- Added MCSubtargetInfo to capture subtarget features and scheduling

  itineraries.
- Refactor TargetSubtarget to be based on MCSubtargetInfo.
- Change tablegen generated subtarget info to initialize MCSubtargetInfo
  and hide more details from targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134257 91177308-0d34-0410-b5e6-96231b3b80d8

28 files changed, 201 insertions, 28 deletions

diff --git a/lib/MC/CMakeLists.txt b/lib/MC/CMakeLists.txt
index 00e534fb33..22afa7e91c 100644
--- a/lib/MC/CMakeLists.txt
+++ b/lib/MC/CMakeLists.txt
@@ -28,6 +28,7 @@ add_llvm_library(LLVMMC
   MCSectionELF.cpp
   MCSectionMachO.cpp
   MCStreamer.cpp
+  MCSubtargetInfo.cpp
   MCSymbol.cpp
   MCValue.cpp
   MCWin64EH.cpp
diff --git a/lib/MC/MCSubtargetInfo.cpp b/lib/MC/MCSubtargetInfo.cpp
new file mode 100644
index 0000000000..c401b7e1de
--- /dev/null
+++ b/lib/MC/MCSubtargetInfo.cpp
@@ -0,0 +1,44 @@
+//===-- MCSubtargetInfo.cpp - Subtarget Information -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCInstrItineraries.h"
+#include "llvm/MC/SubtargetFeature.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+
+using namespace llvm;
+
+InstrItineraryData
+MCSubtargetInfo::getInstrItineraryForCPU(StringRef CPU) const {
+  assert(ProcItins && "Instruction itineraries information not available!");
+
+#ifndef NDEBUG
+  for (size_t i = 1; i < NumProcs; i++) {
+    assert(strcmp(ProcItins[i - 1].Key, ProcItins[i].Key) < 0 &&
+           "Itineraries table is not sorted");
+  }
+#endif
+
+  // Find entry
+  SubtargetInfoKV KV;
+  KV.Key = CPU.data();
+  const SubtargetInfoKV *Found =
+    std::lower_bound(ProcItins, ProcItins+NumProcs, KV);
+  if (Found == ProcItins+NumProcs || StringRef(Found->Key) != CPU) {
+    errs() << "'" << CPU
+           << "' is not a recognized processor for this target"
+           << " (ignoring processor)\n";
+    return InstrItineraryData();
+  }
+
+  return InstrItineraryData(Stages, OperandCycles, ForwardingPathes,
+                            (InstrItinerary *)Found->Value);
+}
diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index 694b31385b..01acde0ffd 100644
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -12,11 +12,17 @@
 //===----------------------------------------------------------------------===//
 
 #include "ARMSubtarget.h"
-#include "ARMGenSubtarget.inc"
 #include "ARMBaseRegisterInfo.h"
 #include "llvm/GlobalValue.h"
+#include "llvm/Target/TargetSubtarget.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/ADT/SmallVector.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "ARMGenSubtarget.inc"
+
 using namespace llvm;
 
 static cl::opt<bool>
@@ -32,7 +38,8 @@ StrictAlign("arm-strict-align", cl::Hidden,
 
 ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &CPU,
                            const std::string &FS, bool isT)
-  : ARMArchVersion(V4)
+  : ARMGenSubtargetInfo()
+  , ARMArchVersion(V4)
   , ARMProcFamily(Others)
   , ARMFPUType(None)
   , UseNEONForSinglePrecisionFP(false)
@@ -130,6 +137,9 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &CPU,
     FSWithArch = FSWithArch + "," + FS;
   ParseSubtargetFeatures(FSWithArch, CPUString);
 
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(CPUString);
+
   // After parsing Itineraries, set ItinData.IssueWidth.
   computeIssueWidth();
 
diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
index 7c93173061..fbe8322731 100644
--- a/lib/Target/ARM/ARMSubtarget.h
+++ b/lib/Target/ARM/ARMSubtarget.h
@@ -19,10 +19,13 @@
 #include "llvm/ADT/Triple.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "ARMGenSubtarget.inc"
+
 namespace llvm {
 class GlobalValue;
 
