From 571d0450b294af66338c911c5205b4cbf20902ad Mon Sep 17 00:00:00 2001 From: Eric Botcazou <ebotcazou@adacore.com> Date: Tue, 20 Aug 2024 17:40:41 +0200 Subject: [PATCH] ada: Diagnose too large size clause on floating-point type The problem is that the size clause changes the floating-point format used for the type, but it must not when this format is the widest format that is supported in hardware on the target. Instead a padding type must be built and the associated warning given. gcc/ada/ * gcc-interface/decl.cc (gnat_to_gnu_entity): Cap the Esize of a floating-point type to the size of the widest format supported in hardware if it is explicity defined. --- gcc/ada/gcc-interface/decl.cc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/gcc/ada/gcc-interface/decl.cc b/gcc/ada/gcc-interface/decl.cc index d7c17238bbc0..398e01521a33 100644 --- a/gcc/ada/gcc-interface/decl.cc +++ b/gcc/ada/gcc-interface/decl.cc @@ -521,8 +521,12 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, bool definition) esize = UI_To_Int (Esize (gnat_entity)); if (IN (kind, Float_Kind)) +#ifdef WIDEST_HARDWARE_FP_SIZE + max_esize = fp_prec_to_size (WIDEST_HARDWARE_FP_SIZE); +#else max_esize = fp_prec_to_size (TYPE_PRECISION (long_double_type_node)); +#endif else if (IN (kind, Access_Kind)) max_esize = POINTER_SIZE * 2; else -- GitLab