Index: test/Modules/crash-vfs-path-emptydir-entries.m
===================================================================
--- test/Modules/crash-vfs-path-emptydir-entries.m
+++ test/Modules/crash-vfs-path-emptydir-entries.m
@@ -8,7 +8,7 @@
 
 // RUN: rm -rf %t
 // RUN: mkdir -p %t/i %t/m %t %t/sysroot
-// RUN: cp -a %S/Inputs/crash-recovery/usr %t/i/
+// RUN: cp -R %S/Inputs/crash-recovery/usr %t/i/
 
 // RUN: not env FORCE_CLANG_DIAGNOSTICS_CRASH= TMPDIR=%t TEMP=%t TMP=%t \
 // RUN: %clang -fsyntax-only %s -I %/t/i -isysroot %/t/sysroot/ \
Index: test/Modules/crash-vfs-path-symlink-component.m
===================================================================
--- test/Modules/crash-vfs-path-symlink-component.m
+++ test/Modules/crash-vfs-path-symlink-component.m
@@ -8,7 +8,7 @@
 
 // RUN: rm -rf %t
 // RUN: mkdir -p %t/i %t/m %t %t/sysroot
-// RUN: cp -a %S/Inputs/crash-recovery/usr %t/i/
+// RUN: cp -R %S/Inputs/crash-recovery/usr %t/i/
 // RUN: ln -s include/tcl-private %t/i/usr/x
 
 // RUN: not env FORCE_CLANG_DIAGNOSTICS_CRASH= TMPDIR=%t TEMP=%t TMP=%t \
Index: test/Modules/crash-vfs-path-symlink-topheader.m
===================================================================
--- test/Modules/crash-vfs-path-symlink-topheader.m
+++ test/Modules/crash-vfs-path-symlink-topheader.m
@@ -8,7 +8,7 @@
 
 // RUN: rm -rf %t
 // RUN: mkdir -p %t/i %t/m %t %t/sysroot
-// RUN: cp -a %S/Inputs/crash-recovery/usr %t/i/
+// RUN: cp -R %S/Inputs/crash-recovery/usr %t/i/
 // RUN: rm -f %t/i/usr/include/pthread_impl.h
 // RUN: ln -s pthread/pthread_impl.h %t/i/usr/include/pthread_impl.h
 
Index: test/Modules/crash-vfs-umbrella-frameworks.m
===================================================================
--- test/Modules/crash-vfs-umbrella-frameworks.m
+++ test/Modules/crash-vfs-umbrella-frameworks.m
@@ -5,7 +5,7 @@
 
 // RUN: rm -rf %t
 // RUN: mkdir -p %t/i %t/m %t
-// RUN: cp -a %S/Inputs/crash-recovery/Frameworks %t/i/
+// RUN: cp -R %S/Inputs/crash-recovery/Frameworks %t/i/
 // RUN: mkdir -p %t/i/Frameworks/A.framework/Frameworks
 // RUN: ln -s ../../B.framework %t/i/Frameworks/A.framework/Frameworks/B.framework
 
Index: test/VFS/umbrella-framework-import-skipnonexist.m
===================================================================
--- test/VFS/umbrella-framework-import-skipnonexist.m
+++ test/VFS/umbrella-framework-import-skipnonexist.m
@@ -5,7 +5,7 @@
 
 // RUN: rm -rf %t
 // RUN: mkdir -p %t/vdir %t/outdir %t/cache
-// RUN: cp -a %S/Inputs/Bar.framework %t/outdir/
+// RUN: cp -R %S/Inputs/Bar.framework %t/outdir/
 //
 // RUN: sed -e "s:VDIR:%t/vdir:g" -e "s:OUT_DIR:%t/outdir:g" %S/Inputs/bar-headers.yaml > %t/vdir/bar-headers.yaml
 // RUN: rm -f %t/outdir/Bar.framework/Headers/B.h