-class ARMSubtarget : public TargetSubtarget {
+class ARMSubtarget : public ARMGenSubtargetInfo {
 protected:
   enum ARMArchEnum {
     V4, V4T, V5T, V5TE, V6, V6M, V6T2, V7A, V7M
diff --git a/lib/Target/Alpha/AlphaSubtarget.cpp b/lib/Target/Alpha/AlphaSubtarget.cpp
index 7080327f1d..5ed2d31278 100644
--- a/lib/Target/Alpha/AlphaSubtarget.cpp
+++ b/lib/Target/Alpha/AlphaSubtarget.cpp
@@ -14,15 +14,24 @@
 #include "AlphaSubtarget.h"
 #include "Alpha.h"
 #include "AlphaGenSubtarget.inc"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "AlphaGenSubtarget.inc"
+
 using namespace llvm;
 
 AlphaSubtarget::AlphaSubtarget(const std::string &TT, const std::string &CPU,
                                const std::string &FS)
-  : HasCT(false) {
+  : AlphaGenSubtargetInfo(), HasCT(false) {
   std::string CPUName = CPU;
   if (CPUName.empty())
     CPUName = "generic";
 
   // Parse features string.
   ParseSubtargetFeatures(FS, CPUName);
+
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(CPUName);
 }
diff --git a/lib/Target/Alpha/AlphaSubtarget.h b/lib/Target/Alpha/AlphaSubtarget.h
index b1ccf26b18..0bd161c9e9 100644
--- a/lib/Target/Alpha/AlphaSubtarget.h
+++ b/lib/Target/Alpha/AlphaSubtarget.h
@@ -18,9 +18,12 @@
 #include "llvm/MC/MCInstrItineraries.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "AlphaGenSubtarget.inc"
+
 namespace llvm {
 
-class AlphaSubtarget : public TargetSubtarget {
+class AlphaSubtarget : public AlphaGenSubtargetInfo {
 protected:
 
   bool HasCT;
diff --git a/lib/Target/Blackfin/BlackfinSubtarget.cpp b/lib/Target/Blackfin/BlackfinSubtarget.cpp
index 5092026451..f0328e0724 100644
--- a/lib/Target/Blackfin/BlackfinSubtarget.cpp
+++ b/lib/Target/Blackfin/BlackfinSubtarget.cpp
@@ -12,6 +12,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "BlackfinSubtarget.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
 #include "BlackfinGenSubtarget.inc"
 
 using namespace llvm;
@@ -19,7 +23,7 @@ using namespace llvm;
 BlackfinSubtarget::BlackfinSubtarget(const std::string &TT,
                                      const std::string &CPU,
                                      const std::string &FS)
-  : sdram(false),
+  : BlackfinGenSubtargetInfo(), sdram(false),
     icplb(false),
     wa_mi_shift(false),
     wa_csync(false),
diff --git a/lib/Target/Blackfin/BlackfinSubtarget.h b/lib/Target/Blackfin/BlackfinSubtarget.h
index a1a09ec4ec..fecd035dcd 100644
--- a/lib/Target/Blackfin/BlackfinSubtarget.h
+++ b/lib/Target/Blackfin/BlackfinSubtarget.h
@@ -17,9 +17,12 @@
 #include "llvm/Target/TargetSubtarget.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "BlackfinGenSubtarget.inc"
+
 namespace llvm {
 
-  class BlackfinSubtarget : public TargetSubtarget {
+  class BlackfinSubtarget : public BlackfinGenSubtargetInfo {
     bool sdram;
     bool icplb;
     bool wa_mi_shift;
diff --git a/lib/Target/CellSPU/SPUSubtarget.cpp b/lib/Target/CellSPU/SPUSubtarget.cpp
index a1a9f51b73..512876781a 100644
--- a/lib/Target/CellSPU/SPUSubtarget.cpp
+++ b/lib/Target/CellSPU/SPUSubtarget.cpp
@@ -13,14 +13,19 @@
 
 #include "SPUSubtarget.h"
 #include "SPU.h"
-#include "SPUGenSubtarget.inc"
 #include "llvm/ADT/SmallVector.h"
 #include "SPURegisterInfo.h"
 
