Gate the change with a new UTC version

Author: Camsyn

llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/switch_case.ll

@@ -1,4 +1,3 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
 ; RUN: opt < %s -S | FileCheck %s
 
 ; Test whether the UTC format the switch-cases correctly, which requires TWO extra spaces.

llvm/test/tools/UpdateTestChecks/update_test_checks/switch_case.test

@@ -1,3 +1,3 @@
 ## switch_case test checking that update_test_checks.py works correctly
-# RUN: cp -f %S/Inputs/switch_case.ll %t.ll && %update_test_checks %t.ll
+# RUN: cp -f %S/Inputs/switch_case.ll %t.ll && %update_test_checks %t.ll --version 7
 # RUN: diff -u %t.ll %S/Inputs/switch_case.ll.expected

llvm/utils/UpdateTestChecks/common.py

@@ -29,6 +29,7 @@
    'none' and 'all'. 'smart' is the default.
 5: Basic block labels are matched by FileCheck expressions
 6: The semantics of TBAA checks has been incorporated in the check lines.
+7: Indent switch-cases correctly.
 """
 DEFAULT_VERSION = 6
 

llvm/utils/update_test_checks.py

@@ -265,7 +265,10 @@ def update_test(ti: common.TestInfo):
                     " " * 4
                     if (
                         common.IS_DEBUG_RECORD_RE.match(input_line)
-                        or common.IS_SWITCH_CASE_RE.match(input_line)
+                        or (
+                            ti.args.version > 6
+                            and common.IS_SWITCH_CASE_RE.match(input_line)
+                        )
                     )
                     else " " * 2
                 )