Index: test/ELF/lto/cache.ll
===================================================================
--- test/ELF/lto/cache.ll
+++ test/ELF/lto/cache.ll
@@ -19,6 +19,10 @@
 ; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=128k:prune_interval=0s -o %t3 %t2.o %t.o
 ; RUN: ls %t.cache | count 5
 
+; Increase the age of llvmcache-foo which is large file. It make llvmcache-foo be
+; the oldest time stamp so that it is processed and removed first.
+; RUN: touch -r %t.cache/llvmcache-foo -d '-2 minutes' %t.cache/llvmcache-foo
+
 ; This should remove it.
 ; RUN: ld.lld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=32k:prune_interval=0s -o %t3 %t2.o %t.o
 ; RUN: ls %t.cache | count 4