Index: lib/Target/X86/X86InstrInfo.td
===================================================================
--- lib/Target/X86/X86InstrInfo.td
+++ lib/Target/X86/X86InstrInfo.td
@@ -1749,7 +1749,7 @@
 // Bit tests instructions: BT, BTS, BTR, BTC.
 
 let Defs = [EFLAGS] in {
-let SchedRW = [WriteALU] in {
+let SchedRW = [WriteBitTest] in {
 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
                "bt{w}\t{$src2, $src1|$src1, $src2}",
                [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))]>,
@@ -1782,7 +1782,7 @@
                   []>, TB, NotMemoryFoldable;
 }
 
-let SchedRW = [WriteALU] in {
+let SchedRW = [WriteBitTest] in {
 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
                 "bt{w}\t{$src2, $src1|$src1, $src2}",
                 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))]>,
@@ -1817,7 +1817,7 @@
 } // SchedRW
 
 let hasSideEffects = 0 in {
-let SchedRW = [WriteALU], Constraints = "$src1 = $dst" in {
+let SchedRW = [WriteBitTest], Constraints = "$src1 = $dst" in {
 def BTC16rr : I<0xBB, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                 "btc{w}\t{$src2, $src1|$src1, $src2}", []>,
                 OpSize16, TB, NotMemoryFoldable;
@@ -1841,7 +1841,7 @@
                  NotMemoryFoldable;
 }
 
-let SchedRW = [WriteALU], Constraints = "$src1 = $dst" in {
+let SchedRW = [WriteBitTest], Constraints = "$src1 = $dst" in {
 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                     "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize16, TB;
 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
@@ -1860,7 +1860,7 @@
                     Requires<[In64BitMode]>;
 }
 
-let SchedRW = [WriteALU], Constraints = "$src1 = $dst" in {
+let SchedRW = [WriteBitTest], Constraints = "$src1 = $dst" in {
 def BTR16rr : I<0xB3, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                 "btr{w}\t{$src2, $src1|$src1, $src2}", []>,
                 OpSize16, TB, NotMemoryFoldable;
@@ -1884,7 +1884,7 @@
                  NotMemoryFoldable;
 }
 
-let SchedRW = [WriteALU], Constraints = "$src1 = $dst" in {
+let SchedRW = [WriteBitTest], Constraints = "$src1 = $dst" in {
 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                     "btr{w}\t{$src2, $src1|$src1, $src2}", []>,
                     OpSize16, TB;
@@ -1907,7 +1907,7 @@
                     Requires<[In64BitMode]>;
 }
 
-let SchedRW = [WriteALU], Constraints = "$src1 = $dst" in {
+let SchedRW = [WriteBitTest], Constraints = "$src1 = $dst" in {
 def BTS16rr : I<0xAB, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                 "bts{w}\t{$src2, $src1|$src1, $src2}", []>,
                 OpSize16, TB, NotMemoryFoldable;
@@ -1931,7 +1931,7 @@
                  NotMemoryFoldable;
 }
 
-let SchedRW = [WriteALU], Constraints = "$src1 = $dst" in {
+let SchedRW = [WriteBitTest], Constraints = "$src1 = $dst" in {
 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                     "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize16, TB;
 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
Index: lib/Target/X86/X86SchedBroadwell.td
===================================================================
--- lib/Target/X86/X86SchedBroadwell.td
+++ lib/Target/X86/X86SchedBroadwell.td
@@ -110,6 +110,7 @@
 defm : BWWriteResPair<WriteADC,    [BWPort06], 1>; // Integer ALU + flags op.
 defm : BWWriteResPair<WriteIMul,   [BWPort1], 3>; // Integer multiplication.
 defm : BWWriteResPair<WriteIMul64, [BWPort1], 3>; // Integer 64-bit multiplication.
+defm : BWWriteResPair<WriteBitTest,[BWPort06], 1>; //
 
