1 files changed, 49 insertions, 1156 deletions

diff --git a/lib/Target/Hexagon/HexagonInstrInfo.cpp b/lib/Target/Hexagon/HexagonInstrInfo.cpp
index 29343a5c3d..a3918692db 100644
--- a/lib/Target/Hexagon/HexagonInstrInfo.cpp
+++ b/lib/Target/Hexagon/HexagonInstrInfo.cpp
@@ -11,10 +11,10 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "Hexagon.h"
 #include "HexagonInstrInfo.h"
 #include "HexagonRegisterInfo.h"
 #include "HexagonSubtarget.h"
-#include "Hexagon.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/CodeGen/DFAPacketizer.h"
@@ -34,23 +34,23 @@ using namespace llvm;
 /// Constants for Hexagon instructions.
 ///
 const int Hexagon_MEMW_OFFSET_MAX = 4095;
-const int Hexagon_MEMW_OFFSET_MIN = -4096;
+const int Hexagon_MEMW_OFFSET_MIN = 4096;
 const int Hexagon_MEMD_OFFSET_MAX = 8191;
-const int Hexagon_MEMD_OFFSET_MIN = -8192;
+const int Hexagon_MEMD_OFFSET_MIN = 8192;
 const int Hexagon_MEMH_OFFSET_MAX = 2047;
-const int Hexagon_MEMH_OFFSET_MIN = -2048;
+const int Hexagon_MEMH_OFFSET_MIN = 2048;
 const int Hexagon_MEMB_OFFSET_MAX = 1023;
-const int Hexagon_MEMB_OFFSET_MIN = -1024;
+const int Hexagon_MEMB_OFFSET_MIN = 1024;
 const int Hexagon_ADDI_OFFSET_MAX = 32767;
-const int Hexagon_ADDI_OFFSET_MIN = -32768;
+const int Hexagon_ADDI_OFFSET_MIN = 32768;
 const int Hexagon_MEMD_AUTOINC_MAX = 56;
-const int Hexagon_MEMD_AUTOINC_MIN = -64;
+const int Hexagon_MEMD_AUTOINC_MIN = 64;
 const int Hexagon_MEMW_AUTOINC_MAX = 28;
-const int Hexagon_MEMW_AUTOINC_MIN = -32;
+const int Hexagon_MEMW_AUTOINC_MIN = 32;
 const int Hexagon_MEMH_AUTOINC_MAX = 14;
-const int Hexagon_MEMH_AUTOINC_MIN = -16;
+const int Hexagon_MEMH_AUTOINC_MIN = 16;
 const int Hexagon_MEMB_AUTOINC_MAX = 7;
-const int Hexagon_MEMB_AUTOINC_MIN = -8;
+const int Hexagon_MEMB_AUTOINC_MIN = 8;
 
 
 
@@ -70,7 +70,6 @@ unsigned HexagonInstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
 
 
   switch (MI->getOpcode()) {
-  default: break;
   case Hexagon::LDriw:
   case Hexagon::LDrid:
   case Hexagon::LDrih:
@@ -82,7 +81,11 @@ unsigned HexagonInstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
       return MI->getOperand(0).getReg();
     }
     break;
+
+  default:
+    break;
   }
+
   return 0;
 }
 
@@ -95,7 +98,6 @@ unsigned HexagonInstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
 unsigned HexagonInstrInfo::isStoreToStackSlot(const MachineInstr *MI,
                                             int &FrameIndex) const {
   switch (MI->getOpcode()) {
-  default: break;
   case Hexagon::STriw:
   case Hexagon::STrid:
   case Hexagon::STrih:
@@ -106,7 +108,11 @@ unsigned HexagonInstrInfo::isStoreToStackSlot(const MachineInstr *MI,
       return MI->getOperand(0).getReg();
     }
     break;
+
+  default:
+    break;
   }
+
   return 0;
 }
 
@@ -409,6 +415,7 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                       MachineMemOperand::MOLoad,
                       MFI.getObjectSize(FI),
                       Align);
+
   if (RC == &Hexagon::IntRegsRegClass) {
     BuildMI(MBB, I, DL, get(Hexagon::LDriw), DestReg)
           .addFrameIndex(FI).addImm(0).addMemOperand(MMO);
@@ -445,866 +452,20 @@ unsigned HexagonInstrInfo::createVR(MachineFunction* MF, MVT VT) const {
 
   MachineRegisterInfo &RegInfo = MF->getRegInfo();
   const TargetRegisterClass *TRC;
-  if (VT == MVT::i1) {
+  if (VT == MVT::i1)
     TRC = &Hexagon::PredRegsRegClass;
-  } else if (VT == MVT::i32 || VT == MVT::f32) {
+  else if (VT == MVT::i32)
     TRC = &Hexagon::IntRegsRegClass;
-  } else if (VT == MVT::i64 || VT == MVT::f64) {
+  else if (VT == MVT::i64)
     TRC = &Hexagon::DoubleRegsRegClass;
-  } else {
+  else
     llvm_unreachable("Cannot handle this register class");
-  }
 
