maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Remove dead code. 

llvm-svn: 124554
This commit is contained in:
Anders Carlsson 2011-01-29 22:15:18 +00:00
parent 49f17537ee
commit 5b48bf70a8
1 changed files with 3 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
clang/lib/CodeGen/CGRTTI.cpp
View File

@ -63,64 +63,10 @@ class RTTIBuilder {
void BuildPointerToMemberTypeInfo(const MemberPointerType *Ty);
public:
RTTIBuilder(CodeGenModule &cgm)
: CGM(cgm), VMContext(cgm.getModule().getContext()),
Int8PtrTy(llvm::Type::getInt8PtrTy(VMContext)) { }
RTTIBuilder(CodeGenModule &CGM) : CGM(CGM),
VMContext(CGM.getModule().getContext()),
Int8PtrTy(llvm::Type::getInt8PtrTy(VMContext)) { }
llvm::Constant *BuildName(QualType Ty, bool Hidden,
llvm::GlobalVariable::LinkageTypes Linkage) {
llvm::SmallString<256> OutName;
CGM.getCXXABI().getMangleContext().mangleCXXRTTIName(Ty, OutName);
llvm::StringRef Name = OutName.str();
llvm::GlobalVariable *OGV = CGM.getModule().getNamedGlobal(Name);
if (OGV && !OGV->isDeclaration())
return llvm::ConstantExpr::getBitCast(OGV, Int8PtrTy);
llvm::Constant *C = llvm::ConstantArray::get(VMContext, Name.substr(4));
llvm::GlobalVariable *GV =
new llvm::GlobalVariable(CGM.getModule(), C->getType(), true, Linkage,
C, Name);
if (OGV) {
GV->takeName(OGV);
llvm::Constant *NewPtr = llvm::ConstantExpr::getBitCast(GV,
OGV->getType());
OGV->replaceAllUsesWith(NewPtr);
OGV->eraseFromParent();
}
if (Hidden && Linkage != llvm::GlobalValue::InternalLinkage)
GV->setVisibility(llvm::GlobalVariable::HiddenVisibility);
return llvm::ConstantExpr::getBitCast(GV, Int8PtrTy);
}
// FIXME: unify with DecideExtern
bool DecideHidden(QualType Ty) {
// For this type, see if all components are never hidden.
if (const MemberPointerType *MPT = Ty->getAs<MemberPointerType>())
return (DecideHidden(MPT->getPointeeType())
&& DecideHidden(QualType(MPT->getClass(), 0)));
if (const PointerType *PT = Ty->getAs<PointerType>())
return DecideHidden(PT->getPointeeType());
if (const FunctionType *FT = Ty->getAs<FunctionType>()) {
if (DecideHidden(FT->getResultType()) == false)
return false;
if (const FunctionProtoType *FPT = Ty->getAs<FunctionProtoType>()) {
for (unsigned i = 0; i <FPT->getNumArgs(); ++i)
if (DecideHidden(FPT->getArgType(i)) == false)
return false;
for (unsigned i = 0; i <FPT->getNumExceptions(); ++i)
if (DecideHidden(FPT->getExceptionType(i)) == false)
return false;
return true;
}
}
if (const RecordType *RT = Ty->getAs<RecordType>())
if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl()))
return RD->getVisibility() == HiddenVisibility;
return false;
}
// Pointer type info flags.
enum {
/// PTI_Const - Type has const qualifier.