diff --git a/.github/workflows/daily-regression.yml b/.github/workflows/daily-regression.yml
index 259764135..0f1b37c12 100644
--- a/.github/workflows/daily-regression.yml
+++ b/.github/workflows/daily-regression.yml
@@ -1,151 +1,12 @@
-name: Daily Regression
+name: Chisel and CIRCT Bump
 on:
   schedule:
-    # Run this job everyday at 6:30 AM UTC+8
-    - cron:  '30 22 * * *'
+    # Run this job everyday at 5:30 AM UTC+8
+    - cron:  '30 21 * * *'
 
 jobs:
-  gen-matrix:
-    name: "Generate test matrix"
-    runs-on: [self-hosted, linux, nixos, BIGRAM]
-    env:
-      RUNNERS: 70
-    outputs:
-      test-plan: ${{ steps.gen-matrix.outputs.matrix }}
-    steps:
-      # actions/checkout will use the "event" commit to checkout repository,
-      # which will lead to an unexpected issue that the "event" commit doesn't belongs to the repository,
-      # and causing the derivation build output cannot be cache correctly.
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - id: gen-matrix
-        name: "Generate test matrix"
-        run: |
-          echo -n matrix= >> "$GITHUB_OUTPUT"
-          nix develop -c t1-helper generateRegressionTestPlan --runnersAmount "$RUNNERS" >> "$GITHUB_OUTPUT"
-
-  run-testcases:
-    name: "Run testcases"
-    needs: [gen-matrix]
-    strategy:
-      fail-fast: false
-      matrix: ${{ fromJSON(needs.gen-matrix.outputs.test-plan) }}
-    runs-on: [self-hosted, linux, nixos]
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - name: "Run testcases"
-        run: |
-          nix develop -c t1-helper runTests --jobs "${{ matrix.jobs }}" \
-            --resultDir test-results-$(head -c 10 /dev/urandom | base32) \
-            --dontBail
-
-      - uses: actions/upload-artifact@v4
-        if: ${{ !cancelled() }}
-        with:
-          name: test-reports-${{ matrix.id }}
-          path: |
-            test-results-*/failed-tests.md
-            test-results-*/cycle-updates.md
-
-  gen-perf-matrix:
-    name: "Generate test matrix for perf cases"
-    runs-on: [self-hosted, linux, nixos, BIGRAM]
-    env:
-      RUNNERS: 70
-    outputs:
-      perf-plan: ${{ steps.gen-matrix.outputs.matrix }}
-    steps:
-      # actions/checkout will use the "event" commit to checkout repository,
-      # which will lead to an unexpected issue that the "event" commit doesn't belongs to the repository,
-      # and causing the derivation build output cannot be cache correctly.
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - id: gen-matrix
-        name: "Generate test matrix"
-        run: |
-          echo -n matrix= >> "$GITHUB_OUTPUT"
-          nix develop -c t1-helper generateCiMatrix --testPlanFile "perf.json" --runnersAmount "$RUNNERS" >> "$GITHUB_OUTPUT"
-
-  run-perfcases:
-    name: "Run perf cases"
-    needs: [gen-perf-matrix]
-    strategy:
-      fail-fast: false
-      matrix: ${{ fromJSON(needs.gen-perf-matrix.outputs.perf-plan) }}
-    runs-on: [self-hosted, linux, nixos]
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - name: "Run testcases"
-        run: |
-          nix develop -c t1-helper runTests --jobs "${{ matrix.jobs }}" \
-            --resultDir test-results-$(head -c 10 /dev/urandom | base32)
-
-      - uses: actions/upload-artifact@v4
-        if: ${{ !cancelled() }}
-        with:
-          name: perf-reports-${{ matrix.id }}
-          path: |
-            test-results-*/failed-tests.md
-            test-results-*/cycle-updates.md
-            test-results-*/*_cycle.json
-
-  report:
-    name: "Report CI result"
-    if: ${{ !cancelled() }}
-    needs: [run-testcases]
-    runs-on: [self-hosted, linux, nixos]
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          ref: master
-      - uses: actions/download-artifact@v4
-        with:
-          pattern: '*-reports-*'
-          merge-multiple: true
-      - run: |
-          echo -e "\n## Newly passed tests\n" >> "$GITHUB_STEP_SUMMARY"
-          shopt -s nullglob
-          cat test-results-*/cycle-updates.md >> "$GITHUB_STEP_SUMMARY"
-      - run: |
-          echo -e "\n## Still failing tests\n" >> "$GITHUB_STEP_SUMMARY"
-          shopt -s nullglob
-          cat test-results-*/failed-tests.md >> "$GITHUB_STEP_SUMMARY"
-      - name: "Commit cycle updates"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          nix develop -c t1-helper mergeCycleData --filePat perf.json
-          git config user.name github-actions
-          git config user.email github-actions@github.com
-          changed_cases=$(git diff --name-only '.github/cases/**/perf.json')
-
-          if [ -n "$changed_cases" ]; then
-            echo "changed cases: $changed_cases"
-            currentDate=$(date +%F)
-            branch="cycle-update-$currentDate"
-            git checkout -b "$branch"
-            git add '.github/cases/**/perf.json'
-            git commit -m "[ci] update test case cycle data at $currentDate"
-            git push origin "$branch" --force-with-lease
-            nix run '.#gh' -- \
-              pr create --title "Update perf cycle" --body "Update test cycles."
-          else
-            echo "No cycle change detect"
-          fi
-      - uses: geekyeggo/delete-artifact@v4
-        with:
-          # test-reports has been used, it can be deleted
-          name: test-reports-*
-
   bump-deps:
-    name: "Bump Chisel"
+    name: "Bump Chisel and CIRCT"
     if: ${{ !cancelled() }}
     runs-on: [self-hosted, linux, nixos]
     steps:
diff --git a/.github/workflows/verilator.yml b/.github/workflows/verilator.yml
index f8b2a60b7..d839cef20 100644
--- a/.github/workflows/verilator.yml
+++ b/.github/workflows/verilator.yml
@@ -1,23 +1,11 @@
-name: Verilator Test
+name: Verilator Daily Regression
 on:
-  pull_request:
-    types:
-      - opened
-      - synchronize
-      - reopened
-      - ready_for_review
-      - labeled
-env:
-  USER: runner
-
-# Cancel the current workflow when new commit pushed
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
-  cancel-in-progress: true
+  schedule:
+    # Run this job everyday at 6:30 AM UTC+8
+    - cron:  '30 22 * * *'
 
