diff --git a/clang/test/3C/inline_anon_structs.c b/clang/test/3C/inline_anon_structs.c
index d57437446c40..a9458f3e0195 100644
--- a/clang/test/3C/inline_anon_structs.c
+++ b/clang/test/3C/inline_anon_structs.c
@@ -1,9 +1,4 @@
-// RUN: 3c -alltypes -addcr %s -- | FileCheck -match-full-lines -check-prefixes="CHECK_ALL","CHECK" %s
-// RUN: 3c -addcr %s -- | FileCheck -match-full-lines -check-prefixes="CHECK_NOALL","CHECK" %s
-// RUN: 3c -addcr %s -- | %clang -c -fcheckedc-extension -x c -o /dev/null -
-// RUN: 3c -output-postfix=checked -alltypes %s
-// RUN: 3c -alltypes %S/inline_anon_structs.checked.c -- | count 0
-// RUN: rm %S/inline_anon_structs.checked.c
+// RUN: %S/3c-regtest.py --predefined-script common %s -t %t --clang '%clang'
 
 
 /*This code ensures conversion happens as expected when