[mlir] Remove unused properties from the standalone example's lit configuration

[stella.stamenova]

Summary

Since these are unused, I've removed them from the configuration, so that it can be easier to read and follow.

mlir/examples/standalone/test/lit.cfg.py

 
 # test_source_root: The root path where tests are located.
 config.test_source_root = os.path.dirname(__file__)
 
 # test_exec_root: The root path where tests should be run.
 config.test_exec_root = os.path.join(config.standalone_obj_root, 'test')
 
 config.substitutions.append(('%PATH%', config.environment['PATH']))
-config.substitutions.append(('%shlibext', config.llvm_shlib_ext))
 
 llvm_config.with_system_environment(
     ['HOME', 'INCLUDE', 'LIB', 'TMP', 'TEMP'])
 
 llvm_config.use_default_substitutions()
 
 # excludes: A list of directories to exclude from the testsuite. The 'Inputs'
 # subdirectories contain auxiliary inputs for various tests in their parent
 # directories.
 config.excludes = ['Inputs', 'Examples', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
 
 # test_exec_root: The root path where tests should be run.
 config.test_exec_root = os.path.join(config.standalone_obj_root, 'test')
 config.standalone_tools_dir = os.path.join(config.standalone_obj_root, 'bin')
 
 # Tweak the PATH to include the tools dir.
 llvm_config.with_environment('PATH', config.llvm_tools_dir, append_path=True)
 
 tool_dirs = [config.standalone_tools_dir, config.llvm_tools_dir]
 tools = [
     'standalone-capi-test',
     'standalone-opt',
     'standalone-translate',
-    ToolSubst('%PYTHON', config.python_executable, unresolved='ignore'),
 ]
 
 llvm_config.add_tool_substitutions(tools, tool_dirs)
 
 llvm_config.with_environment('PYTHONPATH', [
-    os.path.join(config.mlir_binary_dir, 'python_packages', 'standalone'),
+    os.path.join(config.mlir_obj_dir, 'python_packages', 'standalone'),
 ], append_path=True)

mlir/examples/standalone/test/lit.site.cfg.py.in

 @LIT_SITE_CFG_IN_HEADER@
 
-import sys
-
-config.host_triple = "@LLVM_HOST_TRIPLE@"
-config.target_triple = "@LLVM_TARGET_TRIPLE@"
-config.llvm_src_root = "@LLVM_SOURCE_DIR@"
-config.llvm_obj_root = "@LLVM_BINARY_DIR@"
 config.llvm_tools_dir = lit_config.substitute("@LLVM_TOOLS_DIR@")
-config.llvm_lib_dir = lit_config.substitute("@LLVM_LIBS_DIR@")
-config.llvm_shlib_dir = lit_config.substitute("@SHLIBDIR@")
-config.llvm_shlib_ext = "@SHLIBEXT@"
-config.llvm_exe_ext = "@EXEEXT@"
 config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
-config.mlir_binary_dir = "@MLIR_BINARY_DIR@"
+config.mlir_obj_dir = "@MLIR_BINARY_DIR@"
 config.python_executable = "@Python3_EXECUTABLE@"
 config.enable_bindings_python = @MLIR_ENABLE_BINDINGS_PYTHON@
-config.gold_executable = "@GOLD_EXECUTABLE@"
-config.ld64_executable = "@LD64_EXECUTABLE@"
-config.enable_shared = @ENABLE_SHARED@
-config.enable_assertions = @ENABLE_ASSERTIONS@
-config.targets_to_build = "@TARGETS_TO_BUILD@"
-config.native_target = "@LLVM_NATIVE_ARCH@"
-config.llvm_bindings = "@LLVM_BINDINGS@".split(' ')
-config.host_os = "@HOST_OS@"
-config.host_cc = "@HOST_CC@"
-config.host_cxx = "@HOST_CXX@"
-config.enable_libcxx = "@LLVM_ENABLE_LIBCXX@"
-# Note: ldflags can contain double-quoted paths, so must use single quotes here.
-config.host_ldflags = '@HOST_LDFLAGS@'
-config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
-config.llvm_host_triple = '@LLVM_HOST_TRIPLE@'
-config.host_arch = "@HOST_ARCH@"
 config.standalone_src_root = "@CMAKE_SOURCE_DIR@"
 config.standalone_obj_root = "@CMAKE_BINARY_DIR@"
 
 import lit.llvm
 lit.llvm.initialize(lit_config, config)
 
 # Let the main config do the real work.
 lit_config.load_config(config, "@CMAKE_SOURCE_DIR@/test/lit.cfg.py")

mlir/examples/standalone/test/python/smoketest.py

-# RUN: %PYTHON %s | FileCheck %s
+# RUN: %python %s | FileCheck %s
 
 from mlir_standalone.ir import *
 from mlir_standalone.dialects import (
   builtin as builtin_d,
   standalone as standalone_d
 )
 
 with Context():
   standalone_d.register_dialect()
   module = Module.parse("""
     %0 = arith.constant 2 : i32
     %1 = standalone.foo %0 : i32
     """)
   # CHECK: %[[C:.*]] = arith.constant 2 : i32
   # CHECK: standalone.foo %[[C]] : i32
   print(str(module))