#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/ExecutionEngine/Orc/CloneSubModule.h"
#include "llvm/ExecutionEngine/Orc/IndirectionUtils.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/IRBuilder.h"
+#include "llvm/Transforms/Utils/Cloning.h"
#include <set>
#include <sstream>
const Twine &Name, Constant *Initializer) {
if (!Initializer)
Initializer = Constant::getNullValue(&PT);
- return new GlobalVariable(M, &PT, false, GlobalValue::ExternalLinkage,
- Initializer, Name, nullptr,
- GlobalValue::NotThreadLocal, 0, true);
+ auto IP = new GlobalVariable(M, &PT, false, GlobalValue::ExternalLinkage,
+ Initializer, Name, nullptr,
+ GlobalValue::NotThreadLocal, 0, true);
+ IP->setVisibility(GlobalValue::HiddenVisibility);
+ return IP;
}
void makeStub(Function &F, GlobalVariable &ImplPointer) {
CallInst *Call = Builder.CreateCall(ImplAddr, CallArgs);
Call->setTailCall();
Call->setAttributes(F.getAttributes());
- Builder.CreateRet(Call);
+ if (F.getReturnType()->isVoidTy())
+ Builder.CreateRetVoid();
+ else
+ Builder.CreateRet(Call);
}
// Utility class for renaming global values and functions during partitioning.
DenseMap<const Value*, std::string> Names;
};
-void partition(Module &M, const ModulePartitionMap &PMap) {
-
- GlobalRenamer Renamer;
-
- for (auto &KVPair : PMap) {
-
- auto ExtractGlobalVars =
- [&](GlobalVariable &New, const GlobalVariable &Orig,
- ValueToValueMapTy &VMap) {
- if (KVPair.second.count(&Orig)) {
- copyGVInitializer(New, Orig, VMap);
- }
- if (New.hasLocalLinkage()) {
- if (Renamer.needsRenaming(New))
- New.setName(Renamer.getRename(Orig));
- New.setLinkage(GlobalValue::ExternalLinkage);
- New.setVisibility(GlobalValue::HiddenVisibility);
- }
- assert(!Renamer.needsRenaming(New) && "Invalid global name.");
- };
-
- auto ExtractFunctions =
- [&](Function &New, const Function &Orig, ValueToValueMapTy &VMap) {
- if (KVPair.second.count(&Orig))
- copyFunctionBody(New, Orig, VMap);
- if (New.hasLocalLinkage()) {
- if (Renamer.needsRenaming(New))
- New.setName(Renamer.getRename(Orig));
- New.setLinkage(GlobalValue::ExternalLinkage);
- New.setVisibility(GlobalValue::HiddenVisibility);
- }
- assert(!Renamer.needsRenaming(New) && "Invalid function name.");
- };
-
- CloneSubModule(*KVPair.first, M, ExtractGlobalVars, ExtractFunctions,
- false);
+static void raiseVisibilityOnValue(GlobalValue &V, GlobalRenamer &R) {
+ if (V.hasLocalLinkage()) {
+ if (R.needsRenaming(V))
+ V.setName(R.getRename(V));
+ V.setLinkage(GlobalValue::ExternalLinkage);
+ V.setVisibility(GlobalValue::HiddenVisibility);
}
+ V.setUnnamedAddr(false);
+ assert(!R.needsRenaming(V) && "Invalid global name.");
}
-FullyPartitionedModule fullyPartition(Module &M) {
- FullyPartitionedModule MP;
-
- ModulePartitionMap PMap;
+void makeAllSymbolsExternallyAccessible(Module &M) {
+ GlobalRenamer Renamer;
- for (auto &F : M) {
+ for (auto &F : M)
+ raiseVisibilityOnValue(F, Renamer);
- if (F.isDeclaration())
- continue;
+ for (auto &GV : M.globals())
+ raiseVisibilityOnValue(GV, Renamer);
+}
- std::string NewModuleName = (M.getName() + "." + F.getName()).str();
- MP.Functions.push_back(
- llvm::make_unique<Module>(NewModuleName, M.getContext()));
