<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/138824>138824</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Clang crashes when capturing the same variable by copy and reference in a lambda since clang 18
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          mariete1223
      </td>
    </tr>
</table>

<pre>
    Defining a lambda that attempts to capture the same local variable both by copy and by reference (e.g., [a, &a]) results in an Internal Compiler Error (ICE) in Clang trunk with assertions enabled.

## Assertion

```
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ExprConstant.cpp:16699: bool EvaluateInPlace(clang::APValue&, {anonymous}::EvalInfo&, const {anonymous}::LValue&, const clang::Expr*, bool): Assertion `!E->isValueDependent()' failed.
```

## Stack dump

```
Stack dump:
0.      Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -gdwarf-4 -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 -x c++ <source>
1.      <source>:7:2: current parser token ';'
2.      <source>:3:1: parsing function body 'main'
3.      <source>:3:1: in compound statement ('{}')
 #0 0x0000000003f76d78 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f76d78)
 #1 0x0000000003f74a04 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f74a04)
 #2 0x0000000003eb98c8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007ce594a42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007ce594a969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007ce594a42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007ce594a287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00007ce594a2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x00007ce594a39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x0000000007892fe7 EvaluateInPlace(clang::APValue&, (anonymous namespace)::EvalInfo&, (anonymous namespace)::LValue const&, clang::Expr const*, bool) ExprConstant.cpp:0:0
#10 0x00000000078d04df clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::RecordExprEvaluator, bool>::Visit(clang::Stmt const*) ExprConstant.cpp:0:0
#11 0x00000000078d1208 EvaluateRecord(clang::Expr const*, (anonymous namespace)::LValue const&, clang::APValue&, (anonymous namespace)::EvalInfo&) ExprConstant.cpp:0:0
#12 0x0000000007892f51 EvaluateInPlace(clang::APValue&, (anonymous namespace)::EvalInfo&, (anonymous namespace)::LValue const&, clang::Expr const*, bool) ExprConstant.cpp:0:0
#13 0x00000000078d6860 clang::Expr::EvaluateAsInitializer(clang::APValue&, clang::ASTContext const&, clang::VarDecl const*, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x78d6860)
#14 0x00000000076f3f42 clang::VarDecl::evaluateValueImpl(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x76f3f42)
#15 0x00000000076f42f1 clang::VarDecl::checkForConstantInitialization(llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x76f42f1)
#16 0x0000000006998b8b clang::Sema::CheckCompleteVariableDeclaration(clang::VarDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6998b8b)
#17 0x000000000699fd02 clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x699fd02)
#18 0x0000000006620d3a clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6620d3a)
#19 0x00000000066305b9 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+++0x66305b9)
#20 0x0000000006639277 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+++0x6639277)
#21 0x0000000006639739 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6639739)
#22 0x00000000066e9d62 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66e9d62)
#23 0x00000000066eaa6d clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66eaa6d)
#24 0x00000000066f2783 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66f2783)
#25 0x00000000066f2f4a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66f2f4a)
#26 0x00000000065fa913 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65fa913)
#27 0x0000000006630fbd 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+++0x6630fbd)
#28 0x00000000065ee44e clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ee44e)
#29 0x00000000065eec09 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65eec09)
#30 0x00000000065f652a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f652a)
#31 0x00000000065f74cd clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f74cd)
#32 0x00000000065e98aa clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65e98aa)
#33 0x0000000004918f78 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4918f78)
#34 0x0000000004c0c235 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c0c235)
#35 0x0000000004b8b83e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b8b83e)
#36 0x0000000004d000e9 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d000e9)
#37 0x0000000000da766f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda766f)
#38 0x0000000000d9d83a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#39 0x000000000497f839 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
#40 0x0000000003eb9d64 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3eb9d64)
#41 0x000000000497fe4f 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
#42 0x000000000494229d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x494229d)
#43 0x000000000494332e 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+++0x494332e)
#44 0x000000000494b185 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x494b185)
#45 0x0000000000da35d8 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda35d8)
#46 0x0000000000c28a64 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc28a64)
#47 0x00007ce594a29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#48 0x00007ce594a29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#49 0x0000000000d9d2e5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xd9d2e5)
```

