- 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

2 files changed, 13 insertions, 2 deletions

diff --git a/lib/Target/CellSPU/SPUSubtarget.cpp b/lib/Target/CellSPU/SPUSubtarget.cpp
index a1a9f51..5128767 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 69a60db..2e5934b 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.