Fix the address of a label to be properly considered and emitted as a
constant.
llvm-svn: 62948
diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp
index 9d709d3..0e31cac 100644
--- a/clang/lib/CodeGen/CGExprConstant.cpp
+++ b/clang/lib/CodeGen/CGExprConstant.cpp
@@ -619,6 +619,12 @@
return CGM.GetAddrOfConstantCString(Str, ".tmp");
}
+ case Expr::AddrLabelExprClass: {
+ assert(CGF && "Invalid address of label expression outside function.");
+ unsigned id = CGF->GetIDForAddrOfLabel(cast<AddrLabelExpr>(E)->getLabel());
+ llvm::Constant *C = llvm::ConstantInt::get(llvm::Type::Int32Ty, id);
+ return llvm::ConstantExpr::getIntToPtr(C, ConvertType(E->getType()));
+ }
}
CGM.ErrorUnsupported(E, "constant l-value expression");
llvm::Type *Ty = llvm::PointerType::getUnqual(ConvertType(E->getType()));