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Add getFeatureBits to extract feature bits for a given CPU.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134298 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-07-02 00:43:44 +00:00
parent 4d59ff95d8
commit 2416b89621
2 changed files with 12 additions and 0 deletions
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8
lib/MC/MCSubtargetInfo.cpp
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@@ -42,3 +42,11 @@ MCSubtargetInfo::getInstrItineraryForCPU(StringRef CPU) const {
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);
}