build: always cache LLVM source/build even if the tests fail to avoid extra rebuilds (#3453)

builds/macos, linux, windows: update to explicit restore/save for LLVM source and LLVM builds

.github/workflows/windows.yml

@@ -15,6 +15,12 @@ jobs:
   build-windows:
     runs-on: windows-2022
     steps:
+      - name: Configure pagefile
+        uses: al-cheb/configure-pagefile-action@v1.3
+        with:
+          minimum-size: 8GB
+          maximum-size: 24GB
+          disk-root: "C:"
       - uses: brechtm/setup-scoop@v2
         with:
           scoop_update: 'false'
@@ -31,11 +37,11 @@ jobs:
         with:
           go-version: '1.20'
           cache: true
-      - name: Cache LLVM source
-        uses: actions/cache@v3
+      - name: Restore cached LLVM source
+        uses: actions/cache/restore@v3
         id: cache-llvm-source
         with:
-          key: llvm-source-15-windows-v2
+          key: llvm-source-15-windows-v4
           path: |
             llvm-project/clang/lib/Headers
             llvm-project/clang/include
@@ -45,11 +51,22 @@ jobs:
       - name: Download LLVM source
         if: steps.cache-llvm-source.outputs.cache-hit != 'true'
         run: make llvm-source
-      - name: Cache LLVM build
-        uses: actions/cache@v3
+      - name: Save cached LLVM source
+        uses: actions/cache/save@v3
+        if: steps.cache-llvm-source.outputs.cache-hit != 'true'
+        with:
+          key: ${{ steps.cache-llvm-source.outputs.cache-primary-key }}
+          path: |
+            llvm-project/clang/lib/Headers
+            llvm-project/clang/include
+            llvm-project/compiler-rt
+            llvm-project/lld/include
+            llvm-project/llvm/include
+      - name: Restore cached LLVM build
+        uses: actions/cache/restore@v3
         id: cache-llvm-build
         with:
-          key: llvm-build-15-windows-v3
+          key: llvm-build-15-windows-v5
           path: llvm-build
       - name: Build LLVM
         if: steps.cache-llvm-build.outputs.cache-hit != 'true'
@@ -62,6 +79,12 @@ jobs:
           make llvm-build CCACHE=OFF
           # Remove unnecessary object files (to reduce cache size).
           find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
+      - name: Save cached LLVM build
+        uses: actions/cache/save@v3
+        if: steps.cache-llvm-build.outputs.cache-hit != 'true'
+        with:
+          key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
+          path: llvm-build
       - name: Cache wasi-libc sysroot
         uses: actions/cache@v3
         id: cache-wasi-libc
@@ -100,6 +123,12 @@ jobs:
     runs-on: windows-2022
     needs: build-windows
     steps:
+      - name: Configure pagefile
+        uses: al-cheb/configure-pagefile-action@v1.3
+        with:
+          minimum-size: 8GB
+          maximum-size: 24GB
+          disk-root: "C:"
       - uses: brechtm/setup-scoop@v2
         with:
           scoop_update: 'false'
@@ -131,6 +160,12 @@ jobs:
     runs-on: windows-2022
     needs: build-windows
     steps:
+      - name: Configure pagefile
+        uses: al-cheb/configure-pagefile-action@v1.3
+        with:
+          minimum-size: 8GB
+          maximum-size: 24GB
+          disk-root: "C:"
       - name: Checkout
         uses: actions/checkout@v3
       - name: Install Go
@@ -154,6 +189,12 @@ jobs:
     runs-on: windows-2022
     needs: build-windows
     steps:
+      - name: Configure pagefile
+        uses: al-cheb/configure-pagefile-action@v1.3
+        with:
+          minimum-size: 8GB
+          maximum-size: 24GB
+          disk-root: "C:"
       - uses: brechtm/setup-scoop@v2
         with:
           scoop_update: 'false'