diff options
Diffstat (limited to 'gcc/cp/cvt.c')
| -rw-r--r-- | gcc/cp/cvt.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/cp/cvt.c b/gcc/cp/cvt.c index 902372e..710bc74 100644 --- a/gcc/cp/cvt.c +++ b/gcc/cp/cvt.c @@ -864,14 +864,17 @@ convert_to_void (tree expr, const char *implicit) int is_volatile = TYPE_VOLATILE (type); int is_complete = COMPLETE_TYPE_P (complete_type (type)); + /* Can't load the value if we don't know the type. */ if (is_volatile && !is_complete) warning (0, "object of incomplete type %qT will not be accessed in %s", type, implicit ? implicit : "void context"); - else if (is_reference && is_volatile) + /* Don't load the value if this is an implicit dereference, or if + the type needs to be handled by ctors/dtors. */ + else if (is_volatile && (is_reference || TREE_ADDRESSABLE (type))) warning (0, "object of type %qT will not be accessed in %s", TREE_TYPE (TREE_OPERAND (expr, 0)), implicit ? implicit : "void context"); - if (is_reference || !is_volatile || !is_complete) + if (is_reference || !is_volatile || !is_complete || TREE_ADDRESSABLE (type)) expr = TREE_OPERAND (expr, 0); break; |