- MP.Functions.back()->setDataLayout(M.getDataLayout());
- PMap[MP.Functions.back().get()].insert(&F);
+Function* cloneFunctionDecl(Module &Dst, const Function &F,
+ ValueToValueMapTy *VMap) {
+ assert(F.getParent() != &Dst && "Can't copy decl over existing function.");
+ Function *NewF =
+ Function::Create(cast<FunctionType>(F.getType()->getElementType()),
+ F.getLinkage(), F.getName(), &Dst);
+ NewF->copyAttributesFrom(&F);
+
+ if (VMap) {
+ (*VMap)[&F] = NewF;
+ auto NewArgI = NewF->arg_begin();
+ for (auto ArgI = F.arg_begin(), ArgE = F.arg_end(); ArgI != ArgE;
+ ++ArgI, ++NewArgI)
+ (*VMap)[ArgI] = NewArgI;
}
- MP.GlobalVars =
- llvm::make_unique<Module>((M.getName() + ".globals_and_stubs").str(),
- M.getContext());
- MP.GlobalVars->setDataLayout(M.getDataLayout());
-
- MP.Commons =
- llvm::make_unique<Module>((M.getName() + ".commons").str(), M.getContext());
- MP.Commons->setDataLayout(M.getDataLayout());
+ return NewF;
+}
- // Make sure there's at least an empty set for the stubs map or we'll fail
- // to clone anything for it (including the decls).
- PMap[MP.GlobalVars.get()] = ModulePartitionMap::mapped_type();
- for (auto &GV : M.globals())
- if (GV.getLinkage() == GlobalValue::CommonLinkage)
- PMap[MP.Commons.get()].insert(&GV);
- else
- PMap[MP.GlobalVars.get()].insert(&GV);
+void moveFunctionBody(Function &OrigF, ValueToValueMapTy &VMap,
+ ValueMaterializer *Materializer,
+ Function *NewF) {
+ assert(!OrigF.isDeclaration() && "Nothing to move");
+ if (!NewF)
+ NewF = cast<Function>(VMap[&OrigF]);
+ else
+ assert(VMap[&OrigF] == NewF && "Incorrect function mapping in VMap.");
+ assert(NewF && "Function mapping missing from VMap.");
+ assert(NewF->getParent() != OrigF.getParent() &&
+ "moveFunctionBody should only be used to move bodies between "
+ "modules.");
+
+ SmallVector<ReturnInst *, 8> Returns; // Ignore returns cloned.
+ CloneFunctionInto(NewF, &OrigF, VMap, /*ModuleLevelChanges=*/true, Returns,
+ "", nullptr, nullptr, Materializer);
+ OrigF.deleteBody();
+}
- partition(M, PMap);
+GlobalVariable* cloneGlobalVariableDecl(Module &Dst, const GlobalVariable &GV,
+ ValueToValueMapTy *VMap) {
+ assert(GV.getParent() != &Dst && "Can't copy decl over existing global var.");
+ GlobalVariable *NewGV = new GlobalVariable(
+ Dst, GV.getType()->getElementType(), GV.isConstant(),
+ GV.getLinkage(), nullptr, GV.getName(), nullptr,
+ GV.getThreadLocalMode(), GV.getType()->getAddressSpace());
+ NewGV->copyAttributesFrom(&GV);
+ if (VMap)
+ (*VMap)[&GV] = NewGV;
+ return NewGV;
+}
- return MP;
+void moveGlobalVariableInitializer(GlobalVariable &OrigGV,
+ ValueToValueMapTy &VMap,
+ ValueMaterializer *Materializer,
+ GlobalVariable *NewGV) {
+ assert(OrigGV.hasInitializer() && "Nothing to move");
+ if (!NewGV)
+ NewGV = cast<GlobalVariable>(VMap[&OrigGV]);
+ else
+ assert(VMap[&OrigGV] == NewGV &&
+ "Incorrect global variable mapping in VMap.");
+ assert(NewGV->getParent() != OrigGV.getParent() &&
+ "moveGlobalVariable should only be used to move initializers between "
+ "modules");
+
+ NewGV->setInitializer(MapValue(OrigGV.getInitializer(), VMap, RF_None,
+ nullptr, Materializer));
}
} // End namespace orc.
projects / oota-llvm.git / blobdiff