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "SPUGenSubtarget.inc"
+
 using namespace llvm;
 
 SPUSubtarget::SPUSubtarget(const std::string &TT, const std::string &CPU,
                            const std::string &FS) :
+  SPUGenSubtargetInfo(),
   StackAlignment(16),
   ProcDirective(SPU::DEFAULT_PROC),
   UseLargeMem(false)
@@ -31,6 +36,9 @@ SPUSubtarget::SPUSubtarget(const std::string &TT, const std::string &CPU,
 
   // Parse features string.
   ParseSubtargetFeatures(FS, default_cpu);
+
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(default_cpu);
 }
 
 /// SetJITMode - This is called to inform the subtarget info that we are
diff --git a/lib/Target/CellSPU/SPUSubtarget.h b/lib/Target/CellSPU/SPUSubtarget.h
index 69a60db2b9..2e5934bc27 100644
--- a/lib/Target/CellSPU/SPUSubtarget.h
+++ b/lib/Target/CellSPU/SPUSubtarget.h
@@ -18,6 +18,9 @@
 #include "llvm/MC/MCInstrItineraries.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "SPUGenSubtarget.inc"
+
 namespace llvm {
   class GlobalValue;
 
@@ -28,7 +31,7 @@ namespace llvm {
     };
   }
     
-  class SPUSubtarget : public TargetSubtarget {
+  class SPUSubtarget : public SPUGenSubtargetInfo {
   protected:
     /// stackAlignment - The minimum alignment known to hold of the stack frame
     /// on entry to the function and which must be maintained by every function.
diff --git a/lib/Target/MBlaze/MBlazeSubtarget.cpp b/lib/Target/MBlaze/MBlazeSubtarget.cpp
index 034b5ce49c..0ba0bea465 100644
--- a/lib/Target/MBlaze/MBlazeSubtarget.cpp
+++ b/lib/Target/MBlaze/MBlazeSubtarget.cpp
@@ -14,13 +14,19 @@
 #include "MBlazeSubtarget.h"
 #include "MBlaze.h"
 #include "MBlazeRegisterInfo.h"
-#include "MBlazeGenSubtarget.inc"
 #include "llvm/Support/CommandLine.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "MBlazeGenSubtarget.inc"
+
 using namespace llvm;
 
 MBlazeSubtarget::MBlazeSubtarget(const std::string &TT,
                                  const std::string &CPU,
                                  const std::string &FS):
+  MBlazeGenSubtargetInfo(),
   HasBarrel(false), HasDiv(false), HasMul(false), HasPatCmp(false),
   HasFPU(false), HasMul64(false), HasSqrt(false)
 {
@@ -35,6 +41,9 @@ MBlazeSubtarget::MBlazeSubtarget(const std::string &TT,
   HasItin = CPUName != "mblaze";
   DEBUG(dbgs() << "CPU " << CPUName << "(" << HasItin << ")\n");
 
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(CPUName);
+
   // Compute the issue width of the MBlaze itineraries
   computeIssueWidth();
 }
diff --git a/lib/Target/MBlaze/MBlazeSubtarget.h b/lib/Target/MBlaze/MBlazeSubtarget.h
index f5e0b4ce9b..63acee2e7b 100644
--- a/lib/Target/MBlaze/MBlazeSubtarget.h
+++ b/lib/Target/MBlaze/MBlazeSubtarget.h
@@ -18,9 +18,12 @@
 #include "llvm/MC/MCInstrItineraries.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "MBlazeGenSubtarget.inc"
+
 namespace llvm {
 
-class MBlazeSubtarget : public TargetSubtarget {
+class MBlazeSubtarget : public MBlazeGenSubtargetInfo {
 
 protected:
   bool HasBarrel;
diff --git a/lib/Target/MSP430/MSP430Subtarget.cpp b/lib/Target/MSP430/MSP430Subtarget.cpp
index a257abe66d..4198d20a70 100644
--- a/lib/Target/MSP430/MSP430Subtarget.cpp
+++ b/lib/Target/MSP430/MSP430Subtarget.cpp
@@ -13,6 +13,10 @@
 
