[mlir] Use 'native' instead of 'llvm_has_native_target' in the mlir tests

[stella.stamenova]

Summary

The tests actually require the target triple to match the host, rather than just having the host in the list of available targets. This change removes llvm_has_native_target and instead uses the native feature from the lit configuration.

[stella.stamenova]

Make clang-format happy

mlir/test/CAPI/execution_engine.c

 //===- execution_engine.c - Test for the C bindings for the MLIR JIT-------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM
 // Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 /* RUN: mlir-capi-execution-engine-test 2>&1 | FileCheck %s
  */
-/* REQUIRES: llvm_has_native_target
+/* REQUIRES: native
  */
 
 #include "mlir-c/Conversion.h"
 #include "mlir-c/ExecutionEngine.h"
 #include "mlir-c/IR.h"
 #include "mlir-c/Registration.h"
 
 #include <assert.h>
 #include <math.h>

mlir/test/lit.cfg.py

 llvm_config.add_tool_substitutions(tools, tool_dirs)
 
 
 # FileCheck -enable-var-scope is enabled by default in MLIR test
 # This option avoids to accidentally reuse variable across -LABEL match,
 # it can be explicitly opted-in by prefixing the variable name with $
 config.environment['FILECHECK_OPTS'] = "-enable-var-scope --allow-unused-prefixes=false"
 
-
-if config.native_target in config.targets_to_build:
-    config.available_features.add('llvm_has_native_target')
-
-
-
 # Add the python path for both the source and binary tree.
 # Note that presently, the python sources come from the source tree and the
 # binaries come from the build tree. This should be unified to the build tree
 # by copying/linking sources to build.
 if config.enable_bindings_python:
     llvm_config.with_environment('PYTHONPATH', [
         os.path.join(config.mlir_obj_root, 'python_packages', 'mlir_core'),
         os.path.join(config.mlir_obj_root, 'python_packages', 'mlir_test'),
     ], append_path=True)
 
 if config.enable_assertions:
     config.available_features.add('asserts')
 else:
     config.available_features.add('noasserts')

mlir/test/mlir-cpu-runner/lit.local.cfg

 import sys
 
 # FIXME: llvm orc does not support the COFF rtld.
 if sys.platform == 'win32':
     config.unsupported = True
 
 # MSAN does not work with JIT.
 if 'msan' in config.available_features:
   config.unsupported = True
 
-# Requires the native target to be configured in.
-if 'llvm_has_native_target' not in config.available_features:
+# Requires native execution.
+if 'native' not in config.available_features:
     config.unsupported = True
 

mlir/test/python/execution_engine.py

 # RUN: %PYTHON %s 2>&1 | FileCheck %s
-# REQUIRES: llvm_has_native_target
+# REQUIRES: native
 import gc, sys
 from mlir.ir import *
 from mlir.passmanager import *
 from mlir.execution_engine import *
 from mlir.runtime import *
 
 
 # Log everything to stderr and flush so that we have a unified stream to match