 defm : BWWriteResPair<WriteDiv8,   [BWPort0, BWDivider], 25, [1, 10]>;
 defm : BWWriteResPair<WriteDiv16,  [BWPort0, BWDivider], 25, [1, 10]>;
@@ -598,14 +599,6 @@
   let ResourceCycles = [1];
 }
 def: InstRW<[BWWriteResGroup6], (instrs CDQ, CQO)>;
-def: InstRW<[BWWriteResGroup6], (instregex "BT(16|32|64)ri8",
-                                           "BT(16|32|64)rr",
-                                           "BTC(16|32|64)ri8",
-                                           "BTC(16|32|64)rr",
-                                           "BTR(16|32|64)ri8",
-                                           "BTR(16|32|64)rr",
-                                           "BTS(16|32|64)ri8",
-                                           "BTS(16|32|64)rr")>;
 
 def BWWriteResGroup7 : SchedWriteRes<[BWPort15]> {
   let Latency = 1;
Index: lib/Target/X86/X86SchedHaswell.td
===================================================================
--- lib/Target/X86/X86SchedHaswell.td
+++ lib/Target/X86/X86SchedHaswell.td
@@ -119,6 +119,7 @@
 def  : WriteRes<WriteZero,       []>;
 
 defm : HWWriteResPair<WriteALU,    [HWPort0156], 1>;
+defm : HWWriteResPair<WriteBitTest,[HWPort06], 1>;
 defm : HWWriteResPair<WriteADC,    [HWPort06,HWPort0156], 2, [1,1], 2>;
 defm : HWWriteResPair<WriteIMul,   [HWPort1],   3>;
 defm : HWWriteResPair<WriteIMul64, [HWPort1],   3>;
@@ -882,14 +883,6 @@
   let ResourceCycles = [1];
 }
 def: InstRW<[HWWriteResGroup7], (instrs CDQ, CQO)>;
-def: InstRW<[HWWriteResGroup7], (instregex "BT(16|32|64)ri8",
-                                           "BT(16|32|64)rr",
-                                           "BTC(16|32|64)ri8",
-                                           "BTC(16|32|64)rr",
-                                           "BTR(16|32|64)ri8",
-                                           "BTR(16|32|64)rr",
-                                           "BTS(16|32|64)ri8",
-                                           "BTS(16|32|64)rr")>;
 
 def HWWriteResGroup8 : SchedWriteRes<[HWPort15]> {
   let Latency = 1;
Index: lib/Target/X86/X86SchedSandyBridge.td
===================================================================
--- lib/Target/X86/X86SchedSandyBridge.td
+++ lib/Target/X86/X86SchedSandyBridge.td
@@ -107,6 +107,7 @@
 def : WriteRes<WriteZero,    []>;
 
 defm : SBWriteResPair<WriteALU,    [SBPort015], 1>;
+defm : SBWriteResPair<WriteBitTest,[SBPort05], 1, [1]>;
 defm : SBWriteResPair<WriteADC,    [SBPort05,SBPort015], 2, [1,1], 2>;
 defm : SBWriteResPair<WriteIMul,   [SBPort1],   3>;
 defm : SBWriteResPair<WriteIMul64, [SBPort1],   3>;
@@ -561,14 +562,6 @@
   let ResourceCycles = [1];
 }
 def: InstRW<[SBWriteResGroup4], (instrs CDQ, CQO)>;
-def: InstRW<[SBWriteResGroup4], (instregex "BT(16|32|64)ri8",
-                                           "BT(16|32|64)rr",
-                                           "BTC(16|32|64)ri8",
-                                           "BTC(16|32|64)rr",
-                                           "BTR(16|32|64)ri8",
-                                           "BTR(16|32|64)rr",
-                                           "BTS(16|32|64)ri8",
-                                           "BTS(16|32|64)rr")>;
 
