message: Remove LLVM_ENABLE_DUMP, it's enabled for debug build by default.
  And it's not needed for optimized and/or release build.
diff: @@ -154,12 +154,6 @@ def checkout_LLVM(component, version_LLVM, target_dir, from_validation, verbose)
  try_do_LLVM(f"clone {component} with tag {GIT_TAG} from {GIT_REPO_BASE} to {target_dir}",
  git_clone_cmd, from_validation, verbose)
  -# ISPC uses LLVM dumps for debug output, so build correctly it requires these functions to be
  -# present in LLVM libraries. In LLVM 5.0 they are not there by default and require explicit enabling.
  -# In later version this functionality is triggered by enabling assertions.
  -def get_llvm_enable_dump_switch(version_LLVM):
  - return " -DLLVM_ENABLE_DUMP=ON "
  -
  def get_llvm_disable_assertions_switch(llvm_disable_assertions):
  if llvm_disable_assertions == True:
  return " -DLLVM_ENABLE_ASSERTIONS=OFF"
  @@ -274,7 +268,6 @@ def build_LLVM(version_LLVM, folder, debug, selfbuild, extra, from_validation, f
  " -DCMAKE_INSTALL_PREFIX=" + llvm_home + "/" + LLVM_BIN_selfbuild +
  " -DCMAKE_BUILD_TYPE=Release" +
  llvm_enable_projects +
  - get_llvm_enable_dump_switch(version_LLVM) +
  get_llvm_disable_assertions_switch(llvm_disable_assertions) +
  " -DLLVM_INSTALL_UTILS=ON" +
  ((" -DGCC_INSTALL_PREFIX=" + gcc_toolchain_path) if gcc_toolchain_path != "" else "") +
  @@ -309,7 +302,6 @@ def build_LLVM(version_LLVM, folder, debug, selfbuild, extra, from_validation, f
  " -DCMAKE_INSTALL_PREFIX=" + llvm_home + "/" + LLVM_BIN +
  " -DCMAKE_BUILD_TYPE=" + build_type +
  llvm_enable_projects +
  - get_llvm_enable_dump_switch(version_LLVM) +
  get_llvm_disable_assertions_switch(llvm_disable_assertions) +
  " -DLLVM_INSTALL_UTILS=ON" +
  ((" -DGCC_INSTALL_PREFIX=" + gcc_toolchain_path) if gcc_toolchain_path != "" else "") +
  @@ -324,7 +316,6 @@ def build_LLVM(version_LLVM, folder, debug, selfbuild, extra, from_validation, f
  'cmake -Thost=x64 -G ' + '\"' + generator + '\"' + ' -DCMAKE_INSTALL_PREFIX="..\\'+ LLVM_BIN + '" ' +
  ' -DCMAKE_BUILD_TYPE=' + build_type +
  llvm_enable_projects +
  - get_llvm_enable_dump_switch(version_LLVM) +
  get_llvm_disable_assertions_switch(llvm_disable_assertions) +
  ' -DLLVM_INSTALL_UTILS=ON' +
  targets_and_common_options +
  