   unsigned NewReg = RegInfo.createVirtualRegister(TRC);
   return NewReg;
 }
 
-bool HexagonInstrInfo::isExtendable(const MachineInstr *MI) const {
-  switch(MI->getOpcode()) {
-    default: return false;
-    // JMP_EQri
-    case Hexagon::JMP_EQriPt_nv_V4:
-    case Hexagon::JMP_EQriPnt_nv_V4:
-    case Hexagon::JMP_EQriNotPt_nv_V4:
-    case Hexagon::JMP_EQriNotPnt_nv_V4:
-
-    // JMP_EQri - with -1
-    case Hexagon::JMP_EQriPtneg_nv_V4:
-    case Hexagon::JMP_EQriPntneg_nv_V4:
-    case Hexagon::JMP_EQriNotPtneg_nv_V4:
-    case Hexagon::JMP_EQriNotPntneg_nv_V4:
-
-    // JMP_EQrr
-    case Hexagon::JMP_EQrrPt_nv_V4:
-    case Hexagon::JMP_EQrrPnt_nv_V4:
-    case Hexagon::JMP_EQrrNotPt_nv_V4:
-    case Hexagon::JMP_EQrrNotPnt_nv_V4:
-
-    // JMP_GTri
-    case Hexagon::JMP_GTriPt_nv_V4:
-    case Hexagon::JMP_GTriPnt_nv_V4:
-    case Hexagon::JMP_GTriNotPt_nv_V4:
-    case Hexagon::JMP_GTriNotPnt_nv_V4:
-
-    // JMP_GTri - with -1
-    case Hexagon::JMP_GTriPtneg_nv_V4:
-    case Hexagon::JMP_GTriPntneg_nv_V4:
-    case Hexagon::JMP_GTriNotPtneg_nv_V4:
-    case Hexagon::JMP_GTriNotPntneg_nv_V4:
-
-    // JMP_GTrr
-    case Hexagon::JMP_GTrrPt_nv_V4:
-    case Hexagon::JMP_GTrrPnt_nv_V4:
-    case Hexagon::JMP_GTrrNotPt_nv_V4:
-    case Hexagon::JMP_GTrrNotPnt_nv_V4:
-
-    // JMP_GTrrdn
-    case Hexagon::JMP_GTrrdnPt_nv_V4:
-    case Hexagon::JMP_GTrrdnPnt_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPt_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPnt_nv_V4:
-
-    // JMP_GTUri
-    case Hexagon::JMP_GTUriPt_nv_V4:
-    case Hexagon::JMP_GTUriPnt_nv_V4:
-    case Hexagon::JMP_GTUriNotPt_nv_V4:
-    case Hexagon::JMP_GTUriNotPnt_nv_V4:
-
-    // JMP_GTUrr
-    case Hexagon::JMP_GTUrrPt_nv_V4:
-    case Hexagon::JMP_GTUrrPnt_nv_V4:
-    case Hexagon::JMP_GTUrrNotPt_nv_V4:
-    case Hexagon::JMP_GTUrrNotPnt_nv_V4:
-
-    // JMP_GTUrrdn
-    case Hexagon::JMP_GTUrrdnPt_nv_V4:
-    case Hexagon::JMP_GTUrrdnPnt_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPt_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPnt_nv_V4:
-
-    // TFR_FI
-    case Hexagon::TFR_FI:
-      return true;
-  }
-}
-
-bool HexagonInstrInfo::isExtended(const MachineInstr *MI) const {
-  switch(MI->getOpcode()) {
-    default: return false;
-    // JMP_EQri
-    case Hexagon::JMP_EQriPt_ie_nv_V4:
-    case Hexagon::JMP_EQriPnt_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPt_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPnt_ie_nv_V4:
-
-    // JMP_EQri - with -1
-    case Hexagon::JMP_EQriPtneg_ie_nv_V4:
-    case Hexagon::JMP_EQriPntneg_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPtneg_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPntneg_ie_nv_V4:
-
-    // JMP_EQrr
-    case Hexagon::JMP_EQrrPt_ie_nv_V4:
-    case Hexagon::JMP_EQrrPnt_ie_nv_V4:
-    case Hexagon::JMP_EQrrNotPt_ie_nv_V4:
-    case Hexagon::JMP_EQrrNotPnt_ie_nv_V4:
-
-    // JMP_GTri
-    case Hexagon::JMP_GTriPt_ie_nv_V4:
-    case Hexagon::JMP_GTriPnt_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPnt_ie_nv_V4:
-
-    // JMP_GTri - with -1
-    case Hexagon::JMP_GTriPtneg_ie_nv_V4:
-    case Hexagon::JMP_GTriPntneg_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPtneg_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPntneg_ie_nv_V4:
-
-    // JMP_GTrr
-    case Hexagon::JMP_GTrrPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrPnt_ie_nv_V4:
-    case Hexagon::JMP_GTrrNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrNotPnt_ie_nv_V4:
-
-    // JMP_GTrrdn
-    case Hexagon::JMP_GTrrdnPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrdnPnt_ie_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPnt_ie_nv_V4:
-
-    // JMP_GTUri
-    case Hexagon::JMP_GTUriPt_ie_nv_V4:
-    case Hexagon::JMP_GTUriPnt_ie_nv_V4:
-    case Hexagon::JMP_GTUriNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTUriNotPnt_ie_nv_V4:
-
-    // JMP_GTUrr
-    case Hexagon::JMP_GTUrrPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrPnt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrNotPnt_ie_nv_V4:
-
-    // JMP_GTUrrdn
-    case Hexagon::JMP_GTUrrdnPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrdnPnt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPnt_ie_nv_V4:
-
-    // V4 absolute set addressing.
-    case Hexagon::LDrid_abs_setimm_V4:
-    case Hexagon::LDriw_abs_setimm_V4:
-    case Hexagon::LDrih_abs_setimm_V4:
-    case Hexagon::LDrib_abs_setimm_V4:
-    case Hexagon::LDriuh_abs_setimm_V4:
-    case Hexagon::LDriub_abs_setimm_V4:
-
-    case Hexagon::STrid_abs_setimm_V4:
-    case Hexagon::STrib_abs_setimm_V4:
-    case Hexagon::STrih_abs_setimm_V4:
-    case Hexagon::STriw_abs_setimm_V4:
-
-    // V4 global address load.
-    case Hexagon::LDrid_GP_cPt_V4 :
-    case Hexagon::LDrid_GP_cNotPt_V4 :
-    case Hexagon::LDrid_GP_cdnPt_V4 :
-    case Hexagon::LDrid_GP_cdnNotPt_V4 :
-    case Hexagon::LDrib_GP_cPt_V4 :
-    case Hexagon::LDrib_GP_cNotPt_V4 :
-    case Hexagon::LDrib_GP_cdnPt_V4 :
-    case Hexagon::LDrib_GP_cdnNotPt_V4 :
-    case Hexagon::LDriub_GP_cPt_V4 :
-    case Hexagon::LDriub_GP_cNotPt_V4 :
-    case Hexagon::LDriub_GP_cdnPt_V4 :
-    case Hexagon::LDriub_GP_cdnNotPt_V4 :
-    case Hexagon::LDrih_GP_cPt_V4 :
-    case Hexagon::LDrih_GP_cNotPt_V4 :
-    case Hexagon::LDrih_GP_cdnPt_V4 :
-    case Hexagon::LDrih_GP_cdnNotPt_V4 :
-    case Hexagon::LDriuh_GP_cPt_V4 :
-    case Hexagon::LDriuh_GP_cNotPt_V4 :
-    case Hexagon::LDriuh_GP_cdnPt_V4 :
-    case Hexagon::LDriuh_GP_cdnNotPt_V4 :
-    case Hexagon::LDriw_GP_cPt_V4 :
-    case Hexagon::LDriw_GP_cNotPt_V4 :
-    case Hexagon::LDriw_GP_cdnPt_V4 :
-    case Hexagon::LDriw_GP_cdnNotPt_V4 :
-    case Hexagon::LDd_GP_cPt_V4 :
-    case Hexagon::LDd_GP_cNotPt_V4 :
-    case Hexagon::LDd_GP_cdnPt_V4 :
-    case Hexagon::LDd_GP_cdnNotPt_V4 :
-    case Hexagon::LDb_GP_cPt_V4 :
-    case Hexagon::LDb_GP_cNotPt_V4 :
-    case Hexagon::LDb_GP_cdnPt_V4 :
-    case Hexagon::LDb_GP_cdnNotPt_V4 :
-    case Hexagon::LDub_GP_cPt_V4 :
-    case Hexagon::LDub_GP_cNotPt_V4 :
-    case Hexagon::LDub_GP_cdnPt_V4 :
-    case Hexagon::LDub_GP_cdnNotPt_V4 :
-    case Hexagon::LDh_GP_cPt_V4 :
-    case Hexagon::LDh_GP_cNotPt_V4 :
-    case Hexagon::LDh_GP_cdnPt_V4 :
-    case Hexagon::LDh_GP_cdnNotPt_V4 :
-    case Hexagon::LDuh_GP_cPt_V4 :
-    case Hexagon::LDuh_GP_cNotPt_V4 :
-    case Hexagon::LDuh_GP_cdnPt_V4 :
-    case Hexagon::LDuh_GP_cdnNotPt_V4 :
-    case Hexagon::LDw_GP_cPt_V4 :
-    case Hexagon::LDw_GP_cNotPt_V4 :
-    case Hexagon::LDw_GP_cdnPt_V4 :
-    case Hexagon::LDw_GP_cdnNotPt_V4 :
-
-    // V4 global address store.
-    case Hexagon::STrid_GP_cPt_V4 :
-    case Hexagon::STrid_GP_cNotPt_V4 :
-    case Hexagon::STrid_GP_cdnPt_V4 :
-    case Hexagon::STrid_GP_cdnNotPt_V4 :
-    case Hexagon::STrib_GP_cPt_V4 :
-    case Hexagon::STrib_GP_cNotPt_V4 :
-    case Hexagon::STrib_GP_cdnPt_V4 :
-    case Hexagon::STrib_GP_cdnNotPt_V4 :
-    case Hexagon::STrih_GP_cPt_V4 :
-    case Hexagon::STrih_GP_cNotPt_V4 :
-    case Hexagon::STrih_GP_cdnPt_V4 :
-    case Hexagon::STrih_GP_cdnNotPt_V4 :
-    case Hexagon::STriw_GP_cPt_V4 :
-    case Hexagon::STriw_GP_cNotPt_V4 :
-    case Hexagon::STriw_GP_cdnPt_V4 :
-    case Hexagon::STriw_GP_cdnNotPt_V4 :
-    case Hexagon::STd_GP_cPt_V4 :
-    case Hexagon::STd_GP_cNotPt_V4 :
-    case Hexagon::STd_GP_cdnPt_V4 :
-    case Hexagon::STd_GP_cdnNotPt_V4 :
-    case Hexagon::STb_GP_cPt_V4 :
-    case Hexagon::STb_GP_cNotPt_V4 :
-    case Hexagon::STb_GP_cdnPt_V4 :
-    case Hexagon::STb_GP_cdnNotPt_V4 :
-    case Hexagon::STh_GP_cPt_V4 :
-    case Hexagon::STh_GP_cNotPt_V4 :
-    case Hexagon::STh_GP_cdnPt_V4 :
-    case Hexagon::STh_GP_cdnNotPt_V4 :
-    case Hexagon::STw_GP_cPt_V4 :
-    case Hexagon::STw_GP_cNotPt_V4 :
-    case Hexagon::STw_GP_cdnPt_V4 :
-    case Hexagon::STw_GP_cdnNotPt_V4 :
-
-    // V4 predicated global address new value store.
-    case Hexagon::STrib_GP_cPt_nv_V4 :
-    case Hexagon::STrib_GP_cNotPt_nv_V4 :
-    case Hexagon::STrib_GP_cdnPt_nv_V4 :
-    case Hexagon::STrib_GP_cdnNotPt_nv_V4 :
-    case Hexagon::STrih_GP_cPt_nv_V4 :
-    case Hexagon::STrih_GP_cNotPt_nv_V4 :
-    case Hexagon::STrih_GP_cdnPt_nv_V4 :
-    case Hexagon::STrih_GP_cdnNotPt_nv_V4 :
-    case Hexagon::STriw_GP_cPt_nv_V4 :
-    case Hexagon::STriw_GP_cNotPt_nv_V4 :
-    case Hexagon::STriw_GP_cdnPt_nv_V4 :
-    case Hexagon::STriw_GP_cdnNotPt_nv_V4 :
