diff --git a/.github/workflows/llvm.yml b/.github/workflows/llvm.yml
index 4aa72fb..caa9086 100644
--- a/.github/workflows/llvm.yml
+++ b/.github/workflows/llvm.yml
@@ -5,7 +5,7 @@ on:
   pull_request:
     branches: [ main ]
 jobs:
-  build:
+  default-compiler: #in sense of CMake's identification - gollvm is indeed Clang oriented
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -15,10 +15,12 @@ jobs:
         run: pwd
       - name: Extracting llc's host target
         run: llc-9 --version | grep CPU
+        #this is a recurrent task - so it's a TODO for forming a dependency
       - name: Compile test tool, for retrieveing CPU features
         run: clang -I/usr/lib/llvm-9/include/ -I/usr/lib/llvm-9/include/llvm-c -L/usr/lib/llvm-9/lib -lLLVM-9 -lstdc++ $GITHUB_WORKSPACE/llvm_cpu_features_investigation.cpp
       - name: Run the CPU feature extractor
         run: ./a.out
+        #
       - name: Trying to check if we could install Ninja
         run: sudo apt install ninja-build -y
       - name: Checking the version of make, automake, autoconf, m4 and Ninja
@@ -26,5 +28,51 @@ jobs:
       - name: Clonning LLVM master branch && gollvm related repos.
         run:  cd $GITHUB_WORKSPACE/clang_test_cpu_features && git clone https://github.com/llvm/llvm-project.git && cd llvm-project/llvm/tools && git clone https://go.googlesource.com/gollvm &&  cd gollvm && git clone https://go.googlesource.com/gofrontend && cd libgo && git clone https://github.com/libffi/libffi.git && git clone https://github.com/ianlancetaylor/libbacktrace.git
       - name: Compiling & linking gollvm
-        run: cd $GITHUB_WORKSPACE/clang_test_cpu_features && mkdir build_release && cd build_release && cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -G Ninja ../llvm-project/llvm && ninja -j16 gollvm && ninja GoBackendCoreTests && ./tools/gollvm/unittests/BackendCore/GoBackendCoreTests && sudo ninja install-gollvm
+        run: cd $GITHUB_WORKSPACE/clang_test_cpu_features && mkdir build_release && cd build_release && cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -G Ninja ../llvm-project/llvm && ninja -j16 gollvm && ninja GoBackendCoreTests && ./tools/gollvm/unittests/BackendCore/GoBackendCoreTests && sudo ninja install-gollvm
+  clang9-build: #in sense of CMake's identification - gollvm is indeed Clang oriented
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get Clang's version
+        run: clang --version
+      - name: Check our path
+        run: pwd
+      - name: Extracting llc's host target
+        run: llc-9 --version | grep CPU
+      - name: Compile test tool, for retrieveing CPU features
+        run: clang -I/usr/lib/llvm-9/include/ -I/usr/lib/llvm-9/include/llvm-c -L/usr/lib/llvm-9/lib -lLLVM-9 -lstdc++ $GITHUB_WORKSPACE/llvm_cpu_features_investigation.cpp
+      - name: Run the CPU feature extractor
+        run: ./a.out
+      - name: Trying to check if we could install Ninja
+        run: sudo apt install ninja-build -y
+      - name: Checking the version of make, automake, autoconf, m4 and Ninja
+        run: make --version && m4 --version && autoconf --version && automake --version && echo "Ninja's version is" && ninja --version
+      - name: Clonning LLVM master branch && gollvm related repos.
+        run:  cd $GITHUB_WORKSPACE/clang_test_cpu_features && git clone https://github.com/llvm/llvm-project.git && cd llvm-project/llvm/tools && git clone https://go.googlesource.com/gollvm &&  cd gollvm && git clone https://go.googlesource.com/gofrontend && cd libgo && git clone https://github.com/libffi/libffi.git && git clone https://github.com/ianlancetaylor/libbacktrace.git
+      - name: Compiling & linking gollvm
+        run: cd $GITHUB_WORKSPACE/clang_test_cpu_features && mkdir build_release && cd build_release && cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -G Ninja ../llvm-project/llvm && ninja -j16 gollvm && ninja GoBackendCoreTests && ./tools/gollvm/unittests/BackendCore/GoBackendCoreTests
 
+  clang10_build: #in sense of CMake's identification - gollvm is indeed Clang oriented
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Clang 10, using dpkg
+        run: wget https://apt.llvm.org/llvm.sh && chmod +x llvm.sh && sudo ./llvm.sh 10
+      - name: Check if Clang 10 is on board
+        run: which clang-10
+      - name: Check our path
+        run: pwd
+      - name: Extracting llc's host target
+        run: llc-9 --version | grep CPU
+      - name: Compile test tool, for retrieveing CPU features
+        run: clang -I/usr/lib/llvm-9/include/ -I/usr/lib/llvm-9/include/llvm-c -L/usr/lib/llvm-9/lib -lLLVM-9 -lstdc++ $GITHUB_WORKSPACE/llvm_cpu_features_investigation.cpp
+      - name: Run the CPU feature extractor
+        run: ./a.out
+      - name: Trying to check if we could install Ninja
+        run: sudo apt install ninja-build -y
+      - name: Checking the version of make, automake, autoconf, m4 and Ninja
+        run: make --version && m4 --version && autoconf --version && automake --version && echo "Ninja's version is" && ninja --version
+      - name: Clonning LLVM master branch && gollvm related repos.
+        run:  cd $GITHUB_WORKSPACE/clang_test_cpu_features && git clone https://github.com/llvm/llvm-project.git && cd llvm-project/llvm/tools && git clone https://go.googlesource.com/gollvm &&  cd gollvm && git clone https://go.googlesource.com/gofrontend && cd libgo && git clone https://github.com/libffi/libffi.git && git clone https://github.com/ianlancetaylor/libbacktrace.git
+      - name: Compiling & linking gollvm
+        run: cd $GITHUB_WORKSPACE/clang_test_cpu_features && mkdir build_release && cd build_release && cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_C_COMPILER=clang-10 -DCMAKE_CXX_COMPILER=clang++-10 -G Ninja ../llvm-project/llvm && ninja -j16 gollvm && ninja GoBackendCoreTests && ./tools/gollvm/unittests/BackendCore/GoBackendCoreTests