Revert r164061-r164067. Most of the new subtarget emitter.

I have to work out the Target/CodeGen header dependencies
before putting this back.

llvm-svn: 164072

1 files changed, 14 insertions, 23 deletions

diff --git a/llvm/lib/MC/MCSubtargetInfo.cpp b/llvm/lib/MC/MCSubtargetInfo.cpp
index 3eae8cef1e1..47735a492de 100644
--- a/llvm/lib/MC/MCSubtargetInfo.cpp
+++ b/llvm/lib/MC/MCSubtargetInfo.cpp
@@ -19,28 +19,11 @@ using namespace llvm;
 
 MCSchedModel MCSchedModel::DefaultSchedModel; // For unknown processors.
 
-/// ReInitMCSubtargetInfo - Set or chaing the CPU (optionally supplemented
-/// with feature string). Recompute feature bits and scheduling model.
-void
-MCSubtargetInfo::InitMCProcessorInfo(StringRef CPU, StringRef FS) {
-  SubtargetFeatures Features(FS);
-  FeatureBits = Features.getFeatureBits(CPU, ProcDesc, NumProcs,
-                                        ProcFeatures, NumFeatures);
-
-  if (!CPU.empty())
-    CPUSchedModel = getSchedModelForCPU(CPU);
-  else
-    CPUSchedModel = &MCSchedModel::DefaultSchedModel;
-}
-
 void
 MCSubtargetInfo::InitMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS,
                                      const SubtargetFeatureKV *PF,
                                      const SubtargetFeatureKV *PD,
                                      const SubtargetInfoKV *ProcSched,
-                                     const MCWriteProcResEntry *WPR,
-                                     const MCWriteLatencyEntry *WL,
-                                     const MCReadAdvanceEntry *RA,
                                      const InstrStage *IS,
                                      const unsigned *OC,
                                      const unsigned *FP,
@@ -49,17 +32,25 @@ MCSubtargetInfo::InitMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS,
   ProcFeatures = PF;
   ProcDesc = PD;
   ProcSchedModels = ProcSched;
-  WriteProcResTable = WPR;
-  WriteLatencyTable = WL;
-  ReadAdvanceTable = RA;
-
   Stages = IS;
   OperandCycles = OC;
   ForwardingPaths = FP;
   NumFeatures = NF;
   NumProcs = NP;
 
-  InitMCProcessorInfo(CPU, FS);
+  SubtargetFeatures Features(FS);
+  FeatureBits = Features.getFeatureBits(CPU, ProcDesc, NumProcs,
+                                        ProcFeatures, NumFeatures);
+}
+
+
+/// ReInitMCSubtargetInfo - Change CPU (and optionally supplemented with
+/// feature string) and recompute feature bits.
+uint64_t MCSubtargetInfo::ReInitMCSubtargetInfo(StringRef CPU, StringRef FS) {
+  SubtargetFeatures Features(FS);
+  FeatureBits = Features.getFeatureBits(CPU, ProcDesc, NumProcs,
+                                        ProcFeatures, NumFeatures);
+  return FeatureBits;
 }
 
 /// ToggleFeature - Toggle a feature and returns the re-computed feature
@@ -114,5 +105,5 @@ MCSubtargetInfo::getInstrItineraryForCPU(StringRef CPU) const {
 /// Initialize an InstrItineraryData instance.
 void MCSubtargetInfo::initInstrItins(InstrItineraryData &InstrItins) const {
   InstrItins =
-    InstrItineraryData(CPUSchedModel, Stages, OperandCycles, ForwardingPaths);
+    InstrItineraryData(0, Stages, OperandCycles, ForwardingPaths);
 }