 def SBWriteResGroup5 : SchedWriteRes<[SBPort15]> {
   let Latency = 1;
Index: lib/Target/X86/X86SchedSkylakeClient.td
===================================================================
--- lib/Target/X86/X86SchedSkylakeClient.td
+++ lib/Target/X86/X86SchedSkylakeClient.td
@@ -109,6 +109,7 @@
 defm : SKLWriteResPair<WriteADC,    [SKLPort06],   1>; // Integer ALU + flags op.
 defm : SKLWriteResPair<WriteIMul,   [SKLPort1],    3>; // Integer multiplication.
 defm : SKLWriteResPair<WriteIMul64, [SKLPort1],    3>; // Integer 64-bit multiplication.
+defm : SKLWriteResPair<WriteBitTest,[SKLPort06],   1>; //
 
 defm : SKLWriteResPair<WriteDiv8,   [SKLPort0, SKLDivider], 25, [1,10], 1, 4>;
 defm : SKLWriteResPair<WriteDiv16,  [SKLPort0, SKLDivider], 25, [1,10], 1, 4>;
@@ -599,14 +600,6 @@
   let ResourceCycles = [1];
 }
 def: InstRW<[SKLWriteResGroup7], (instrs CDQ, CQO, CLAC, STAC)>;
-def: InstRW<[SKLWriteResGroup7], (instregex "BT(16|32|64)ri8",
-                                            "BT(16|32|64)rr",
-                                            "BTC(16|32|64)ri8",
-                                            "BTC(16|32|64)rr",
-                                            "BTR(16|32|64)ri8",
-                                            "BTR(16|32|64)rr",
-                                            "BTS(16|32|64)ri8",
-                                            "BTS(16|32|64)rr")>;
 
 def SKLWriteResGroup8 : SchedWriteRes<[SKLPort15]> {
   let Latency = 1;
Index: lib/Target/X86/X86SchedSkylakeServer.td
===================================================================
--- lib/Target/X86/X86SchedSkylakeServer.td
+++ lib/Target/X86/X86SchedSkylakeServer.td
@@ -109,6 +109,7 @@
 defm : SKXWriteResPair<WriteADC,    [SKXPort06],   1>; // Integer ALU + flags op.
 defm : SKXWriteResPair<WriteIMul,   [SKXPort1],    3>; // Integer multiplication.
 defm : SKXWriteResPair<WriteIMul64, [SKXPort1],    3>; // Integer 64-bit multiplication.
+defm : SKXWriteResPair<WriteBitTest,[SKXPort06],   1>; //
 
 defm : SKXWriteResPair<WriteDiv8,   [SKXPort0, SKXDivider], 25, [1,10], 1, 4>;
 defm : SKXWriteResPair<WriteDiv16,  [SKXPort0, SKXDivider], 25, [1,10], 1, 4>;
@@ -612,14 +613,6 @@
   let ResourceCycles = [1];
 }
 def: InstRW<[SKXWriteResGroup7], (instrs CDQ, CQO, CLAC, STAC)>;
-def: InstRW<[SKXWriteResGroup7], (instregex "BT(16|32|64)ri8",
-                                            "BT(16|32|64)rr",
-                                            "BTC(16|32|64)ri8",
-                                            "BTC(16|32|64)rr",
-                                            "BTR(16|32|64)ri8",
-                                            "BTR(16|32|64)rr",
-                                            "BTS(16|32|64)ri8",
-                                            "BTS(16|32|64)rr")>;
 
 def SKXWriteResGroup8 : SchedWriteRes<[SKXPort15]> {
   let Latency = 1;
Index: lib/Target/X86/X86Schedule.td
===================================================================
--- lib/Target/X86/X86Schedule.td
+++ lib/Target/X86/X86Schedule.td
@@ -118,6 +118,9 @@
 def  WriteIMulH  : SchedWrite;        // Integer multiplication, high part.
 def  WriteLEA    : SchedWrite;        // LEA instructions can't fold loads.
 
