diff --git a/llvm/lib/Debuginfod/Debuginfod.cpp b/llvm/lib/Debuginfod/Debuginfod.cpp
--- a/llvm/lib/Debuginfod/Debuginfod.cpp
+++ b/llvm/lib/Debuginfod/Debuginfod.cpp
@@ -263,6 +263,12 @@
     if (Code && Code != 200)
       continue;
 
+    Expected<CachePruningPolicy> PruningPolicyOrErr =
+        parseCachePruningPolicy(std::getenv("DEBUGINFOD_CACHE_POLICY"));
+    if (!PruningPolicyOrErr)
+      return PruningPolicyOrErr.takeError();
+    pruneCache(CacheDirectoryPath, *PruningPolicyOrErr);
+
     // Return the path to the artifact on disk.
     return std::string(AbsCachedArtifactPath);
   }