<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/81827>81827</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
[BOLT] clang-nolbr.test sporadically fails
</td>
</tr>
<tr>
<th>Labels</th>
<td>
BOLT
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
aaupov
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
aaupov
</td>
</tr>
</table>
<pre>
E.g. https://lab.llvm.org/buildbot/#/builders/244/builds/24658
Log:
https://lab.llvm.org/buildbot/#/builders/244/builds/24658/steps/13/logs/FAIL__bolt-tests__clang-nolbr_test
```
+ /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/bolt-tests/test/X86/Inputs/bf.cpp -O2 -std=c++11 -c -o /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp.out
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x1d)[0xb91357]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN4llvm3sys17RunSignalHandlersEv+0x2f)[0xb90173]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0xb903f1]
/lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f8a1a642520]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0x3857bee]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0x354a37a]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0x3847331]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x7b)[0x340fbfb]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x4bc)[0x341e19a]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x33)[0x1ae4143]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x185)[0x2219375]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN5clang17EmitBackendOutputERNS_17DiagnosticsEngineERKNS_19HeaderSearchOptionsERKNS_14CodeGenOptionsERKNS_13TargetOptionsERKNS_11LangOptionsERKN4llvm10DataLayoutEPNSE_6ModuleENS_13BackendActionESt10unique_ptrINSE_17raw_pwrite_streamESt14default_deleteISM_EE+0x825)[0x22a3455]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0x2385f1e]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0x397424e]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN5clang13CodeGenAction13ExecuteActionEv+0x36)[0x2385986]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN5clang14FrontendAction7ExecuteEv+0x24)[0x2337034]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN5clang16CompilerInstance13ExecuteActionERNS_14FrontendActionE+0x120)[0x231c0e0]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_ZN5clang25ExecuteCompilerInvocationEPNS_16CompilerInstanceE+0x1a7)[0x23433a7]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(_Z8cc1_mainN4llvm8ArrayRefIPKcEES2_Pv+0x415)[0x2173c15]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp(main+0x4da)[0x1768eea]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d90)[0x7f8a1a629d90]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80)[0x7f8a1a629e40]
/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp[0x2172d29]
Stack dump:
0. Program arguments: /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -disable-free -disable-llvm-verifier -discard-value-names -main-file-name bf.cpp -mrelocation-model static -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -momit-leaf-frame-pointer -dwarf-column-info -debugger-tuning=gdb -coverage-notes-file /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp.gcno -resource-dir /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/lib/clang/6.0.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/x86_64-linux-gnu/c++/11 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/x86_64-linux-gnu/c++/11 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/backward -internal-isystem /usr/local/include -internal-isystem /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/lib/clang/6.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86 -ferror-limit 19 -fmessage-length 0 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -vectorize-loops -vectorize-slp -o /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output/clang-nolbr.test.tmp.out -x c++ /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/bolt-tests/test/X86/Inputs/bf.cpp
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module '/home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/bolt-tests/test/X86/Inputs/bf.cpp'.
4. Running pass 'Machine Instruction Scheduler' on function '@_ZN4llvm2cl6valuesIiEENS0_11ValuesClassIT_EEPKcS3_S6_z'
clang-nolbr.test.tmp: error: unable to execute command: Segmentation fault (core dumped)
clang-nolbr.test.tmp: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 6.0.0
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/worker/bolt-worker2/bolt-x86_64-ubuntu-nfc/build/tools/bolttests/X86/Output
clang-nolbr.test.tmp: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script.
