+# For each occurrence of an llvm 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. Thus this list
+# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
+# (llvm_tools_dir in lit parlance).
+ # Don't match 'bugpoint-' or 'clang-'.
+ # Don't match '/clang'.
+if os.pathsep == ';':
+ pathext = os.environ.get('PATHEXT', '').split(';')
+else:
+ pathext = ['']
+for pattern in [r"\bbugpoint\b(?!-)", r"(?<!/)\bclang\b(?!-)",
+ r"\bgold\b",
+ r"\bllc\b", r"\blli\b",
+ r"\bllvm-ar\b", r"\bllvm-as\b",
+ r"\bllvm-bcanalyzer\b", r"\bllvm-config\b",
+ r"\bllvm-diff\b", r"\bllvm-dis\b",
+ r"\bllvm-extract\b", r"\bllvm-ld\b",
+ r"\bllvm-link\b", r"\bllvm-mc\b",
+ r"\bllvm-nm\b", r"\bllvm-prof\b",
+ r"\bllvm-ranlib\b", r"\bllvm-shlib\b",
+ r"\bllvm-stub\b", r"\bllvm2cpp\b",
+ # Don't match '-llvmc'.
+ r"(?<!-)\bllvmc\b", r"\blto\b",
+ # Don't match '.opt', '-opt',
+ # '^opt' or '/opt'.
+ r"\bmacho-dump\b", r"(?<!\.|-|\^|/)\bopt\b",
+ r"\btblgen\b", r"\bFileCheck\b",
+ r"\bFileUpdate\b", r"\bc-index-test\b",
+ r"\bfpcmp\b", r"\bllvm-PerfectShuffle\b",
+ # Handle these specially as they are strings searched
+ # for during testing.
+ r"\| \bcount\b", r"\| \bnot\b"]:
+ # 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.
+ substitution = re.sub(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
+ r"\2" + llvm_tools_dir + "/" + r"\4",
+ pattern)
+ for ext in pathext:
+ substitution_ext = substitution + ext
+ if os.path.exists(substitution_ext):
+ substitution = substitution_ext
+ break
+ config.substitutions.append((pattern, substitution))
+