diff --git a/lib/Target/X86/X86InstrMMX.td b/lib/Target/X86/X86InstrMMX.td
index e1203e2c2a3..1c81c5e981a 100644
--- a/lib/Target/X86/X86InstrMMX.td
+++ b/lib/Target/X86/X86InstrMMX.td
@@ -605,22 +605,9 @@ let AddedComplexity = 10 in {
 def : Pat<(v1i64 (and (xor VR64:$src1, (bc_v1i64 (v2i32 immAllOnesV))),
                   VR64:$src2)),
           (MMX_PANDNrr VR64:$src1, VR64:$src2)>;
-def : Pat<(v1i64 (and (xor VR64:$src1, (bc_v1i64 (v4i16 immAllOnesV_bc))),
-                  VR64:$src2)),
-          (MMX_PANDNrr VR64:$src1, VR64:$src2)>;
-def : Pat<(v1i64 (and (xor VR64:$src1, (bc_v1i64 (v8i8  immAllOnesV_bc))),
-                  VR64:$src2)),
-          (MMX_PANDNrr VR64:$src1, VR64:$src2)>;
-
 def : Pat<(v1i64 (and (xor VR64:$src1, (bc_v1i64 (v2i32 immAllOnesV))),
                   (load addr:$src2))),
           (MMX_PANDNrm VR64:$src1, addr:$src2)>;
-def : Pat<(v1i64 (and (xor VR64:$src1, (bc_v1i64 (v4i16 immAllOnesV_bc))),
-                  (load addr:$src2))),
-          (MMX_PANDNrm VR64:$src1, addr:$src2)>;
-def : Pat<(v1i64 (and (xor VR64:$src1, (bc_v1i64 (v8i8  immAllOnesV_bc))),
-                  (load addr:$src2))),
-          (MMX_PANDNrm VR64:$src1, addr:$src2)>;
 
 // Move MMX to lower 64-bit of XMM
 def : Pat<(v2i64 (scalar_to_vector (i64 (bitconvert (v8i8 VR64:$src))))),