diff options
| -rw-r--r-- | gcc/cp/constexpr.cc | 9 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/template/non-dependent21.C | 9 |
2 files changed, 17 insertions, 1 deletions
diff --git a/gcc/cp/constexpr.cc b/gcc/cp/constexpr.cc index 7274c3b..4716694 100644 --- a/gcc/cp/constexpr.cc +++ b/gcc/cp/constexpr.cc @@ -9065,6 +9065,14 @@ potential_constant_expression_1 (tree t, bool want_rval, bool strict, bool now, case BIND_EXPR: return RECUR (BIND_EXPR_BODY (t), want_rval); + case NON_DEPENDENT_EXPR: + /* Treat NON_DEPENDENT_EXPR as non-constant: it's not handled by + constexpr evaluation or tsubst, so fold_non_dependent_expr can't + do anything useful with it. And we shouldn't see it in a context + where a constant expression is strictly required, hence the assert. */ + gcc_checking_assert (!(flags & tf_error)); + return false; + case CLEANUP_POINT_EXPR: case MUST_NOT_THROW_EXPR: case TRY_CATCH_EXPR: @@ -9072,7 +9080,6 @@ potential_constant_expression_1 (tree t, bool want_rval, bool strict, bool now, case EH_SPEC_BLOCK: case EXPR_STMT: case PAREN_EXPR: - case NON_DEPENDENT_EXPR: /* For convenience. */ case LOOP_EXPR: case EXIT_EXPR: diff --git a/gcc/testsuite/g++.dg/template/non-dependent21.C b/gcc/testsuite/g++.dg/template/non-dependent21.C new file mode 100644 index 0000000..89900837 --- /dev/null +++ b/gcc/testsuite/g++.dg/template/non-dependent21.C @@ -0,0 +1,9 @@ +// PR c++/104507 + +extern const char *_k_errmsg[]; + +template<class> +const char* DoFoo(int __r, int __s) { + const char* n = _k_errmsg[(bool)__r && __s ? 1 : 2]; + return n; +} |