[SOL] Fix LLVM 19 CI

Author: LucasSte

.github/workflows/llvm-project-tests.yml

@@ -78,11 +78,6 @@ jobs:
           # We're using a specific version of macOS due to:
           # https://github.com/actions/virtual-environments/issues/5900
           - macOS-latest
-        include:
-          - compile_cache: sccache
-
-          - compile_cache: ccache
-            os: macos-latest
     steps:
       - name: Setup Windows
         if: startsWith(matrix.os, 'windows')
@@ -106,7 +101,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 250
-      - name: Setup ${{ matrix.compile_cache }}
+      - name: Setup ccache
         uses: hendrikmuhs/ccache-action@v1
         with:
           # A full build of llvm, clang, lld, and lldb takes about 250MB
@@ -118,8 +113,8 @@ jobs:
           # fit under the 10 GB limit.
           # Default to 2G to workaround: https://github.com/hendrikmuhs/ccache-action/issues/174
           max-size: 2G
-          key: ${{ matrix.compile_cache }}-${{ matrix.os }}
-          variant: ${{ matrix.compile_cache }}
+          key: ${{ matrix.os }}
+          variant: sccache
       - name: Build and Test
         if: "!startsWith(matrix.os, 'windows')"
         env:
@@ -160,6 +155,8 @@ jobs:
 
       - name: Build and Test libclc
         if: "!startsWith(matrix.os, 'windows') && !startsWith(matrix.os, 'macOS') && contains(inputs.projects, 'libclc')"
+        env:
+          LLVM_BUILDDIR: ${{ steps.build-llvm.outputs.llvm-builddir }}
         run: |
           # The libclc tests don't have a generated check target so all we can
           # do is build it.