Move CGCXXABI functions to CGCXXABI.cpp
llvm-svn: 120250
diff --git a/clang/lib/CodeGen/CGCXXABI.cpp b/clang/lib/CodeGen/CGCXXABI.cpp
index aeba147..21fb732 100644
--- a/clang/lib/CodeGen/CGCXXABI.cpp
+++ b/clang/lib/CodeGen/CGCXXABI.cpp
@@ -15,4 +15,159 @@
#include "CGCXXABI.h"
using namespace clang;
+using namespace CodeGen;
+void CGCXXABI::_anchor() {}
+
+static void ErrorUnsupportedABI(CodeGenFunction &CGF,
+ llvm::StringRef S) {
+ Diagnostic &Diags = CGF.CGM.getDiags();
+ unsigned DiagID = Diags.getCustomDiagID(Diagnostic::Error,
+ "cannot yet compile %1 in this ABI");
+ Diags.Report(CGF.getContext().getFullLoc(CGF.CurCodeDecl->getLocation()),
+ DiagID)
+ << S;
+}
+
+static llvm::Constant *GetBogusMemberPointer(CodeGenModule &CGM,
+ QualType T) {
+ return llvm::Constant::getNullValue(CGM.getTypes().ConvertType(T));
+}
+
+const llvm::Type *
+CGCXXABI::ConvertMemberPointerType(const MemberPointerType *MPT) {
+ return CGM.getTypes().ConvertType(CGM.getContext().getPointerDiffType());
+}
+
+llvm::Value *CGCXXABI::EmitLoadOfMemberFunctionPointer(CodeGenFunction &CGF,
+ llvm::Value *&This,
+ llvm::Value *MemPtr,
+ const MemberPointerType *MPT) {
+ ErrorUnsupportedABI(CGF, "calls through member pointers");
+
+ const FunctionProtoType *FPT =
+ MPT->getPointeeType()->getAs<FunctionProtoType>();
+ const CXXRecordDecl *RD =
+ cast<CXXRecordDecl>(MPT->getClass()->getAs<RecordType>()->getDecl());
+ const llvm::FunctionType *FTy =
+ CGM.getTypes().GetFunctionType(CGM.getTypes().getFunctionInfo(RD, FPT),
+ FPT->isVariadic());
+ return llvm::Constant::getNullValue(FTy->getPointerTo());
+}
+
+llvm::Value *CGCXXABI::EmitMemberDataPointerAddress(CodeGenFunction &CGF,
+ llvm::Value *Base,
+ llvm::Value *MemPtr,
+ const MemberPointerType *MPT) {
+ ErrorUnsupportedABI(CGF, "loads of member pointers");
+ const llvm::Type *Ty = CGF.ConvertType(MPT->getPointeeType())->getPointerTo();
+ return llvm::Constant::getNullValue(Ty);
+}
+
+llvm::Value *CGCXXABI::EmitMemberPointerConversion(CodeGenFunction &CGF,
+ const CastExpr *E,
+ llvm::Value *Src) {
+ ErrorUnsupportedABI(CGF, "member function pointer conversions");
+ return GetBogusMemberPointer(CGM, E->getType());
+}
+
+llvm::Value *
+CGCXXABI::EmitMemberPointerComparison(CodeGenFunction &CGF,
+ llvm::Value *L,
+ llvm::Value *R,
+ const MemberPointerType *MPT,
+ bool Inequality) {
+ ErrorUnsupportedABI(CGF, "member function pointer comparison");
+ return CGF.Builder.getFalse();
+}
+
+llvm::Value *
+CGCXXABI::EmitMemberPointerIsNotNull(CodeGenFunction &CGF,
+ llvm::Value *MemPtr,
+ const MemberPointerType *MPT) {
+ ErrorUnsupportedABI(CGF, "member function pointer null testing");
+ return CGF.Builder.getFalse();
+}
+
+llvm::Constant *
+CGCXXABI::EmitMemberPointerConversion(llvm::Constant *C, const CastExpr *E) {
+ return GetBogusMemberPointer(CGM, E->getType());
+}
+
+llvm::Constant *
+CGCXXABI::EmitNullMemberPointer(const MemberPointerType *MPT) {
+ return GetBogusMemberPointer(CGM, QualType(MPT, 0));
+}
+
+llvm::Constant *CGCXXABI::EmitMemberPointer(const CXXMethodDecl *MD) {
+ return GetBogusMemberPointer(CGM,
+ CGM.getContext().getMemberPointerType(MD->getType(),
+ MD->getParent()->getTypeForDecl()));
+}
+
+llvm::Constant *CGCXXABI::EmitMemberPointer(const FieldDecl *FD) {
+ return GetBogusMemberPointer(CGM,
+ CGM.getContext().getMemberPointerType(FD->getType(),
+ FD->getParent()->getTypeForDecl()));
+}
+
+bool CGCXXABI::isZeroInitializable(const MemberPointerType *MPT) {
+ // Fake answer.
+ return true;
+}
+
+void CGCXXABI::BuildThisParam(CodeGenFunction &CGF, FunctionArgList &Params) {
+ const CXXMethodDecl *MD = cast<CXXMethodDecl>(CGF.CurGD.getDecl());
+
+ // FIXME: I'm not entirely sure I like using a fake decl just for code
+ // generation. Maybe we can come up with a better way?
+ ImplicitParamDecl *ThisDecl
+ = ImplicitParamDecl::Create(CGM.getContext(), 0, MD->getLocation(),
+ &CGM.getContext().Idents.get("this"),
+ MD->getThisType(CGM.getContext()));
+ Params.push_back(std::make_pair(ThisDecl, ThisDecl->getType()));
+ getThisDecl(CGF) = ThisDecl;
+}
+
+void CGCXXABI::EmitThisParam(CodeGenFunction &CGF) {
+ /// Initialize the 'this' slot.
+ assert(getThisDecl(CGF) && "no 'this' variable for function");
+ getThisValue(CGF)
+ = CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(getThisDecl(CGF)),
+ "this");
+}
+
+void CGCXXABI::EmitReturnFromThunk(CodeGenFunction &CGF,
+ RValue RV, QualType ResultType) {
+ CGF.EmitReturnOfRValue(RV, ResultType);
+}
+
+CharUnits CGCXXABI::GetArrayCookieSize(QualType ElementType) {
+ return CharUnits::Zero();
+}
+
+llvm::Value *CGCXXABI::InitializeArrayCookie(CodeGenFunction &CGF,
+ llvm::Value *NewPtr,
+ llvm::Value *NumElements,
+ QualType ElementType) {
+ // Should never be called.
+ ErrorUnsupportedABI(CGF, "array cookie initialization");
+ return 0;
+}
+
+void CGCXXABI::ReadArrayCookie(CodeGenFunction &CGF, llvm::Value *Ptr,
+ QualType ElementType, llvm::Value *&NumElements,
+ llvm::Value *&AllocPtr, CharUnits &CookieSize) {
+ ErrorUnsupportedABI(CGF, "array cookie reading");
+
+ // This should be enough to avoid assertions.
+ NumElements = 0;
+ AllocPtr = llvm::Constant::getNullValue(CGF.Builder.getInt8PtrTy());
+ CookieSize = CharUnits::Zero();
+}
+
+void CGCXXABI::EmitGuardedInit(CodeGenFunction &CGF,
+ const VarDecl &D,
+ llvm::GlobalVariable *GV) {
+ ErrorUnsupportedABI(CGF, "static local variable initialization");
+}