diff options
Diffstat (limited to 'lib/CodeGen/CGExprScalar.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprScalar.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp index 7334dd7e81..229b05f93e 100644 --- a/lib/CodeGen/CGExprScalar.cpp +++ b/lib/CodeGen/CGExprScalar.cpp @@ -513,10 +513,14 @@ Value *ScalarExprEmitter::VisitImplicitCastExpr(const ImplicitCastExpr *E) { // will not true when we add support for VLAs. Value *V = EmitLValue(Op).getAddress(); // Bitfields can't be arrays. - assert(isa<llvm::PointerType>(V->getType()) && - isa<llvm::ArrayType>(cast<llvm::PointerType>(V->getType()) - ->getElementType()) && - "Doesn't support VLAs yet!"); + if (!(isa<llvm::PointerType>(V->getType()) && + isa<llvm::ArrayType>(cast<llvm::PointerType>(V->getType()) + ->getElementType()))) { + CGF.ErrorUnsupported(E, "variable-length array cast"); + if (E->getType()->isVoidType()) + return 0; + return llvm::UndefValue::get(CGF.ConvertType(E->getType())); + } V = Builder.CreateStructGEP(V, 0, "arraydecay"); // The resultant pointer type can be implicitly casted to other pointer |