diff options
Diffstat (limited to 'lib/CodeGen/CGExprAgg.cpp')
-rw-r--r-- | lib/CodeGen/CGExprAgg.cpp | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp index 0e10368..d225d90 100644 --- a/lib/CodeGen/CGExprAgg.cpp +++ b/lib/CodeGen/CGExprAgg.cpp @@ -20,7 +20,6 @@ #include "llvm/Constants.h" #include "llvm/Function.h" #include "llvm/GlobalVariable.h" -#include "llvm/Support/Compiler.h" #include "llvm/Intrinsics.h" using namespace clang; using namespace CodeGen; @@ -30,7 +29,7 @@ using namespace CodeGen; //===----------------------------------------------------------------------===// namespace { -class VISIBILITY_HIDDEN AggExprEmitter : public StmtVisitor<AggExprEmitter> { +class AggExprEmitter : public StmtVisitor<AggExprEmitter> { CodeGenFunction &CGF; CGBuilderTy &Builder; llvm::Value *DestPtr; @@ -223,6 +222,7 @@ void AggExprEmitter::VisitCastExpr(CastExpr *E) { break; } + case CastExpr::CK_DerivedToBaseMemberPointer: case CastExpr::CK_BaseToDerivedMemberPointer: { QualType SrcType = E->getSubExpr()->getType(); @@ -242,16 +242,22 @@ void AggExprEmitter::VisitCastExpr(CastExpr *E) { llvm::Value *DstAdj = Builder.CreateStructGEP(DestPtr, 1, "dst.adj"); // Now See if we need to update the adjustment. - const CXXRecordDecl *SrcDecl = + const CXXRecordDecl *BaseDecl = cast<CXXRecordDecl>(SrcType->getAs<MemberPointerType>()-> getClass()->getAs<RecordType>()->getDecl()); - const CXXRecordDecl *DstDecl = + const CXXRecordDecl *DerivedDecl = cast<CXXRecordDecl>(E->getType()->getAs<MemberPointerType>()-> getClass()->getAs<RecordType>()->getDecl()); - - llvm::Constant *Adj = CGF.CGM.GetCXXBaseClassOffset(DstDecl, SrcDecl); - if (Adj) - SrcAdj = Builder.CreateAdd(SrcAdj, Adj, "adj"); + if (E->getCastKind() == CastExpr::CK_DerivedToBaseMemberPointer) + std::swap(DerivedDecl, BaseDecl); + + llvm::Constant *Adj = CGF.CGM.GetCXXBaseClassOffset(DerivedDecl, BaseDecl); + if (Adj) { + if (E->getCastKind() == CastExpr::CK_DerivedToBaseMemberPointer) + SrcAdj = Builder.CreateSub(SrcAdj, Adj, "adj"); + else + SrcAdj = Builder.CreateAdd(SrcAdj, Adj, "adj"); + } Builder.CreateStore(SrcAdj, DstAdj, VolatileDest); break; @@ -389,21 +395,21 @@ void AggExprEmitter::VisitConditionalOperator(const ConditionalOperator *E) { llvm::Value *Cond = CGF.EvaluateExprAsBool(E->getCond()); Builder.CreateCondBr(Cond, LHSBlock, RHSBlock); - CGF.PushConditionalTempDestruction(); + CGF.StartConditionalBranch(); CGF.EmitBlock(LHSBlock); // Handle the GNU extension for missing LHS. assert(E->getLHS() && "Must have LHS for aggregate value"); Visit(E->getLHS()); - CGF.PopConditionalTempDestruction(); + CGF.FinishConditionalBranch(); CGF.EmitBranch(ContBlock); - CGF.PushConditionalTempDestruction(); + CGF.StartConditionalBranch(); CGF.EmitBlock(RHSBlock); Visit(E->getRHS()); - CGF.PopConditionalTempDestruction(); + CGF.FinishConditionalBranch(); CGF.EmitBranch(ContBlock); CGF.EmitBlock(ContBlock); |