diff --git a/lib/Target/X86/X86InstrMMX.td b/lib/Target/X86/X86InstrMMX.td
index 7a4f6ead892..e1cca71a988 100644
--- a/lib/Target/X86/X86InstrMMX.td
+++ b/lib/Target/X86/X86InstrMMX.td
@@ -13,6 +13,15 @@
 //
 //===----------------------------------------------------------------------===//
 
+// Some 'special' instructions
+def IMPLICIT_DEF_VR64 : I<0, Pseudo, (ops VR64:$dst),
+                          "#IMPLICIT_DEF $dst",
+                          [(set VR64:$dst, (v8i8 (undef)))]>,
+                        Requires<[HasMMX]>;
+
+def : Pat<(v4i16 (undef)), (IMPLICIT_DEF_VR64)>,  Requires<[HasMMX]>;
+def : Pat<(v2i32 (undef)), (IMPLICIT_DEF_VR64)>,  Requires<[HasMMX]>;
+
 // Move Instructions
 def MOVD64rr : I<0x6E, MRMSrcReg, (ops VR64:$dst, R32:$src),
                  "movd {$src, $dst|$dst, $src}", []>, TB,
@@ -33,3 +42,4 @@ def MOVQ64rm : I<0x6F, MRMSrcMem, (ops VR64:$dst, i64mem:$src),
 def MOVQ64mr : I<0x7F, MRMDestMem, (ops i64mem:$dst, VR64:$src),
                  "movq {$src, $dst|$dst, $src}", []>, TB,
                Requires<[HasMMX]>;
+
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 66daddbb78e..92412cfd63f 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -348,6 +348,10 @@ def IMPLICIT_DEF_VR128 : I<0, Pseudo, (ops VR128:$dst),
                          Requires<[HasSSE1]>;
 
 def : Pat<(v2f64 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
+def : Pat<(v16i8 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
+def : Pat<(v8i16 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
+def : Pat<(v4i32 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
+def : Pat<(v2i64 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
 
 // Move Instructions
 def MOVAPSrr : PSI<0x28, MRMSrcReg, (ops VR128:$dst, VR128:$src),
@@ -694,19 +698,6 @@ def UNPCKLPDrm : PDI<0x14, MRMSrcMem,
 // SSE integer instructions
 //===----------------------------------------------------------------------===//
 
-// Some 'special' instructions
-def IMPLICIT_DEF_VR64 : I<0, Pseudo, (ops VR64:$dst),
-                          "#IMPLICIT_DEF $dst",
-                          [(set VR64:$dst, (v8i8 (undef)))]>,
-                        Requires<[HasMMX]>;
-
-def : Pat<(v4i16 (undef)), (IMPLICIT_DEF_VR64)>,  Requires<[HasMMX]>;
-def : Pat<(v2i32 (undef)), (IMPLICIT_DEF_VR64)>,  Requires<[HasMMX]>;
-def : Pat<(v16i8 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
-def : Pat<(v8i16 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
-def : Pat<(v4i32 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
-def : Pat<(v2i64 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
-
 // Move Instructions
 def MOVD128rr : PDI<0x6E, MRMSrcReg, (ops VR128:$dst, R32:$src),
                   "movd {$src, $dst|$dst, $src}", []>;