[lit] Rename lld and clang lit configs to end in .py

This follows in line with a previous patch of renaming LLVM's.

Working on these files is difficult in certain operating systems
and/or environments that don't like handling python code with a
non .py file extension.

llvm-svn: 313892

1 files changed, 128 insertions, 0 deletions

diff --git a/lld/test/lit.cfg.py b/lld/test/lit.cfg.py
new file mode 100644
index 00000000000..f1ee3852a0a
--- /dev/null
+++ b/lld/test/lit.cfg.py
@@ -0,0 +1,128 @@
+# -*- Python -*-
+
+import os
+import platform
+import re
+import subprocess
+import locale
+
+import lit.formats
+import lit.util
+
+from lit.llvm import llvm_config
+
+# Configuration file for the 'lit' test runner.
+
+# name: The name of this test suite.
+config.name = 'lld'
+
+# testFormat: The test format to use to interpret tests.
+#
+# For now we require '&&' between commands, until they get globally killed and
+# the test runner updated.
+config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
+
+# suffixes: A list of file extensions to treat as test files.
+config.suffixes = ['.ll', '.s', '.test', '.yaml', '.objtxt']
+
+# 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']
+
+# test_source_root: The root path where tests are located.
+config.test_source_root = os.path.dirname(__file__)
+
+config.test_exec_root = os.path.join(config.lld_obj_root, 'test')
+
+# Tweak the PATH to include the tools dir and the scripts dir.
+llvm_config.with_environment('PATH', [config.llvm_tools_dir, config.lld_tools_dir], append_path=True)
+
+llvm_config.with_environment('LD_LIBRARY_PATH', [config.lld_libs_dir, config.llvm_libs_dir], append_path=True)
+
+# For each occurrence of a lld tool name as its own word, replace it
+# with the full path to the build directory holding that tool.  This
+# ensures that we are testing the tools just built and not some random
+# tools that might happen to be in the user's PATH.
+
+# Regex assertions to reject neighbor hyphens/dots (seen in some tests).
+# For example, we want to prefix 'lld' and 'ld.lld' but not the 'lld' inside
+# of 'ld.lld'.
+NoPreJunk = r"(?<!(-|\.|/))"
+NoPostJunk = r"(?!(-|\.))"
+
+config.substitutions.append( (r"\bld.lld\b", 'ld.lld --full-shutdown') )
+
+tool_patterns = [r"\bFileCheck\b",
+                 r"\bnot\b",
+                 NoPreJunk + r"\blld\b" + NoPostJunk,
+                 r"\bld.lld\b",
+                 r"\blld-link\b",
+                 r"\bllvm-as\b",
+                 r"\bllvm-mc\b",
+                 r"\bllvm-nm\b",
+                 r"\bllvm-objdump\b",
+                 r"\bllvm-pdbutil\b",
+                 r"\bllvm-readobj\b",
+                 r"\bobj2yaml\b",
+                 r"\byaml2obj\b"]
+
+for pattern in tool_patterns:
+    # Extract the tool name from the pattern.  This relies on the tool
+    # name being surrounded by \b word match operators.  If the
+    # pattern starts with "| ", include it in the string to be
+    # substituted.
+    tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_\.]+)\\b\W*$",
+                          pattern)
+    tool_pipe = tool_match.group(2)
+    tool_name = tool_match.group(4)
+    tool_path = lit.util.which(tool_name, config.environment['PATH'])
+    if not tool_path:
+        # Warn, but still provide a substitution.
+        lit_config.note('Did not find ' + tool_name + ' in ' + path)
+        tool_path = config.llvm_tools_dir + '/' + tool_name
+    config.substitutions.append((pattern, tool_pipe + tool_path))
+
+# Add site-specific substitutions.
+config.substitutions.append( ('%python', config.python_executable) )
+
+###
+
+# When running under valgrind, we mangle '-vg' onto the end of the triple so we
+# can check it with XFAIL and XTARGET.
+if lit_config.useValgrind:
+    config.target_triple += '-vg'
+
+# Running on ELF based *nix
+if platform.system() in ['FreeBSD', 'Linux']:
+    config.available_features.add('system-linker-elf')
+
+# Set if host-cxxabi's demangler can handle target's symbols.
+if platform.system() not in ['Windows']:
+    config.available_features.add('demangler')
+
+llvm_config.feature_config(
+    [('--build-mode', {'DEBUG' : 'debug'}),
+     ('--assertion-mode', {'ON' : 'asserts'}),
+     ('--targets-built', {'AArch64' : 'aarch64',
+                          'AMDGPU' : 'amdgpu',
+                          'ARM' : 'arm',
+                          'AVR' : 'avr',
+                          'Mips' : 'mips',
+                          'PowerPC' : 'ppc',
+                          'Sparc' : 'sparc',
+                          'X86' : 'x86'})
+    ])
+
+# Set a fake constant version so that we get consitent output.
+config.environment['LLD_VERSION'] = 'LLD 1.0'
+
+# Indirectly check if the mt.exe Microsoft utility exists by searching for
+# cvtres, which always accompanies it.  Alternatively, check if we can use
+# libxml2 to merge manifests.
+if (lit.util.which('cvtres', config.environment['PATH'])) or \
+ (config.llvm_libxml2_enabled == "1"):
+    config.available_features.add('manifest_tool')
+
+if (config.llvm_libxml2_enabled == "1"):
+    config.available_features.add('libxml2')