[compiler-rt] fix(compiler-rt/**.py): fix invalid escape sequences (PR #94030)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Eisuke Kawashima (e-kwsm)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/94030.diff


1 Files Affected:

- (modified) compiler-rt/lib/asan/scripts/asan_symbolize.py (+2-2) 


``````````diff
diff --git a/compiler-rt/lib/asan/scripts/asan_symbolize.py b/compiler-rt/lib/asan/scripts/asan_symbolize.py
index b08769614aeb1..058a1614b55e6 100755
--- a/compiler-rt/lib/asan/scripts/asan_symbolize.py
+++ b/compiler-rt/lib/asan/scripts/asan_symbolize.py
@@ -316,7 +316,7 @@ def symbolize(self, addr, binary, offset):
         #   * For C functions atos omits parentheses and argument types.
         #   * For C++ functions the function name (i.e., `foo` above) may contain
         #     templates which may contain parentheses.
-        match = re.match("^(.*) \(in (.*)\) \((.*:\d*)\)$", atos_line)
+        match = re.match(r"^(.*) \(in (.*)\) \((.*:\d*)\)$", atos_line)
         logging.debug("atos_line: %s", atos_line)
         if match:
             function_name = match.group(1)
@@ -541,7 +541,7 @@ def process_line_posix(self, line):
         # names in the regex because it could be an
         # Objective-C or C++ demangled name.
         stack_trace_line_format = (
-            "^( *#([0-9]+) *)(0x[0-9a-f]+) *(?:in *.+)? *\((.*)\+(0x[0-9a-f]+)\)"
+            r"^( *#([0-9]+) *)(0x[0-9a-f]+) *(?:in *.+)? *\((.*)\+(0x[0-9a-f]+)\)"
         )
         match = re.match(stack_trace_line_format, line)
         if not match:

``````````

</details>


https://github.com/llvm/llvm-project/pull/94030