mirror of
https://github.com/c64scene-ar/llvm-6502.git
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d04a8d4b33
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
//===-- MCSubtargetInfo.cpp - Subtarget Information -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/MC/MCInstrItineraries.h"
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#include "llvm/MC/SubtargetFeature.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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using namespace llvm;
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MCSchedModel MCSchedModel::DefaultSchedModel; // For unknown processors.
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/// InitMCProcessorInfo - Set or change the CPU (optionally supplemented
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/// with feature string). Recompute feature bits and scheduling model.
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void
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MCSubtargetInfo::InitMCProcessorInfo(StringRef CPU, StringRef FS) {
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SubtargetFeatures Features(FS);
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FeatureBits = Features.getFeatureBits(CPU, ProcDesc, NumProcs,
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ProcFeatures, NumFeatures);
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if (!CPU.empty())
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CPUSchedModel = getSchedModelForCPU(CPU);
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else
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CPUSchedModel = &MCSchedModel::DefaultSchedModel;
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}
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void
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MCSubtargetInfo::InitMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS,
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const SubtargetFeatureKV *PF,
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const SubtargetFeatureKV *PD,
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const SubtargetInfoKV *ProcSched,
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const MCWriteProcResEntry *WPR,
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const MCWriteLatencyEntry *WL,
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const MCReadAdvanceEntry *RA,
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const InstrStage *IS,
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const unsigned *OC,
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const unsigned *FP,
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unsigned NF, unsigned NP) {
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TargetTriple = TT;
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ProcFeatures = PF;
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ProcDesc = PD;
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ProcSchedModels = ProcSched;
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WriteProcResTable = WPR;
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WriteLatencyTable = WL;
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ReadAdvanceTable = RA;
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Stages = IS;
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OperandCycles = OC;
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ForwardingPaths = FP;
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NumFeatures = NF;
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NumProcs = NP;
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InitMCProcessorInfo(CPU, FS);
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}
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/// ToggleFeature - Toggle a feature and returns the re-computed feature
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/// bits. This version does not change the implied bits.
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uint64_t MCSubtargetInfo::ToggleFeature(uint64_t FB) {
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FeatureBits ^= FB;
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return FeatureBits;
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}
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/// ToggleFeature - Toggle a feature and returns the re-computed feature
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/// bits. This version will also change all implied bits.
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uint64_t MCSubtargetInfo::ToggleFeature(StringRef FS) {
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SubtargetFeatures Features;
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FeatureBits = Features.ToggleFeature(FeatureBits, FS,
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ProcFeatures, NumFeatures);
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return FeatureBits;
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}
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const MCSchedModel *
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MCSubtargetInfo::getSchedModelForCPU(StringRef CPU) const {
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assert(ProcSchedModels && "Processor machine model not available!");
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#ifndef NDEBUG
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for (size_t i = 1; i < NumProcs; i++) {
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assert(strcmp(ProcSchedModels[i - 1].Key, ProcSchedModels[i].Key) < 0 &&
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"Processor machine model table is not sorted");
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}
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#endif
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// Find entry
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SubtargetInfoKV KV;
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KV.Key = CPU.data();
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const SubtargetInfoKV *Found =
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std::lower_bound(ProcSchedModels, ProcSchedModels+NumProcs, KV);
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if (Found == ProcSchedModels+NumProcs || StringRef(Found->Key) != CPU) {
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errs() << "'" << CPU
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<< "' is not a recognized processor for this target"
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<< " (ignoring processor)\n";
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return &MCSchedModel::DefaultSchedModel;
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}
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assert(Found->Value && "Missing processor SchedModel value");
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return (const MCSchedModel *)Found->Value;
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}
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InstrItineraryData
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MCSubtargetInfo::getInstrItineraryForCPU(StringRef CPU) const {
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const MCSchedModel *SchedModel = getSchedModelForCPU(CPU);
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return InstrItineraryData(SchedModel, Stages, OperandCycles, ForwardingPaths);
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}
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/// Initialize an InstrItineraryData instance.
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void MCSubtargetInfo::initInstrItins(InstrItineraryData &InstrItins) const {
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InstrItins =
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InstrItineraryData(CPUSchedModel, Stages, OperandCycles, ForwardingPaths);
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}
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