[UpdateTestChecks] Emit warning when invalid value for -check-prefix(es) option
Summary:
The script is silent for the following issue:
FileCheck %s -check-prefix=CHECK,POPCOUNT
FileCheck will catch it later, but I think we can warn here too.
Now it warns:
./update_llc_test_checks.py file.ll
WARNING: Supplied prefix 'CHECK,POPCOUNT' is invalid. Prefix must contain only alphanumeric characters, hyphens and underscores. Did you mean --check-prefixes=CHECK,POPCOUNT?
Reviewers: lebedev.ri, spatel, RKSimon, craig.topper, nikic, gbedwell
Reviewed By: RKSimon
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64589
llvm-svn: 367244
diff --git a/llvm/utils/update_llc_test_checks.py b/llvm/utils/update_llc_test_checks.py
index 0936a44..9f74a2e 100755
--- a/llvm/utils/update_llc_test_checks.py
+++ b/llvm/utils/update_llc_test_checks.py
@@ -89,6 +89,7 @@
filecheck_cmd = ''
if len(commands) > 1:
filecheck_cmd = commands[1]
+ common.verify_filecheck_prefixes(filecheck_cmd)
if not llc_cmd.startswith('llc '):
print('WARNING: Skipping non-llc RUN line: ' + l, file=sys.stderr)
continue