Compute feature bits at time of MCSubtargetInfo initialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134606 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCSubtargetInfo.cpp b/lib/MC/MCSubtargetInfo.cpp
index 1874bf0..3bb20b0 100644
--- a/lib/MC/MCSubtargetInfo.cpp
+++ b/lib/MC/MCSubtargetInfo.cpp
@@ -16,6 +16,38 @@
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) {
+ ProcFeatures = PF;
+ ProcDesc = PD;
+ ProcItins = PI;
+ Stages = IS;
+ OperandCycles = OC;
+ ForwardingPathes = FP;
+ NumFeatures = NF;
+ NumProcs = NP;
+
+ 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;
+}
+
InstrItineraryData
MCSubtargetInfo::getInstrItineraryForCPU(StringRef CPU) const {
assert(ProcItins && "Instruction itineraries information not available!");
@@ -42,11 +74,3 @@
return InstrItineraryData(Stages, OperandCycles, ForwardingPathes,
(InstrItinerary *)Found->Value);
}
-
-/// getFeatureBits - Get the feature bits for a CPU (optionally supplemented
-/// with feature string).
-uint64_t MCSubtargetInfo::getFeatureBits(StringRef CPU, StringRef FS) const {
- SubtargetFeatures Features(FS);
- return Features.getFeatureBits(CPU, ProcDesc, NumProcs,
- ProcFeatures, NumFeatures);
-}