## Program

```
#include <iostream>
int main()
{
int a = 1000;
static auto f =
[a, &a] {
};
}
```

## To quickly reproduce

Happens since version 18

https://gcc.godbolt.org/z/WKehz5bda


</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzsW0tz27iy_jX0BiUVCVJ8LLyQZWvGc3MrqdiVu1SBYFPCNQlwANCx59efAkiKDz0cz1g5U3NOSkkkAmh8_XWj0SSaRCm25QDXzuLGWdxekVrvhLwuiWSgwcPYv0pF9np9CznjjG8RQQUp04wgvSMaEa2hrLRCWiBKKl1LQHoHSJESUCEoKdAzkYykBaBU6B1KXxEV1SsiPDPfJeQggVNADo5hvp07eIWcxQ2x_-OQOItbBydIgqoLrRDjiHB0zzVITgq0EmXFCpDoTkohjYz71Z3pzzhaFYRvkZY1f0Lfmd4hohRIzQRXCLhBlM0dd2k-2Hewj5Zde3s1dNuPu6RGloNvzMdfIgevpRDaweuieC5nlRT_D7T76eC1FqJQDl63w9YFSx28Xj48Onh991LJleBKE67ntKocf-mFYZIYuakQBbp7JkVNNNzzLwWh4OC4EeMvHX-5_PKNFDU4OLQERTeEC_5ailo50W3TxYy_57lo-1Az1_Gen4aymn6DqQxQBy9Nm8HlYAtxTxIyzGDvbub4d0xZSbdQAc-AawfHpjuOUE5Yx_OAzp7zB03oE8rqsjokfdDmmzZ37rjJFym2kpSIyG1dAteqtYeoDP-09YcZvFSFkCA7I8x648-sSzh4nTLe28iYFs222Xci81mAZls0E0YuqSojvdZVrecKzUpjYjSbvcThjKhypl65Ji-Of8u4hgLNci5mzyBTocC0o9kDms22lM6MT9AdYdzxb8_iNZ0VJ5XaCY1mORWFkLOMkS0XSjOqmjmoJGo3vvyCaKuH46-UqCUFx79z3KVniBtd85eR4y-x4Y7WUgLXqCJSgURaPAFHDo4c_8b86y7xkdG-8Voz2owyUSGvObVeYYKFGV4aTe14_9x4xpHhQNQ8Q0oTDcamyPpP5EQ3xlVxZHzJNVb2XeS-uN0fP4_CLIqRXXTWZdWrar58kYxr6z-PsllDfSdJvm-E0hJI2bo-Mx6bNLN-iCM5-MZ9aeH14L0J-IC4wTHwqwIIr6vP_IFtOSkcHNfcBukMFcJMcQmoBkwPFY-gQprENEYr43JfgYpnkK8Ntl8JzwozY9xyOOqzElzDSxflXPu3ke-38iMKiyQgAV5gt1WqiZUvcbgJg1nBeP0y2_K6aaBzJeahhWyH9ICDscAkTHKKKr2TQLLNEyuK90m343vpiyncIArRVlkK3gs7iMJecDgWjOMo9xFJhdTvE2sH9mKjA7Fe-m6BXtoLjMcC_QSS8H0C7ZBeYDJ0sChOcA7Ru3Y-HO_3M8RJCaqyI5Kje-AbvZt9sNkBu91wvA92bcPdEB3ZyTsfN6vdHauYuUGWD-U-6FJ_Y4ppIW-IAsdf9bGgJE-wsXNuKi1_QAWz5GRmELUkCrmHaiOu4y_tZGNSDYaBbm_q5E108rAb783WYBhPcEDeXzLFn_eBNzXDBw658P5hDulPjBfGoXuQ8O3RGr2X6p4zzUjB_rBB_qT2w4aHxzbun8L_jchboMVIhd71H0pSFN-AaiHvy6owiYPOmqaKMOn4q6H_2pzik6DE5u3jeb4QabDf7nMkuxLuWkAdaW1-_LEbastuE-8M98GI-zD38wAf4aT5AS39lmFLwjB_-WcQ1FDQE7SYEBTg3DtJEN0BfVqLvbPvvbTV8qezdTmWDA89S-GQpTBJ4jROR3sKlKRNIg1F5va4AONIzS24YZDIjqQj7DabwAdr0eLstYgmWuSZi49