//===----------------------------------------------------------------------===//
#include "llvm/Target/TargetMachine.h"
-#include "llvm/GlobalAlias.h"
-#include "llvm/GlobalValue.h"
-#include "llvm/GlobalVariable.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/SectionKind.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
using namespace llvm;
//---------------------------------------------------------------------------
MCRelaxAll(false),
MCNoExecStack(false),
MCSaveTempLabels(false),
- MCUseLoc(true),
MCUseCFI(true),
MCUseDwarfDirectory(false),
+ RequireStructuredCFG(false),
Options(Options) {
}
delete AsmInfo;
}
+/// \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"); \
+ } 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
/// choices are static, PIC, and dynamic-no-pic, and target default.
Reloc::Model TargetMachine::getRelocationModel() 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);
+ GV = GA->getAliasedGlobal();
const GlobalVariable *Var = cast<GlobalVariable>(GV);
bool isLocal = Var->hasLocalLinkage();
return CodeGenInfo->getOptLevel();
}
+void TargetMachine::setOptLevel(CodeGenOpt::Level Level) const {
+ if (CodeGenInfo)
+ CodeGenInfo->setOptLevel(Level);
+}
+
bool TargetMachine::getAsmVerbosityDefault() {
return AsmVerbosityDefault;
}
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 =
+ getTargetLowering()->getObjFileLowering();
+ const MCSection *TheSection = TLOF.SectionForGlobal(GV, GVKind, Mang, *this);
+ bool CannotUsePrivateLabel = TLOF.isSectionAtomizableBySymbols(*TheSection);
+ Mang.getNameWithPrefix(Name, GV, CannotUsePrivateLabel);
+}
+
+MCSymbol *TargetMachine::getSymbol(const GlobalValue *GV, Mangler &Mang) const {
+ SmallString<60> NameStr;
+ getNameWithPrefix(NameStr, GV, Mang);
+ const TargetLoweringObjectFile &TLOF =
+ getTargetLowering()->getObjFileLowering();
+ return TLOF.getContext().GetOrCreateSymbol(NameStr.str());
+}