//===----------------------------------------------------------------------===//
#include "llvm/Target/TargetMachine.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
+#include "llvm/IR/Mangler.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeGenInfo.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/MC/MCTargetOptions.h"
+#include "llvm/MC/SectionKind.h"
+#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
-//---------------------------------------------------------------------------
-// Command-line options that tend to be useful on more than one back-end.
-//
-
-namespace llvm {
- bool HasDivModLibcall;
- bool AsmVerbosityDefault(false);
-}
-
-static cl::opt<bool>
-DataSections("fdata-sections",
- cl::desc("Emit data into separate sections"),
- cl::init(false));
-static cl::opt<bool>
-FunctionSections("ffunction-sections",
- cl::desc("Emit functions into separate sections"),
- cl::init(false));
-
//---------------------------------------------------------------------------
// TargetMachine Class
//
-TargetMachine::TargetMachine(const Target &T,
- StringRef TT, StringRef CPU, StringRef FS,
+TargetMachine::TargetMachine(const Target &T, StringRef DataLayoutString,
+ const Triple &TT, StringRef CPU, StringRef FS,
const TargetOptions &Options)
- : TheTarget(T), TargetTriple(TT), TargetCPU(CPU), TargetFS(FS),
- CodeGenInfo(0), AsmInfo(0),
- MCRelaxAll(false),
- MCNoExecStack(false),
- MCSaveTempLabels(false),
- MCUseLoc(true),
- MCUseCFI(true),
- MCUseDwarfDirectory(false),
- Options(Options) {
-}
+ : TheTarget(T), DL(DataLayoutString), TargetTriple(TT), TargetCPU(CPU),
+ TargetFS(FS), CodeGenInfo(nullptr), AsmInfo(nullptr), MRI(nullptr),
+ MII(nullptr), STI(nullptr), RequireStructuredCFG(false),
+ Options(Options) {}
TargetMachine::~TargetMachine() {
delete CodeGenInfo;
delete AsmInfo;
+ delete MRI;
+ delete MII;
+ delete STI;
}
/// \brief Reset the target options based on the function's attributes.
-void TargetMachine::resetTargetOptions(const MachineFunction *MF) const {
- const Function *F = MF->getFunction();
- TargetOptions &TO = MF->getTarget().Options;
-
-#define RESET_OPTION(X, Y) \
- do { \
- if (F->hasFnAttribute(Y)) \
- TO.X = \
- (F->getAttributes(). \
- getAttribute(AttributeSet::FunctionIndex, \
- Y).getValueAsString() == "true"); \
+// FIXME: This function needs to go away for a number of reasons:
+// a) global state on the TargetMachine is terrible in general,
+// b) there's no default state here to keep,
+// c) these target options should be passed only on the function
+// and not on the TargetMachine (via TargetOptions) at all.
+void TargetMachine::resetTargetOptions(const Function &F) const {
+#define RESET_OPTION(X, Y) \
+ do { \
+ if (F.hasFnAttribute(Y)) \
+ Options.X = (F.getFnAttribute(Y).getValueAsString() == "true"); \
} while (0)
- RESET_OPTION(NoFramePointerElim, "no-frame-pointer-elim");
RESET_OPTION(LessPreciseFPMADOption, "less-precise-fpmad");
RESET_OPTION(UnsafeFPMath, "unsafe-fp-math");
RESET_OPTION(NoInfsFPMath, "no-infs-fp-math");
RESET_OPTION(NoNaNsFPMath, "no-nans-fp-math");
- RESET_OPTION(UseSoftFloat, "use-soft-float");
- RESET_OPTION(DisableTailCalls, "disable-tail-calls");
}
/// getRelocationModel - Returns the code generation relocation model. The
}
/// Get the IR-specified TLS model for Var.