rscyyQQR6FA3IIfI97IMQOQmOH6-Ugd0rFY-UCrGb-WTiPgrk4PvAGMtcg-x-C7nk2VJrydJagzpUt-l0GFcPZsgeoawKu3_l4lQ0Ho5aC_mV8C0Yzi_kCw0xPW3JmDbfXaTJm7T9IkVdjYn50tyImtaHCuihnj1z7fZ0jIcR7-_j97D_NJpMnfRnM2-53TOP3QnzCY6is-o-MBNNTsaQtwie0nGU3rcNcNijWeE_Tu1bRroE9YbcnnpvSn3kv-30fy_S_w0URv7Ae_GYQkiyEJ_33u7p0mc5jbyjYHs0dZikCbrsPAkHdZ8xnY0VZtCP2ehonHi_jS5gA8tybwN_YgNCwuxP2ODvQvolCDOU9IQFY8JyHMX-WQVW7bPRPXE3Int1cHyppKaB1ANeTAHnwfmkZt0-B54CfjNjO_QVKiq4lCNbRXo1x2n1IieJd94unZrNqdhhWB5kI5fL1j4RDf3K_8TUpTKHhpCermias-Xp-XX_35ztz-dseToIIOObjAVAEMCbzH-WA3ftjk4PLfFX04A3rbmkFJQybSxnho4LeKplpOcrmfJF3R9OtEa0nVzlH87a1ON-DmvU7XOr8SlbuMjDBT4f9e9eGqc6maZeiqlLxDqjbc-FN-EiCuj5WPcoqk_wDMXho4rPFfm9hi96ktjsg-NXyI-mNf3jkP8VWV3AfVkJqe0Oe6H9sVGzJwFPllESk0OHsOUN8RT3-BbtUnlLA6kHPMpMg8SL8ygeAl6JDH4BvrTLu3tkBLTW0F6yBQwfDbMF0sMc5YMBdSn2F0OYa2m2PZ4dwXkhhA2GHuEoAQzSOI19GBPZzHlvH8RSOM7laZUu4r8tzl6LUX4XZK7rQjJ-XGjx9so87xOA-JyyFwlBLb4e_SjdcjMShWGOKPU2TY3F4OZpKSV5tWFkRXdkcEhkwsoKja_hFXoWLLuMEg3KXod4rEOSxT5BHe0r79HGhbOP7Q8VCscHR0bG4clTgjLJnkEenoeNz6CDJMpjP7GUDIR2dS0baVm1rW11U3esSklRpIQ-bXI-DuzNxK3rrLyVKEvCs-kqPmq9_RmFqMzspBidDj9oyfi23S4a0-4HbDb05cXzmh8pUYxulO3eUjjqbC5stCRMq655Io4UhVkKzc142266DB6tL_fHH80QB0dNhaCt3OmownFXu_KbSA-NEbjTipMsHBbHHKsraVq-1vyB5FC8jrg8b7cLVNA0iPcOH3hT54JgdPr_H-cchvF5RaSeu6e9AI9ZCzBOspOsWauRg52xo3IUuicDTYdTt9hnui5_xtFoq3bvSpNkJvB9DO8l5TeRqtOM_CbST0yND-zfc4Rqi79-nMSfdsrcktVTGUyoTL14cQr27eD7KEE4khmcMsFPpPIC2aqlpydvMclD_EXWJtVdJtKBt6FkeVDacWqH_vDcwyDrcY-yP5fimIQBMog_euJGdD_xtAwvyZJ3VjnaIb3AeCoQAhdtNmbMRmki9Wag1g9PAcFgimSaqGFYoEb4h9vJCm-nPlod3hZ7H5aGO9hnnBZ1Bsisma6c11Y7M65R64-t7OimvUyQ498iz3VdxzfXlCaaUURqLVBu2kzv8csHqBlta-a7L6fgPgr0e83oU_GKJFRSZDWFpsOvpKqAK6QYp4CeQSomOPLipnWndWVrf_G6qf-eb0WWikLPhdw6eP2Hg9f_9z-w-2Nhsio75Cq79rPET8gVXHtREIZuGLn4aneN0zhOF3kShzjOSQwYB25K8jjwvSxYuHDFrrGLF-7CjdzY9wI8jwHTLAhxmkAU08B1AhdKwoq5WbgGwRVTqoZrz49jHFwVJIVC2ddFMG5Nip3F7ZW8ti9DpPVWOYFbMKVVL0IzXcB180qGLV0Hhb7vgLcvjTC-7V8b6V8YGbwr0r8ownj_DkrDp0WBvPiqlsX1hEymd3U6p6Ls386YvLNhtVMOXrcKPl_jfwUAAP__UMu2OQ">