[llvm] [Github] Add build Flang docs in CI if autogenerated files change (PR #72721)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Aiden Grossman (boomanaiden154)

<details>
<summary>Changes</summary>

Currently, when changes are made to the tablegen files that build the docs, the docs build is not tested. This should rarely cause breakages, but it's cheap to test and there isn't a major reason not to.

---
Full diff: https://github.com/llvm/llvm-project/pull/72721.diff


1 Files Affected:

- (modified) .github/workflows/docs.yml (+3) 


``````````diff
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 6329d777a182031..d872097b239d27e 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -24,6 +24,7 @@ on:
       - 'openmp/docs/**'
       - 'polly/docs/**'
       - 'flang/docs/**'
+      - 'flang/include/flang/Optimizer/Dialect/FIROps.td'
   pull_request:
     paths:
       - 'llvm/docs/**'
@@ -37,6 +38,7 @@ on:
       - 'openmp/docs/**'
       - 'polly/docs/**'
       - 'flang/docs/**'
+      - 'flang/include/flang/Optimizer/Dialect/FIROps.td'
 
 jobs:
   check-docs-build:
@@ -80,6 +82,7 @@ jobs:
               - 'polly/docs/**'
             flang:
               - 'flang/docs/**'
+              - 'flang/include/flang/Optimizer/Dialect/FIROps.td'
       - name: Fetch LLVM sources (PR)
         if: ${{ github.event_name == 'pull_request' }}
         uses: actions/checkout at v4

``````````

</details>


https://github.com/llvm/llvm-project/pull/72721