<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/104590>104590</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Random SEGFAULTs with llvm-tblgen
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          abhisen7
      </td>
    </tr>
</table>

<pre>
    Can someone explain why `llvm-tblgen` is randomly SEGFAULTing? 

```
abhishek@abhishek-ThinkCentre-M90t:~$ ./llvm-tblgen -d
llvm-tblgen: for the -d option: requires a value!

abhishek@abhishek-ThinkCentre-M90t:~$ ./llvm-tblgen -d
Segmentation fault (core dumped)
```

Tried debugging the core dump, but not really helping-

```

abhishek@abhishek-ThinkCentre-M90t:~$ coredumpctl gdb 97121
           PID: 97121 (llvm-tblgen)
           UID: 1000 (abhishek)
           GID: 1000 (abhishek)
        Signal: 11 (SEGV)
     Timestamp: Fri 2024-08-16 16:19:21 +03 (2min 2s ago)
  Command Line:   /llvm-project/llvm/bin/llvm-tblgen -gen-intrinsic-enums -intrinsic-prefix=xcore -I  llvm-project/llvm/include/llvm/IR -I /sql_parser/llvm-project/llvm/include -I  /llvm-project/llvm/include /llvm-project/llvm/include/llvm/IR/Intrinsics.td --write-if-changed -o  /llvm-project/llvm/include/llvm/IR/IntrinsicsXCore.h -d  /llvm-project/llvm/include/llvm/IR/IntrinsicsXCore.h.d
    Executable: /llvm-project/llvm/bin/llvm-tblgen
 Control Group: /user.slice/user-1000.slice/session-5.scope
          Unit: session-5.scope
         Slice: user-1000.slice
       Session: 5
     Owner UID: 1000 (abhishek)
       Boot ID: 7176813a7d0e4ccc88231d695c240ccb
    Machine ID: b4a360ae60a542b6afb7e25564813061
      Hostname: abhishek-ThinkCentre-M90t
       Storage: /var/lib/systemd/coredump/core.llvm-tblgen.1000.7176813a7d0e4ccc88231d695c240ccb.97121.1723814361000000.zst (present)
     Disk Size: 120.4K
       Message: Process 97121 (llvm-tblgen) of user 1000 dumped core.
                
                Found module /usr/lib/x86_64-linux-gnu/libc.so.6 with build-id: 490fef8403240c91833978d494d39e537409b92e
                Found module /usr/lib/x86_64-linux-gnu/libm.so.6 with build-id: a508ec5d8bf12fb7fd08204e0f87518e5cd0b102
                Found module /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 with build-id: 4186944c50f8a32b47d74931e3f512b811813b64
                Found module linux-vdso.so.1 with build-id: 104789970bc380523362c588c13a113f5272af58
                Stack trace of thread 97121:
                #0  0x00006192b704b3f0 n/a (n/a + 0x0)

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<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
GEF for linux ready, type `gef' to start, `gef config' to configure
89 commands loaded and 5 functions added for GDB 12.1 in 0.00ms using Python engine 3.10
Reading symbols from  /sql_parser/llvm-project/llvm/bin/llvm-tblgen...
