<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/151711>151711</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [analyzer] crashes on __datasizeof
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang:static analyzer,
            crash
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          k-arrows
      </td>
    </tr>
</table>

<pre>
    Reproducer:
https://godbolt.org/z/h6cETdPEd
```cpp
void f(int i) {
 __datasizeof(int[i++]);
}
```

Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ExprConstant.cpp:17254: llvm::APSInt clang::Expr::EvaluateKnownConstInt(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++ -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 --analyze <source>
1.      <eof> parser at end of file
2.      While analyzing stack: 
        #0 Calling f(int)
3.      <source>:2:3: Error evaluating statement
4.      <source>:2:3: Error evaluating statement
 #0 0x0000000003fdb0d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3fdb0d8)
 #1 0x0000000003fd8504 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3fd8504)
 #2 0x0000000003f1ccf8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x0000791c30042520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x0000791c300969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x0000791c30042476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x0000791c300287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x0000791c3002871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x0000791c30039e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x00000000078d2dee clang::Expr::EvaluateKnownConstInt(clang::ASTContext const&, llvm::SmallVectorImpl<std::pair<clang::SourceLocation, clang::PartialDiagnostic>>*) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x78d2dee)
#10 0x000000000655af7e clang::ento::ExprEngine::VisitUnaryExprOrTypeTraitExpr(clang::UnaryExprOrTypeTraitExpr const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x655af7e)
#11 0x000000000654a9af clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x654a9af)
#12 0x000000000654babd clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x654babd)
#13 0x00000000065009fa clang::ento::CoreEngine::HandleBlockEntrance(clang::BlockEntrance const&, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65009fa)
#14 0x0000000006500f72 clang::ento::CoreEngine::dispatchWorkItem(clang::ento::ExplodedNode*, clang::ProgramPoint, clang::ento::WorkListUnit const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6500f72)
#15 0x0000000006501301 clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6501301)
#16 0x00000000060c83f7 (anonymous namespace)::AnalysisConsumer::HandleCode(clang::Decl*, unsigned int, clang::ento::ExprEngine::InliningModes, llvm::DenseSet<clang::Decl const*, llvm::DenseMapInfo<clang::Decl const*, void>>*) AnalysisConsumer.cpp:0:0
#17 0x00000000060ca02e (anonymous namespace)::AnalysisConsumer::HandleDeclsCallGraph(unsigned int) AnalysisConsumer.cpp:0:0
#18 0x00000000060cba33 (anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) AnalysisConsumer.cpp:0:0
#19 0x00000000066861fc clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66861fc)
#20 0x0000000004c7aa05 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c7aa05)
#21 0x0000000004bf780e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4bf780e)
#22 0x0000000004d6e731 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d6e731)
#23 0x0000000000daa41f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdaa41f)
#24 0x0000000000da106a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#25 0x00000000049eeaa9 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
#26 0x0000000003f1d194 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f1d194)
#27 0x00000000049ef0bf 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