 jobs:
   gen-test-plan:
-    if: '! github.event.pull_request.draft'
     name: "Generate test plan"
     runs-on: [self-hosted, linux, nixos]
     outputs:
@@ -30,7 +18,7 @@ jobs:
         run: echo "out=$(nix run .#ci-helper generateTestPlan)" > $GITHUB_OUTPUT
 
   build-emulators:
-    name: "Build Emulators"
+    name: "Build Verilator Emulators"
     needs: [gen-test-plan]
     runs-on: [self-hosted, linux, nixos, BIGRAM]
     strategy:
@@ -103,18 +91,4 @@ jobs:
         run: |
           nix run ".#ci-helper" -- postCI --failed-tests-file-path ./failed-tests.md --cycle-update-file-path ./cycle-update.md
           cat ./failed-tests.md >> $GITHUB_STEP_SUMMARY
-          cat ./cycle-update.md >> $GITHUB_STEP_SUMMARY
-      - name: "Commit cycle updates"
-        run: |
-          git config user.name github-actions
-          git config user.email github-actions@github.com
-          changed_cases=$(git diff --name-only '.github/cases/**/default.json')
-
-          if [ -n "$changed_cases" ]; then
-            echo "changed cases: $changed_cases"
-            git add '.github/cases/**/default.json'
-            git commit -m "[ci] update test case cycle data"
-            git push origin ${{ github.head_ref }}
-          else
-            echo "No cycle change detect"
-          fi
+          cat ./cycle-update.md >> $GITHUB_STEP_SUMMARY
\ No newline at end of file