diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 59d52339ef4..71cae0669c1 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -946,6 +946,9 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     setOperationAction(ISD::FRINT,              MVT::f64,   Legal);
     setOperationAction(ISD::FNEARBYINT,         MVT::f64,   Legal);
 
+    setOperationAction(ISD::FFLOOR,             MVT::v4f32, Legal);
+    setOperationAction(ISD::FFLOOR,             MVT::v2f64, Legal);
+
     // FIXME: Do we need to handle scalar-to-vector here?
     setOperationAction(ISD::MUL,                MVT::v4i32, Legal);
 
@@ -1023,6 +1026,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     setOperationAction(ISD::FMUL,               MVT::v8f32, Legal);
     setOperationAction(ISD::FDIV,               MVT::v8f32, Legal);
     setOperationAction(ISD::FSQRT,              MVT::v8f32, Legal);
+    setOperationAction(ISD::FFLOOR,             MVT::v8f32, Legal);
     setOperationAction(ISD::FNEG,               MVT::v8f32, Custom);
     setOperationAction(ISD::FABS,               MVT::v8f32, Custom);
 
@@ -1031,6 +1035,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
     setOperationAction(ISD::FMUL,               MVT::v4f64, Legal);
     setOperationAction(ISD::FDIV,               MVT::v4f64, Legal);
     setOperationAction(ISD::FSQRT,              MVT::v4f64, Legal);
+    setOperationAction(ISD::FFLOOR,             MVT::v4f64, Legal);
     setOperationAction(ISD::FNEG,               MVT::v4f64, Custom);
     setOperationAction(ISD::FABS,               MVT::v4f64, Custom);
 
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 5dcbf8084a2..3f0e9fdd1e5 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -6210,6 +6210,15 @@ let Predicates = [HasAVX] in {
             (VROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x3))>;
   def : Pat<(f64 (ftrunc FR64:$src)),
             (VROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x3))>;
+
+  def : Pat<(v4f32 (ffloor VR128:$src)),
+            (VROUNDPSr VR128:$src, (i32 0x1))>;
+  def : Pat<(v2f64 (ffloor VR128:$src)),
+            (VROUNDPDr VR128:$src, (i32 0x1))>;
+  def : Pat<(v8f32 (ffloor VR256:$src)),
+            (VROUNDYPSr VR256:$src, (i32 0x1))>;
+  def : Pat<(v4f64 (ffloor VR256:$src)),
+            (VROUNDYPDr VR256:$src, (i32 0x1))>;
 }
 
 defm ROUND  : sse41_fp_unop_rm<0x08, 0x09, "round", f128mem, VR128,
@@ -6219,26 +6228,33 @@ let Constraints = "$src1 = $dst" in
 defm ROUND  : sse41_fp_binop_rm<0x0A, 0x0B, "round",
                                int_x86_sse41_round_ss, int_x86_sse41_round_sd>;
 
-def : Pat<(ffloor FR32:$src),
-          (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x1))>;
-def : Pat<(f64 (ffloor FR64:$src)),
-          (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x1))>;
-def : Pat<(f32 (fnearbyint FR32:$src)),
-          (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0xC))>;
-def : Pat<(f64 (fnearbyint FR64:$src)),
-          (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0xC))>;
-def : Pat<(f32 (fceil FR32:$src)),
-          (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x2))>;
-def : Pat<(f64 (fceil FR64:$src)),
-          (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x2))>;
-def : Pat<(f32 (frint FR32:$src)),
-          (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x4))>;
-def : Pat<(f64 (frint FR64:$src)),
-          (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x4))>;
-def : Pat<(f32 (ftrunc FR32:$src)),
-          (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x3))>;
-def : Pat<(f64 (ftrunc FR64:$src)),
-          (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x3))>;
+let Predicates = [UseSSE41] in {
+  def : Pat<(ffloor FR32:$src),
+            (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x1))>;
+  def : Pat<(f64 (ffloor FR64:$src)),
+            (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x1))>;
+  def : Pat<(f32 (fnearbyint FR32:$src)),
+            (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0xC))>;
+  def : Pat<(f64 (fnearbyint FR64:$src)),
+            (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0xC))>;
+  def : Pat<(f32 (fceil FR32:$src)),
+            (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x2))>;
+  def : Pat<(f64 (fceil FR64:$src)),
+            (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x2))>;
+  def : Pat<(f32 (frint FR32:$src)),
+            (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x4))>;
+  def : Pat<(f64 (frint FR64:$src)),
+            (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x4))>;
+  def : Pat<(f32 (ftrunc FR32:$src)),
+            (ROUNDSSr (f32 (IMPLICIT_DEF)), FR32:$src, (i32 0x3))>;
+  def : Pat<(f64 (ftrunc FR64:$src)),
+            (ROUNDSDr (f64 (IMPLICIT_DEF)), FR64:$src, (i32 0x3))>;
+
+  def : Pat<(v4f32 (ffloor VR128:$src)),
+            (ROUNDPSr VR128:$src, (i32 0x1))>;
+  def : Pat<(v2f64 (ffloor VR128:$src)),
+            (ROUNDPDr VR128:$src, (i32 0x1))>;
+}
 
 //===----------------------------------------------------------------------===//
 // SSE4.1 - Packed Bit Test
diff --git a/test/CodeGen/X86/vec_floor.ll b/test/CodeGen/X86/vec_floor.ll
new file mode 100644
index 00000000000..5e0160bd285
--- /dev/null
+++ b/test/CodeGen/X86/vec_floor.ll
@@ -0,0 +1,38 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -march=x86 -mcpu=corei7-avx | FileCheck %s
+
+
+define <2 x double> @floor_v2f64(<2 x double> %p)
+{
+  ; CHECK: floor_v2f64
+  ; CHECK: vroundpd
+  %t = call <2 x double> @llvm.floor.v2f64(<2 x double> %p)
+  ret <2 x double> %t
+}
+declare <2 x double> @llvm.floor.v2f64(<2 x double> %p)
+
+define <4 x float> @floor_v4f32(<4 x float> %p)
+{
+  ; CHECK: floor_v4f32
+  ; CHECK: vroundps
+  %t = call <4 x float> @llvm.floor.v4f32(<4 x float> %p)
+  ret <4 x float> %t
+}
+declare <4 x float> @llvm.floor.v4f32(<4 x float> %p)
+
+define <4 x double> @floor_v4f64(<4 x double> %p)
+{
+  ; CHECK: floor_v4f64
+  ; CHECK: vroundpd
+  %t = call <4 x double> @llvm.floor.v4f64(<4 x double> %p)
+  ret <4 x double> %t
+}
+declare <4 x double> @llvm.floor.v4f64(<4 x double> %p)
+
+define <8 x float> @floor_v8f32(<8 x float> %p)
+{
+  ; CHECK: floor_v8f32
+  ; CHECK: vroundps
+  %t = call <8 x float> @llvm.floor.v8f32(<8 x float> %p)
+  ret <8 x float> %t
+}
+declare <8 x float> @llvm.floor.v8f32(<8 x float> %p)