-    case Hexagon::STb_GP_cPt_nv_V4 :
-    case Hexagon::STb_GP_cNotPt_nv_V4 :
-    case Hexagon::STb_GP_cdnPt_nv_V4 :
-    case Hexagon::STb_GP_cdnNotPt_nv_V4 :
-    case Hexagon::STh_GP_cPt_nv_V4 :
-    case Hexagon::STh_GP_cNotPt_nv_V4 :
-    case Hexagon::STh_GP_cdnPt_nv_V4 :
-    case Hexagon::STh_GP_cdnNotPt_nv_V4 :
-    case Hexagon::STw_GP_cPt_nv_V4 :
-    case Hexagon::STw_GP_cNotPt_nv_V4 :
-    case Hexagon::STw_GP_cdnPt_nv_V4 :
-    case Hexagon::STw_GP_cdnNotPt_nv_V4 :
-
-    // TFR_FI
-    case Hexagon::TFR_FI_immext_V4:
-
-    // TFRI_F
-    case Hexagon::TFRI_f:
-    case Hexagon::TFRI_cPt_f:
-    case Hexagon::TFRI_cNotPt_f:
-    case Hexagon::CONST64_Float_Real:
-      return true;
-  }
-}
-
-bool HexagonInstrInfo::isNewValueJump(const MachineInstr *MI) const {
-  switch (MI->getOpcode()) {
-    default: return false;
-    // JMP_EQri
-    case Hexagon::JMP_EQriPt_nv_V4:
-    case Hexagon::JMP_EQriPnt_nv_V4:
-    case Hexagon::JMP_EQriNotPt_nv_V4:
-    case Hexagon::JMP_EQriNotPnt_nv_V4:
-    case Hexagon::JMP_EQriPt_ie_nv_V4:
-    case Hexagon::JMP_EQriPnt_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPt_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPnt_ie_nv_V4:
-
-    // JMP_EQri - with -1
-    case Hexagon::JMP_EQriPtneg_nv_V4:
-    case Hexagon::JMP_EQriPntneg_nv_V4:
-    case Hexagon::JMP_EQriNotPtneg_nv_V4:
-    case Hexagon::JMP_EQriNotPntneg_nv_V4:
-    case Hexagon::JMP_EQriPtneg_ie_nv_V4:
-    case Hexagon::JMP_EQriPntneg_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPtneg_ie_nv_V4:
-    case Hexagon::JMP_EQriNotPntneg_ie_nv_V4:
-
-    // JMP_EQrr
-    case Hexagon::JMP_EQrrPt_nv_V4:
-    case Hexagon::JMP_EQrrPnt_nv_V4:
-    case Hexagon::JMP_EQrrNotPt_nv_V4:
-    case Hexagon::JMP_EQrrNotPnt_nv_V4:
-    case Hexagon::JMP_EQrrPt_ie_nv_V4:
-    case Hexagon::JMP_EQrrPnt_ie_nv_V4:
-    case Hexagon::JMP_EQrrNotPt_ie_nv_V4:
-    case Hexagon::JMP_EQrrNotPnt_ie_nv_V4:
-
-    // JMP_GTri
-    case Hexagon::JMP_GTriPt_nv_V4:
-    case Hexagon::JMP_GTriPnt_nv_V4:
-    case Hexagon::JMP_GTriNotPt_nv_V4:
-    case Hexagon::JMP_GTriNotPnt_nv_V4:
-    case Hexagon::JMP_GTriPt_ie_nv_V4:
-    case Hexagon::JMP_GTriPnt_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPnt_ie_nv_V4:
-
-    // JMP_GTri - with -1
-    case Hexagon::JMP_GTriPtneg_nv_V4:
-    case Hexagon::JMP_GTriPntneg_nv_V4:
-    case Hexagon::JMP_GTriNotPtneg_nv_V4:
-    case Hexagon::JMP_GTriNotPntneg_nv_V4:
-    case Hexagon::JMP_GTriPtneg_ie_nv_V4:
-    case Hexagon::JMP_GTriPntneg_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPtneg_ie_nv_V4:
-    case Hexagon::JMP_GTriNotPntneg_ie_nv_V4:
-
-    // JMP_GTrr
-    case Hexagon::JMP_GTrrPt_nv_V4:
-    case Hexagon::JMP_GTrrPnt_nv_V4:
-    case Hexagon::JMP_GTrrNotPt_nv_V4:
-    case Hexagon::JMP_GTrrNotPnt_nv_V4:
-    case Hexagon::JMP_GTrrPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrPnt_ie_nv_V4:
-    case Hexagon::JMP_GTrrNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrNotPnt_ie_nv_V4:
-
-    // JMP_GTrrdn
-    case Hexagon::JMP_GTrrdnPt_nv_V4:
-    case Hexagon::JMP_GTrrdnPnt_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPt_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPnt_nv_V4:
-    case Hexagon::JMP_GTrrdnPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrdnPnt_ie_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTrrdnNotPnt_ie_nv_V4:
-
-    // JMP_GTUri
-    case Hexagon::JMP_GTUriPt_nv_V4:
-    case Hexagon::JMP_GTUriPnt_nv_V4:
-    case Hexagon::JMP_GTUriNotPt_nv_V4:
-    case Hexagon::JMP_GTUriNotPnt_nv_V4:
-    case Hexagon::JMP_GTUriPt_ie_nv_V4:
-    case Hexagon::JMP_GTUriPnt_ie_nv_V4:
-    case Hexagon::JMP_GTUriNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTUriNotPnt_ie_nv_V4:
-
-    // JMP_GTUrr
-    case Hexagon::JMP_GTUrrPt_nv_V4:
-    case Hexagon::JMP_GTUrrPnt_nv_V4:
-    case Hexagon::JMP_GTUrrNotPt_nv_V4:
-    case Hexagon::JMP_GTUrrNotPnt_nv_V4:
-    case Hexagon::JMP_GTUrrPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrPnt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrNotPnt_ie_nv_V4:
-
-    // JMP_GTUrrdn
-    case Hexagon::JMP_GTUrrdnPt_nv_V4:
-    case Hexagon::JMP_GTUrrdnPnt_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPt_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPnt_nv_V4:
-    case Hexagon::JMP_GTUrrdnPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrdnPnt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPt_ie_nv_V4:
-    case Hexagon::JMP_GTUrrdnNotPnt_ie_nv_V4:
-      return true;
-  }
-}
-
-unsigned HexagonInstrInfo::getImmExtForm(const MachineInstr* MI) const {
-  switch(MI->getOpcode()) {
-    default: llvm_unreachable("Unknown type of instruction.");
-    // JMP_EQri
-    case Hexagon::JMP_EQriPt_nv_V4:
-      return Hexagon::JMP_EQriPt_ie_nv_V4;
-    case Hexagon::JMP_EQriNotPt_nv_V4:
-      return Hexagon::JMP_EQriNotPt_ie_nv_V4;
-    case Hexagon::JMP_EQriPnt_nv_V4:
-      return Hexagon::JMP_EQriPnt_ie_nv_V4;
-    case Hexagon::JMP_EQriNotPnt_nv_V4:
-      return Hexagon::JMP_EQriNotPnt_ie_nv_V4;
-
-    // JMP_EQri -- with -1
-    case Hexagon::JMP_EQriPtneg_nv_V4:
-      return Hexagon::JMP_EQriPtneg_ie_nv_V4;
-    case Hexagon::JMP_EQriNotPtneg_nv_V4:
-      return Hexagon::JMP_EQriNotPtneg_ie_nv_V4;
-    case Hexagon::JMP_EQriPntneg_nv_V4:
-      return Hexagon::JMP_EQriPntneg_ie_nv_V4;
-    case Hexagon::JMP_EQriNotPntneg_nv_V4:
-      return Hexagon::JMP_EQriNotPntneg_ie_nv_V4;
-
-    // JMP_EQrr
-    case Hexagon::JMP_EQrrPt_nv_V4:
-      return Hexagon::JMP_EQrrPt_ie_nv_V4;
-    case Hexagon::JMP_EQrrNotPt_nv_V4:
-      return Hexagon::JMP_EQrrNotPt_ie_nv_V4;
-    case Hexagon::JMP_EQrrPnt_nv_V4:
-      return Hexagon::JMP_EQrrPnt_ie_nv_V4;
-    case Hexagon::JMP_EQrrNotPnt_nv_V4:
-      return Hexagon::JMP_EQrrNotPnt_ie_nv_V4;
-
-    // JMP_GTri
-    case Hexagon::JMP_GTriPt_nv_V4:
-      return Hexagon::JMP_GTriPt_ie_nv_V4;
-    case Hexagon::JMP_GTriNotPt_nv_V4:
-      return Hexagon::JMP_GTriNotPt_ie_nv_V4;
-    case Hexagon::JMP_GTriPnt_nv_V4:
-      return Hexagon::JMP_GTriPnt_ie_nv_V4;
-    case Hexagon::JMP_GTriNotPnt_nv_V4:
-      return Hexagon::JMP_GTriNotPnt_ie_nv_V4;
-
-    // JMP_GTri -- with -1
-    case Hexagon::JMP_GTriPtneg_nv_V4:
-      return Hexagon::JMP_GTriPtneg_ie_nv_V4;
-    case Hexagon::JMP_GTriNotPtneg_nv_V4:
-      return Hexagon::JMP_GTriNotPtneg_ie_nv_V4;
-    case Hexagon::JMP_GTriPntneg_nv_V4:
-      return Hexagon::JMP_GTriPntneg_ie_nv_V4;
-    case Hexagon::JMP_GTriNotPntneg_nv_V4:
-      return Hexagon::JMP_GTriNotPntneg_ie_nv_V4;
-
-    // JMP_GTrr
-    case Hexagon::JMP_GTrrPt_nv_V4:
-      return Hexagon::JMP_GTrrPt_ie_nv_V4;
-    case Hexagon::JMP_GTrrNotPt_nv_V4:
-      return Hexagon::JMP_GTrrNotPt_ie_nv_V4;
-    case Hexagon::JMP_GTrrPnt_nv_V4:
-      return Hexagon::JMP_GTrrPnt_ie_nv_V4;
-    case Hexagon::JMP_GTrrNotPnt_nv_V4:
-      return Hexagon::JMP_GTrrNotPnt_ie_nv_V4;
-
-    // JMP_GTrrdn
-    case Hexagon::JMP_GTrrdnPt_nv_V4:
-      return Hexagon::JMP_GTrrdnPt_ie_nv_V4;
-    case Hexagon::JMP_GTrrdnNotPt_nv_V4:
-      return Hexagon::JMP_GTrrdnNotPt_ie_nv_V4;
-    case Hexagon::JMP_GTrrdnPnt_nv_V4:
-      return Hexagon::JMP_GTrrdnPnt_ie_nv_V4;
-    case Hexagon::JMP_GTrrdnNotPnt_nv_V4:
-      return Hexagon::JMP_GTrrdnNotPnt_ie_nv_V4;
-
-    // JMP_GTUri
-    case Hexagon::JMP_GTUriPt_nv_V4:
-      return Hexagon::JMP_GTUriPt_ie_nv_V4;
-    case Hexagon::JMP_GTUriNotPt_nv_V4:
-      return Hexagon::JMP_GTUriNotPt_ie_nv_V4;
-    case Hexagon::JMP_GTUriPnt_nv_V4:
-      return Hexagon::JMP_GTUriPnt_ie_nv_V4;
-    case Hexagon::JMP_GTUriNotPnt_nv_V4:
-      return Hexagon::JMP_GTUriNotPnt_ie_nv_V4;
-
-    // JMP_GTUrr
-    case Hexagon::JMP_GTUrrPt_nv_V4:
-      return Hexagon::JMP_GTUrrPt_ie_nv_V4;
-    case Hexagon::JMP_GTUrrNotPt_nv_V4:
-      return Hexagon::JMP_GTUrrNotPt_ie_nv_V4;
-    case Hexagon::JMP_GTUrrPnt_nv_V4:
-      return Hexagon::JMP_GTUrrPnt_ie_nv_V4;
-    case Hexagon::JMP_GTUrrNotPnt_nv_V4:
-      return Hexagon::JMP_GTUrrNotPnt_ie_nv_V4;
-
-    // JMP_GTUrrdn
-    case Hexagon::JMP_GTUrrdnPt_nv_V4:
-      return Hexagon::JMP_GTUrrdnPt_ie_nv_V4;
-    case Hexagon::JMP_GTUrrdnNotPt_nv_V4:
-      return Hexagon::JMP_GTUrrdnNotPt_ie_nv_V4;
-    case Hexagon::JMP_GTUrrdnPnt_nv_V4:
-      return Hexagon::JMP_GTUrrdnPnt_ie_nv_V4;
-    case Hexagon::JMP_GTUrrdnNotPnt_nv_V4:
-      return Hexagon::JMP_GTUrrdnNotPnt_ie_nv_V4;
 