+// Bit Test
+defm WriteBitTest    : X86SchedWritePair;
+
 // Integer division.
 defm WriteDiv8   : X86SchedWritePair;
 defm WriteDiv16  : X86SchedWritePair;
Index: lib/Target/X86/X86ScheduleAtom.td
===================================================================
--- lib/Target/X86/X86ScheduleAtom.td
+++ lib/Target/X86/X86ScheduleAtom.td
@@ -80,6 +80,7 @@
 defm : AtomWriteResPair<WriteADC,    [AtomPort01], [AtomPort0]>;
 defm : AtomWriteResPair<WriteIMul,   [AtomPort01], [AtomPort01],  7,  7,  [7],  [7]>;
 defm : AtomWriteResPair<WriteIMul64, [AtomPort01], [AtomPort01], 12, 12, [12], [12]>;
+defm : AtomWriteResPair<WriteBitTest,[AtomPort01], [AtomPort0]>;
 
 defm : AtomWriteResPair<WriteDiv8,   [AtomPort01], [AtomPort01], 50, 68, [50], [68]>;
 defm : AtomWriteResPair<WriteDiv16,  [AtomPort01], [AtomPort01], 50, 50, [50], [50]>;
Index: lib/Target/X86/X86ScheduleBtVer2.td
===================================================================
--- lib/Target/X86/X86ScheduleBtVer2.td
+++ lib/Target/X86/X86ScheduleBtVer2.td
@@ -161,6 +161,8 @@
 defm : JWriteResIntPair<WriteIMul64, [JALU1, JMul], 6, [1, 4], 2>; // i64 multiplication
 defm : X86WriteRes<WriteIMulH,       [JALU1], 6, [4], 1>;
 
+defm : JWriteResIntPair<WriteBitTest,[JALU01], 1>;
+
 defm : JWriteResIntPair<WriteDiv8,   [JALU1, JDiv], 12, [1, 12], 1>;
 defm : JWriteResIntPair<WriteDiv16,  [JALU1, JDiv], 17, [1, 17], 2>;
 defm : JWriteResIntPair<WriteDiv32,  [JALU1, JDiv], 25, [1, 25], 2>;
Index: lib/Target/X86/X86ScheduleSLM.td
===================================================================
--- lib/Target/X86/X86ScheduleSLM.td
+++ lib/Target/X86/X86ScheduleSLM.td
@@ -94,6 +94,7 @@
 def : InstRW<[WriteMove], (instrs COPY)>;
 
 defm : SLMWriteResPair<WriteALU,    [SLM_IEC_RSV01], 1>;
+defm : SLMWriteResPair<WriteBitTest,[SLM_IEC_RSV01], 1>;
 defm : SLMWriteResPair<WriteADC,    [SLM_IEC_RSV01], 1>;
 defm : SLMWriteResPair<WriteIMul,   [SLM_IEC_RSV1],  3>;
 defm : SLMWriteResPair<WriteIMul64, [SLM_IEC_RSV1],  3>;
Index: lib/Target/X86/X86ScheduleZnver1.td
===================================================================
--- lib/Target/X86/X86ScheduleZnver1.td
+++ lib/Target/X86/X86ScheduleZnver1.td
@@ -177,6 +177,7 @@
 def : WriteRes<WriteLEA, [ZnALU]>;
 defm : ZnWriteResPair<WriteALU,   [ZnALU], 1>;
 defm : ZnWriteResPair<WriteADC,   [ZnALU], 1>;
+defm : ZnWriteResPair<WriteBitTest,[ZnALU], 1>;
 defm : ZnWriteResPair<WriteIMul,   [ZnALU1, ZnMultiplier], 4>;
 defm : ZnWriteResPair<WriteIMul64, [ZnALU1, ZnMultiplier], 4, [1,1], 2>;
 defm : ZnWriteResPair<WriteShift, [ZnALU], 1>;