 #include "MSP430Subtarget.h"
 #include "MSP430.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
 #include "MSP430GenSubtarget.inc"
 
 using namespace llvm;
diff --git a/lib/Target/MSP430/MSP430Subtarget.h b/lib/Target/MSP430/MSP430Subtarget.h
index f36428a0e7..0a508e09d9 100644
--- a/lib/Target/MSP430/MSP430Subtarget.h
+++ b/lib/Target/MSP430/MSP430Subtarget.h
@@ -16,11 +16,14 @@
 
 #include "llvm/Target/TargetSubtarget.h"
 
+#define GET_SUBTARGETINFO_HEADER
+#include "MSP430GenSubtarget.inc"
+
 #include <string>
 
 namespace llvm {
 
-class MSP430Subtarget : public TargetSubtarget {
+class MSP430Subtarget : public MSP430GenSubtargetInfo {
   bool ExtendedInsts;
 public:
   /// This constructor initializes the data members to match that
diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index 306ea11892..9c69e0459d 100644
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -13,11 +13,17 @@
 
 #include "MipsSubtarget.h"
 #include "Mips.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
 #include "MipsGenSubtarget.inc"
+
 using namespace llvm;
 
 MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
                              const std::string &FS, bool little) :
+  MipsGenSubtargetInfo(),
   MipsArchVersion(Mips1), MipsABI(O32), IsLittle(little), IsSingleFloat(false),
   IsFP64bit(false), IsGP64bit(false), HasVFPU(false), IsLinux(true),
   HasSEInReg(false), HasCondMov(false), HasMulDivAdd(false), HasMinMax(false),
@@ -31,6 +37,9 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
   // Parse features string.
   ParseSubtargetFeatures(FS, CPUName);
 
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(CPUName);
+
   // Is the target system Linux ?
   if (TT.find("linux") == std::string::npos)
     IsLinux = false;
diff --git a/lib/Target/Mips/MipsSubtarget.h b/lib/Target/Mips/MipsSubtarget.h
index 8acbf5bee9..2b7d98f5c5 100644
--- a/lib/Target/Mips/MipsSubtarget.h
+++ b/lib/Target/Mips/MipsSubtarget.h
@@ -18,9 +18,12 @@
 #include "llvm/MC/MCInstrItineraries.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "MipsGenSubtarget.inc"
+
 namespace llvm {
 
-class MipsSubtarget : public TargetSubtarget {
+class MipsSubtarget : public MipsGenSubtargetInfo {
 
 public:
   enum MipsABIEnum {
diff --git a/lib/Target/PTX/PTXSubtarget.cpp b/lib/Target/PTX/PTXSubtarget.cpp
index f8941b6bab..b3c8eb6ac9 100644
--- a/lib/Target/PTX/PTXSubtarget.cpp
+++ b/lib/Target/PTX/PTXSubtarget.cpp
@@ -14,11 +14,17 @@
 #include "PTXSubtarget.h"
 #include "llvm/Support/ErrorHandling.h"
 
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "PTXGenSubtarget.inc"
+
 using namespace llvm;
 
 PTXSubtarget::PTXSubtarget(const std::string &TT, const std::string &CPU,
                            const std::string &FS, bool is64Bit)
-  : PTXTarget(PTX_COMPUTE_1_0),
+  : PTXGenSubtargetInfo(),
+    PTXTarget(PTX_COMPUTE_1_0),
     PTXVersion(PTX_VERSION_2_0),
     SupportsDouble(false),
     SupportsFMA(true),
diff --git a/lib/Target/PTX/PTXSubtarget.h b/lib/Target/PTX/PTXSubtarget.h
index 6d0337791b..b7b27d6d53 100644
--- a/lib/Target/PTX/PTXSubtarget.h
+++ b/lib/Target/PTX/PTXSubtarget.h
@@ -16,8 +16,11 @@
 
 #include "llvm/Target/TargetSubtarget.h"
 
+#define GET_SUBTARGETINFO_HEADER
+#include "PTXGenSubtarget.inc"
+
 namespace llvm {
-  class PTXSubtarget : public TargetSubtarget {
+  class PTXSubtarget : public PTXGenSubtargetInfo {
     public:
 
