diff options
Diffstat (limited to 'gcc/cp/constexpr.cc')
| -rw-r--r-- | gcc/cp/constexpr.cc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/cp/constexpr.cc b/gcc/cp/constexpr.cc index 558ef6e..016e3db 100644 --- a/gcc/cp/constexpr.cc +++ b/gcc/cp/constexpr.cc @@ -3009,6 +3009,9 @@ cxx_eval_internal_function (const constexpr_ctx *ctx, tree t, vc_prvalue, non_constant_p, overflow_p, jump_target); + case IFN_DEFERRED_INIT: + return build_clobber (TREE_TYPE (t), CLOBBER_OBJECT_BEGIN); + case IFN_VEC_CONVERT: { tree arg = cxx_eval_constant_expression (ctx, CALL_EXPR_ARG (t, 0), @@ -7498,6 +7501,13 @@ cxx_eval_store_expression (const constexpr_ctx *ctx, tree t, bool preeval = SCALAR_TYPE_P (type) || TREE_CODE (t) == MODIFY_EXPR; if (preeval && !TREE_CLOBBER_P (init)) { + /* Ignore var = .DEFERRED_INIT (); for now, until PR121965 is fixed. */ + if (flag_auto_var_init > AUTO_INIT_UNINITIALIZED + && TREE_CODE (init) == CALL_EXPR + && CALL_EXPR_FN (init) == NULL_TREE + && CALL_EXPR_IFN (init) == IFN_DEFERRED_INIT) + return void_node; + /* Evaluate the value to be stored without knowing what object it will be stored in, so that any side-effects happen first. */ if (!SCALAR_TYPE_P (type)) |