Make the constant folder aware of
__builtin___CFStringMakeConstantString. (We get into trouble in
GenerateStaticBlockVarDecl if the constant folder isn't accurate.)
llvm-svn: 62949
diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp
index 0e31cac..716e295 100644
--- a/clang/lib/CodeGen/CGExprConstant.cpp
+++ b/clang/lib/CodeGen/CGExprConstant.cpp
@@ -625,6 +625,15 @@
llvm::Constant *C = llvm::ConstantInt::get(llvm::Type::Int32Ty, id);
return llvm::ConstantExpr::getIntToPtr(C, ConvertType(E->getType()));
}
+ case Expr::CallExprClass: {
+ CallExpr* CE = cast<CallExpr>(E);
+ if (CE->isBuiltinCall() != Builtin::BI__builtin___CFStringMakeConstantString)
+ break;
+ const Expr *Arg = CE->getArg(0)->IgnoreParenCasts();
+ const StringLiteral *Literal = cast<StringLiteral>(Arg);
+ std::string S(Literal->getStrData(), Literal->getByteLength());
+ return CGM.GetAddrOfConstantCFString(S);
+ }
}
CGM.ErrorUnsupported(E, "constant l-value expression");
llvm::Type *Ty = llvm::PointerType::getUnqual(ConvertType(E->getType()));