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Add a flag to the struct type finder to collect only those types which have

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names. This saves collecting types we normally don't care about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155300 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2012-04-21 23:59:16 +00:00
parent 2dbd7844e8
commit d46575f190
3 changed files with 12 additions and 8 deletions
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3
include/llvm/Module.h
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@ -303,7 +303,8 @@ public:
/// findUsedStructTypes - Walk the entire module and find all of the
/// struct types that are in use, returning them in a vector.
void findUsedStructTypes(std::vector<StructType*> &StructTypes) const;
void findUsedStructTypes(std::vector<StructType*> &StructTypes,
bool OnlyNamed = false) const;
/// getTypeByName - Return the type with the specified name, or null if there
/// is none by that name.

4
lib/Linker/LinkModules.cpp
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@ -595,12 +595,12 @@ void ModuleLinker::computeTypeMapping() {
// example. When the source module got loaded into the same LLVMContext, if
// it had the same type, it would have been renamed to "%foo.42 = { i32 }".
std::vector<StructType*> SrcStructTypes;
SrcM->findUsedStructTypes(SrcStructTypes);
SrcM->findUsedStructTypes(SrcStructTypes, true);
SmallPtrSet<StructType*, 32> SrcStructTypesSet(SrcStructTypes.begin(),
SrcStructTypes.end());
std::vector<StructType*> DstStructTypes;
DstM->findUsedStructTypes(DstStructTypes);
DstM->findUsedStructTypes(DstStructTypes, true);
SmallPtrSet<StructType*, 32> DstStructTypesSet(DstStructTypes.begin(),
DstStructTypes.end());

13
lib/VMCore/Module.cpp
View File

@ -483,9 +483,10 @@ namespace {
DenseSet<Type*> VisitedTypes;
std::vector<StructType*> &StructTypes;
bool OnlyNamed;
public:
TypeFinder(std::vector<StructType*> &structTypes)
: StructTypes(structTypes) {}
TypeFinder(std::vector<StructType*> &structTypes, bool onlyNamed)
: StructTypes(structTypes), OnlyNamed(onlyNamed) {}
void run(const Module &M) {
// Get types from global variables.
@ -545,7 +546,8 @@ namespace {
// If this is a structure or opaque type, add a name for the type.
if (StructType *STy = dyn_cast<StructType>(Ty))
StructTypes.push_back(STy);
if (!OnlyNamed || STy->hasName())
StructTypes.push_back(STy);
// Recursively walk all contained types.
for (Type::subtype_iterator I = Ty->subtype_begin(),
@ -590,6 +592,7 @@ namespace {
};
} // end anonymous namespace
void Module::findUsedStructTypes(std::vector<StructType*> &StructTypes) const {
TypeFinder(StructTypes).run(*this);
void Module::findUsedStructTypes(std::vector<StructType*> &StructTypes,
bool OnlyNamed) const {
TypeFinder(StructTypes, OnlyNamed).run(*this);
}