From d859271d5d7c8b9f105a2163a8272f9072aa50b6 Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Sun, 27 Mar 2016 20:43:02 +0000
Subject: [PATCH] add scrubber for excessive leading whitespace

llvm-svn: 264542
---
 llvm/utils/update_test_checks.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/llvm/utils/update_test_checks.py b/llvm/utils/update_test_checks.py
index f43d12c..e36af39 100755
--- a/llvm/utils/update_test_checks.py
+++ b/llvm/utils/update_test_checks.py
@@ -19,6 +19,7 @@ import re
 
 # RegEx: this is where the magic happens.
 
+SCRUB_LEADING_WHITESPACE_RE = re.compile(r'^(\s+)')
 SCRUB_WHITESPACE_RE = re.compile(r'(?!^(|  \w))[ \t]+', flags=re.M)
 SCRUB_TRAILING_WHITESPACE_RE = re.compile(r'[ \t]+$', flags=re.M)
 SCRUB_X86_SHUFFLES_RE = (
@@ -321,6 +322,8 @@ def main():
       if is_in_function:
         if should_add_line_to_output(input_line, prefix_set) == True:
           # This input line of the function body will go as-is into the output.
+          # Except make leading whitespace uniform: 2 spaces.
+          input_line = SCRUB_LEADING_WHITESPACE_RE.sub(r'  ', input_line)
           output_lines.append(input_line)
         else:
           continue
-- 
2.7.4