Index: test/tools/gold/X86/thinlto_archive.ll
===================================================================
--- test/tools/gold/X86/thinlto_archive.ll
+++ test/tools/gold/X86/thinlto_archive.ll
@@ -4,6 +4,7 @@
 ; RUN: opt -module-summary %p/Inputs/thinlto_archive2.ll -o %t3.o
 
 ; Generate the static library
+; RUN: rm -f %t.a
 ; RUN: llvm-ar -format=gnu r %t.a %t2.o %t3.o
 
 ; Test importing from archive library via gold, using jobs=1 to ensure
Index: test/tools/lto/no-bitcode.s
===================================================================
--- test/tools/lto/no-bitcode.s
+++ test/tools/lto/no-bitcode.s
@@ -1,5 +1,6 @@
 ; REQUIRES: arm-registered-target
 ; libLTO.dylib shouldn't assert on invalid inputs.
 ; RUN: llvm-mc -triple=arm64-apple-ios7.0.0 -filetype=obj -o %t.o
+; RUN: rm -f %t.a
 ; RUN: llvm-ar r %t.a %t.o
 ; RUN: %ld64 -lto_library %llvmshlibdir/libLTO.dylib -arch x86_64 -dylib -mllvm -O0 -o %t.dylib %t.a