| Issue |
181410
|
| Summary |
Assertion `!Init->isValueDependent()` failed
|
| Labels |
c++20,
clang:frontend,
crash
|
| Assignees |
|
| Reporter |
Endilll
|
While reducing #181062, I stumbled upon another crash (https://godbolt.org/z/aEqoxaWcG):
```cpp
template <int>
struct integer_sequence {};
template <int>
struct array {};
template <int*>
struct MetaValuesHelper;
template <typename TupleName, TupleName kValues>
struct MetaValuesHelper<kValues> {
template <int... Is>
static array<stdget<Is>(kValues)...> MetaValuesFunc(integer_sequence<Is...>);
};
int kBaseIndexRegistersUsed;
array<0> u = decltype(MetaValuesHelper<&kBaseIndexRegistersUsed>::MetaValuesFunc(integer_sequence<0>{})){};
```
Clang 23.0 output:
```
<source>:11:8: error: class template partial specialization is not more specialized than the primary template [-Winvalid-partial-specialization]
11 | struct MetaValuesHelper<kValues> {
| ^
<source>:8:8: note: template is declared here
8 | struct MetaValuesHelper;
| ^
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/Decl.cpp:2596:
clang::APValue* clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic> >&, bool) const:
Assertion `!Init->isValueDependent()' 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++20 <source>
1. <eof> parser at end of file
2. <source>:18:10: LLVM IR generation of declaration 'u'
3. <source>:18:10: Generating code for declaration 'u'
#0 0x00000000043cb438 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43cb438)
#1 0x00000000043c8894 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43c8894)
#2 0x0000000004308ba8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007c23a8c42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007c23a8c969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007c23a8c42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007c23a8c287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007c23a8c2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007c23a8c39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007d0c963 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7d0c963)
#10 0x0000000007d0c9ea clang::VarDecl::evaluateValue() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7d0c9ea)
#11 0x000000000479b79b clang::CodeGen::ConstantEmitter::tryEmitPrivateForVarInit(clang::VarDecl const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x479b79b)
#12 0x000000000479bb91 clang::CodeGen::ConstantEmitter::tryEmitForInitializer(clang::VarDecl const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x479bb91)
#13 0x00000000049a2d6c clang::CodeGen::CodeGenModule::EmitGlobalVarDefinition(clang::VarDecl const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49a2d6c)
#14 0x00000000049cb091 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49cb091)
#15 0x00000000049cb8d3 clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49cb8d3)
#16 0x00000000049d6e4b clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0) CodeGenModule.cpp:0:0
#17 0x0000000004d47b49 (anonymous namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef) ModuleBuilder.cpp:0:0
#18 0x0000000004d38f34 clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d38f34)
#19 0x0000000006b69ed4 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6b69ed4)
#20 0x0000000004d458e8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d458e8)
#21 0x00000000050439c5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x50439c5)
#22 0x0000000004fc2cde clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4fc2cde)
#23 0x000000000513f02d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x513f02d)
#24 0x0000000000de86de cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde86de)
#25 0x0000000000ddf0aa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#26 0x0000000000ddf22d 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
#27 0x0000000004db9319 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
#28 0x0000000004309044 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4309044)
#29 0x0000000004db992f 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
#30 0x0000000004d7a322 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d7a322)
#31 0x0000000004d7b2ce 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+++0x4d7b2ce)
#32 0x0000000004d82585 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d82585)
#33 0x0000000000de4a51 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde4a51)
#34 0x0000000000c9e9b4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc9e9b4)
#35 0x00007c23a8c29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#36 0x00007c23a8c29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#37 0x0000000000ddeb45 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xddeb45)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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