-    case Hexagon::TFR_FI:
-        return Hexagon::TFR_FI_immext_V4;
-
-    case Hexagon::MEMw_ADDSUBi_indexed_MEM_V4 :
-    case Hexagon::MEMw_ADDi_indexed_MEM_V4 :
-    case Hexagon::MEMw_SUBi_indexed_MEM_V4 :
-    case Hexagon::MEMw_ADDr_indexed_MEM_V4 :
-    case Hexagon::MEMw_SUBr_indexed_MEM_V4 :
-    case Hexagon::MEMw_ANDr_indexed_MEM_V4 :
-    case Hexagon::MEMw_ORr_indexed_MEM_V4 :
-    case Hexagon::MEMw_ADDSUBi_MEM_V4 :
-    case Hexagon::MEMw_ADDi_MEM_V4 :
-    case Hexagon::MEMw_SUBi_MEM_V4 :
-    case Hexagon::MEMw_ADDr_MEM_V4 :
-    case Hexagon::MEMw_SUBr_MEM_V4 :
-    case Hexagon::MEMw_ANDr_MEM_V4 :
-    case Hexagon::MEMw_ORr_MEM_V4 :
-    case Hexagon::MEMh_ADDSUBi_indexed_MEM_V4 :
-    case Hexagon::MEMh_ADDi_indexed_MEM_V4 :
-    case Hexagon::MEMh_SUBi_indexed_MEM_V4 :
-    case Hexagon::MEMh_ADDr_indexed_MEM_V4 :
-    case Hexagon::MEMh_SUBr_indexed_MEM_V4 :
-    case Hexagon::MEMh_ANDr_indexed_MEM_V4 :
-    case Hexagon::MEMh_ORr_indexed_MEM_V4 :
-    case Hexagon::MEMh_ADDSUBi_MEM_V4 :
-    case Hexagon::MEMh_ADDi_MEM_V4 :
-    case Hexagon::MEMh_SUBi_MEM_V4 :
-    case Hexagon::MEMh_ADDr_MEM_V4 :
-    case Hexagon::MEMh_SUBr_MEM_V4 :
-    case Hexagon::MEMh_ANDr_MEM_V4 :
-    case Hexagon::MEMh_ORr_MEM_V4 :
-    case Hexagon::MEMb_ADDSUBi_indexed_MEM_V4 :
-    case Hexagon::MEMb_ADDi_indexed_MEM_V4 :
-    case Hexagon::MEMb_SUBi_indexed_MEM_V4 :
-    case Hexagon::MEMb_ADDr_indexed_MEM_V4 :
-    case Hexagon::MEMb_SUBr_indexed_MEM_V4 :
-    case Hexagon::MEMb_ANDr_indexed_MEM_V4 :
-    case Hexagon::MEMb_ORr_indexed_MEM_V4 :
-    case Hexagon::MEMb_ADDSUBi_MEM_V4 :
-    case Hexagon::MEMb_ADDi_MEM_V4 :
-    case Hexagon::MEMb_SUBi_MEM_V4 :
-    case Hexagon::MEMb_ADDr_MEM_V4 :
-    case Hexagon::MEMb_SUBr_MEM_V4 :
-    case Hexagon::MEMb_ANDr_MEM_V4 :
-    case Hexagon::MEMb_ORr_MEM_V4 :
-      llvm_unreachable("Needs implementing");
-  }
-}
-
-unsigned HexagonInstrInfo::getNormalBranchForm(const MachineInstr* MI) const {
-  switch(MI->getOpcode()) {
-    default: llvm_unreachable("Unknown type of jump instruction.");
-    // JMP_EQri
-    case Hexagon::JMP_EQriPt_ie_nv_V4:
-      return Hexagon::JMP_EQriPt_nv_V4;
-    case Hexagon::JMP_EQriNotPt_ie_nv_V4:
-      return Hexagon::JMP_EQriNotPt_nv_V4;
-    case Hexagon::JMP_EQriPnt_ie_nv_V4:
-      return Hexagon::JMP_EQriPnt_nv_V4;
-    case Hexagon::JMP_EQriNotPnt_ie_nv_V4:
-      return Hexagon::JMP_EQriNotPnt_nv_V4;
-
-    // JMP_EQri -- with -1
-    case Hexagon::JMP_EQriPtneg_ie_nv_V4:
-      return Hexagon::JMP_EQriPtneg_nv_V4;
-    case Hexagon::JMP_EQriNotPtneg_ie_nv_V4:
-      return Hexagon::JMP_EQriNotPtneg_nv_V4;
-    case Hexagon::JMP_EQriPntneg_ie_nv_V4:
-      return Hexagon::JMP_EQriPntneg_nv_V4;
-    case Hexagon::JMP_EQriNotPntneg_ie_nv_V4:
-      return Hexagon::JMP_EQriNotPntneg_nv_V4;
-
-    // JMP_EQrr
-    case Hexagon::JMP_EQrrPt_ie_nv_V4:
-      return Hexagon::JMP_EQrrPt_nv_V4;
-    case Hexagon::JMP_EQrrNotPt_ie_nv_V4:
-      return Hexagon::JMP_EQrrNotPt_nv_V4;
-    case Hexagon::JMP_EQrrPnt_ie_nv_V4:
-      return Hexagon::JMP_EQrrPnt_nv_V4;
-    case Hexagon::JMP_EQrrNotPnt_ie_nv_V4:
-      return Hexagon::JMP_EQrrNotPnt_nv_V4;
-
-    // JMP_GTri
-    case Hexagon::JMP_GTriPt_ie_nv_V4:
-      return Hexagon::JMP_GTriPt_nv_V4;
-    case Hexagon::JMP_GTriNotPt_ie_nv_V4:
-      return Hexagon::JMP_GTriNotPt_nv_V4;
-    case Hexagon::JMP_GTriPnt_ie_nv_V4:
-      return Hexagon::JMP_GTriPnt_nv_V4;
-    case Hexagon::JMP_GTriNotPnt_ie_nv_V4:
-      return Hexagon::JMP_GTriNotPnt_nv_V4;
-
-    // JMP_GTri -- with -1
-    case Hexagon::JMP_GTriPtneg_ie_nv_V4:
-      return Hexagon::JMP_GTriPtneg_nv_V4;
-    case Hexagon::JMP_GTriNotPtneg_ie_nv_V4:
-      return Hexagon::JMP_GTriNotPtneg_nv_V4;
-    case Hexagon::JMP_GTriPntneg_ie_nv_V4:
-      return Hexagon::JMP_GTriPntneg_nv_V4;
-    case Hexagon::JMP_GTriNotPntneg_ie_nv_V4:
-      return Hexagon::JMP_GTriNotPntneg_nv_V4;
-
-    // JMP_GTrr
-    case Hexagon::JMP_GTrrPt_ie_nv_V4:
-      return Hexagon::JMP_GTrrPt_nv_V4;
-    case Hexagon::JMP_GTrrNotPt_ie_nv_V4:
-      return Hexagon::JMP_GTrrNotPt_nv_V4;
-    case Hexagon::JMP_GTrrPnt_ie_nv_V4:
-      return Hexagon::JMP_GTrrPnt_nv_V4;
-    case Hexagon::JMP_GTrrNotPnt_ie_nv_V4:
-      return Hexagon::JMP_GTrrNotPnt_nv_V4;
-
-    // JMP_GTrrdn
-    case Hexagon::JMP_GTrrdnPt_ie_nv_V4:
-      return Hexagon::JMP_GTrrdnPt_nv_V4;
-    case Hexagon::JMP_GTrrdnNotPt_ie_nv_V4:
-      return Hexagon::JMP_GTrrdnNotPt_nv_V4;
-    case Hexagon::JMP_GTrrdnPnt_ie_nv_V4:
-      return Hexagon::JMP_GTrrdnPnt_nv_V4;
-    case Hexagon::JMP_GTrrdnNotPnt_ie_nv_V4:
-      return Hexagon::JMP_GTrrdnNotPnt_nv_V4;
-
-    // JMP_GTUri
-    case Hexagon::JMP_GTUriPt_ie_nv_V4:
-      return Hexagon::JMP_GTUriPt_nv_V4;
-    case Hexagon::JMP_GTUriNotPt_ie_nv_V4:
-      return Hexagon::JMP_GTUriNotPt_nv_V4;
-    case Hexagon::JMP_GTUriPnt_ie_nv_V4:
-      return Hexagon::JMP_GTUriPnt_nv_V4;
-    case Hexagon::JMP_GTUriNotPnt_ie_nv_V4:
-      return Hexagon::JMP_GTUriNotPnt_nv_V4;
-
-    // JMP_GTUrr
-    case Hexagon::JMP_GTUrrPt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrPt_nv_V4;
-    case Hexagon::JMP_GTUrrNotPt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrNotPt_nv_V4;
-    case Hexagon::JMP_GTUrrPnt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrPnt_nv_V4;
-    case Hexagon::JMP_GTUrrNotPnt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrNotPnt_nv_V4;
-
-    // JMP_GTUrrdn
-    case Hexagon::JMP_GTUrrdnPt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrdnPt_nv_V4;
-    case Hexagon::JMP_GTUrrdnNotPt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrdnNotPt_nv_V4;
-    case Hexagon::JMP_GTUrrdnPnt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrdnPnt_nv_V4;
-    case Hexagon::JMP_GTUrrdnNotPnt_ie_nv_V4:
-      return Hexagon::JMP_GTUrrdnNotPnt_nv_V4;
-  }
-}
-
-
-bool HexagonInstrInfo::isNewValueStore(const MachineInstr *MI) const {
-  switch (MI->getOpcode()) {
-    default: return false;
-    // Store Byte
-    case Hexagon::STrib_nv_V4:
-    case Hexagon::STrib_indexed_nv_V4:
-    case Hexagon::STrib_indexed_shl_nv_V4:
-    case Hexagon::STrib_shl_nv_V4:
-    case Hexagon::STrib_GP_nv_V4:
-    case Hexagon::STb_GP_nv_V4:
-    case Hexagon::POST_STbri_nv_V4:
-    case Hexagon::STrib_cPt_nv_V4:
-    case Hexagon::STrib_cdnPt_nv_V4:
-    case Hexagon::STrib_cNotPt_nv_V4:
-    case Hexagon::STrib_cdnNotPt_nv_V4:
-    case Hexagon::STrib_indexed_cPt_nv_V4:
-    case Hexagon::STrib_indexed_cdnPt_nv_V4:
-    case Hexagon::STrib_indexed_cNotPt_nv_V4:
-    case Hexagon::STrib_indexed_cdnNotPt_nv_V4:
-    case Hexagon::STrib_indexed_shl_cPt_nv_V4:
-    case Hexagon::STrib_indexed_shl_cdnPt_nv_V4:
-    case Hexagon::STrib_indexed_shl_cNotPt_nv_V4:
-    case Hexagon::STrib_indexed_shl_cdnNotPt_nv_V4:
-    case Hexagon::POST_STbri_cPt_nv_V4:
