diff --git a/.github/workflows/corev-llvm-tests.yml b/.github/workflows/corev-llvm-tests.yml
new file mode 100644
index 000000000000..f268620bba16
--- /dev/null
+++ b/.github/workflows/corev-llvm-tests.yml
@@ -0,0 +1,36 @@
+name: COREV LLVM Tests
+
+on:
+  workflow_dispatch:
+  push:
+    ignore-forks: true
+    branches:
+      - 'development'
+    paths:
+      - 'llvm/**'
+      - '.github/workflows/corev-llvm-tests.yml'
+      - '.github/workflows/llvm-project-tests.yml'
+  pull_request:
+    ignore-forks: true
+    branches:
+      - 'development'
+    paths:
+      - 'llvm/**'
+      - '.github/workflows/corev-llvm-tests.yml'
+      - '.github/workflows/llvm-project-tests.yml'
+
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+jobs:
+  check_all:
+    if: github.repository_owner == 'openhwgroup'
+    name: Test llvm,clang
+    uses: ./.github/workflows/llvm-project-tests.yml
+    with:
+      build_target: check-all
+      projects: clang
+
diff --git a/.github/workflows/llvm-project-tests.yml b/.github/workflows/llvm-project-tests.yml
index a32fe80ae11c..e6b9bfa22114 100644
--- a/.github/workflows/llvm-project-tests.yml
+++ b/.github/workflows/llvm-project-tests.yml
@@ -36,7 +36,11 @@ jobs:
           - ubuntu-latest
           # Use windows-2019 due to:
           # https://developercommunity.visualstudio.com/t/Prev-Issue---with-__assume-isnan-/1597317
-          - windows-2019
+
+          # Disable windows for the time being. Because we're using GitHub
+          # hosted runner, which maximum number of timeout-minutes is 360.
+          # Otherwise, the job will exceeded the time and be canceled.
+          # - windows-2019
           # We're using a specific version of macOS due to:
           # https://github.com/actions/virtual-environments/issues/5900
           - macOS-11