aboutsummaryrefslogtreecommitdiff
path: root/lib/VMCore/Module.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/VMCore/Module.cpp')
-rw-r--r--lib/VMCore/Module.cpp141
1 files changed, 1 insertions, 140 deletions
diff --git a/lib/VMCore/Module.cpp b/lib/VMCore/Module.cpp
index 3799ed6c0b..a6e335c10c 100644
--- a/lib/VMCore/Module.cpp
+++ b/lib/VMCore/Module.cpp
@@ -469,145 +469,6 @@ void Module::removeLibrary(StringRef Lib) {
}
}
-//===----------------------------------------------------------------------===//
-// Type finding functionality.
-//===----------------------------------------------------------------------===//
-
-namespace {
- /// TypeFinder - Walk over a module, identifying all of the types that are
- /// used by the module.
- class TypeFinder {
- // To avoid walking constant expressions multiple times and other IR
- // objects, we keep several helper maps.
- DenseSet<const Value*> VisitedConstants;
- DenseSet<Type*> VisitedTypes;
-
- std::vector<StructType*> &StructTypes;
- bool OnlyNamed;
- public:
- TypeFinder(std::vector<StructType*> &structTypes, bool onlyNamed)
- : StructTypes(structTypes), OnlyNamed(onlyNamed) {}
-
- void run(const Module &M) {
- // Get types from global variables.
- for (Module::const_global_iterator I = M.global_begin(),
- E = M.global_end(); I != E; ++I) {
- incorporateType(I->getType());
- if (I->hasInitializer())
- incorporateValue(I->getInitializer());
- }
-
- // Get types from aliases.
- for (Module::const_alias_iterator I = M.alias_begin(),
- E = M.alias_end(); I != E; ++I) {
- incorporateType(I->getType());
- if (const Value *Aliasee = I->getAliasee())
- incorporateValue(Aliasee);
- }
-
- // Get types from functions.
- SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
- for (Module::const_iterator FI = M.begin(), E = M.end(); FI != E; ++FI) {
- incorporateType(FI->getType());
-
- // First incorporate the arguments.
- for (Function::const_arg_iterator AI = FI->arg_begin(),
- AE = FI->arg_end(); AI != AE; ++AI)
- incorporateValue(AI);
-
- for (Function::const_iterator BB = FI->begin(), E = FI->end();
- BB != E;++BB)
- for (BasicBlock::const_iterator II = BB->begin(),
- E = BB->end(); II != E; ++II) {
- const Instruction &I = *II;
- // Incorporate the type of the instruction.
- incorporateType(I.getType());
-
- // Incorporate non-instruction operand types. (We are incorporating
- // all instructions with this loop.)
- for (User::const_op_iterator OI = I.op_begin(), OE = I.op_end();
- OI != OE; ++OI)
- if (!isa<Instruction>(OI))
- incorporateValue(*OI);
-
- // Incorporate types hiding in metadata.
- I.getAllMetadataOtherThanDebugLoc(MDForInst);
- for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
- incorporateMDNode(MDForInst[i].second);
- MDForInst.clear();
- }
- }
-
- for (Module::const_named_metadata_iterator I = M.named_metadata_begin(),
- E = M.named_metadata_end(); I != E; ++I) {
- const NamedMDNode *NMD = I;
- for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
- incorporateMDNode(NMD->getOperand(i));
- }
- }
-
- private:
- void incorporateType(Type *Ty) {
- // Check to see if we're already visited this type.
- if (!VisitedTypes.insert(Ty).second)
- return;
-
- // If this is a structure or opaque type, add a name for the type.
- if (StructType *STy = dyn_cast<StructType>(Ty))
- if (!OnlyNamed || STy->hasName())
- StructTypes.push_back(STy);
-
- // Recursively walk all contained types.
- for (Type::subtype_iterator I = Ty->subtype_begin(),
- E = Ty->subtype_end(); I != E; ++I)
- incorporateType(*I);
- }
-
- /// incorporateValue - This method is used to walk operand lists finding
- /// types hiding in constant expressions and other operands that won't be
- /// walked in other ways. GlobalValues, basic blocks, instructions, and
- /// inst operands are all explicitly enumerated.
- void incorporateValue(const Value *V) {
- if (const MDNode *M = dyn_cast<MDNode>(V))
- return incorporateMDNode(M);
- if (!isa<Constant>(V) || isa<GlobalValue>(V)) return;
-
- // Already visited?
- if (!VisitedConstants.insert(V).second)
- return;
-
- // Check this type.
- incorporateType(V->getType());
-
- // If this is an instruction, we incorporate it separately.
- if (isa<Instruction>(V))
- return;
-
- // Look in operands for types.
- const User *U = cast<User>(V);
- for (Constant::const_op_iterator I = U->op_begin(),
- E = U->op_end(); I != E;++I)
- incorporateValue(*I);
- }
-
- void incorporateMDNode(const MDNode *V) {
-
- // Already visited?
- if (!VisitedConstants.insert(V).second)
- return;
-
- // Look in operands for types.
- for (unsigned i = 0, e = V->getNumOperands(); i != e; ++i)
- if (Value *Op = V->getOperand(i))
- incorporateValue(Op);
- }
- };
-} // end anonymous namespace
-
-void Module::findUsedStructTypes(std::vector<StructType*> &StructTypes,
- bool OnlyNamed) const {
- TypeFinder(StructTypes, OnlyNamed).run(*this);
-}
// @LOCALMOD-BEGIN
// TODO(pdox):
@@ -784,4 +645,4 @@ void Module::getNeededRecords(std::vector<NeededRecord> *NeededOut) const {
NeededOut->push_back(NR);
}
}
-// @LOCALMOD-END
+// @LOCALMOD-END \ No newline at end of file