-    case Hexagon::POST_STbri_cdnPt_nv_V4:
-    case Hexagon::POST_STbri_cNotPt_nv_V4:
-    case Hexagon::POST_STbri_cdnNotPt_nv_V4:
-    case Hexagon::STb_GP_cPt_nv_V4:
-    case Hexagon::STb_GP_cNotPt_nv_V4:
-    case Hexagon::STb_GP_cdnPt_nv_V4:
-    case Hexagon::STb_GP_cdnNotPt_nv_V4:
-    case Hexagon::STrib_GP_cPt_nv_V4:
-    case Hexagon::STrib_GP_cNotPt_nv_V4:
-    case Hexagon::STrib_GP_cdnPt_nv_V4:
-    case Hexagon::STrib_GP_cdnNotPt_nv_V4:
-    case Hexagon::STrib_abs_nv_V4:
-    case Hexagon::STrib_abs_cPt_nv_V4:
-    case Hexagon::STrib_abs_cdnPt_nv_V4:
-    case Hexagon::STrib_abs_cNotPt_nv_V4:
-    case Hexagon::STrib_abs_cdnNotPt_nv_V4:
-    case Hexagon::STrib_imm_abs_nv_V4:
-    case Hexagon::STrib_imm_abs_cPt_nv_V4:
-    case Hexagon::STrib_imm_abs_cdnPt_nv_V4:
-    case Hexagon::STrib_imm_abs_cNotPt_nv_V4:
-    case Hexagon::STrib_imm_abs_cdnNotPt_nv_V4:
-
-    // Store Halfword
-    case Hexagon::STrih_nv_V4:
-    case Hexagon::STrih_indexed_nv_V4:
-    case Hexagon::STrih_indexed_shl_nv_V4:
-    case Hexagon::STrih_shl_nv_V4:
-    case Hexagon::STrih_GP_nv_V4:
-    case Hexagon::STh_GP_nv_V4:
-    case Hexagon::POST_SThri_nv_V4:
-    case Hexagon::STrih_cPt_nv_V4:
-    case Hexagon::STrih_cdnPt_nv_V4:
-    case Hexagon::STrih_cNotPt_nv_V4:
-    case Hexagon::STrih_cdnNotPt_nv_V4:
-    case Hexagon::STrih_indexed_cPt_nv_V4:
-    case Hexagon::STrih_indexed_cdnPt_nv_V4:
-    case Hexagon::STrih_indexed_cNotPt_nv_V4:
-    case Hexagon::STrih_indexed_cdnNotPt_nv_V4:
-    case Hexagon::STrih_indexed_shl_cPt_nv_V4:
-    case Hexagon::STrih_indexed_shl_cdnPt_nv_V4:
-    case Hexagon::STrih_indexed_shl_cNotPt_nv_V4:
-    case Hexagon::STrih_indexed_shl_cdnNotPt_nv_V4:
-    case Hexagon::POST_SThri_cPt_nv_V4:
-    case Hexagon::POST_SThri_cdnPt_nv_V4:
-    case Hexagon::POST_SThri_cNotPt_nv_V4:
-    case Hexagon::POST_SThri_cdnNotPt_nv_V4:
-    case Hexagon::STh_GP_cPt_nv_V4:
-    case Hexagon::STh_GP_cNotPt_nv_V4:
-    case Hexagon::STh_GP_cdnPt_nv_V4:
-    case Hexagon::STh_GP_cdnNotPt_nv_V4:
-    case Hexagon::STrih_GP_cPt_nv_V4:
-    case Hexagon::STrih_GP_cNotPt_nv_V4:
-    case Hexagon::STrih_GP_cdnPt_nv_V4:
-    case Hexagon::STrih_GP_cdnNotPt_nv_V4:
-    case Hexagon::STrih_abs_nv_V4:
-    case Hexagon::STrih_abs_cPt_nv_V4:
-    case Hexagon::STrih_abs_cdnPt_nv_V4:
-    case Hexagon::STrih_abs_cNotPt_nv_V4:
-    case Hexagon::STrih_abs_cdnNotPt_nv_V4:
-    case Hexagon::STrih_imm_abs_nv_V4:
-    case Hexagon::STrih_imm_abs_cPt_nv_V4:
-    case Hexagon::STrih_imm_abs_cdnPt_nv_V4:
-    case Hexagon::STrih_imm_abs_cNotPt_nv_V4:
-    case Hexagon::STrih_imm_abs_cdnNotPt_nv_V4:
-
-    // Store Word
-    case Hexagon::STriw_nv_V4:
-    case Hexagon::STriw_indexed_nv_V4:
-    case Hexagon::STriw_indexed_shl_nv_V4:
-    case Hexagon::STriw_shl_nv_V4:
-    case Hexagon::STriw_GP_nv_V4:
-    case Hexagon::STw_GP_nv_V4:
-    case Hexagon::POST_STwri_nv_V4:
-    case Hexagon::STriw_cPt_nv_V4:
-    case Hexagon::STriw_cdnPt_nv_V4:
-    case Hexagon::STriw_cNotPt_nv_V4:
-    case Hexagon::STriw_cdnNotPt_nv_V4:
-    case Hexagon::STriw_indexed_cPt_nv_V4:
-    case Hexagon::STriw_indexed_cdnPt_nv_V4:
-    case Hexagon::STriw_indexed_cNotPt_nv_V4:
-    case Hexagon::STriw_indexed_cdnNotPt_nv_V4:
-    case Hexagon::STriw_indexed_shl_cPt_nv_V4:
-    case Hexagon::STriw_indexed_shl_cdnPt_nv_V4:
-    case Hexagon::STriw_indexed_shl_cNotPt_nv_V4:
-    case Hexagon::STriw_indexed_shl_cdnNotPt_nv_V4:
-    case Hexagon::POST_STwri_cPt_nv_V4:
-    case Hexagon::POST_STwri_cdnPt_nv_V4:
-    case Hexagon::POST_STwri_cNotPt_nv_V4:
-    case Hexagon::POST_STwri_cdnNotPt_nv_V4:
-    case Hexagon::STw_GP_cPt_nv_V4:
-    case Hexagon::STw_GP_cNotPt_nv_V4:
-    case Hexagon::STw_GP_cdnPt_nv_V4:
-    case Hexagon::STw_GP_cdnNotPt_nv_V4:
-    case Hexagon::STriw_GP_cPt_nv_V4:
-    case Hexagon::STriw_GP_cNotPt_nv_V4:
-    case Hexagon::STriw_GP_cdnPt_nv_V4:
-    case Hexagon::STriw_GP_cdnNotPt_nv_V4:
-    case Hexagon::STriw_abs_nv_V4:
-    case Hexagon::STriw_abs_cPt_nv_V4:
-    case Hexagon::STriw_abs_cdnPt_nv_V4:
-    case Hexagon::STriw_abs_cNotPt_nv_V4:
-    case Hexagon::STriw_abs_cdnNotPt_nv_V4:
-    case Hexagon::STriw_imm_abs_nv_V4:
-    case Hexagon::STriw_imm_abs_cPt_nv_V4:
-    case Hexagon::STriw_imm_abs_cdnPt_nv_V4:
-    case Hexagon::STriw_imm_abs_cNotPt_nv_V4:
-    case Hexagon::STriw_imm_abs_cdnNotPt_nv_V4:
-      return true;
-  }
-}
-
-bool HexagonInstrInfo::isPostIncrement (const MachineInstr* MI) const {
-  switch (MI->getOpcode())
-  {
-    default: return false;
-    // Load Byte
-    case Hexagon::POST_LDrib:
-    case Hexagon::POST_LDrib_cPt:
-    case Hexagon::POST_LDrib_cNotPt:
-    case Hexagon::POST_LDrib_cdnPt_V4:
-    case Hexagon::POST_LDrib_cdnNotPt_V4:
-
-    // Load unsigned byte
-    case Hexagon::POST_LDriub:
-    case Hexagon::POST_LDriub_cPt:
-    case Hexagon::POST_LDriub_cNotPt:
-    case Hexagon::POST_LDriub_cdnPt_V4:
-    case Hexagon::POST_LDriub_cdnNotPt_V4:
-
-    // Load halfword
-    case Hexagon::POST_LDrih:
-    case Hexagon::POST_LDrih_cPt:
-    case Hexagon::POST_LDrih_cNotPt:
-    case Hexagon::POST_LDrih_cdnPt_V4:
-    case Hexagon::POST_LDrih_cdnNotPt_V4:
-
-    // Load unsigned halfword
-    case Hexagon::POST_LDriuh:
-    case Hexagon::POST_LDriuh_cPt:
-    case Hexagon::POST_LDriuh_cNotPt:
-    case Hexagon::POST_LDriuh_cdnPt_V4:
-    case Hexagon::POST_LDriuh_cdnNotPt_V4:
-
-    // Load word
-    case Hexagon::POST_LDriw:
-    case Hexagon::POST_LDriw_cPt:
-    case Hexagon::POST_LDriw_cNotPt:
-    case Hexagon::POST_LDriw_cdnPt_V4:
-    case Hexagon::POST_LDriw_cdnNotPt_V4:
-
-    // Load double word
-    case Hexagon::POST_LDrid:
-    case Hexagon::POST_LDrid_cPt:
-    case Hexagon::POST_LDrid_cNotPt:
-    case Hexagon::POST_LDrid_cdnPt_V4:
-    case Hexagon::POST_LDrid_cdnNotPt_V4:
-
-    // Store byte
-    case Hexagon::POST_STbri:
-    case Hexagon::POST_STbri_cPt:
-    case Hexagon::POST_STbri_cNotPt:
-    case Hexagon::POST_STbri_cdnPt_V4:
-    case Hexagon::POST_STbri_cdnNotPt_V4:
-
-    // Store halfword
-    case Hexagon::POST_SThri:
-    case Hexagon::POST_SThri_cPt:
-    case Hexagon::POST_SThri_cNotPt:
-    case Hexagon::POST_SThri_cdnPt_V4:
-    case Hexagon::POST_SThri_cdnNotPt_V4:
-
-    // Store word
-    case Hexagon::POST_STwri:
-    case Hexagon::POST_STwri_cPt:
-    case Hexagon::POST_STwri_cNotPt:
-    case Hexagon::POST_STwri_cdnPt_V4:
-    case Hexagon::POST_STwri_cdnNotPt_V4:
-
-    // Store double word
-    case Hexagon::POST_STdri:
-    case Hexagon::POST_STdri_cPt:
-    case Hexagon::POST_STdri_cNotPt:
-    case Hexagon::POST_STdri_cdnPt_V4:
-    case Hexagon::POST_STdri_cdnNotPt_V4:
-      return true;
-  }
-}
-
-bool HexagonInstrInfo::isSaveCalleeSavedRegsCall(const MachineInstr *MI) const {
-  return MI->getOpcode() == Hexagon::SAVE_REGISTERS_CALL_V4;
-}
 
