diff options
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gnat.dg/lto23.adb | 20 | ||||
| -rw-r--r-- | gcc/tree.c | 27 |
4 files changed, 45 insertions, 15 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 82a1bfb..f4d1b47 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2019-12-09 Eric Botcazou <ebotcazou@adacore.com> + + * tree.c (build_array_type_1): Add SET_CANONICAL parameter and compute + TYPE_CANONICAL from the element type only if it is true. Remove a few + obsolete lines and adjust recursive call. + (fld_process_array_type): Adjust call to build_array_type_1. + (build_array_type): Likewise. + (build_nonshared_array_type): Likewise. + 2019-12-09 Andrew Stubbs <ams@codesourcery.com> * config/gcn/gcn-valu.md (gather<mode>_insn_1offset<exec>): Change diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 6cda5be..088718e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2019-12-09 Eric Botcazou <ebotcazou@adacore.com> + + * gnat.dg/lto23.adb: New test. + 2019-12-09 Joseph Myers <joseph@codesourcery.com> PR middle-end/91226 diff --git a/gcc/testsuite/gnat.dg/lto23.adb b/gcc/testsuite/gnat.dg/lto23.adb new file mode 100644 index 0000000..88615c9 --- /dev/null +++ b/gcc/testsuite/gnat.dg/lto23.adb @@ -0,0 +1,20 @@ +-- { dg-do compile }
+-- { dg-options "-flto" { target lto } }
+
+procedure Lto23 (N : Natural) is
+
+ type Root is tagged null record;
+
+ type Vec is array (Positive range <>) of Root;
+
+ type Rec is record
+ V : Vec (1 .. N);
+ end record;
+
+ type Arr is array (Positive range <>) of Rec;
+
+ A : Arr (1 .. 4);
+
+begin
+ null;
+end;
@@ -266,7 +266,7 @@ static void print_type_hash_statistics (void); static void print_debug_expr_statistics (void); static void print_value_expr_statistics (void); -static tree build_array_type_1 (tree, tree, bool, bool); +static tree build_array_type_1 (tree, tree, bool, bool, bool); tree global_trees[TI_MAX]; tree integer_types[itk_none]; @@ -5303,8 +5303,9 @@ fld_process_array_type (tree t, tree t2, hash_map<tree, tree> *map, = map->get_or_insert (t, &existed); if (!existed) { - array = build_array_type_1 (t2, TYPE_DOMAIN (t), - TYPE_TYPELESS_STORAGE (t), false); + array + = build_array_type_1 (t2, TYPE_DOMAIN (t), TYPE_TYPELESS_STORAGE (t), + false, false); TYPE_CANONICAL (array) = TYPE_CANONICAL (t); if (!fld->pset.add (array)) add_tree_to_fld_list (array, fld); @@ -8155,11 +8156,12 @@ subrange_type_for_debug_p (const_tree type, tree *lowval, tree *highval) /* Construct, lay out and return the type of arrays of elements with ELT_TYPE and number of elements specified by the range of values of INDEX_TYPE. If TYPELESS_STORAGE is true, TYPE_TYPELESS_STORAGE flag is set on the type. - If SHARED is true, reuse such a type that has already been constructed. */ + If SHARED is true, reuse such a type that has already been constructed. + If SET_CANONICAL is true, compute TYPE_CANONICAL from the element type. */ static tree build_array_type_1 (tree elt_type, tree index_type, bool typeless_storage, - bool shared) + bool shared, bool set_canonical) { tree t; @@ -8176,19 +8178,13 @@ build_array_type_1 (tree elt_type, tree index_type, bool typeless_storage, TYPE_TYPELESS_STORAGE (t) = typeless_storage; layout_type (t); - /* If the element type is incomplete at this point we get marked for - structural equality. Do not record these types in the canonical - type hashtable. */ - if (TYPE_STRUCTURAL_EQUALITY_P (t)) - return t; - if (shared) { hashval_t hash = type_hash_canon_hash (t); t = type_hash_canon (hash, t); } - if (TYPE_CANONICAL (t) == t) + if (TYPE_CANONICAL (t) == t && set_canonical) { if (TYPE_STRUCTURAL_EQUALITY_P (elt_type) || (index_type && TYPE_STRUCTURAL_EQUALITY_P (index_type)) @@ -8200,7 +8196,7 @@ build_array_type_1 (tree elt_type, tree index_type, bool typeless_storage, = build_array_type_1 (TYPE_CANONICAL (elt_type), index_type ? TYPE_CANONICAL (index_type) : NULL_TREE, - typeless_storage, shared); + typeless_storage, shared, set_canonical); } return t; @@ -8211,7 +8207,8 @@ build_array_type_1 (tree elt_type, tree index_type, bool typeless_storage, tree build_array_type (tree elt_type, tree index_type, bool typeless_storage) { - return build_array_type_1 (elt_type, index_type, typeless_storage, true); + return + build_array_type_1 (elt_type, index_type, typeless_storage, true, true); } /* Wrapper around build_array_type_1 with SHARED set to false. */ @@ -8219,7 +8216,7 @@ build_array_type (tree elt_type, tree index_type, bool typeless_storage) tree build_nonshared_array_type (tree elt_type, tree index_type) { - return build_array_type_1 (elt_type, index_type, false, false); + return build_array_type_1 (elt_type, index_type, false, false, true); } /* Return a representation of ELT_TYPE[NELTS], using indices of type |