       /**
diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index bcc4c218c2..ef8386c445 100644
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -15,8 +15,13 @@
 #include "PPC.h"
 #include "llvm/GlobalValue.h"
 #include "llvm/Target/TargetMachine.h"
-#include "PPCGenSubtarget.inc"
 #include <cstdlib>
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "PPCGenSubtarget.inc"
+
 using namespace llvm;
 
 #if defined(__APPLE__)
@@ -59,7 +64,8 @@ static const char *GetCurrentPowerPCCPU() {
 
 PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &CPU,
                            const std::string &FS, bool is64Bit)
-  : StackAlignment(16)
+  : PPCGenSubtargetInfo()
+  , StackAlignment(16)
   , DarwinDirective(PPC::DIR_NONE)
   , IsGigaProcessor(false)
   , Has64BitSupport(false)
@@ -84,6 +90,9 @@ PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &CPU,
   // Parse features string.
   ParseSubtargetFeatures(FS, CPUName);
 
+  // Initialize scheduling itinerary for the specified CPU.
+  InstrItins = getInstrItineraryForCPU(CPUName);
+
   // If we are generating code for ppc64, verify that options make sense.
   if (is64Bit) {
     Has64BitSupport = true;
diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index 55c3fef015..b4e5758456 100644
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -19,6 +19,9 @@
 #include "llvm/ADT/Triple.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "PPCGenSubtarget.inc"
+
 // GCC #defines PPC on Linux but we use it as our namespace name
 #undef PPC
 
@@ -42,7 +45,7 @@ namespace PPC {
 class GlobalValue;
 class TargetMachine;
   
-class PPCSubtarget : public TargetSubtarget {
+class PPCSubtarget : public PPCGenSubtargetInfo {
 protected:
   /// stackAlignment - The minimum alignment known to hold of the stack frame on
   /// entry to the function and which must be maintained by every function.
diff --git a/lib/Target/Sparc/SparcSubtarget.cpp b/lib/Target/Sparc/SparcSubtarget.cpp
index 06bfc64ab8..3f7b23ad95 100644
--- a/lib/Target/Sparc/SparcSubtarget.cpp
+++ b/lib/Target/Sparc/SparcSubtarget.cpp
@@ -12,11 +12,17 @@
 //===----------------------------------------------------------------------===//
 
 #include "SparcSubtarget.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
 #include "SparcGenSubtarget.inc"
+
 using namespace llvm;
 
 SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &CPU,
                                const std::string &FS,  bool is64Bit) :
+  SparcGenSubtargetInfo(),
   IsV9(false),
   V8DeprecatedInsts(false),
   IsVIS(false),
diff --git a/lib/Target/Sparc/SparcSubtarget.h b/lib/Target/Sparc/SparcSubtarget.h
index eabf390d37..af35e4c5fd 100644
--- a/lib/Target/Sparc/SparcSubtarget.h
+++ b/lib/Target/Sparc/SparcSubtarget.h
@@ -17,9 +17,12 @@
 #include "llvm/Target/TargetSubtarget.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "SparcGenSubtarget.inc"
+
 namespace llvm {
 
-class SparcSubtarget : public TargetSubtarget {
+class SparcSubtarget : public SparcGenSubtargetInfo {
   bool IsV9;
   bool V8DeprecatedInsts;
   bool IsVIS;
diff --git a/lib/Target/SystemZ/SystemZSubtarget.cpp b/lib/Target/SystemZ/SystemZSubtarget.cpp
index 95521b2841..33c990613a 100644
--- a/lib/Target/SystemZ/SystemZSubtarget.cpp
+++ b/lib/Target/SystemZ/SystemZSubtarget.cpp
@@ -13,16 +13,20 @@
 
 #include "SystemZSubtarget.h"
 #include "SystemZ.h"
-#include "SystemZGenSubtarget.inc"
 #include "llvm/GlobalValue.h"
 #include "llvm/Target/TargetMachine.h"
 
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "SystemZGenSubtarget.inc"
+
 using namespace llvm;
 
