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| author | Jan Hubicka <hubicka@ucw.cz> | 2015-11-22 00:59:49 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2015-11-21 23:59:49 +0000 |
| commit | f85d24870891e785a86e1c394ca559953b262d2d (patch) | |
| tree | 8ce584973badca7655229ceeb55de6f4eed7e8d7 /gcc/lto | |
| parent | feb391fc5d47f7bd3860fe192a7a73531cbde77f (diff) | |
| download | gcc-f85d24870891e785a86e1c394ca559953b262d2d.zip gcc-f85d24870891e785a86e1c394ca559953b262d2d.tar.gz gcc-f85d24870891e785a86e1c394ca559953b262d2d.tar.bz2 | |
lto.c (iterative_hash_canonical_type): Always recurse for pointers.
* lto.c (iterative_hash_canonical_type): Always recurse for pointers.
(gimple_register_canonical_type_1): Check that pointers do not get
canonical types.
(gimple_register_canonical_type): Do not register pointers.
* tree.c (build_pointer_type_for_mode,build_reference_type_for_mode):
In LTO we do not compute TYPE_CANONICAL of pointers.
(gimple_canonical_types_compatible_p): Improve coments; sanity check
that pointers do not have canonical type that would make us believe
they are different.
* alias.c (get_alias_set): Do structural type equality on pointers;
enable pointer path for LTO; also glob pointer to vector with pointer
to vector element; glob pointers and references for LTO; do more strict
sanity checking about build_pointer_type returning the canonical type
which is also the main variant.
(record_component_aliases): When component type is pointer and we
do LTO; record void_type_node alias set.
From-SVN: r230715
Diffstat (limited to 'gcc/lto')
| -rw-r--r-- | gcc/lto/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/lto/lto.c | 13 |
2 files changed, 18 insertions, 4 deletions
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog index 49adea6..4105337 100644 --- a/gcc/lto/ChangeLog +++ b/gcc/lto/ChangeLog @@ -1,4 +1,11 @@ -2015-11-11 Jan Hubicka <hubicka@ucw.cz> +2015-11-21 Jan Hubicka <hubicka@ucw.cz> + + * lto.c (iterative_hash_canonical_type): Always recurse for pointers. + (gimple_register_canonical_type_1): Check that pointers do not get + canonical types. + (gimple_register_canonical_type): Do not register pointers. + +2015-11-21 Jan Hubicka <hubicka@ucw.cz> * lto-symtab.c (warn_type_compatibility_p): Do not set ODR mismatch flag for types that are not ODR; fix loop walking parameters. diff --git a/gcc/lto/lto.c b/gcc/lto/lto.c index 36138e8..2661491 100644 --- a/gcc/lto/lto.c +++ b/gcc/lto/lto.c @@ -388,8 +388,13 @@ iterative_hash_canonical_type (tree type, inchash::hash &hstate) /* All type variants have same TYPE_CANONICAL. */ type = TYPE_MAIN_VARIANT (type); + + /* We do not compute TYPE_CANONICAl of POINTER_TYPE because the aliasing + code never use it anyway. */ + if (POINTER_TYPE_P (type)) + v = hash_canonical_type (type); /* An already processed type. */ - if (TYPE_CANONICAL (type)) + else if (TYPE_CANONICAL (type)) { type = TYPE_CANONICAL (type); v = gimple_canonical_type_hash (type); @@ -437,7 +442,9 @@ gimple_register_canonical_type_1 (tree t, hashval_t hash) { void **slot; - gcc_checking_assert (TYPE_P (t) && !TYPE_CANONICAL (t)); + gcc_checking_assert (TYPE_P (t) && !TYPE_CANONICAL (t) + && type_with_alias_set_p (t) + && !POINTER_TYPE_P (t)); slot = htab_find_slot_with_hash (gimple_canonical_types, t, hash, INSERT); if (*slot) @@ -470,7 +477,7 @@ gimple_register_canonical_type_1 (tree t, hashval_t hash) static void gimple_register_canonical_type (tree t) { - if (TYPE_CANONICAL (t) || !type_with_alias_set_p (t)) + if (TYPE_CANONICAL (t) || !type_with_alias_set_p (t) || POINTER_TYPE_P (t)) return; /* Canonical types are same among all complete variants. */ |