Added simple host build of UnitCL with sccache

.github/workflows/docs.yml

@@ -8,7 +8,8 @@ name: Build documentation
 # order to satisfy our current cmake configurations e.g. spirv-tools
 
 on:
- pull_request:
+# temporarily disable for testing purposes
+#  pull_request:
 
   # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

.github/workflows/merge_request.yml

@@ -0,0 +1,59 @@
+# Simple workflow for running merge request tests
+name: Merge Request tester
+
+on:
+ # temporary
+ push:
+
+ pull_request:
+
+  # Allows you to run this workflow manually from the Actions tab
+ workflow_dispatch:
+
+jobs:
+  build_ca_host_x86_64:
+    runs-on: ubuntu-22.04
+
+    steps:
+
+      # - name: Install prerequisites
+      #   run: |
+      #     sudo apt-get install -y spirv-tools
+      #     pip install lit
+
+      - name: Install Ninja
+        uses: llvm/actions/install-ninja@main
+
+      - name: Checkout repo
+        uses: actions/checkout@v3
+        with:
+          repository: codeplaysoftware/oneapi-construction-kit  
+
+      - name: Setup ccache
+        uses: hendrikmuhs/[email protected]
+        with:
+          max-size: 50M
+          key: sccache-build_ca_host_x86_64
+          variant: sccache
+
+      - name: load llvm
+        uses: actions/cache/restore@v3
+        with:
+          path: llvm_install/**
+          key: llvm-ubuntu-22.04-v16-RelAssert 
+          fail-on-cache-miss: true
+
+      - name: check directories for llvm
+        run:
+          find ${{github.workspace}}/llvm_install/lib/cmake
+
+      - name: build_x86-llvm15-cl3.0-release
+        uses: ./.github/actions/build_ock
+        with:
+          build_type: Release
+          mux_target: host         
+
+      - name: build_ca
+        run:
+          ninja -C build oclc UnitCL UnitCargo UnitMux UnitCompiler UnitMD FuzzCL
+                   clVectorAddition veczc