Fix comments.

[oota-llvm.git] / lib / MC / MCSubtargetInfo.cpp

diff --git a/lib/MC/MCSubtargetInfo.cpp b/lib/MC/MCSubtargetInfo.cpp
index 3bb20b07f31d1a13bcdb7a2c6cc701026637d190..86dc1083cee967e09c46b3aaa652da57b2016454 100644 (file)
--- a/lib/MC/MCSubtargetInfo.cpp
+++ b/lib/MC/MCSubtargetInfo.cpp
@@ -11,19 +11,22 @@
 #include "llvm/MC/MCInstrItineraries.h"
 #include "llvm/MC/SubtargetFeature.h"
 #include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Triple.h"
 #include "llvm/Support/raw_ostream.h"
 #include <algorithm>
 
 using namespace llvm;
 
-void MCSubtargetInfo::InitMCSubtargetInfo(StringRef CPU, StringRef FS,
-                                          const SubtargetFeatureKV *PF,
-                                          const SubtargetFeatureKV *PD,
-                                          const SubtargetInfoKV *PI,
-                                          const InstrStage *IS,
-                                          const unsigned *OC,
-                                          const unsigned *FP,
-                                          unsigned NF, unsigned NP) {
+void
+MCSubtargetInfo::InitMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS,
+                                     const SubtargetFeatureKV *PF,
+                                     const SubtargetFeatureKV *PD,
+                                     const SubtargetInfoKV *PI,
+                                     const InstrStage *IS,
+                                     const unsigned *OC,
+                                     const unsigned *FP,
+                                     unsigned NF, unsigned NP) {
+  TargetTriple = TT;
   ProcFeatures = PF;
   ProcDesc = PD;
   ProcItins = PI;
@@ -48,6 +51,23 @@ uint64_t MCSubtargetInfo::ReInitMCSubtargetInfo(StringRef CPU, StringRef FS) {
   return FeatureBits;
 }
 
+/// ToggleFeature - Toggle a feature and returns the re-computed feature
+/// bits. This version does not change the implied bits.
+uint64_t MCSubtargetInfo::ToggleFeature(uint64_t FB) {
+  FeatureBits ^= FB;
+  return FeatureBits;
+}
+
+/// ToggleFeature - Toggle a feature and returns the re-computed feature
+/// bits. This version will also change all implied bits.
+uint64_t MCSubtargetInfo::ToggleFeature(StringRef FS) {
+  SubtargetFeatures Features;
+  FeatureBits = Features.ToggleFeature(FeatureBits, FS,
+                                       ProcFeatures, NumFeatures);
+  return FeatureBits;
+}
+
+
 InstrItineraryData
 MCSubtargetInfo::getInstrItineraryForCPU(StringRef CPU) const {
   assert(ProcItins && "Instruction itineraries information not available!");