---

yaml
---
r: 347293
b: refs/heads/master
c: e25f7ca
h: refs/heads/master
i:
  347291: 12c63a8

Author: swift-ci

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 68948a4871190f9e3168b4bc3e0f901b3891f45b
+refs/heads/master: e25f7cad83df4316e4fbafb2161d450550bdf6be
 refs/heads/master-next: 203b3026584ecad859eb328b2e12490099409cd5
 refs/tags/osx-passed: b6b74147ef8a386f532cf9357a1bde006e552c54
 refs/tags/swift-2.2-SNAPSHOT-2015-12-01-a: 6bb18e013c2284f2b45f5f84f2df2887dc0f7dea

trunk/utils/check-incremental

@@ -74,6 +74,11 @@ def main():
     if VERBOSE:
         print("Reference compilation of " + output_file + ":")
 
+    # As a workaround for rdar://problem/43442957 and rdar://problem/43439465
+    # we have to "warm-up" the clang module cache. Without that in some cases
+    # we end up with small differences in the debug info.
+    compile_and_stat(new_args, output_file)
+
     reference_md5, reference_time = compile_and_stat(new_args, output_file)
 
     subprocess.check_call(["cp", output_file, output_file + ".ref.o"])