Abort configuration on SPIRV patching failure

Author: intel-kzhavoro

IGC/VectorCompiler/cmake/spirv.cmake

@@ -35,16 +35,28 @@ function(apply_patches repo_dir patches_dir base_revision target_branch)
         execute_process( # Create the target branch
             COMMAND ${GIT_EXECUTABLE} checkout -b ${target_branch} ${base_revision}
             WORKING_DIRECTORY ${repo_dir}
+            RESULT_VARIABLE es
         )
+        if(NOT es EQUAL 0)
+          message(FATAL_ERROR "Could not checkout base revision")
+        endif()
         execute_process( # Apply the pathces
             COMMAND ${GIT_EXECUTABLE} am --3way --ignore-whitespace ${patches}
             WORKING_DIRECTORY ${repo_dir}
+            RESULT_VARIABLE es
         )
+        if(NOT es EQUAL 0)
+          message(FATAL_ERROR "Could not apply SPIRV patches")
+        endif()
     else() # The target branch already exists
         execute_process( # Check it out
             COMMAND ${GIT_EXECUTABLE} checkout ${target_branch}
             WORKING_DIRECTORY ${repo_dir}
+            RESULT_VARIABLE es
         )
+        if(NOT es EQUAL 0)
+          message(FATAL_ERROR "Could not checkout branch")
+        endif()
     endif()
 endfunction()