#28 0x00000000049b16ed clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49b16ed)
#29 0x00000000049b277e 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+++0x49b277e)
#30 0x00000000049ba7b5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x49ba7b5)
#31 0x0000000000da68cf clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda68cf)
#32 0x0000000000c5b7d4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc5b7d4)
#33 0x0000791c30029d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#34 0x0000791c30029e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#35 0x0000000000da0b15 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda0b15)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzkWltz67YR_jXwC4YaEKR4efADLUut06TxHDnJowYEQQk1BHAA0EfOr-8ApMyLL7UTO51OM84cScDufvthsbsASYzhe8nYJVhegeX1BWntQenL-4Borb6bi1JVj5ffWKNV1VKmQVQAVBysbYz7iDcAb_aqKpWwC6X3AG9-B3hzSOj6rrpdVwAVIEHdH20agIoHxStYA5xxaSEHOIcgvQKogLtdRSwx_Hem-mGwvOIAX7m_5TXAOYjcRJBej7W6z6i4IvTeakJZh2-wqaRRggFUUEHkvtcWFRDgjVbKArwR4uEYNFr9i9HzV4A3VilhAN70YhvBS4A3xfYO4M361OiVksYSaRfOq6gIU7yMnV4vHhUgKorb7Y20sFPgf3Fy_acHIlpi2T-k-i69qhtpAc4c3IlIsb1bKWnZyQKcALwa6d8eiRC_MmqVvjk2AkQrY6tuqCFcg2g10rNVrabsR0WJ5Uo6RaPBW6ItJ-Kak71UxnIKojUE0Rrgwq2PB-V8K4xh2slDkKBvzLTCQg8rgQDjlWpFBaWykPXeQXZqNDPGW8QAp7AmXLBqAVBx--O62K6hacsjt5DAst1DzRqlLbQKzuKL20NbLqg6DuszWzVuTMvcekEiK8glFW3FoD0wSDUxB1g-xQdewUa7cKbMGFZB45lxPztJYoyinFhWQd1KaKjmjXV4t5bQe1i1x6aLMLQAKL_Vaq_JERK9b49MWtNHlmocJqqODRdMB-zUCKWZPodTQM5EmsDqVt4DvCm5HKLNBSkM9tV3ousghsEeBsrpJU3jtLe2ae3CwODoWIBBcMqSgJhjYB6lJScQXXNpmYBBLVXwwHSpDHPjMNjCINhTGrjopgfCJYiu38TrJhtJGnNQFgY1VULpoHoKFNPZ8BxPfw6IJOLxdwZdXHYUR2uAitDxBqKV2-TRGjZEG6YhsZDJCqoa1tzvVuym_XbggsFOEZd7aNwaeIrdns8BjhBcESHc2Dll4BygIuqNDIajAoOoiJzwWmulzzHaq7XMLR9ARfyHJaGHg07o_F9UVyWqstGONY-m33CaS-sj6q6LyWyYpMn3nTJWM3Lst3znFgQ4-6TQAvgKnXp4HWEOfDgDny1R_BL4lWBEts3Pcsv3kgiAs1b6ElJBoZyJr4DqwAxQ8RRqSGmdwZULwm-MqgemHztsfyeyEs5iHxrTOX1i7TM48v93-qNef5qHNEIoxkuMeqe6OnDKkl0SB4LL9hTsZdsN0IVRi8RD9iID4HiqME_ymsLGHjQj1e6eC_Ex7V5-0L6cw43TBO6Np-CjsOM0GRQnU8U4S-sIktIl6Q-p9YKD2vSZ2rD8sMKwHBRmU4VRzvLkYwq9yKAwHwdYmlW4YuyDlfylGt6X0r-2ks8K-Wdvzp6djjuXRiZJMFkuSZ1OuGPSqoHFtdxzybrvv3LD7S-S6Ec38rO-e2zYnSbceronnL4268xwMSNmYlSoilX_VBV777wt6xbt0zNbT89AXjglLyY5qT9A3pSkrT3a_zlCvMsDIXhGSEnK6n2E3HYtniPhU2j5Cl-dN4Ov0dRXhPKavAxupTQb-9oVuiuh6P1aWk2kbypGopOhSRr6rznv3Rucj-fO1yl-n_MVNw2x9PCb0vc3lh2nnr830Pte_lb5VuEVXpyJH7mxv0g-TuZfwk6d4oGd5YydMELh-9hZnxhtLTsjn5JzLiOz-uS5eerqekKGenUjrW4Nf2DfWL2S9tbOStQApid16_rk8zly_TV8OUYGvpIJX4hmUZ06o0Qq-XhUrYGSHJlpfPed93XaHTQMN66Kt0emx1tr5WNmTN01o-IVpt6Vnm6k4JLL_U-qcgfXMb_XTBqfYiesOoOTBZoJ_ESaG1mr_yD0oHg1aQrmXs_aYUdmOiOTIMz-DJkOlHEHt79p0hzGB4i-TX8HpmyGqSRR9Gcw3WkijfCbwW3u1zq4fru_A-CkhUySLAlrOmvVDPP3SZPaxI6kT8ylUmL49_O3TAfpacvgSd8W05QQtBwD3mhHgawK6hvPcXLx0D4dYY9hQDhpjuKyTjM06SxXvc0bfzVHpwmwhz1he-bSl6TyHufgxaSjiauEpVE4PVt4vIMzD0-9fvaWs19Spnt8A_pJj4IqQuKwhpSGuyNxCkYXGYXW5PEbq11COpBRZ-5SzwpOfztnpi9xokM5-BDPfAhRQuCZ9lV45zdc9tb57LlDsyOd0_H80JfDSvOHl9IFnhT4OGeMkNxTMlJat9IH6k57Vv1ot_W6iyoQFZQIURJ6v6vltBB0hvvQWYUrdTwSWc138Yur93QYVY2zThwBI3Ks5nLvZ677pX0S2O3o6RSG3ZeSGE53xk_vKZxMdj_srDvImfPwTB0Rwm0FpUfjfR07p8nJhbW_QE4FOZYVATgdqMLZ-abqB1W-sBjJ7H6pCvPxVdhLt0jdyLdWbknNxOOEy7fX7SvuyzziIeDTWXDVqJycKv_vgsMxvmiItgv0ehRkU9bKMGHVq6z5VSPPKuOZyknqngm6Ca8dyd6YWkz6hC-63endHkIpn5GC0-ntzntI-UGV5nVGflClO6j84buy5034myT2YfKXUOnIeqJy-rQgzkuSlsvXYF-PPk8ahBc6g9eW4C-k8vP7kI6egbxwVsOTjPYp7dyJnMH7VFI8OzO9VqE_vfdwyAbck-4P0WWZVjF0iD_bcKd6MDx7poHzKv_gMw0vMiiM5wpZjOBu52R2xhJtdyO33m2CxSMTy9kiozJcwk7556-TU96Znr0qwLR2VaXowgvW_aEB0j7-u4fa8Du3B8hO_mKoYjCMYoexNQwGD9AqaBiDfNTMO0vnJh5qZlstmdt-TnL8CsNFdRlVeZSTC3YZpssYJTiM44vDZRnSOE0TSllC0ihNQ8LCKkI4KgkmeYIu-CVGeIkyFIZLnKNoEZMaxUlYxXmM64hkIEbsSLhYuG2xUHp_4Z-jX4bLMA3DC0FKJox_MQTjcxIwllhO-6eyjmkM8MqNu6bIfVteX-hL_3i-bPcGxEhwY81gwnIr_NsmTyqW191TemagkpP3QC5aLS7_-MsAvR8Pl_jfAQAA__-H5ry0">