Index: lib/Target/X86/X86InstrSSE.td
===================================================================
--- lib/Target/X86/X86InstrSSE.td
+++ lib/Target/X86/X86InstrSSE.td
@@ -5183,14 +5183,14 @@
          !strconcat(OpcodeStr, "\t{$src2, $dst|$dst, $src2}"),
          !strconcat(OpcodeStr, "\t{$src2, $src1, $dst|$dst, $src1, $src2}")),
       [(set RC:$dst, (vt (OpNode RC:$src1, RC:$src2)))], IIC_SSE_HADDSUB_RR>,
-      Sched<[WriteFAdd]>;
+      Sched<[WriteFHAdd]>;
 
   def rm : S3DI<o, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
        !if(Is2Addr,
          !strconcat(OpcodeStr, "\t{$src2, $dst|$dst, $src2}"),
          !strconcat(OpcodeStr, "\t{$src2, $src1, $dst|$dst, $src1, $src2}")),
       [(set RC:$dst, (vt (OpNode RC:$src1, (ld_frag addr:$src2))))],
-        IIC_SSE_HADDSUB_RM>, Sched<[WriteFAddLd, ReadAfterLd]>;
+        IIC_SSE_HADDSUB_RM>, Sched<[WriteFHAddLd, ReadAfterLd]>;
 }
 multiclass S3_Int<bits<8> o, string OpcodeStr, ValueType vt, RegisterClass RC,
                   X86MemOperand x86memop, SDNode OpNode, PatFrag ld_frag,
@@ -5200,14 +5200,14 @@
          !strconcat(OpcodeStr, "\t{$src2, $dst|$dst, $src2}"),
          !strconcat(OpcodeStr, "\t{$src2, $src1, $dst|$dst, $src1, $src2}")),
       [(set RC:$dst, (vt (OpNode RC:$src1, RC:$src2)))], IIC_SSE_HADDSUB_RR>,
-      Sched<[WriteFAdd]>;
+      Sched<[WriteFHAdd]>;
 
   def rm : S3I<o, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
        !if(Is2Addr,
          !strconcat(OpcodeStr, "\t{$src2, $dst|$dst, $src2}"),
          !strconcat(OpcodeStr, "\t{$src2, $src1, $dst|$dst, $src1, $src2}")),
       [(set RC:$dst, (vt (OpNode RC:$src1, (ld_frag addr:$src2))))],
-        IIC_SSE_HADDSUB_RM>, Sched<[WriteFAddLd, ReadAfterLd]>;
+        IIC_SSE_HADDSUB_RM>, Sched<[WriteFHAddLd, ReadAfterLd]>;
 }
 
 let Predicates = [HasAVX] in {
@@ -5310,7 +5310,7 @@
 // SSSE3 - Packed Binary Operator Instructions
 //===---------------------------------------------------------------------===//
 
-let Sched = WriteVecALU in {
+let Sched = WritePHAdd in {
 def SSE_PHADDSUBD : OpndItins<
   IIC_SSE_PHADDSUBD_RR, IIC_SSE_PHADDSUBD_RM
 >;
Index: lib/Target/X86/X86SchedHaswell.td
===================================================================
--- lib/Target/X86/X86SchedHaswell.td
+++ lib/Target/X86/X86SchedHaswell.td
@@ -1488,6 +1488,39 @@
 
 //-- Arithmetic instructions --//
 
+////////////////////////////////////////////////////////////////////////////////
+// Horizontal add/sub  instructions.
+////////////////////////////////////////////////////////////////////////////////
+
+// HADD, HSUB PS/PD
+// x,x / v,v,v.
+def : WriteRes<WriteFHAdd, [HWPort1, HWPort5]> {
+  let Latency = 5;
+  let NumMicroOps = 3;
+  let ResourceCycles = [1, 2];
+}
+
+// x,m / v,v,m.
+def : WriteRes<WriteFHAddLd, [HWPort1, HWPort5, HWPort23]> {
+  let Latency = 9;
+  let NumMicroOps = 4;
+  let ResourceCycles = [1, 2, 1];
+}
+
+// PHADD|PHSUB (S) W/D.
+// v <- v,v.
+def : WriteRes<WritePHAdd, [HWPort1, HWPort5]> {
+  let Latency = 3;
+  let NumMicroOps = 3;
+  let ResourceCycles = [1, 2];
+}
+// v <- v,m.
+def : WriteRes<WritePHAddLd, [HWPort1, HWPort5, HWPort23]> {
+  let Latency = 6;
+  let NumMicroOps = 3;
+  let ResourceCycles = [1, 2, 1];
+}
+
 // PHADD|PHSUB (S) W/D.
 // v <- v,v.
 def WritePHADDSUBr : SchedWriteRes<[HWPort1, HWPort5]> {
Index: lib/Target/X86/X86SchedSandyBridge.td
===================================================================
--- lib/Target/X86/X86SchedSandyBridge.td
+++ lib/Target/X86/X86SchedSandyBridge.td
@@ -157,6 +157,31 @@
   let ResourceCycles = [1, 1, 1, 1];
 }
 
