[llvm] workflows: Fix baseline version for llvm abi checks (PR #85166)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Tom Stellard (tstellar)

<details>
<summary>Changes</summary>

The baseline version calculations was assuming the minor release would always be 0.

---
Full diff: https://github.com/llvm/llvm-project/pull/85166.diff


1 Files Affected:

- (modified) .github/workflows/llvm-tests.yml (+15-2) 


``````````diff
diff --git a/.github/workflows/llvm-tests.yml b/.github/workflows/llvm-tests.yml
index 127628d76f1913..4c6d01a4b801cd 100644
--- a/.github/workflows/llvm-tests.yml
+++ b/.github/workflows/llvm-tests.yml
@@ -42,6 +42,7 @@ jobs:
       BASELINE_REF: ${{ steps.vars.outputs.BASELINE_REF }}
       ABI_HEADERS: ${{ steps.vars.outputs.ABI_HEADERS }}
       BASELINE_VERSION_MAJOR: ${{ steps.vars.outputs.BASELINE_VERSION_MAJOR }}
+      BASELINE_VERSION_MINOR: ${{ steps.vars.outputs.BASELINE_VERSION_MINOR }}
       LLVM_VERSION_MAJOR: ${{ steps.version.outputs.LLVM_VERSION_MAJOR }}
       LLVM_VERSION_MINOR: ${{ steps.version.outputs.LLVM_VERSION_MINOR }}
       LLVM_VERSION_PATCH: ${{ steps.version.outputs.LLVM_VERSION_PATCH }}
@@ -58,15 +59,27 @@ jobs:
       - name: Setup Variables
         id: vars
         run: |
-          if [ ${{ steps.version.outputs.LLVM_VERSION_MINOR }} -ne 0 ] || [ ${{ steps.version.outputs.LLVM_VERSION_PATCH }} -eq 0 ]; then
+          # libLLVM:
+          # 18.1.0 we aren't doing ABI checks.
+          # 18.1.1 We want to check 18.1.0.
+          # libclang:
+          # 18.1.0 We want to check 17.0.x
+          # 18.1.1 We want to check 18.1.0
+          if [ ${{ steps.version.outputs.LLVM_VERSION_PATCH }} -eq 0 ]; then
             {
               echo "BASELINE_VERSION_MAJOR=$(( ${{ steps.version.outputs.LLVM_VERSION_MAJOR }} - 1))"
               echo "ABI_HEADERS=llvm-c"
+              if [ "${{ steps.version.outputs.LLVM_VERSION_MAJOR }}" -le 18 ]; then
+                echo "BASELINE_VERSION_MINOR=0"
+              else
+                echo "BASELINE_VERSION_MINOR=1"
+              fi
             } >> "$GITHUB_OUTPUT"
           else
             {
               echo "BASELINE_VERSION_MAJOR=${{ steps.version.outputs.LLVM_VERSION_MAJOR }}"
               echo "ABI_HEADERS=."
+              echo "BASELINE_VERSION_MINOR=1"
             } >> "$GITHUB_OUTPUT"
           fi
 
@@ -82,7 +95,7 @@ jobs:
         include:
           - name: build-baseline
             llvm_version_major: ${{ needs.abi-dump-setup.outputs.BASELINE_VERSION_MAJOR }}
-            ref: llvmorg-${{ needs.abi-dump-setup.outputs.BASELINE_VERSION_MAJOR }}.0.0
+            ref: llvmorg-${{ needs.abi-dump-setup.outputs.BASELINE_VERSION_MAJOR }}.${{ needs.abi-dump-setup.outputs.BASELINE_VERSION_MINOR }}.0
             repo: llvm/llvm-project
           - name: build-latest
             llvm_version_major: ${{ needs.abi-dump-setup.outputs.LLVM_VERSION_MAJOR }}

``````````

</details>


https://github.com/llvm/llvm-project/pull/85166