74   bool lowerFunction(Function &F);
81 std::pair<uint32_t, uint32_t> getNumCountersAndCallsites(const Function &F) {  in getNumCountersAndCallsites()  argument
84   for (const auto &BB : F) {  in getNumCountersAndCallsites()
110 void emitUnsupportedRootError(const Function &F, StringRef Reason) {  in emitUnsupportedRootError()  argument
111   F.getContext().emitError("[ctxprof] The function " + F.getName() +  in emitUnsupportedRootError()
167     if (const auto *F = M.getFunction(Fname)) {  in CtxInstrumentationLowerer()  local
168       if (F->isDeclaration())  in CtxInstrumentationLowerer()
170       ContextRootSet.insert(F);  in CtxInstrumentationLowerer()
171       for (const auto &BB : *F)  in CtxInstrumentationLowerer()
175               emitUnsupportedRootError(*F, "it features musttail calls");  in CtxInstrumentationLowerer()
225   for (auto &F : M)  in run()  local
226     Changed |= Lowerer.lowerFunction(F);  in run()
230 bool CtxInstrumentationLowerer::lowerFunction(Function &F) {  in lowerFunction()  argument
231   if (F.isDeclaration())  in lowerFunction()
236   if (!llvm::canReturn(F)) {  in lowerFunction()
237     for (auto &BB : F)  in lowerFunction()
241     if (ContextRootSet.contains(&F))  in lowerFunction()
242       emitUnsupportedRootError(F, "it does not return");  in lowerFunction()
247   auto &ORE = FAM.getResult<OptimizationRemarkEmitterAnalysis>(F);  in lowerFunction()
250   auto [NumCounters, NumCallsites] = getNumCountersAndCallsites(F);  in lowerFunction()
259   const bool HasMusttail = [&F]() {  in lowerFunction()
260     for (auto &BB : F)  in lowerFunction()
268   if (HasMusttail && ContextRootSet.contains(&F)) {  in lowerFunction()
269     F.getContext().emitError(  in lowerFunction()
273         F.getName());  in lowerFunction()
276   auto &Head = F.getEntryBlock();  in lowerFunction()
289           F.getContext(),  in lowerFunction()
308       if (ContextRootSet.contains(&F)) {  in lowerFunction()
313             [&] { return OptimizationRemark(DEBUG_TYPE, "Entrypoint", &F); });  in lowerFunction()
315         Context = Builder.CreateCall(GetCtx, {TheRootFuctionData, &F, Guid,  in lowerFunction()
319           return OptimizationRemark(DEBUG_TYPE, "RegularFunction", &F);  in lowerFunction()
330             PointerType::getUnqual(F.getContext()),  in lowerFunction()
343           PointerType::getUnqual(F.getContext()));  in lowerFunction()
350       return OptimizationRemarkMissed(DEBUG_TYPE, "Skip", &F)  in lowerFunction()
357   for (auto &BB : F) {  in lowerFunction()
408     F.getContext().emitError(  in lowerFunction()
412         F.getName());  in lowerFunction()
419   for (auto &F : M) {  in run()  local
420     if (F.isDeclaration())  in run()
422     if (F.hasFnAttribute(Attribute::NoInline))  in run()
424     if (!F.isWeakForLinker())  in run()
427     if (F.hasFnAttribute(Attribute::AlwaysInline))  in run()
428       F.removeFnAttr(Attribute::AlwaysInline);  in run()
430     F.addFnAttr(Attribute::NoInline);  in run()