Make utils/update_llc_test_checks.py note that the assertions are

autogenerated.

Also update existing test cases which appear to be generated by it and
weren't modified (other than addition of the header) by rerunning it.

llvm-svn: 253917

1 files changed, 7 insertions, 1 deletions

diff --git a/llvm/utils/update_llc_test_checks.py b/llvm/utils/update_llc_test_checks.py
index df01d8973c4..cfdf830907f 100755
--- a/llvm/utils/update_llc_test_checks.py
+++ b/llvm/utils/update_llc_test_checks.py
@@ -73,6 +73,8 @@ def main():
       flags=(re.M | re.S))
   check_prefix_re = re.compile('--check-prefix=(\S+)')
   check_re = re.compile(r'^\s*;\s*([^:]+?)(?:-NEXT|-NOT|-DAG|-LABEL)?:')
+  autogenerated_note = ('; NOTE: Assertions have been autogenerated by '
+                        'utils/update_llc_test_checks.py')
 
   for test in args.tests:
     if args.verbose:
@@ -136,7 +138,7 @@ def main():
           if f in asm[prefix] and asm[prefix][f] != f_asm:
             if prefix == prefixes[-1]:
               print >>sys.stderr, ('WARNING: Found conflicting asm under the '
-                                   'same prefix!')
+                                   'same prefix: %r!' % (prefix,))
             else:
               asm[prefix][f] = None
               continue
@@ -149,6 +151,8 @@ def main():
     if args.verbose:
       print >>sys.stderr, 'Rewriting FileCheck prefixes: %s' % (prefix_set,)
     fixed_lines = []
+    fixed_lines.append(autogenerated_note)
+
     for l in test_lines:
       if is_in_function_start:
         if l.lstrip().startswith(';'):
@@ -191,6 +195,8 @@ def main():
           is_in_function = False
         continue
 
+      if l == autogenerated_note:
+        continue
       fixed_lines.append(l)
 
       m = ir_function_re.match(l)