 bool HexagonInstrInfo::isPredicable(MachineInstr *MI) const {
   bool isPred = MI->getDesc().isPredicable();
@@ -1397,7 +558,6 @@ bool HexagonInstrInfo::isPredicable(MachineInstr *MI) const {
 
 unsigned HexagonInstrInfo::getInvertedPredicatedOpcode(const int Opc) const {
   switch(Opc) {
-    default: llvm_unreachable("Unexpected predicated instruction");
     case Hexagon::TFR_cPt:
       return Hexagon::TFR_cNotPt;
     case Hexagon::TFR_cNotPt:
@@ -1644,47 +804,6 @@ unsigned HexagonInstrInfo::getInvertedPredicatedOpcode(const int Opc) const {
     case Hexagon::STrid_indexed_shl_cNotPt_V4:
       return Hexagon::STrid_indexed_shl_cPt_V4;
 
-    // V4 Store to global address.
-    case Hexagon::STd_GP_cPt_V4:
-      return Hexagon::STd_GP_cNotPt_V4;
-    case Hexagon::STd_GP_cNotPt_V4:
-      return Hexagon::STd_GP_cPt_V4;
-
-    case Hexagon::STb_GP_cPt_V4:
-      return Hexagon::STb_GP_cNotPt_V4;
-    case Hexagon::STb_GP_cNotPt_V4:
-      return Hexagon::STb_GP_cPt_V4;
-
-    case Hexagon::STh_GP_cPt_V4:
-      return Hexagon::STh_GP_cNotPt_V4;
-    case Hexagon::STh_GP_cNotPt_V4:
-      return Hexagon::STh_GP_cPt_V4;
-
-    case Hexagon::STw_GP_cPt_V4:
-      return Hexagon::STw_GP_cNotPt_V4;
-    case Hexagon::STw_GP_cNotPt_V4:
-      return Hexagon::STw_GP_cPt_V4;
-
-    case Hexagon::STrid_GP_cPt_V4:
-      return Hexagon::STrid_GP_cNotPt_V4;
-    case Hexagon::STrid_GP_cNotPt_V4:
-      return Hexagon::STrid_GP_cPt_V4;
-
-    case Hexagon::STrib_GP_cPt_V4:
-      return Hexagon::STrib_GP_cNotPt_V4;
-    case Hexagon::STrib_GP_cNotPt_V4:
-      return Hexagon::STrib_GP_cPt_V4;
-
-    case Hexagon::STrih_GP_cPt_V4:
-      return Hexagon::STrih_GP_cNotPt_V4;
-    case Hexagon::STrih_GP_cNotPt_V4:
-      return Hexagon::STrih_GP_cPt_V4;
-
-    case Hexagon::STriw_GP_cPt_V4:
-      return Hexagon::STriw_GP_cNotPt_V4;
-    case Hexagon::STriw_GP_cNotPt_V4:
-      return Hexagon::STriw_GP_cPt_V4;
-
   // Load.
     case Hexagon::LDrid_cPt:
       return Hexagon::LDrid_cNotPt;
@@ -1889,6 +1008,9 @@ unsigned HexagonInstrInfo::getInvertedPredicatedOpcode(const int Opc) const {
       return Hexagon::JMP_GTUrrdnNotPnt_nv_V4;
     case Hexagon::JMP_GTUrrdnNotPnt_nv_V4:
       return Hexagon::JMP_GTUrrdnPnt_nv_V4;
+
+  default:
+    llvm_unreachable("Unexpected predicated instruction");
   }
 }
 