-static TLSModel::Model getSelectedTLSModel(const GlobalVariable *Var) {
- switch (Var->getThreadLocalMode()) {
+static TLSModel::Model getSelectedTLSModel(const GlobalValue *GV) {
+ switch (GV->getThreadLocalMode()) {
case GlobalVariable::NotThreadLocal:
llvm_unreachable("getSelectedTLSModel for non-TLS variable");
break;
}
TLSModel::Model TargetMachine::getTLSModel(const GlobalValue *GV) const {
- // If GV is an alias then use the aliasee for determining
- // thread-localness.
- if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(GV))
- GV = GA->resolveAliasedGlobal(false);
- const GlobalVariable *Var = cast<GlobalVariable>(GV);
-
- bool isLocal = Var->hasLocalLinkage();
- bool isDeclaration = Var->isDeclaration();
+ bool isLocal = GV->hasLocalLinkage();
+ bool isDeclaration = GV->isDeclaration();
bool isPIC = getRelocationModel() == Reloc::PIC_;
bool isPIE = Options.PositionIndependentExecutable;
// FIXME: what should we do for protected and internal visibility?
// For variables, is internal different from hidden?
- bool isHidden = Var->hasHiddenVisibility();
+ bool isHidden = GV->hasHiddenVisibility();
TLSModel::Model Model;
if (isPIC && !isPIE) {
}
// If the user specified a more specific model, use that.
- TLSModel::Model SelectedModel = getSelectedTLSModel(Var);
+ TLSModel::Model SelectedModel = getSelectedTLSModel(GV);
if (SelectedModel > Model)
return SelectedModel;
CodeGenInfo->setOptLevel(Level);
}
-bool TargetMachine::getAsmVerbosityDefault() {
- return AsmVerbosityDefault;
-}
-
-void TargetMachine::setAsmVerbosityDefault(bool V) {
- AsmVerbosityDefault = V;
+TargetIRAnalysis TargetMachine::getTargetIRAnalysis() {
+ return TargetIRAnalysis([this](Function &F) {
+ return TargetTransformInfo(F.getParent()->getDataLayout());
+ });
}
-bool TargetMachine::getFunctionSections() {
- return FunctionSections;
-}
+static bool canUsePrivateLabel(const MCAsmInfo &AsmInfo,
+ const MCSection &Section) {
+ if (!AsmInfo.isSectionAtomizableBySymbols(Section))
+ return true;
-bool TargetMachine::getDataSections() {
- return DataSections;
-}
+ // If it is not dead stripped, it is safe to use private labels.
+ const MCSectionMachO &SMO = cast<MCSectionMachO>(Section);
+ if (SMO.hasAttribute(MachO::S_ATTR_NO_DEAD_STRIP))
+ return true;
-void TargetMachine::setFunctionSections(bool V) {
- FunctionSections = V;
+ return false;
}
-void TargetMachine::setDataSections(bool V) {
- DataSections = V;
+void TargetMachine::getNameWithPrefix(SmallVectorImpl<char> &Name,
+ const GlobalValue *GV, Mangler &Mang,
+ bool MayAlwaysUsePrivate) const {
+ if (MayAlwaysUsePrivate || !GV->hasPrivateLinkage()) {
+ // Simple case: If GV is not private, it is not important to find out if
+ // private labels are legal in this case or not.
+ Mang.getNameWithPrefix(Name, GV, false);
+ return;
+ }
+ SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, *this);
+ const TargetLoweringObjectFile *TLOF = getObjFileLowering();
+ const MCSection *TheSection = TLOF->SectionForGlobal(GV, GVKind, Mang, *this);
+ bool CannotUsePrivateLabel = !canUsePrivateLabel(*AsmInfo, *TheSection);
+ TLOF->getNameWithPrefix(Name, GV, CannotUsePrivateLabel, Mang, *this);
+}
+
+MCSymbol *TargetMachine::getSymbol(const GlobalValue *GV, Mangler &Mang) const {
+ SmallString<128> NameStr;
+ getNameWithPrefix(NameStr, GV, Mang);
+ const TargetLoweringObjectFile *TLOF = getObjFileLowering();
+ return TLOF->getContext().getOrCreateSymbol(NameStr);
}
projects / oota-llvm.git / blobdiff