https://llvm.org/bugs/show_bug.cgi?id=23932
Bug ID: 23932
Summary: Assertion failed: ((!Initializer ||
isa<ImplicitValueInitExpr>(Initializer) ||
isa<CXXConstructExpr>(Initializer)) && "Initializer
expression that cannot have been implicitly
created."), function BuildCXXNew
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Reduced test case:
// %clang_cc1 -emit-obj -fobjc-arc -Os -x objective-c++ %s
// REQUIRES: asserts
template <typename T> const id *f() { return new id; }
auto i = f<int>();
// template <typename T> const id *f() { new id[32]; return nullptr; }
With ARC, id needs to be value initialized. The TreeTransform over the
template specialization will transform the ImplicitValueInitExpr into a
ParenListExpr, which breaks the initialization type check in BuildCXXNew.
The commented out test case is relevant as the single id case can be handled by
adding parenthesis to avoid setup the DirectInitRange value, while the same
workaround cannot be applied to the second case.
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