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 will give it the oldest time stamp
+; so that it is processed and removed first.
+; RUN: %python -c 'import os,sys,time; t=time.time()-120; os.utime(sys.argv[1],(t,t))' %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
Index: test/wasm/lto/cache.ll
===================================================================
--- test/wasm/lto/cache.ll
+++ test/wasm/lto/cache.ll
@@ -17,6 +17,10 @@
 ; RUN: wasm-ld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=128k:prune_interval=0s -o %t.wasm %t2.o %t.o
 ; RUN: ls %t.cache | count 5
 
+; Increase the age of llvmcache-foo, which will give it the oldest time stamp
+; so that it is processed and removed first.
+; RUN: %python -c 'import os,sys,time; t=time.time()-120; os.utime(sys.argv[1],(t,t))' %t.cache/llvmcache-foo
+
 ; This should remove it.
 ; RUN: wasm-ld --thinlto-cache-dir=%t.cache --thinlto-cache-policy cache_size_bytes=32k:prune_interval=0s -o %t.wasm %t2.o %t.o
 ; RUN: ls %t.cache | count 4