diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp --- a/clang/lib/Sema/SemaDecl.cpp +++ b/clang/lib/Sema/SemaDecl.cpp @@ -13208,13 +13208,15 @@ DeducedDecl = D; } else if (!Context.hasSameType(DT->getDeducedType(), Deduced)) { auto *AT = dyn_cast(DT); - Diag(D->getTypeSourceInfo()->getTypeLoc().getBeginLoc(), - diag::err_auto_different_deductions) - << (AT ? (unsigned)AT->getKeyword() : 3) - << Deduced << DeducedDecl->getDeclName() - << DT->getDeducedType() << D->getDeclName() - << DeducedDecl->getInit()->getSourceRange() - << D->getInit()->getSourceRange(); + auto Dia = Diag(D->getTypeSourceInfo()->getTypeLoc().getBeginLoc(), + diag::err_auto_different_deductions) + << (AT ? (unsigned)AT->getKeyword() : 3) << Deduced + << DeducedDecl->getDeclName() << DT->getDeducedType() + << D->getDeclName(); + if (DeducedDecl->hasInit()) + Dia << DeducedDecl->getInit()->getSourceRange(); + if (D->getInit()) + Dia << D->getInit()->getSourceRange(); D->setInvalidDecl(); break; } diff --git a/clang/test/SemaCXX/auto-invalid-init-crash.cpp b/clang/test/SemaCXX/auto-invalid-init-crash.cpp new file mode 100644 --- /dev/null +++ b/clang/test/SemaCXX/auto-invalid-init-crash.cpp @@ -0,0 +1,9 @@ +// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fno-recovery-ast -verify %s + +namespace std { +template +class initializer_list{}; +int a; +auto c = a, &d = {a}; // expected-error {{'auto' deduced as 'int'}} \ + expected-error {{non-const lvalue reference to type}} +} // namespace std