Add updated LIT infrastructure

hpvm/test/CMakeLists.txt

@@ -22,13 +22,6 @@ configure_lit_site_cfg(
   MAIN_CONFIG
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py
   )
-configure_lit_site_cfg(
-  ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.site.cfg.py.in
-  ${CMAKE_CURRENT_BINARY_DIR}/Unit/lit.site.cfg.py
-  MAIN_CONFIG
-  ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.cfg.py
-  )
-
 
 # Set the depends list as a variable so that it can grow conditionally.
 # NOTE: Sync the substitutions in test/lit.cfg when adding to this list.

hpvm/test/lit.cfg.py

@@ -59,8 +59,6 @@ llvm_config.with_environment(
 # Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
 llvm_config.with_environment('OCAMLRUNPARAM', 'b')
 
-llvm_config.with_environment('LLVM_SRC_ROOT', config.llvm_src_root)
-
 # Provide the path to asan runtime lib 'libclang_rt.asan_osx_dynamic.dylib' if
 # available. This is darwin specific since it's currently only needed on darwin.