<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/63568>63568</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang: Assertion `Value != 0 && "Invalid CPUStr passed to CpuIs"' failed.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

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

<pre>
    The testcase (options: `clang small.c`):
```
__attribute__((target_clones("arch=core-avx2", "arch=slm", "default")))
void foo(void) {}
```

Compiler Explorer: https://gcc.godbolt.org/z/xn6KrTcor

Compiler version:
```
clang version 17.0.0 (https://github.com/llvm/llvm-project.git 12e9c7aaa66b7624b5d7666ce2794d912bf9e4b7)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/compiler-explorer/clang-assertions-trunk/bin
Compiler returned: 0
```

Compiler's assertion message:
```console
clang: /root/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:13186: llvm::Value* clang::CodeGen::CodeGenFunction::EmitX86CpuIs(llvm::StringRef): Assertion `Value != 0 && "Invalid CPUStr passed to CpuIs"' failed.
```

Compiler's backtrace:
```
clang: /root/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:13186: llvm::Value* clang::CodeGen::CodeGenFunction::EmitX86CpuIs(llvm::StringRef): Assertion `Value != 0 && "Invalid CPUStr passed to CpuIs"' 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 -S --gcc-toolchain=/opt/compiler-explorer/gcc-9.2.0 -fcolor-diagnostics -fno-crash-diagnostics <source>
1.      <eof> parser at end of file
2.      Per-file LLVM IR generation
 #0 0x00005611b5b24f2f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3c52f2f)
 #1 0x00005611b5b22c9c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3c50c9c)
 #2 0x00005611b5a6d398 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007f5f5bb25420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
 #4 0x00007f5f5b5f200b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
 #5 0x00007f5f5b5d1859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
 #6 0x00007f5f5b5d1729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
 #7 0x00007f5f5b5e2fd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
 #8 0x00005611b6126096 clang::CodeGen::CodeGenFunction::EmitX86CpuIs(llvm::StringRef) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4254096)
 #9 0x00005611b5eb7ef0 clang::CodeGen::CodeGenFunction::EmitX86MultiVersionResolver(llvm::Function*, llvm::ArrayRef<clang::CodeGen::CodeGenFunction::MultiVersionResolverOption>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe5ef0)
#10 0x00005611b5f34277 clang::CodeGen::CodeGenModule::emitMultiVersionFunctions() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4062277)
#11 0x00005611b5f369a8 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x40649a8)
#12 0x00005611b6da12c2 (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
#13 0x00005611b6d9fce5 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4ecdce5)
#14 0x00005611b829c059 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x63ca059)
#15 0x00005611b6d9e9a8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4ecc9a8)
#16 0x00005611b65e8b79 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4716b79)
#17 0x00005611b656e4c6 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x469c4c6)
#18 0x00005611b66cd2a6 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x47fb2a6)
#19 0x00005611b2fc70ed cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x10f50ed)
#20 0x00005611b2fc2dea ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#21 0x00005611b63cd23d 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
#22 0x00005611b5a6d8a0 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b9b8a0)
