[llvm] [Github][RFC] Add workflow to diff codegen on llvm-test-suite (PR #190010)

[Luke Lau via llvm-commits]

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@@ -0,0 +1,149 @@
+# When /test-suite is commented on a PR, checks out the PR, builds clang and
+# then the test-suite in several configurations. It then checks out the base of
+# the PR, builds clang and the test-suite again, and then uploads the diff of
+# the codegen.
+
+name: Diff test-suite codegen
+
+on:
+  issue_comment:
+    types:
+      - created
+
+permissions:
+  contents: read
+
+jobs:
+  test-suite:
+    name: Build test-suite and diff
+    runs-on: ubuntu-24.04
+    container:
+      image: ghcr.io/llvm/ci-ubuntu-24.04:35e958d7f0b7
+    if: github.event.issue.pull_request && startswith(github.event.comment.body, '/test-suite')
+    steps:
+      - name: Check permissions
----------------
lukel97 wrote:

Added a TODO in 7e1c6459a597

https://github.com/llvm/llvm-project/pull/190010