Perform Objective-C lifetime adjustments before comparing deduced lambda result types.
Objective-C ARC lifetime qualifiers are dropped when canonicalizing
function types. Perform the same adjustment before comparing the
deduced result types of lambdas. Fixes rdar://problem/22344904.
llvm-svn: 249065
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index 8ca3f56..e876fa9 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -3028,8 +3028,11 @@
// the program is ill-formed.
if (AT->isDeduced() && !FD->isInvalidDecl()) {
AutoType *NewAT = Deduced->getContainedAutoType();
- if (!FD->isDependentContext() &&
- !Context.hasSameType(AT->getDeducedType(), NewAT->getDeducedType())) {
+ CanQualType OldDeducedType = Context.getCanonicalFunctionResultType(
+ AT->getDeducedType());
+ CanQualType NewDeducedType = Context.getCanonicalFunctionResultType(
+ NewAT->getDeducedType());
+ if (!FD->isDependentContext() && OldDeducedType != NewDeducedType) {
const LambdaScopeInfo *LambdaSI = getCurLambda();
if (LambdaSI && LambdaSI->HasImplicitReturnType) {
Diag(ReturnLoc, diag::err_typecheck_missing_return_type_incompatible)