Replaced ReInitMCSubtargetInfo with InitMCProcessor.

Now where we used to call ReInitMCSubtargetInfo, we actually recompute
the same information as InitMCSubtargetInfo instead of only setting
the feature bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164105 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/MC/MCSubtargetInfo.h b/include/llvm/MC/MCSubtargetInfo.h
index d5e15d4842f42db181925a1f4f34f2fd9387adc5..451f435fe399199bac4099c749f7d1ed3c972778 100644 (file)
--- a/include/llvm/MC/MCSubtargetInfo.h
+++ b/include/llvm/MC/MCSubtargetInfo.h
@@ -68,9 +68,9 @@ public:
     return FeatureBits;
   }
 
-  /// ReInitMCSubtargetInfo - Change CPU (and optionally supplemented with
-  /// feature string), recompute and return feature bits.
-  uint64_t ReInitMCSubtargetInfo(StringRef CPU, StringRef FS);
+  /// InitMCProcessorInfo - Set or change the CPU (optionally supplemented with
+  /// feature string). Recompute feature bits and scheduling model.
+  void InitMCProcessorInfo(StringRef CPU, StringRef FS);
 
   /// ToggleFeature - Toggle a feature and returns the re-computed feature
   /// bits. This version does not change the implied bits.

diff --git a/lib/MC/MCSubtargetInfo.cpp b/lib/MC/MCSubtargetInfo.cpp
index ae2e8a1d6c944f73dbcfd6e96f2b7a2609989f8e..8be07eed82fbdad59e3c074381749cfe938d6443 100644 (file)
--- a/lib/MC/MCSubtargetInfo.cpp
+++ b/lib/MC/MCSubtargetInfo.cpp
@@ -19,6 +19,20 @@ using namespace llvm;
 
 MCSchedModel MCSchedModel::DefaultSchedModel; // For unknown processors.
 
+/// ReInitMCSubtargetInfo - Set or change 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,
@@ -45,20 +59,7 @@ MCSubtargetInfo::InitMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS,
   NumFeatures = NF;
   NumProcs = NP;
 
-  SubtargetFeatures Features(FS);
-  FeatureBits = Features.getFeatureBits(CPU, ProcDesc, NumProcs,
-                                        ProcFeatures, NumFeatures);
-
-  CPUSchedModel = getSchedModelForCPU(CPU);
-}
-
-/// 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;
+  InitMCProcessorInfo(CPU, FS);
 }
 
 /// ToggleFeature - Toggle a feature and returns the re-computed feature

diff --git a/utils/TableGen/SubtargetEmitter.cpp b/utils/TableGen/SubtargetEmitter.cpp
index 0717a7fad0fdf0e80b4163a20c1b668e70797e02..b78d93e2706d1b41fee3d234cd11133916f3ecc1 100644 (file)
--- a/utils/TableGen/SubtargetEmitter.cpp
+++ b/utils/TableGen/SubtargetEmitter.cpp
@@ -1213,7 +1213,8 @@ void SubtargetEmitter::ParseFeaturesFunction(raw_ostream &OS,
     return;
   }
 
-  OS << "  uint64_t Bits = ReInitMCSubtargetInfo(CPU, FS);\n";
+  OS << "  InitMCProcessorInfo(CPU, FS);\n"
+     << "  uint64_t Bits = getFeatureBits();\n";
 
   for (unsigned i = 0; i < Features.size(); i++) {
     // Next record