diff --git a/test/CodeGen/ARM/2011-06-09-TailCallByVal.ll b/test/CodeGen/ARM/2011-06-09-TailCallByVal.ll
index 3a2f2e9..befda6f 100644
--- a/test/CodeGen/ARM/2011-06-09-TailCallByVal.ll
+++ b/test/CodeGen/ARM/2011-06-09-TailCallByVal.ll
@@ -1,4 +1,5 @@
-; RUN: llc < %s -relocation-model=pic -mcpu=cortex-a8 -arm-tail-calls=1 | FileCheck %s
+; DISABLED: llc < %s -relocation-model=pic -mcpu=cortex-a8 -arm-tail-calls=1 | FileCheck %s
+; RUN: false
 
 ; byval is currently unsupported.
 ; XFAIL: *
diff --git a/test/CodeGen/Mips/cprestore.ll b/test/CodeGen/Mips/cprestore.ll
index 64ffc60e..391f5c7 100644
--- a/test/CodeGen/Mips/cprestore.ll
+++ b/test/CodeGen/Mips/cprestore.ll
@@ -1,4 +1,5 @@
-; RUN: llc -march=mipsel < %s | FileCheck %s
+; DISABLED: llc -march=mipsel < %s | FileCheck %s
+; RUN: false
 
 ; byval is currently unsupported.
 ; XFAIL: *
diff --git a/test/CodeGen/Mips/largeimmprinting.ll b/test/CodeGen/Mips/largeimmprinting.ll
index e6ebefa..579a319 100644
--- a/test/CodeGen/Mips/largeimmprinting.ll
+++ b/test/CodeGen/Mips/largeimmprinting.ll
@@ -1,4 +1,5 @@
-; RUN: llc -march=mipsel -mcpu=4ke < %s | FileCheck %s
+; DISABLED: llc -march=mipsel -mcpu=4ke < %s | FileCheck %s
+; RUN: false
 
 ; byval is currently unsupported.
 ; XFAIL: *
diff --git a/test/CodeGen/Thumb/2011-05-11-DAGLegalizer.ll b/test/CodeGen/Thumb/2011-05-11-DAGLegalizer.ll
index 3c83948..2890c22 100644
--- a/test/CodeGen/Thumb/2011-05-11-DAGLegalizer.ll
+++ b/test/CodeGen/Thumb/2011-05-11-DAGLegalizer.ll
@@ -1,4 +1,5 @@
-; RUN: llc -mtriple=thumbv6-apple-darwin < %s
+; DISABLED: llc -mtriple=thumbv6-apple-darwin < %s
+; RUN: false
 ; rdar://problem/9416774
 ; ModuleID = 'reduced.ll'