diff options
Diffstat (limited to 'clang/lib/CodeGen/ItaniumCXXABI.cpp')
| -rw-r--r-- | clang/lib/CodeGen/ItaniumCXXABI.cpp | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp index f3ac03dbce0..66387d32684 100644 --- a/clang/lib/CodeGen/ItaniumCXXABI.cpp +++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp @@ -142,6 +142,9 @@ public: CallExpr::const_arg_iterator ArgBeg, CallExpr::const_arg_iterator ArgEnd); + llvm::Value *getVirtualFunctionPointer(CodeGenFunction &CGF, GlobalDecl GD, + llvm::Value *This, llvm::Type *Ty); + void EmitVirtualDestructorCall(CodeGenFunction &CGF, const CXXDestructorDecl *Dtor, CXXDtorType DtorType, SourceLocation CallLoc, @@ -885,6 +888,20 @@ void ItaniumCXXABI::EmitConstructorCall(CodeGenFunction &CGF, This, VTT, VTTTy, ArgBeg, ArgEnd); } +llvm::Value *ItaniumCXXABI::getVirtualFunctionPointer(CodeGenFunction &CGF, + GlobalDecl GD, + llvm::Value *This, + llvm::Type *Ty) { + GD = GD.getCanonicalDecl(); + Ty = Ty->getPointerTo()->getPointerTo(); + llvm::Value *VTable = CGF.GetVTablePtr(This, Ty); + + uint64_t VTableIndex = CGM.getVTableContext().getMethodVTableIndex(GD); + llvm::Value *VFuncPtr = + CGF.Builder.CreateConstInBoundsGEP1_64(VTable, VTableIndex, "vfn"); + return CGF.Builder.CreateLoad(VFuncPtr); +} + void ItaniumCXXABI::EmitVirtualDestructorCall(CodeGenFunction &CGF, const CXXDestructorDecl *Dtor, CXXDtorType DtorType, @@ -895,8 +912,8 @@ void ItaniumCXXABI::EmitVirtualDestructorCall(CodeGenFunction &CGF, const CGFunctionInfo *FInfo = &CGM.getTypes().arrangeCXXDestructor(Dtor, DtorType); llvm::Type *Ty = CGF.CGM.getTypes().GetFunctionType(*FInfo); - llvm::Value *Callee - = CGF.BuildVirtualCall(GlobalDecl(Dtor, DtorType), This, Ty); + llvm::Value *Callee = + getVirtualFunctionPointer(CGF, GlobalDecl(Dtor, DtorType), This, Ty); CGF.EmitCXXMemberCall(Dtor, CallLoc, Callee, ReturnValueSlot(), This, /*ImplicitParam=*/0, QualType(), 0, 0); |
