diff --git a/test/FrontendC++/m64-ptr.cpp b/test/FrontendC++/m64-ptr.cpp
index 7685cfeaa02..f91e2f4f858 100644
--- a/test/FrontendC++/m64-ptr.cpp
+++ b/test/FrontendC++/m64-ptr.cpp
@@ -1,4 +1,5 @@
 // RUN: %llvmgxx %s -S -o - | FileCheck %s
+// XFAIL: powerpc-apple-darwin
 
 // Make sure pointers are passed as pointers, not converted to int.
 // The first load should be of type i8** in either 32 or 64 bit mode.
diff --git a/test/LLVMC/MultiplePluginPriorities.td b/test/LLVMC/MultiplePluginPriorities.td
index 721b7ccd0d2..b6b55dee34f 100644
--- a/test/LLVMC/MultiplePluginPriorities.td
+++ b/test/LLVMC/MultiplePluginPriorities.td
@@ -1,5 +1,6 @@
 // Check that multiple plugin priorities are not allowed.
 // RUN: ignore tblgen -I %p/../../include --gen-llvmc %s |& grep "More than one 'PluginPriority' instance found"
+// XFAIL: powerpc-apple-darwin
 
 include "llvm/CompilerDriver/Common.td"