[llvm] [LLVM] Specialize test suites for `TableGen` and `FileCheck` to use smaller set of dependencies (PR #155929)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Fri Sep 19 08:19:26 PDT 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `arc-builder` running on `arc-worker` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/3/builds/22188

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: FileCheck/check-not-custom-prefix.txt' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
rm -f /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp &&  echo "LEADING: placeholder1" >>/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp && echo "MIDDLE-NOT: placeholder2" >>/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp && echo "TRAILING-NOT: placeholder3" >>/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp &&  env -u FILECHECK_OPTS not /buildbot/worker/arc-folder/build/bin/FileCheck --strict-whitespace --check-prefixes LEADING,MIDDLE,TRAILING --dump-input=never --input-file  /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp 2>&1 |  /buildbot/worker/arc-folder/build/bin/FileCheck --check-prefix TEST1 /buildbot/worker/arc-folder/llvm-project/llvm/test/FileCheck/check-not-custom-prefix.txt
# executed command: rm -f /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp
# executed command: echo 'LEADING: placeholder1'
# executed command: echo 'MIDDLE-NOT: placeholder2'
# executed command: echo 'TRAILING-NOT: placeholder3'
# executed command: env -u FILECHECK_OPTS not /buildbot/worker/arc-folder/build/bin/FileCheck --strict-whitespace --check-prefixes LEADING,MIDDLE,TRAILING --dump-input=never --input-file /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp
# executed command: /buildbot/worker/arc-folder/build/bin/FileCheck --check-prefix TEST1 /buildbot/worker/arc-folder/llvm-project/llvm/test/FileCheck/check-not-custom-prefix.txt
# RUN: at line 8
rm -f /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp &&  echo "LEADING: placeholder1" >>/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp && echo "MIDDLE-NOT: placeholder2" >>/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp && echo "TRAILING: placeholder3" >>/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp &&  env -u FILECHECK_OPTS not /buildbot/worker/arc-folder/build/bin/FileCheck --strict-whitespace --check-prefixes LEADING,MIDDLE,TRAILING --dump-input=never --input-file  /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp 2>&1 |  /buildbot/worker/arc-folder/build/bin/FileCheck --check-prefix TEST2 /buildbot/worker/arc-folder/llvm-project/llvm/test/FileCheck/check-not-custom-prefix.txt
# executed command: rm -f /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp
# executed command: echo 'LEADING: placeholder1'
# executed command: echo 'MIDDLE-NOT: placeholder2'
# executed command: echo 'TRAILING: placeholder3'
# executed command: env -u FILECHECK_OPTS not /buildbot/worker/arc-folder/build/bin/FileCheck --strict-whitespace --check-prefixes LEADING,MIDDLE,TRAILING --dump-input=never --input-file /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp
# executed command: /buildbot/worker/arc-folder/build/bin/FileCheck --check-prefix TEST2 /buildbot/worker/arc-folder/llvm-project/llvm/test/FileCheck/check-not-custom-prefix.txt
# .---command stderr------------
# | /buildbot/worker/arc-folder/llvm-project/llvm/test/FileCheck/check-not-custom-prefix.txt:38:10: error: TEST2: expected string not found in input
# | ; TEST2: error: MIDDLE-NOT: excluded string found in input
# |          ^
# | <stdin>:1:1: note: scanning from here
# | FileCheck error: '/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp' is empty.
# | ^
# | <stdin>:2:111: note: possible intended match here
# | FileCheck command line: /buildbot/worker/arc-folder/build/bin/FileCheck --strict-whitespace --check-prefixes LEADING,MIDDLE,TRAILING --dump-input=never --input-file /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp
# |                                                                                                               ^
# | 
# | Input file: <stdin>
# | Check file: /buildbot/worker/arc-folder/llvm-project/llvm/test/FileCheck/check-not-custom-prefix.txt
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1: FileCheck error: '/buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp' is empty. 
# | check:38'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
# |             2: FileCheck command line: /buildbot/worker/arc-folder/build/bin/FileCheck --strict-whitespace --check-prefixes LEADING,MIDDLE,TRAILING --dump-input=never --input-file /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp /buildbot/worker/arc-folder/build/test/FileCheck/Output/check-not-custom-prefix.txt.tmp 
# | check:38'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:38'1                                                                                                                   ?                                                                                                                                                                                                                                       possible intended match
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

...

```

</details>

https://github.com/llvm/llvm-project/pull/155929

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