+////////////////////////////////////////////////////////////////////////////////
+// Horizontal add/sub  instructions.
+////////////////////////////////////////////////////////////////////////////////
+// HADD, HSUB PS/PD
+// x,x / v,v,v.
+def : WriteRes<WriteFHAdd, [SBPort1]> {
+  let Latency = 3;
+}
+
+// x,m / v,v,m.
+def : WriteRes<WriteFHAddLd, [SBPort1, SBPort23]> {
+  let Latency = 7;
+  let ResourceCycles = [1, 1];
+}
+
+// PHADD|PHSUB (S) W/D.
+// v <- v,v.
+def : WriteRes<WritePHAdd, [SBPort15]>;
+
+// v <- v,m.
+def : WriteRes<WritePHAddLd, [SBPort15, SBPort23]> {
+  let Latency = 5;
+  let ResourceCycles = [1, 1];
+}
+
 // String instructions.
 // Packed Compare Implicit Length Strings, Return Mask
 def : WriteRes<WritePCmpIStrM, [SBPort015]> {
Index: lib/Target/X86/X86Schedule.td
===================================================================
--- lib/Target/X86/X86Schedule.td
+++ lib/Target/X86/X86Schedule.td
@@ -77,6 +77,10 @@
 // FMA Scheduling helper class.
 class FMASC { X86FoldableSchedWrite Sched = WriteFAdd; }
 
+// Horizontal Add/Sub (float and integer)
+defm WriteFHAdd  : X86SchedWritePair;
+defm WritePHAdd : X86SchedWritePair;
+
 // Vector integer operations.
 defm WriteVecALU   : X86SchedWritePair; // Vector integer ALU op, no logicals.
 defm WriteVecShift : X86SchedWritePair; // Vector integer shifts.
Index: lib/Target/X86/X86ScheduleBtVer2.td
===================================================================
--- lib/Target/X86/X86ScheduleBtVer2.td
+++ lib/Target/X86/X86ScheduleBtVer2.td
@@ -320,6 +320,38 @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// Horizontal add/sub  instructions.
+////////////////////////////////////////////////////////////////////////////////
+
+def : WriteRes<WriteFHAdd, [JFPU0]> {
+  let Latency = 3;
+}
+
+def : WriteRes<WriteFHAddLd, [JLAGU, JFPU0]> {
+  let Latency = 8;
+}
+
+def : WriteRes<WritePHAdd, [JFPU01]> {
+  let ResourceCycles = [1];
+}
+def : WriteRes<WritePHAddLd, [JLAGU, JFPU01 ]> {
+  let Latency = 6;
+  let ResourceCycles = [1, 1];
+}
+
+def WriteFHAddY: SchedWriteRes<[JFPU0]> {
+  let Latency = 3;
+  let ResourceCycles = [2];
+}
+def : InstRW<[WriteFHAddY], (instregex "VH(ADD|SUB)P(S|D)Yrr")>;
+
+def WriteFHAddYLd: SchedWriteRes<[JLAGU, JFPU0]> {
+  let Latency = 8;
+  let ResourceCycles = [1, 2];
+}
+def : InstRW<[WriteFHAddYLd], (instregex "VH(ADD|SUB)P(S|D)Yrm")>;
+
+////////////////////////////////////////////////////////////////////////////////
 // Carry-less multiplication instructions.
 ////////////////////////////////////////////////////////////////////////////////
 
Index: lib/Target/X86/X86ScheduleSLM.td
===================================================================
--- lib/Target/X86/X86ScheduleSLM.td
+++ lib/Target/X86/X86ScheduleSLM.td
@@ -137,6 +137,33 @@
 defm : SMWriteResPair<WriteBlend,  FPC_RSV0,  1>;
 defm : SMWriteResPair<WriteMPSAD,  FPC_RSV0,  7>;
 
