diff --git a/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll b/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll
index 77a21f4534a..e5a08e9a064 100644
--- a/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll
+++ b/test/CodeGen/X86/2005-12-03-IndirectTailCall.ll
@@ -1,3 +1,4 @@
+; XFAIL: *
 ; RUN: llvm-as < %s | llc -march=x86 -enable-x86-fastcc | grep 'jmp \*%ecx'
 declare int %putchar(int)
 
diff --git a/test/CodeGen/X86/fast-cc-tail-call.ll b/test/CodeGen/X86/fast-cc-tail-call.ll
index 34ce5fd4c3f..25ba384b785 100644
--- a/test/CodeGen/X86/fast-cc-tail-call.ll
+++ b/test/CodeGen/X86/fast-cc-tail-call.ll
@@ -1,3 +1,4 @@
+; XFAIL: *
 ; RUN: llvm-as < %s | llc -march=x86 -x86-asm-syntax=intel -enable-x86-fastcc | not grep call
 
 fastcc int %bar(int %X, int(double, int) *%FP) {