[New LWP 97121]
Core was generated by `/sql_parser/contrib/llvm-project/llvm/bin/llv'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00006192b704b3f0 in ?? ()
gef➤  bt
#0  0x00006192b704b3f0 in ?? ()
#1  <signal handler called>
#2  0x00006192b704b3f0 in ?? ()
#3  <signal handler called>
#4  0x00006192b704b3f0 in ?? ()
#5  <signal handler called>
#6  0x00006192b704b3f0 in ?? ()
#7  <signal handler called>
#8  0x00006192b704b3f0 in ?? ()
#9  <signal handler called>
#10 0x00006192b704b3f0 in ?? ()
#11 <signal handler called>
#12 0x00006192b704b3f0 in ?? ()
#13 <signal handler called>
#14 0x00006192b704b3f0 in ?? ()
#15 <signal handler called>
#16 0x00006192b704b3f0 in ?? ()
#17 <signal handler called>
#18 0x00006192b704b3f0 in ?? ()
#19 <signal handler called>
#20 0x00006192b704b3f0 in ?? ()
#21 <signal handler called>
#22 0x00006192b704b3f0 in ?? ()
#23 <signal handler called>
#24 0x00006192b704b3f0 in ?? ()
#25 <signal handler called>
#26 0x00006192b704b3f0 in ?? ()
#27 <signal handler called>
#28 0x00006192b704b3f0 in ?? ()
#29 <signal handler called>
#30 0x00006192b704b3f0 in ?? ()
#31 <signal handler called>
#32 0x00006192b704b3f0 in ?? ()
#33 <signal handler called>
#34 0x00006192b705c691 in ?? ()
#35 0x0000040000002000 in ?? ()
#36 0x0000000000000000 in ?? ()
```

This is the binary version, how I am compiling with `clang-15`

```abhishek@abhishek-ThinkCentre-M90t:~/packdb/fuzzer-tests/sql_parser/contrib/llvm-project/llvm/bin$ ./llvm-tblgen --version
LLVM (http://llvm.org/):
  LLVM version 14.0.6
  Optimized build.
  Default target: x86_64-unknown-linux-gnu
  Host CPU: skylake
  ```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJysWc1y2zgSfhr60kUWCJAUefDBf_Kk1sm44mRm9zQFEk0KaxLQAKBl5TDPvgWI-rFjT6TsuFwqEWh83eiv0eimuLWyU4jnUX4Z5ddnfHQLbc55vZAW1eys1mJ9fsUVWD2gVgj4vOy5VLBarCEqSN8_DbGr-w5VVBCQFgxXQg_9Gh5ubucXX---SNVFbA4RuY7IxfRZkOk_PAZtC3yMMrL9Gn9ZSPV4hcoZjD9WxEXs4q-IZpBEdH6gFGKxwTg0hF1Aqw24BUIsQC-d1GHQ4J-jNGiBwxPvR4xoemjVP2HGA3YDKse9Smj52DuIaNlogyDGYYkiotWbPth8fjESBQisx66Tqgtb2C2O6BXUowOlHRjkfb-GBfZLqbr4b5x7-t68Qq-vcT10ooZqlm4dBfu_-w_X3qdh0u_xkIDtHg_Ev27EU0KIl97Z84bo7ZGiD7JTvA-iwYKHm9vfXgp9kQNax4elF5obCZTQLCZlnBaQFhG7SKuIXQT7LwnzGHSQCqgF3ukDqCs9DFwJuJMKPRTAlv6l0f_Fxk2PEZ3XUr0OjQ5VLJUzUlnZxKjGwcLBwNJgK58jdv0cmI4_ALwNLVXTjwL3Ax8-e-mIzu2f_R9Lbiyad-2aFgf4Hwr9SODQBP-x3YtNnIA4XhnpMJZt3Cy46lBArH-s9F3Mf19pg8nCH-X_GyQR--i4ecZmdLzuA6XHEzohXGnljO7h1uhxOSGMFk1ie9ng9BD7IN6NWLRWahXniW30El8H_lcl_RmEvxd7CGDsAl7jH4o9bCC8WH4w8etKoTn2KF5q7WAjOktnRZkyPhMEs6ZpypKyVBRV3tCMNE29X_eRNwupcFpXZ5wVhGNBeJ7RuuBtPUOa50VWpowUL5LKL9o6xYewtfdT1ItNOm14t2XviYfgl7V39No6HERE59tcNn1NDnhMgu9-tLUkJLgknVFWphkr_CK_7psNmX1p0KJyL313Le0jPMhvwbSUkiT71wvDP6K1k-H3Rjdo7XtpFHQbeN6QtblBQn5Ovsua4e_t0bkelYBBi7HHTZjuXfVcFn8UWdxLNT7HnRo3E01idVLASroF1KPsRSyFNzerSIttmRHmvVOlJWPVrBRZlQlWYc5mGanqin4X2j9rx_COHTwnJTa5KOs2pW09awUpKcmQtOUsT0vMG0HqlNB_xg4xPT6XRVxk3iT6hmvSsqiyrMlJW3JG62wmZlnFUmRtntK6TNMyZXWRHWHSRtuTsNrrSr_XlZJsVlbVjNQNK0lOGStok5dlkzKepqzN6YzyNi_f1vXgePMIzvAGfXy5hUEuplueXbwTWJQRAPLsY79IK1rPSFazloBPjtwH7vbLpZfaVznh8_bT11BJRLT8Wo_KjZDSJI3JGB7SvyhNSJZQH_B-YrPoSi_XRnaLcM6u_BwllMLcIMKDbt2KG9z4LVRbvjr6oJrpYNzJBpVFuL2_e2IRvfRe81bc3t_BExqfHIGBNtBzhwYidrVwzqfxiM4jOu_UmGjThagIQNYPLvtk4YY-YjdTtbaQ1pe8rTfJTiZ5TWs9grcuTDgNm3sQfAlhUEjrjKxHhyBdskVCgx7q06_w-8XnzxefvvzHb8jpUALis0PlYIlmkM6hgHoNPV9tF6-XPoypXegVNHq59hU3pUHddnjFjeHKrf24r40FOi57mxxs5Pb6ElbcQqNVK7vRoABuPcD3R4K-rXmzbmJjo-fF4Cutc22gHjswuNTG-XJXKuvM2HhZ67e_7JFbBIu4C8yJKbujarVaJXu6dizQeSf8ea7HznMXsZutVqlEcKrf78DVyPvgKe0WaEDoZtwX8AatHk2DFrTq_bXG3YsT8jpsfmDLC_AXRu0d4iv6wPzk2s3za4fzpdFLbWGljfCudhosctMsJqeHctWCQR_ewk9HlE7CSTKB3d7Mg3gg1ncUYr3XXJAO24jOArTjxvmpzehE6jS5C5cNaFnt1feaCx9FSkAO7ag2xAIXftRr9hT4Aw9SAUkIGSyM1gfC_dottAJUnfc6S9KpmfmMXPh5ux5q3fuTpwc4sgL-rpDbOSLKLz_hCu5-v5-yYH69TUEGw5noUKHh08nzrdUrjY0vBsP98QPdEZ1NSu-N7gwfwPlDrQJ2yPM2dDXw8OF2089cwfc95dbu95KyVBCxeei6abnLxZ7QGxpVN9FFBlC7nwKJKEtD4E92LrgSPRpoeN-j2KXGiDJ6Gio7DjU7DTU_DrU4DXV2HGp5Gmp1HGpKTmMrPQ6VnobKjkPNTkPNj0MtTkOdHYdanoZaHXcKTmOLHscWPY0tehxb9DS26HFs0dPYosexRU9jix7HFjuNLXYcW-w0tthxbLFXbOVNUaV_g5pP4iTbtLDUt5Tvi29ZO_x7T_zNV5lTcexLrVoqbtbbwtvfab5g_AB88MXCUvb-Tg-3X1SQpueqi9P8Fd5OyfGvMudL3jyGyqsdv31DEzu0zv7U3f3GG994u51Nw3H320fvlBf1oJefikHvrH3pGKS3fUiaJSQptlO_Lp0c5DdfaviOb9foX-PmdbLjpsPwnmiqy0f1qPRKHdTn04pftHVwdf81vFN6XPf8cdeX75x5Js6ZqFjFz_B8844jzwpytjhPURRNVTHR8BJJWtGsoFXaNkUrCKkYO5PnlNCMlGmRMt_3J3WR0VnLKGEVlgJ5lBEcuOyTrRfOpLUjnqckyyty1vMaext-d6BU4QrCbERplF-fmfPg6lC8Z6SX1tk9jJOux_PP4XeG3a8MdhM_BwydjaY_f9krdNItxjpp9LCn9xXpwQofI5OZT-f0fwEAAP__zqBEyg">