clang-nolbr.test.tmp: note: diagnostic msg:
********************
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzkWt1v2zgS_2uUF4KGSMqW_JCHpLFvg03boC4Oh3sRKGokc0uROn7kY__6Ayk5dtt0sR-3rYEDgkQcUpzfjzMaDofhzsleA1xmy-uMUs7DaB4ySrPlzQUPfm_s5SS7aEz7fLlZ9Au09350GbvK6DajW8WbhVIPw8LYPqPbJkjVNsanTnYQgHUZ3dKiOAim5mpZZflNll9Nv-9MH6dNz_9bJXTrPIyxTeJwZfr4vL26vavrxiiPPTjv6loornusjWpsHUWn6LJVPv9MTXqNMrrdmwEyun009hPYqDjONrXooflUrepVgUMTtA9Yd-IAMKNbb4xy88AEIqPbf1WrjG7fBz-GSPEE1CIOWfhh_EuqXwhH_ZHlQeWtHkOSNt1CjCPC7ynCzrcZuxEZvc7oNSEIC4TND6S-MOFglx-GIaNV_e93RXRJ5p4dWd5bqf3Oc_Hpo-UCNh_e7WpCLH-sjfMW-LDJ6HX-RNqMrrPldf7UrAlbltny5tyolB-C3slec_UT160C6zYPCTvtjthzUrJzwD6jYR05RaNkk9HtrE9JHZ5wr8PUIRbOLFYZrRKngi5pfqBVdhUnfDXJzoQcq5ZlA3A2cJYFZyU_GzhVUTJGzgHO8Ssi67dc7KWGbdDCS6PvuXOE2aDf64MoxYfqpZV8sWwOjsiKvGu65sxose19ZPKWa96D_R2EikYcGREg67Pwm28zIonRW9MGNQXw1fyc2DB2IEM4FKQ4i_h3JLNS0HPxTJYnjG6HUUUzfU2GVMsDG0rJmpXLs2GzTF2k3AzSX3PxCXQ7vTXtqeWN5L02zkvhNrqXGjYffo4d65-At2B3wK3Yvx-jG7q5q3hjWvgH6M-l7CO3PfjPheSO6_5ENDlKfsM9v-PPJvjN_bvd5mUx0zwzyqvJ9Xee5EHL_wSoR29v42hSxkRgfLTSQz2nAztPihY6HpSvW1Dg4Xb3tt5M5qnoiXk4K5ZnYZ4Eh1XLjpzPfrQuC1qcBZxT52Wzw00uQdjmCUTwMHvIlE6x1YuJWbVcV6tzI1FsrdH-xbHLmcQhGyyO8FmZs-Lc4K_emGGUCuytdp5rAV-aIYWTL0jO0fGYE1JGRA5nkQ6ekKPLmcqR44MRPDG4j7S-Ij8T4-WRWMEYP5sDSCUEqQcu9RRxqytr-fMH6G7vfxabzY7W95PbFeQYGUnJBDmLyEirCH0C2PKXPKFcVQD8z51M6Lpdf3kymWR_dLq6jq3aeW59_YKz-npyKM7Cz2fb0jbim-GkkzVqwzC-FIjyRZav763pLR8Qt30YQHuXsasfWZXBQhCEvZWjAnRQoD9p86iP9kEYBumxaX5BuJWONwpwZwGOrfgJ4AewspNgk1hw2-IHrgJgzQdwCEdL4k6qSYAOFZvBgppDAR5MCwo5z70UCA9-b4G3s3Q0Tj4h3A3c7zFYq02c0iW1jXGA8CCMdt4G4Y3FXEnuktqgH6VusY9AHcJdcICllh7z-Mki7FNWhcUY4gLgVYHwYCJfBbzDneUD4NFI7ROzR247LIwKg8ZSdwbhFprQ92CxD1rqPmM3fdsgLMwDWN4D1saDS8R_ZA2qF3HBLDgTrADcSvv3opm-9AQlo9vVIl_kCKdF1Fxh6Z6dhyFCCM6-DO-FeD08EJLR7WLx9S-phQpt5DDX-9Lgv1fTK2_9nyg_1RStzsWnR27b31RqBFfHSV4f-l3d8FUw8BQfxNf4v73yv_32H1fxjeJ118JoQXAPLR64sCaJmtBjkVKmKXL-vd8zwh1YayxWcpAekXWMw-BcDG8KdO_3KEe4M80vAtugvRwghkEhEO7E0xOGJwHTETXOdNpoj4dj7PbmEZvUhfADxDAufwWsjBndqcCp8ccX9BF-QrOVvs_VxpREkJhEZOwNmC5jGzRy68Ai7hHoFpkOxW1mGknjyHisQz1osMlNph4Wez4EHXcrNHLnUEbLQyUM3UfBXI_JaImMRkOqHcRR34NpRsvFBLR4Dehcq0S3814fMe_EHiLEA-DuQCZCLvJDyYkKtUopibuVm827XV4T8s_UfqO4c7cf683m_mexY_VuVf8a300wXk362BVKn0R8CDrmFsgbBNMpBwkzDFy3sXMHfUz00vqjVD5BGa2EsZDSQ0gXLL9PTxqAuvkAeFCCOi4VtKgNCYJLVyFRR4hJ0UOSASD5cuL6XCF6AOsitmmPnnqmSlPU-a2ccB6XMjSUMrQ4OiVpU1c6yCkF7Y203yvJ_c1ljHlY_HsMOWhwfZTc322udhvkQhOjG0dN6JGF0VgfF2_v_Xi81z290013siia4BDC_R6QsNztUdwbveUCMvoGjRZGawQ4By2aMrAojm9y54yQMbojGzRywsrRL_4sk8NZ6C_8fH51fNFesnbN1vwCLkmZl-tyXebsYn9ZELrqCkI4Kzmwos1ZQ1uadzkDWubL5YW8pDktckqW-aqoKFu0ZS7Wjah4QVaFWDVZkcPApXq5J7-QzgW4rEhFywvFG1BuvuW_fn_3cb7jt5fprJEWv8iVdN4dJ_DSq_SfAemF5Q36cgWRG43lrRRcqef04biLYNXl55f3vfT70CyEGWaLz3_waM0vIGLkSlCj-RPa_wYAAP__w2CoKQ">