1 //===-- TargetMachine.cpp - General Target Information ---------------------==//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
29 //---------------------------------------------------------------------------
47   // Remaining logic below is ELF-specific. For other object file formats where  in isLargeGlobalValue()
53   auto *GO = GVal->getAliaseeObject();  in isLargeGlobalValue()
69     if (GO->hasSection()) {  in isLargeGlobalValue()
70       StringRef Name = GO->getSection();  in isLargeGlobalValue()
76   if (GV->isThreadLocal())  in isLargeGlobalValue()
79   // For x86-64, we treat an explicit GlobalVariable small code model to mean  in isLargeGlobalValue()
81   if (auto CM = GV->getCodeModel()) {  in isLargeGlobalValue()
92   if (GV->hasSection()) {  in isLargeGlobalValue()
93     StringRef Name = GV->getSection();  in isLargeGlobalValue()
101     if (!GV->getValueType()->isSized())  in isLargeGlobalValue()
105     if (GV->isDeclaration() && (GV->getName() == "__ehdr_start" ||  in isLargeGlobalValue()
106                                 GV->getName().starts_with("__start_") ||  in isLargeGlobalValue()
107                                 GV->getName().starts_with("__stop_")))  in isLargeGlobalValue()
109     const DataLayout &DL = GV->getDataLayout();  in isLargeGlobalValue()
110     uint64_t Size = DL.getTypeAllocSize(GV->getValueType());  in isLargeGlobalValue()
121 /// Reset the target options based on the function's attributes.
135   RESET_OPTION(UnsafeFPMath, "unsafe-fp-math");  in resetTargetOptions()
136   RESET_OPTION(NoInfsFPMath, "no-infs-fp-math");  in resetTargetOptions()
137   RESET_OPTION(NoNaNsFPMath, "no-nans-fp-math");  in resetTargetOptions()
138   RESET_OPTION(NoSignedZerosFPMath, "no-signed-zeros-fp-math");  in resetTargetOptions()
139   RESET_OPTION(ApproxFuncFPMath, "approx-func-fp-math");  in resetTargetOptions()
142 /// Returns the code generation relocation model. The choices are static, PIC,
143 /// and dynamic-no-pic.
160 /// Get the IR-specified TLS model for Var.
162   switch (GV->getThreadLocalMode()) {  in getSelectedTLSModel()
164     llvm_unreachable("getSelectedTLSModel for non-TLS variable");  in getSelectedTLSModel()
194   if (GV->isDSOLocal())  in shouldAssumeDSOLocal()
199     if (GV->hasDLLImportStorageClass())  in shouldAssumeDSOLocal()
207     if (TT.isWindowsGNUEnvironment() && GV->isDeclarationForLinker() &&  in shouldAssumeDSOLocal()
214     if (GV->hasExternalWeakLinkage())  in shouldAssumeDSOLocal()
227     return GV->isStrongDefinitionForLinker();  in shouldAssumeDSOLocal()
239   bool IsPIE = GV->getParent()->getPIELevel() != PIELevel::Default;  in getTLSModel()
278   if (MayAlwaysUsePrivate || !GV->hasPrivateLinkage()) {  in getNameWithPrefix()
285   TLOF->getNameWithPrefix(Name, GV, *this);  in getNameWithPrefix()
291   if (MCSymbol *TargetSymbol = TLOF->getTargetSymbol(GV, *this))  in getSymbol()
295   getNameWithPrefix(NameStr, GV, TLOF->getMangler());  in getSymbol()
296   return TLOF->getContext().getOrCreateSymbol(NameStr);  in getSymbol()
303       [this](const Function &F) { return this->getTargetTransformInfo(F); });  in getTargetIRAnalysis()