diff --git a/test/CodeGen/ARM/coalesce-dbgvalue.ll b/test/CodeGen/ARM/coalesce-dbgvalue.ll
index 9ddd66c32ae..a51c6e06236 100644
--- a/test/CodeGen/ARM/coalesce-dbgvalue.ll
+++ b/test/CodeGen/ARM/coalesce-dbgvalue.ll
@@ -6,6 +6,9 @@
 ; instruction which must be updated during
 ; ConnectedVNInfoEqClasses::Distribute().
 
+; FIXME: Investigating.
+; XFAIL: win32
+
 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
 target triple = "thumbv7-apple-ios3.0.0"
 
diff --git a/test/DebugInfo/X86/dbg-subrange.ll b/test/DebugInfo/X86/dbg-subrange.ll
index 62580dc19c9..10244f7189e 100644
--- a/test/DebugInfo/X86/dbg-subrange.ll
+++ b/test/DebugInfo/X86/dbg-subrange.ll
@@ -3,6 +3,9 @@
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.7.2"
 
+; FIXME: Investigating.
+; XFAIL: win32
+
 @s = common global [4294967296 x i8] zeroinitializer, align 16
 ;CHECK: .long	4294967295
 
diff --git a/test/DebugInfo/X86/stringpool.ll b/test/DebugInfo/X86/stringpool.ll
index 02a0fea7e39..45c2b2a2a3d 100644
--- a/test/DebugInfo/X86/stringpool.ll
+++ b/test/DebugInfo/X86/stringpool.ll
@@ -1,6 +1,9 @@
 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=LINUX
 ; RUN: llc -mtriple=x86_64-darwin < %s | FileCheck %s --check-prefix=DARWIN
 
+; FIXME: Investigating.
+; XFAIL: win32
+
 @yyyy = common global i32 0, align 4
 
 !llvm.dbg.cu = !{!0}