summaryrefslogtreecommitdiff
path: root/gcc/ada/gcc-interface/decl.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/ada/gcc-interface/decl.c')
-rw-r--r--gcc/ada/gcc-interface/decl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/ada/gcc-interface/decl.c b/gcc/ada/gcc-interface/decl.c
index c3774f2a6ba..89a6a2ea2cc 100644
--- a/gcc/ada/gcc-interface/decl.c
+++ b/gcc/ada/gcc-interface/decl.c
@@ -5587,6 +5587,10 @@ gnat_to_gnu_param (Entity_Id gnat_param, Mechanism_Type mech,
DECL_BY_COMPONENT_PTR_P (gnu_param) = by_component_ptr;
DECL_BY_DESCRIPTOR_P (gnu_param) = (mech == By_Descriptor ||
mech == By_Short_Descriptor);
+ /* Note that, in case of a parameter passed by double reference, the
+ DECL_POINTS_TO_READONLY_P flag is meant for the second reference.
+ The first reference always points to read-only, as it points to
+ the second reference, i.e. the reference to the actual parameter. */
DECL_POINTS_TO_READONLY_P (gnu_param)
= (ro_param && (by_ref || by_component_ptr));
DECL_CAN_NEVER_BE_NULL_P (gnu_param) = Can_Never_Be_Null (gnat_param);