+////////////////////////////////////////////////////////////////////////////////
+// Horizontal add/sub  instructions.
+////////////////////////////////////////////////////////////////////////////////
+
+// HADD, HSUB PS/PD
+
+def : WriteRes<WriteFHAdd,  [FPC_RSV01]> {
+  let Latency = 3;
+  let ResourceCycles = [2];
+}
+
+def : WriteRes<WriteFHAddLd,  [FPC_RSV01, MEC_RSV]> {
+  let Latency = 6;
+  let ResourceCycles = [2, 1];
+}
+
+// PHADD|PHSUB (S) W/D.
+def : WriteRes<WritePHAdd,  [FPC_RSV01]> {
+  let Latency = 1;
+  let ResourceCycles = [1];
+}
+
+def : WriteRes<WritePHAddLd,  [FPC_RSV01, MEC_RSV]> {
+  let Latency = 4;
+  let ResourceCycles = [1, 1];
+}
+
 // String instructions.
 // Packed Compare Implicit Length Strings, Return Mask
 def : WriteRes<WritePCmpIStrM, [FPC_RSV0]> {
Index: test/CodeGen/X86/avx-schedule.ll
===================================================================
--- test/CodeGen/X86/avx-schedule.ll
+++ test/CodeGen/X86/avx-schedule.ll
@@ -910,14 +910,14 @@
 ;
 ; BTVER2-LABEL: test_haddpd:
 ; BTVER2:       # BB#0:
-; BTVER2-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; BTVER2-NEXT:    vhaddpd (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; BTVER2-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; BTVER2-NEXT:    vhaddpd (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; BTVER2-NEXT:    retq # sched: [4:1.00]
 ;
 ; ZNVER1-LABEL: test_haddpd:
 ; ZNVER1:       # BB#0:
-; ZNVER1-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; ZNVER1-NEXT:    vhaddpd (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; ZNVER1-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; ZNVER1-NEXT:    vhaddpd (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; ZNVER1-NEXT:    retq # sched: [4:1.00]
   %1 = call <4 x double> @llvm.x86.avx.hadd.pd.256(<4 x double> %a0, <4 x double> %a1)
   %2 = load <4 x double>, <4 x double> *%a2, align 32
@@ -941,14 +941,14 @@
 ;
 ; BTVER2-LABEL: test_haddps:
 ; BTVER2:       # BB#0:
-; BTVER2-NEXT:    vhaddps %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; BTVER2-NEXT:    vhaddps (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; BTVER2-NEXT:    vhaddps %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; BTVER2-NEXT:    vhaddps (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; BTVER2-NEXT:    retq # sched: [4:1.00]
 ;
 ; ZNVER1-LABEL: test_haddps:
 ; ZNVER1:       # BB#0:
-; ZNVER1-NEXT:    vhaddps %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; ZNVER1-NEXT:    vhaddps (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; ZNVER1-NEXT:    vhaddps %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; ZNVER1-NEXT:    vhaddps (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; ZNVER1-NEXT:    retq # sched: [4:1.00]
   %1 = call <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float> %a0, <8 x float> %a1)
   %2 = load <8 x float>, <8 x float> *%a2, align 32
@@ -972,14 +972,14 @@
 ;
 ; BTVER2-LABEL: test_hsubpd:
 ; BTVER2:       # BB#0:
-; BTVER2-NEXT:    vhsubpd %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; BTVER2-NEXT:    vhsubpd (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; BTVER2-NEXT:    vhsubpd %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; BTVER2-NEXT:    vhsubpd (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; BTVER2-NEXT:    retq # sched: [4:1.00]
 ;
 ; ZNVER1-LABEL: test_hsubpd:
 ; ZNVER1:       # BB#0:
-; ZNVER1-NEXT:    vhsubpd %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; ZNVER1-NEXT:    vhsubpd (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; ZNVER1-NEXT:    vhsubpd %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; ZNVER1-NEXT:    vhsubpd (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; ZNVER1-NEXT:    retq # sched: [4:1.00]
   %1 = call <4 x double> @llvm.x86.avx.hsub.pd.256(<4 x double> %a0, <4 x double> %a1)
   %2 = load <4 x double>, <4 x double> *%a2, align 32
@@ -1003,14 +1003,14 @@
 ;
 ; BTVER2-LABEL: test_hsubps:
 ; BTVER2:       # BB#0:
-; BTVER2-NEXT:    vhsubps %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; BTVER2-NEXT:    vhsubps (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; BTVER2-NEXT:    vhsubps %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; BTVER2-NEXT:    vhsubps (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; BTVER2-NEXT:    retq # sched: [4:1.00]
 ;
 ; ZNVER1-LABEL: test_hsubps:
 ; ZNVER1:       # BB#0:
-; ZNVER1-NEXT:    vhsubps %ymm1, %ymm0, %ymm0 # sched: [3:1.00]
-; ZNVER1-NEXT:    vhsubps (%rdi), %ymm0, %ymm0 # sched: [8:1.00]
+; ZNVER1-NEXT:    vhsubps %ymm1, %ymm0, %ymm0 # sched: [3:2.00]
+; ZNVER1-NEXT:    vhsubps (%rdi), %ymm0, %ymm0 # sched: [8:2.00]
 ; ZNVER1-NEXT:    retq # sched: [4:1.00]
   %1 = call <8 x float> @llvm.x86.avx.hsub.ps.256(<8 x float> %a0, <8 x float> %a1)
   %2 = load <8 x float>, <8 x float> *%a2, align 32