c6e1fd70fb
Summary:
The crash is triggered on accessing a null InitExpr.
For group declaration, e.g. `auto c = a, &d = {a};`, what's happening:
1. each VarDecl is built separately during the parsing stage.
2. perform the semantic analysis (Sema::BuildDeclaratorGroup) to check
whether the type of the two VarDecl is the same, if not mark it as invalid.
in step 1, VarDecl c and d are built, both of them are valid (after D77395),
but d is without the InitExpr attached (under -fno-recovery-ast), crash
happens in step 2 when accessing the source range of d's InitExpr.
Reviewers: sammccall
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D79473
10 lines
311 B
C++
10 lines
311 B
C++
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fno-recovery-ast -verify %s
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namespace std {
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template <typename>
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class initializer_list{};
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int a;
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auto c = a, &d = {a}; // expected-error {{'auto' deduced as 'int'}} \
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expected-error {{non-const lvalue reference to type}}
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} // namespace std
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