a5edca)
#38 0x0000000006a5fd65 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a5fd65)
#39 0x0000000006a60210 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a60210)
#40 0x0000000006a40db3 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a40db3)
#41 0x0000000004c6b818 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c6b818)
#42 0x0000000004f65025 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f65025)
#43 0x0000000004ee4d3e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ee4d3e)
#44 0x000000000505f8bd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x505f8bd)
#45 0x0000000000dd001e cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdd001e)
#46 0x0000000000dc69ea ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#47 0x0000000000dc6b6d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#48 0x0000000004cdea09 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
#49 0x00000000042432c4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42432c4)
#50 0x0000000004cdf01f 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
#51 0x0000000004c9f9f2 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c9f9f2)
#52 0x0000000004ca099e 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+++0x4ca099e)
#53 0x0000000004ca7de5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca7de5)
#54 0x0000000000dcc391 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdcc391)
#55 0x0000000000c89af4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc89af4)
#56 0x00007314e2829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#57 0x00007314e2829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#58 0x0000000000dc6485 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdc6485)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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