diff options
Diffstat (limited to 'gcc/ada/exp_ch7.adb')
| -rw-r--r-- | gcc/ada/exp_ch7.adb | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/gcc/ada/exp_ch7.adb b/gcc/ada/exp_ch7.adb index 0c53f32..2d58f3b 100644 --- a/gcc/ada/exp_ch7.adb +++ b/gcc/ada/exp_ch7.adb @@ -109,18 +109,13 @@ package body Exp_Ch7 is -- pass the address of a constrained object as the target object for the -- function result. - -- By allocating tagged results in the secondary stack a number of + -- By always allocating tagged results in the secondary stack, a couple of -- implementation difficulties are avoided: - -- - If it is a dispatching function call, the computation of the size of - -- the result is possible but complex from the outside. + -- - If this is a dispatching function call, the computation of the size + -- of the result is possible but complex from the outside. - -- - If the returned type is controlled, the assignment of the returned - -- value to the anonymous object involves an Adjust, and we have no - -- easy way to access the anonymous object created by the back end. - - -- - If the returned type is class-wide, this is an unconstrained type - -- anyway. + -- - If the result type is class-wide, it is unconstrained anyway. -- Furthermore, the small loss in efficiency which is the result of this -- decision is not such a big deal because functions returning tagged types |