#23 0x00005611b63cd85f 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
#24 0x00005611b63949ec clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44c29ec)
#25 0x00005611b639547d 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+0x44c347d)
#26 0x00005611b639d55d clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44cb55d)
#27 0x00005611b2fc534a clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x10f334a)
#28 0x00005611b2ecb5c5 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xff95c5)
#29 0x00007f5f5b5d3083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#30 0x00005611b2fbdbce _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x10ebbce)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzsWU1z2zjS_jXwBSUVCH4ffFBka97Mm6lJxZ7U3lQg0JSxoQAWADrK_votgJRNyHLGmVH2slvlRBIAdj_9dKO7QTBr5U4BXKP8HcpvrtjgHrS5_irBOK2uGi2-Xd8_AHZgHWcWMKKV7p3UyqJ0hVFBeMfUDts967olRwVBtEbpCpEbRFb-5_gXfm63zDkjm8HBdotohWjlmNmB2_JOK7BhiDLDH1B6w7WBBXs8UEQpomv8PGO7_fOYgJYNnQsD9fQXlD1qKXCrNaKV_4pojVH5DpU3Z6GN_6_1vpcdGHx76DttwHgbH5zrvbGIbhDd7Dhf7rRodOeW2uwQ3fwL0c1BFf9v7rk2Z6U9grFSq9doGRmcFuGkXJIl8TyfKJbuYWiWXO8R3XTd4_Fj0Rv9T-BuuZMOJxRqXjLGiqIpC5o1uSiLouBAyzoTdUKbtoasKZ9Yug_8ezMPVbEtssWgvij9VS06qYbDYqeGad2DASbwXgvo_OpeW3kYp94r61jXgbiRgS9EN7p3iG74ZP8CjmzSTbB1wawFE4Jo4cygviC6aaQ6Yc2AG4wC4WWSNzgN0dLiJ8l4D9ayHbwknWtldQcz7ifURmt3QuoRsR-WDaKbtRbwCyj_7Zd3g-ycVEve9yhdJWlSFV5S8E26QunqM-sGQHSFj1pQujoKmP_YDIq7KUDS1e1eun9Uxbof3vsd8Szuzhmpdp-gHbcYXj3ZigoSdGFEE5TeYB8-BaKF3yDv1SPrpMDrj3_cOYN7z5DATuNJAUW0xC2THYjlW1luGP_iDONn2P0fra_R-vHD7eruFtuh2UuHGW6GHTbQa-P8Yz-22RHdSGsHnzI3mCmBpeLdIAC7B8DcMPsw8xFd495AbzSHANLqwYzD_klmreaSORDYDApbbmTvJsh3jvEvWAz7_snRZIlI_dHonWF7zMxu2INy9u_t-2kaL3biKzPtIsOLHV5oL5H1vZc7uH5wS4sXd3ix2HG-cFp3_IFJhdKb7yr2i-slXRK8aLnutFkIyXZKWye5xYtW6UXgKxpG6XoiKb0dzU682Shdg25Reot7ZiwYzBwGJbBucSuPGYUGgsAs_BD-8OHzb_j9J7wDBYaFaAyrMKIpweRACCF5kSRN3tCspe0szO03O375aKRywRX3oz9nwWvY1622zgDbh9hcY6lcqHW-lv5NhyD6jhxSntOWtk8VwyNPTpBTXvNzyNcdMDX0v6s7uVOsQ7QaVOg3BO60l39ZnITXPMJJI5ysEGld4bV39yfg-hHMtxHY_zElQm6rJvaiNWutHBzclJBI-PekIp1UlG3e5k1D84wSvN0asE4b2Bo3WTjmuanIPhfXMNG7UF2XVi9JsCXJMkoiS7JITd5SQhpsmBw7sj-Rz73kIkjOUkKaSHIeSxZJldeYNfpNyGeSKa3yOpJcnEoun_z9ZpkljWWWsUygrSh-TGaatqKIZFbzKCkSWpC6-Am15XKhntE8I3VsRB2FOjQltOQvGfHb0Dn5eWxGP4HV3WPYGM82PT1FVz7fPE-sjGHfvK3p-ocUn9P4ez_O3142R7SQQ_u8s3wqi7Nwm2a0LP-MuN-0GDoYh2Av3dyCo23jaeaSXicFpWUZgU9OwBc1q34E_CfogFn4CVCzmlUR1CgXF4IllFOvkSmtvu31YLFie7B9qHB1hNhXTm3e7_tuHB7T9b1hynahpv6hpEO0mhm-uruf0nYoizUerfa9pQDzMpV7hGmMsG455HMy3zH-BZRYa2WHfTgb_kUsl-MZuOCQRzxncysqWnOS13MrPvrWZXV3H2O8gz2bGohG6-7584Joi5QzMqsRHm1-wjmcD-DVPE8dgA8OpqFLRy5wfhq5RYQxh6opI0Y3xntXiTMgLw6vTIqmjCksY3gFZPykfI0KwzldcTjP4uv2XDpmi5pnvIhMiCtwwQVlkQkT2GdLHjVnL4G_sNRXqIuy3zaUxdCjuktbXhIQmPNku_eHk3ndnJfHB2Yw18o6D9EXuTWOx-gaj2-tLmtBQtqcgJhbQMmJBVQAw0fG18l9SAPznmbPuu4z8KeUfMacIu4MvIwpBR7XhaASRj6-ko1pVNqKlAuaisDJTG471dqtCbSG2XHLeRRhCWdd54_C21bFfcmoewqcdbLW-z1T4nT3nnWfddO68U0o8xyc6_k8huDbpwe2W344JMn4o2FW8q0NyycWo8V-YOsMk_58PU6fiGNd5zeCNrN5v2T1nL9D_Iych0cQLTu2bwRDtHymilbH89ivujnvjxdnqYqRmSvOnZimHmNQd6yF7ltE5_ddd9Gmr6mbikVNH01Pg6vKW_zfHBye7mXPjPMn0O9EQRYTV2c18FeJC15jL4rikc0od5886BfMUsX6OzrmS1dRDzOz7UIFIOO0Bh6FUn7CSJ6V4kcZ-VU39nU6ftXNB2ldRMf30vFTBPRMeueHdxpvZ3AKk5_MY5qVcRkqTngUef4qjzez71FvcKYpeI3__yCPl2xBMt7kecxceVLA8zRjI8pjE3JEHpLI6sXB_bXyfMm2I00zFqGOej4KvMl5jj3ey6lt2zrn0emI1ifvpFJSpXi77WTjky0zbjuD8Na3VBmp0rmW9KSlakTDAY_yL0kqNM14WI7vXMAYHW7ixrfq7dTOYz5F6Hgrgb9K94DhIL3PBeAkzTy2wQJePGKnsQXActZp19-5n0vS7OQe6Epcp6JOa3YF10lRlTUlWV5cPVzXKeNFK7KKkgoobZOapKwiZVPypm3L_EpeU0JTUtCK0KxMiyWFKhGElTVpKCQsRxmBPZPd0kfwUpvdVbgLuS7SvKiuOtZAZ8N9NqUKvuIwiShF-c2VuQ63KM2wsygjnbTOPktx0nVw_UTj5e-BrgbTXf_1i55g378DAAD__2D_uag">