@@ -1899,21 +1021,12 @@ getMatchingCondBranchOpcode(int Opc, bool invertPredicate) const {
   case Hexagon::TFR:
     return !invertPredicate ? Hexagon::TFR_cPt :
                               Hexagon::TFR_cNotPt;
-  case Hexagon::TFRI_f:
-    return !invertPredicate ? Hexagon::TFRI_cPt_f :
-                              Hexagon::TFRI_cNotPt_f;
   case Hexagon::TFRI:
     return !invertPredicate ? Hexagon::TFRI_cPt :
                               Hexagon::TFRI_cNotPt;
   case Hexagon::JMP:
     return !invertPredicate ? Hexagon::JMP_c :
                               Hexagon::JMP_cNot;
-  case Hexagon::JMP_EQrrPt_nv_V4:
-    return !invertPredicate ? Hexagon::JMP_EQrrPt_nv_V4 :
-                              Hexagon::JMP_EQrrNotPt_nv_V4;
-  case Hexagon::JMP_EQriPt_nv_V4:
-    return !invertPredicate ? Hexagon::JMP_EQriPt_nv_V4 :
-                              Hexagon::JMP_EQriNotPt_nv_V4;
   case Hexagon::ADD_ri:
     return !invertPredicate ? Hexagon::ADD_ri_cPt :
                               Hexagon::ADD_ri_cNotPt;
@@ -2007,46 +1120,6 @@ getMatchingCondBranchOpcode(int Opc, bool invertPredicate) const {
   case Hexagon::LDriw_indexed_shl_V4:
     return !invertPredicate ? Hexagon::LDriw_indexed_shl_cPt_V4 :
                               Hexagon::LDriw_indexed_shl_cNotPt_V4;
-
-  // V4 Load from global address
-  case Hexagon::LDrid_GP_V4:
-    return !invertPredicate ? Hexagon::LDrid_GP_cPt_V4 :
-                              Hexagon::LDrid_GP_cNotPt_V4;
-  case Hexagon::LDrib_GP_V4:
-    return !invertPredicate ? Hexagon::LDrib_GP_cPt_V4 :
-                              Hexagon::LDrib_GP_cNotPt_V4;
-  case Hexagon::LDriub_GP_V4:
-    return !invertPredicate ? Hexagon::LDriub_GP_cPt_V4 :
-                              Hexagon::LDriub_GP_cNotPt_V4;
-  case Hexagon::LDrih_GP_V4:
-    return !invertPredicate ? Hexagon::LDrih_GP_cPt_V4 :
-                              Hexagon::LDrih_GP_cNotPt_V4;
-  case Hexagon::LDriuh_GP_V4:
-    return !invertPredicate ? Hexagon::LDriuh_GP_cPt_V4 :
-                              Hexagon::LDriuh_GP_cNotPt_V4;
-  case Hexagon::LDriw_GP_V4:
-    return !invertPredicate ? Hexagon::LDriw_GP_cPt_V4 :
-                              Hexagon::LDriw_GP_cNotPt_V4;
-
-  case Hexagon::LDd_GP_V4:
-    return !invertPredicate ? Hexagon::LDd_GP_cPt_V4 :
-                              Hexagon::LDd_GP_cNotPt_V4;
-  case Hexagon::LDb_GP_V4:
-    return !invertPredicate ? Hexagon::LDb_GP_cPt_V4 :
-                              Hexagon::LDb_GP_cNotPt_V4;
-  case Hexagon::LDub_GP_V4:
-    return !invertPredicate ? Hexagon::LDub_GP_cPt_V4 :
-                              Hexagon::LDub_GP_cNotPt_V4;
-  case Hexagon::LDh_GP_V4:
-    return !invertPredicate ? Hexagon::LDh_GP_cPt_V4 :
-                              Hexagon::LDh_GP_cNotPt_V4;
-  case Hexagon::LDuh_GP_V4:
-    return !invertPredicate ? Hexagon::LDuh_GP_cPt_V4 :
-                              Hexagon::LDuh_GP_cNotPt_V4;
-  case Hexagon::LDw_GP_V4:
-    return !invertPredicate ? Hexagon::LDw_GP_cPt_V4 :
-                              Hexagon::LDw_GP_cNotPt_V4;
-
     // Byte.
   case Hexagon::POST_STbri:
     return !invertPredicate ? Hexagon::POST_STbri_cPt :
@@ -2108,34 +1181,6 @@ getMatchingCondBranchOpcode(int Opc, bool invertPredicate) const {
   case Hexagon::STrid_indexed_shl_V4:
     return !invertPredicate ? Hexagon::STrid_indexed_shl_cPt_V4 :
                               Hexagon::STrid_indexed_shl_cNotPt_V4;
-
-  // V4 Store to global address
-  case Hexagon::STrid_GP_V4:
-    return !invertPredicate ? Hexagon::STrid_GP_cPt_V4 :
-                              Hexagon::STrid_GP_cNotPt_V4;
-  case Hexagon::STrib_GP_V4:
-    return !invertPredicate ? Hexagon::STrib_GP_cPt_V4 :
-                              Hexagon::STrib_GP_cNotPt_V4;
-  case Hexagon::STrih_GP_V4:
-    return !invertPredicate ? Hexagon::STrih_GP_cPt_V4 :
-                              Hexagon::STrih_GP_cNotPt_V4;
-  case Hexagon::STriw_GP_V4:
-    return !invertPredicate ? Hexagon::STriw_GP_cPt_V4 :
-                              Hexagon::STriw_GP_cNotPt_V4;
-
-  case Hexagon::STd_GP_V4:
-    return !invertPredicate ? Hexagon::STd_GP_cPt_V4 :
-                              Hexagon::STd_GP_cNotPt_V4;
-  case Hexagon::STb_GP_V4:
-    return !invertPredicate ? Hexagon::STb_GP_cPt_V4 :
-                              Hexagon::STb_GP_cNotPt_V4;
-  case Hexagon::STh_GP_V4:
-    return !invertPredicate ? Hexagon::STh_GP_cPt_V4 :
-                              Hexagon::STh_GP_cNotPt_V4;
-  case Hexagon::STw_GP_V4:
-    return !invertPredicate ? Hexagon::STw_GP_cPt_V4 :
-                              Hexagon::STw_GP_cNotPt_V4;
-
   // Load.
   case Hexagon::LDrid:
     return !invertPredicate ? Hexagon::LDrid_cPt :
@@ -2155,6 +1200,9 @@ getMatchingCondBranchOpcode(int Opc, bool invertPredicate) const {
   case Hexagon::LDriub:
     return !invertPredicate ? Hexagon::LDriub_cPt :
                               Hexagon::LDriub_cNotPt;
+  case Hexagon::LDriubit:
+    return !invertPredicate ? Hexagon::LDriub_cPt :
+                              Hexagon::LDriub_cNotPt;
  // Load Indexed.
   case Hexagon::LDrid_indexed:
     return !invertPredicate ? Hexagon::LDrid_indexed_cPt :
@@ -2274,6 +1322,7 @@ bool HexagonInstrInfo::isPredicated(const MachineInstr *MI) const {
   return ((F >> HexagonII::PredicatedPos) & HexagonII::PredicatedMask);
 }
 
+
 bool
 HexagonInstrInfo::DefinesPredicate(MachineInstr *MI,
                                    std::vector<MachineOperand> &Pred) const {
@@ -2323,7 +1372,6 @@ isProfitableToDupForIfCvt(MachineBasicBlock &MBB,unsigned NumInstrs,
 
 bool HexagonInstrInfo::isDeallocRet(const MachineInstr *MI) const {
   switch (MI->getOpcode()) {
-  default: return false;
   case Hexagon::DEALLOC_RET_V4 :
   case Hexagon::DEALLOC_RET_cPt_V4 :
   case Hexagon::DEALLOC_RET_cNotPt_V4 :
@@ -2333,6 +1381,7 @@ bool HexagonInstrInfo::isDeallocRet(const MachineInstr *MI) const {
   case Hexagon::DEALLOC_RET_cNotdnPt_V4 :
    return true;
   }
+  return false;
 }
 
 
@@ -2346,17 +1395,13 @@ isValidOffset(const int Opcode, const int Offset) const {
   switch(Opcode) {
 
   case Hexagon::LDriw:
-  case Hexagon::LDriw_f:
   case Hexagon::STriw:
-  case Hexagon::STriw_f:
     assert((Offset % 4 == 0) && "Offset has incorrect alignment");
     return (Offset >= Hexagon_MEMW_OFFSET_MIN) &&
       (Offset <= Hexagon_MEMW_OFFSET_MAX);
 
   case Hexagon::LDrid:
-  case Hexagon::LDrid_f:
   case Hexagon::STrid:
-  case Hexagon::STrid_f:
     assert((Offset % 8 == 0) && "Offset has incorrect alignment");
     return (Offset >= Hexagon_MEMD_OFFSET_MIN) &&
       (Offset <= Hexagon_MEMD_OFFSET_MAX);
@@ -2364,6 +1409,7 @@ isValidOffset(const int Opcode, const int Offset) const {
   case Hexagon::LDrih:
   case Hexagon::LDriuh:
   case Hexagon::STrih:
+  case Hexagon::LDrih_ae:
     assert((Offset % 2 == 0) && "Offset has incorrect alignment");
     return (Offset >= Hexagon_MEMH_OFFSET_MIN) &&
       (Offset <= Hexagon_MEMH_OFFSET_MAX);
@@ -2371,6 +1417,9 @@ isValidOffset(const int Opcode, const int Offset) const {
   case Hexagon::LDrib:
   case Hexagon::STrib:
   case Hexagon::LDriub:
+  case Hexagon::LDriubit:
+  case Hexagon::LDrib_ae:
+  case Hexagon::LDriub_ae:
     return (Offset >= Hexagon_MEMB_OFFSET_MIN) &&
       (Offset <= Hexagon_MEMB_OFFSET_MAX);
 
@@ -2478,7 +1527,6 @@ bool HexagonInstrInfo::
 isMemOp(const MachineInstr *MI) const {
   switch (MI->getOpcode())
   {
-    default: return false;
     case Hexagon::MEMw_ADDSUBi_indexed_MEM_V4 :
     case Hexagon::MEMw_ADDi_indexed_MEM_V4 :
     case Hexagon::MEMw_SUBi_indexed_MEM_V4 :
@@ -2521,62 +1569,28 @@ isMemOp(const MachineInstr *MI) const {
     case Hexagon::MEMb_SUBr_MEM_V4 :
     case Hexagon::MEMb_ANDr_MEM_V4 :
     case Hexagon::MEMb_ORr_MEM_V4 :
-      return true;
+    return true;
   }
+  return false;
 }
 
 
 bool HexagonInstrInfo::
 isSpillPredRegOp(const MachineInstr *MI) const {
-  switch (MI->getOpcode()) {
-    default: return false;
+  switch (MI->getOpcode())
+  {
     case Hexagon::STriw_pred :
     case Hexagon::LDriw_pred :
-      return true;
-  }
-}
-
-bool HexagonInstrInfo::isNewValueJumpCandidate(const MachineInstr *MI) const {
-  switch (MI->getOpcode()) {
-    case Hexagon::CMPEQrr:
-    case Hexagon::CMPEQri:
-    case Hexagon::CMPLTrr:
-    case Hexagon::CMPGTrr:
-    case Hexagon::CMPGTri:
-    case Hexagon::CMPLTUrr:
-    case Hexagon::CMPGTUrr:
-    case Hexagon::CMPGTUri:
-    case Hexagon::CMPGEri:
-    case Hexagon::CMPGEUri:
-      return true;
-
-    default:
-      return false;
+    return true;
   }
   return false;
 }
 
