diff options
| -rw-r--r-- | clang/lib/CodeGen/CGExpr.cpp | 14 | ||||
| -rw-r--r-- | clang/test/CodeGenCXX/references.cpp | 16 |
2 files changed, 26 insertions, 4 deletions
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp index f7c3fd09769..ad0baa32f94 100644 --- a/clang/lib/CodeGen/CGExpr.cpp +++ b/clang/lib/CodeGen/CGExpr.cpp @@ -634,8 +634,10 @@ LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) { LValue LV; bool GCable = VD->hasLocalStorage() && !VD->hasAttr<BlocksAttr>(); if (VD->hasExternalStorage()) { - LV = LValue::MakeAddr(CGM.GetAddrOfGlobalVar(VD), - E->getType().getCVRQualifiers(), + llvm::Value *V = CGM.GetAddrOfGlobalVar(VD); + if (VD->getType()->isReferenceType()) + V = Builder.CreateLoad(V, "tmp"); + LV = LValue::MakeAddr(V, E->getType().getCVRQualifiers(), getContext().getObjCGCAttrKind(E->getType())); } else { @@ -657,13 +659,17 @@ LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) { V = Builder.CreateBitCast(V, PtrStructTy); V = Builder.CreateStructGEP(V, needsCopyDispose*2 + 4, "x"); } + if (VD->getType()->isReferenceType()) + V = Builder.CreateLoad(V, "tmp"); LV = LValue::MakeAddr(V, E->getType().getCVRQualifiers(), attr); } LValue::SetObjCNonGC(LV, GCable); return LV; } else if (VD && VD->isFileVarDecl()) { - LValue LV = LValue::MakeAddr(CGM.GetAddrOfGlobalVar(VD), - E->getType().getCVRQualifiers(), + llvm::Value *V = CGM.GetAddrOfGlobalVar(VD); + if (VD->getType()->isReferenceType()) + V = Builder.CreateLoad(V, "tmp"); + LValue LV = LValue::MakeAddr(V, E->getType().getCVRQualifiers(), getContext().getObjCGCAttrKind(E->getType())); if (LV.isObjCStrong()) LV.SetGlobalObjCRef(LV, true); diff --git a/clang/test/CodeGenCXX/references.cpp b/clang/test/CodeGenCXX/references.cpp new file mode 100644 index 00000000000..26d7157e1cb --- /dev/null +++ b/clang/test/CodeGenCXX/references.cpp @@ -0,0 +1,16 @@ +// RUN: clang-cc -verify -emit-llvm -o %t %s + +void t1() { + extern int& a; + int b = a; +} + +void t2(int& a) { + int b = a; +} + +int g; +int& gr = g; +void t3() { + int b = gr; +} |
