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eb66b33867
I did this a long time ago with a janky python script, but now clang-format has built-in support for this. I fed clang-format every line with a #include and let it re-sort things according to the precise LLVM rules for include ordering baked into clang-format these days. I've reverted a number of files where the results of sorting includes isn't healthy. Either places where we have legacy code relying on particular include ordering (where possible, I'll fix these separately) or where we have particular formatting around #include lines that I didn't want to disturb in this patch. This patch is *entirely* mechanical. If you get merge conflicts or anything, just ignore the changes in this patch and run clang-format over your #include lines in the files. Sorry for any noise here, but it is important to keep these things stable. I was seeing an increasing number of patches with irrelevant re-ordering of #include lines because clang-format was used. This patch at least isolates that churn, makes it easy to skip when resolving conflicts, and gets us to a clean baseline (again). llvm-svn: 304787
101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
//===-- TargetSubtargetInfo.cpp - General Target 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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//
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/// \file This file describes the general parts of a Subtarget.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Target/TargetSubtargetInfo.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/CodeGen/TargetSchedule.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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//---------------------------------------------------------------------------
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// TargetSubtargetInfo Class
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//
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TargetSubtargetInfo::TargetSubtargetInfo(
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const Triple &TT, StringRef CPU, StringRef FS,
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ArrayRef<SubtargetFeatureKV> PF, ArrayRef<SubtargetFeatureKV> PD,
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const SubtargetInfoKV *ProcSched, const MCWriteProcResEntry *WPR,
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const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA,
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const InstrStage *IS, const unsigned *OC, const unsigned *FP)
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: MCSubtargetInfo(TT, CPU, FS, PF, PD, ProcSched, WPR, WL, RA, IS, OC, FP) {
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}
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TargetSubtargetInfo::~TargetSubtargetInfo() {}
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bool TargetSubtargetInfo::enableAtomicExpand() const {
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return true;
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}
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bool TargetSubtargetInfo::enableMachineScheduler() const {
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return false;
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}
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bool TargetSubtargetInfo::enableJoinGlobalCopies() const {
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return enableMachineScheduler();
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}
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bool TargetSubtargetInfo::enableRALocalReassignment(
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CodeGenOpt::Level OptLevel) const {
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return true;
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}
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bool TargetSubtargetInfo::enablePostRAScheduler() const {
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return getSchedModel().PostRAScheduler;
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}
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bool TargetSubtargetInfo::useAA() const {
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return false;
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}
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static std::string createSchedInfoStr(unsigned Latency,
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Optional<double> RThroughput) {
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static const char *SchedPrefix = " sched: [";
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std::string Comment;
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raw_string_ostream CS(Comment);
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if (Latency > 0 && RThroughput.hasValue())
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CS << SchedPrefix << Latency << format(":%2.2f", RThroughput.getValue())
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<< "]";
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else if (Latency > 0)
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CS << SchedPrefix << Latency << ":?]";
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else if (RThroughput.hasValue())
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CS << SchedPrefix << "?:" << RThroughput.getValue() << "]";
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CS.flush();
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return Comment;
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}
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/// Returns string representation of scheduler comment
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std::string TargetSubtargetInfo::getSchedInfoStr(const MachineInstr &MI) const {
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if (MI.isPseudo() || MI.isTerminator())
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return std::string();
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// We don't cache TSchedModel because it depends on TargetInstrInfo
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// that could be changed during the compilation
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TargetSchedModel TSchedModel;
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TSchedModel.init(getSchedModel(), this, getInstrInfo());
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unsigned Latency = TSchedModel.computeInstrLatency(&MI);
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Optional<double> RThroughput = TSchedModel.computeInstrRThroughput(&MI);
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return createSchedInfoStr(Latency, RThroughput);
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}
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/// Returns string representation of scheduler comment
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std::string TargetSubtargetInfo::getSchedInfoStr(MCInst const &MCI) const {
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// We don't cache TSchedModel because it depends on TargetInstrInfo
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// that could be changed during the compilation
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TargetSchedModel TSchedModel;
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TSchedModel.init(getSchedModel(), this, getInstrInfo());
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if (!TSchedModel.hasInstrSchedModel())
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return std::string();
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unsigned Latency = TSchedModel.computeInstrLatency(MCI.getOpcode());
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Optional<double> RThroughput =
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TSchedModel.computeInstrRThroughput(MCI.getOpcode());
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return createSchedInfoStr(Latency, RThroughput);
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}
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