-bool HexagonInstrInfo::
-isConditionalTransfer (const MachineInstr *MI) const {
-  switch (MI->getOpcode()) {
-    default: return false;
-    case Hexagon::TFR_cPt:
-    case Hexagon::TFR_cNotPt:
-    case Hexagon::TFRI_cPt:
-    case Hexagon::TFRI_cNotPt:
-    case Hexagon::TFR_cdnPt:
-    case Hexagon::TFR_cdnNotPt:
-    case Hexagon::TFRI_cdnPt:
-    case Hexagon::TFRI_cdnNotPt:
-      return true;
-  }
-}
 
 bool HexagonInstrInfo::isConditionalALU32 (const MachineInstr* MI) const {
   const HexagonRegisterInfo& QRI = getRegisterInfo();
   switch (MI->getOpcode())
   {
-    default: return false;
     case Hexagon::ADD_ri_cPt:
     case Hexagon::ADD_ri_cNotPt:
     case Hexagon::ADD_rr_cPt:
@@ -2604,16 +1618,19 @@ bool HexagonInstrInfo::isConditionalALU32 (const MachineInstr* MI) const {
     case Hexagon::ZXTB_cNotPt_V4:
     case Hexagon::ZXTH_cPt_V4:
     case Hexagon::ZXTH_cNotPt_V4:
-      return QRI.Subtarget.hasV4TOps();
+      return QRI.Subtarget.getHexagonArchVersion() == HexagonSubtarget::V4;
+
+    default:
+      return false;
   }
 }
 
+
 bool HexagonInstrInfo::
 isConditionalLoad (const MachineInstr* MI) const {
   const HexagonRegisterInfo& QRI = getRegisterInfo();
   switch (MI->getOpcode())
   {
-    default: return false;
     case Hexagon::LDrid_cPt :
     case Hexagon::LDrid_cNotPt :
     case Hexagon::LDrid_indexed_cPt :
@@ -2651,7 +1668,7 @@ isConditionalLoad (const MachineInstr* MI) const {
     case Hexagon::POST_LDriuh_cNotPt :
     case Hexagon::POST_LDriub_cPt :
     case Hexagon::POST_LDriub_cNotPt :
-      return QRI.Subtarget.hasV4TOps();
+      return QRI.Subtarget.getHexagonArchVersion() == HexagonSubtarget::V4;
     case Hexagon::LDrid_indexed_cPt_V4 :
     case Hexagon::LDrid_indexed_cNotPt_V4 :
     case Hexagon::LDrid_indexed_shl_cPt_V4 :
@@ -2676,136 +1693,12 @@ isConditionalLoad (const MachineInstr* MI) const {
     case Hexagon::LDriw_indexed_cNotPt_V4 :
     case Hexagon::LDriw_indexed_shl_cPt_V4 :
     case Hexagon::LDriw_indexed_shl_cNotPt_V4 :
-      return QRI.Subtarget.hasV4TOps();
-  }
-}
-
-// Returns true if an instruction is a conditional store.
-//
-// Note: It doesn't include conditional new-value stores as they can't be
-// converted to .new predicate.
-//
-//               p.new NV store [ if(p0.new)memw(R0+#0)=R2.new ]
-//                ^           ^
-//               /             \ (not OK. it will cause new-value store to be
-//              /               X conditional on p0.new while R2 producer is
-//             /                 \ on p0)
-//            /                   \.
-//     p.new store                 p.old NV store
-// [if(p0.new)memw(R0+#0)=R2]    [if(p0)memw(R0+#0)=R2.new]
-//            ^                  ^
-//             \                /
-//              \              /
-//               \            /
-//                 p.old store
-//             [if (p0)memw(R0+#0)=R2]
-//
-// The above diagram shows the steps involoved in the conversion of a predicated
-// store instruction to its .new predicated new-value form.
-//
-// The following set of instructions further explains the scenario where
-// conditional new-value store becomes invalid when promoted to .new predicate
-// form.
-//
-// { 1) if (p0) r0 = add(r1, r2)
-//   2) p0 = cmp.eq(r3, #0) }
-//
-//   3) if (p0) memb(r1+#0) = r0  --> this instruction can't be grouped with
-// the first two instructions because in instr 1, r0 is conditional on old value
-// of p0 but its use in instr 3 is conditional on p0 modified by instr 2 which
-// is not valid for new-value stores.
-bool HexagonInstrInfo::
-isConditionalStore (const MachineInstr* MI) const {
-  const HexagonRegisterInfo& QRI = getRegisterInfo();
-  switch (MI->getOpcode())
-  {
-    default: return false;
-    case Hexagon::STrib_imm_cPt_V4 :
-    case Hexagon::STrib_imm_cNotPt_V4 :
-    case Hexagon::STrib_indexed_shl_cPt_V4 :
-    case Hexagon::STrib_indexed_shl_cNotPt_V4 :
-    case Hexagon::STrib_cPt :
-    case Hexagon::STrib_cNotPt :
-    case Hexagon::POST_STbri_cPt :
-    case Hexagon::POST_STbri_cNotPt :
-    case Hexagon::STrid_indexed_cPt :
-    case Hexagon::STrid_indexed_cNotPt :
-    case Hexagon::STrid_indexed_shl_cPt_V4 :
-    case Hexagon::POST_STdri_cPt :
-    case Hexagon::POST_STdri_cNotPt :
-    case Hexagon::STrih_cPt :
-    case Hexagon::STrih_cNotPt :
-    case Hexagon::STrih_indexed_cPt :
-    case Hexagon::STrih_indexed_cNotPt :
-    case Hexagon::STrih_imm_cPt_V4 :
-    case Hexagon::STrih_imm_cNotPt_V4 :
-    case Hexagon::STrih_indexed_shl_cPt_V4 :
-    case Hexagon::STrih_indexed_shl_cNotPt_V4 :
-    case Hexagon::POST_SThri_cPt :
-    case Hexagon::POST_SThri_cNotPt :
-    case Hexagon::STriw_cPt :
-    case Hexagon::STriw_cNotPt :
-    case Hexagon::STriw_indexed_cPt :
-    case Hexagon::STriw_indexed_cNotPt :
-    case Hexagon::STriw_imm_cPt_V4 :
-    case Hexagon::STriw_imm_cNotPt_V4 :
-    case Hexagon::STriw_indexed_shl_cPt_V4 :
-    case Hexagon::STriw_indexed_shl_cNotPt_V4 :
-    case Hexagon::POST_STwri_cPt :
-    case Hexagon::POST_STwri_cNotPt :
-      return QRI.Subtarget.hasV4TOps();
-
-    // V4 global address store before promoting to dot new.
-    case Hexagon::STrid_GP_cPt_V4 :
-    case Hexagon::STrid_GP_cNotPt_V4 :
-    case Hexagon::STrib_GP_cPt_V4 :
-    case Hexagon::STrib_GP_cNotPt_V4 :
-    case Hexagon::STrih_GP_cPt_V4 :
-    case Hexagon::STrih_GP_cNotPt_V4 :
-    case Hexagon::STriw_GP_cPt_V4 :
-    case Hexagon::STriw_GP_cNotPt_V4 :
-    case Hexagon::STd_GP_cPt_V4 :
-    case Hexagon::STd_GP_cNotPt_V4 :
-    case Hexagon::STb_GP_cPt_V4 :
-    case Hexagon::STb_GP_cNotPt_V4 :
-    case Hexagon::STh_GP_cPt_V4 :
-    case Hexagon::STh_GP_cNotPt_V4 :
-    case Hexagon::STw_GP_cPt_V4 :
-    case Hexagon::STw_GP_cNotPt_V4 :
-      return QRI.Subtarget.hasV4TOps();
-
-    // Predicated new value stores (i.e. if (p0) memw(..)=r0.new) are excluded
-    // from the "Conditional Store" list. Because a predicated new value store
-    // would NOT be promoted to a double dot new store. See diagram below:
-    // This function returns yes for those stores that are predicated but not
-    // yet promoted to predicate dot new instructions.
-    //
-    //                          +---------------------+
-    //                    /-----| if (p0) memw(..)=r0 |---------\~
-    //                   ||     +---------------------+         ||
-    //          promote  ||       /\       /\                   ||  promote
-    //                   ||      /||\     /||\                  ||
-    //                  \||/    demote     ||                  \||/
-    //                   \/       ||       ||                   \/
-    //       +-------------------------+   ||   +-------------------------+
-    //       | if (p0.new) memw(..)=r0 |   ||   | if (p0) memw(..)=r0.new |
-    //       +-------------------------+   ||   +-------------------------+
-    //                        ||           ||         ||
-    //                        ||         demote      \||/
-    //                      promote        ||         \/ NOT possible
-    //                        ||           ||         /\~
-    //                       \||/          ||        /||\~
-    //                        \/           ||         ||
-    //                      +-----------------------------+
-    //                      | if (p0.new) memw(..)=r0.new |
-    //                      +-----------------------------+
-    //                           Double Dot New Store
-    //
+      return QRI.Subtarget.getHexagonArchVersion() == HexagonSubtarget::V4;
+    default:
+      return false;
   }
 }
 
-
-
 DFAPacketizer *HexagonInstrInfo::
 CreateTargetScheduleState(const TargetMachine *TM,
                            const ScheduleDAG *DAG) const {