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-rw-r--r--tools/c-index-test/c-index-test.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index ef6bfb8a79..1b2f036fa4 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -34,6 +34,8 @@ static unsigned getDefaultParsingOptions() {
if (getenv("CINDEXTEST_EDITING"))
options |= clang_defaultEditingTranslationUnitOptions();
+ if (getenv("CINDEXTEST_COMPLETION_CACHING"))
+ options |= CXTranslationUnit_CacheCompletionResults;
return options;
}