| Issue |
175423
|
| Summary |
[Clang] Assertion `!isValueDependent() && "_expression_ evaluator can't be called on a dependent _expression_."` failed since 17.0
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
Xniao
|
***Generated by fuzzer.***
Clang trunk crashed and goes back to 17.0.
Compiler Explorer: https://godbolt.org/z/j14GaeWPr
## Program
```cpp
#include <iostream>
template <int &T> void FuncTemplate() { T; }
template <typename T> struct Container {
static void Execute() {
if (std::is_same_v<T, int>)
;
static int InternalVar;
FuncTemplate<InternalVar>;
}
};
int main() { Container<char>::Execute; }
```
## Stack Dump
```bash
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ExprConstant.cpp:20560: bool clang::Expr::EvaluateAsInt(clang::Expr::EvalResult&, const clang::ASTContext&, clang::Expr::SideEffectsKind, bool) const: Assertion `!isValueDependent() && "_expression_ evaluator can't be called on a dependent _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 -w <source>
1. <eof> parser at end of file
2. Per-file LLVM IR generation
3. <source>:4:15: Generating code for declaration 'Container::Execute'
#0 0x0000000004309158 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4309158)
#1 0x0000000004306584 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4306584)
#2 0x00000000042492d8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000074b121842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000074b1218969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000074b121842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000074b1218287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000074b12182871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000074b121839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000007d505e2 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7d505e2)
#10 0x0000000004884bf2 clang::CodeGen::CodeGenFunction::ConstantFoldsToSimpleInteger(clang::Expr const*, bool&, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4884bf2)
#11 0x000000000481b90c clang::CodeGen::CodeGenFunction::EmitIfStmt(clang::IfStmt const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x481b90c)
#12 0x0000000004814151 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4814151)
#13 0x000000000481c63b clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x481c63b)
#14 0x0000000004884546 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4884546)
#15 0x0000000004895b04 clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4895b04)
#16 0x0000000004903880 clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4903880)
#17 0x00000000048fe4f4 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48fe4f4)
#18 0x000000000490bbac clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490bbac)
#19 0x000000000490bac8 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490bac8)
#20 0x000000000490bac8 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490bac8)
#21 0x000000000490f843 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490f843)
#22 0x0000000004c6de6e (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
#23 0x0000000004c6b885 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c6b885)
#24 0x0000000006a3df1c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a3df1c)
#25 0x0000000004c6c068 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c6c068)
#26 0x0000000004f65455 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f65455)
#27 0x0000000004ee528e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ee528e)
#28 0x000000000505fafd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x505fafd)
#29 0x0000000000de89de cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde89de)
#30 0x0000000000ddf3aa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#31 0x0000000000ddf52d 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
#32 0x0000000004cdf0a9 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
#33 0x0000000004249774 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4249774)
#34 0x0000000004cdf6bf 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
#35 0x0000000004ca0052 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca0052)
#36 0x0000000004ca0ffe 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+++0x4ca0ffe)
#37 0x0000000004ca8455 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca8455)
#38 0x0000000000de4d51 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde4d51)
#39 0x0000000000c8f044 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc8f044)
#40 0x000074b121829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#41 0x000074b121829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#42 0x0000000000ddee45 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xddee45)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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