 SystemZSubtarget::SystemZSubtarget(const std::string &TT, 
                                    const std::string &CPU,
                                    const std::string &FS):
-  HasZ10Insts(false) {
+  SystemZGenSubtargetInfo(), HasZ10Insts(false) {
   std::string CPUName = CPU;
   if (CPUName.empty())
     CPUName = "z9";
diff --git a/lib/Target/SystemZ/SystemZSubtarget.h b/lib/Target/SystemZ/SystemZSubtarget.h
index 453471c691..a08f2dab0d 100644
--- a/lib/Target/SystemZ/SystemZSubtarget.h
+++ b/lib/Target/SystemZ/SystemZSubtarget.h
@@ -15,14 +15,16 @@
 #define LLVM_TARGET_SystemZ_SUBTARGET_H
 
 #include "llvm/Target/TargetSubtarget.h"
-
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "SystemZGenSubtarget.inc"
+
 namespace llvm {
 class GlobalValue;
 class TargetMachine;
 
-class SystemZSubtarget : public TargetSubtarget {
+class SystemZSubtarget : public SystemZGenSubtargetInfo {
   bool HasZ10Insts;
 public:
   /// This constructor initializes the data members to match that
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index d7f630ce88..5c653f6c42 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -14,13 +14,18 @@
 #define DEBUG_TYPE "subtarget"
 #include "X86Subtarget.h"
 #include "X86InstrInfo.h"
-#include "X86GenSubtarget.inc"
 #include "llvm/GlobalValue.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/ADT/SmallVector.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "X86GenSubtarget.inc"
+
 using namespace llvm;
 
 #if defined(_MSC_VER)
@@ -287,7 +292,8 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
 X86Subtarget::X86Subtarget(const std::string &TT, const std::string &CPU,
                            const std::string &FS, 
                            bool is64Bit, unsigned StackAlignOverride)
-  : PICStyle(PICStyles::None)
+  : X86GenSubtargetInfo()
+  , PICStyle(PICStyles::None)
   , X86SSELevel(NoMMXSSE)
   , X863DNowLevel(NoThreeDNow)
   , HasCMov(false)
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index 80a4103cce..cafc082bd7 100644
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -19,6 +19,9 @@
 #include "llvm/CallingConv.h"
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "X86GenSubtarget.inc"
+
 namespace llvm {
 class GlobalValue;
 class TargetMachine;
@@ -35,7 +38,7 @@ enum Style {
 };
 }
 
-class X86Subtarget : public TargetSubtarget {
+class X86Subtarget : public X86GenSubtargetInfo {
 protected:
   enum X86SSEEnum {
     NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42
diff --git a/lib/Target/XCore/XCoreSubtarget.cpp b/lib/Target/XCore/XCoreSubtarget.cpp
index 0447d2eead..ef13520b67 100644
--- a/lib/Target/XCore/XCoreSubtarget.cpp
+++ b/lib/Target/XCore/XCoreSubtarget.cpp
@@ -13,9 +13,16 @@
 
 #include "XCoreSubtarget.h"
 #include "XCore.h"
+
+#define GET_SUBTARGETINFO_CTOR
+#define GET_SUBTARGETINFO_MC_DESC
+#define GET_SUBTARGETINFO_TARGET_DESC
+#include "XCoreGenSubtarget.inc"
+
 using namespace llvm;
 
 XCoreSubtarget::XCoreSubtarget(const std::string &TT,
                                const std::string &CPU, const std::string &FS)
+  : XCoreGenSubtargetInfo()
 {
 }
diff --git a/lib/Target/XCore/XCoreSubtarget.h b/lib/Target/XCore/XCoreSubtarget.h
index ee40d36d31..182e5c4861 100644
--- a/lib/Target/XCore/XCoreSubtarget.h
+++ b/lib/Target/XCore/XCoreSubtarget.h
@@ -16,12 +16,14 @@
 
 #include "llvm/Target/TargetSubtarget.h"
 #include "llvm/Target/TargetMachine.h"
-
 #include <string>
 
+#define GET_SUBTARGETINFO_HEADER
+#include "XCoreGenSubtarget.inc"
+
 namespace llvm {
 
-class XCoreSubtarget : public TargetSubtarget {
+class XCoreSubtarget : public XCoreGenSubtargetInfo {
 
 public:
   /// This constructor initializes the data members to match that