From c304a68e41f2a529b635106a384ecbf225f9abd2 Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Sat, 2 Jan 2021 16:03:41 +0100 Subject: [PATCH] Free datastructures pointing to CFG after parsing * cp-tree.h (cp_tree_c_finish_parsing): Declare. * decl2.c (c_parse_final_cleanups): Call cp_tree_c_finish_parsing. * tree.c (cp_tree_c_finish_parsing): New function. --- gcc/cp/cp-tree.h | 2 ++ gcc/cp/decl2.c | 1 + gcc/cp/tree.c | 9 +++++++++ 3 files changed, 12 insertions(+) diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h index fc6a7898475..102f6e1464a 100644 --- a/gcc/cp/cp-tree.h +++ b/gcc/cp/cp-tree.h @@ -8238,6 +8238,8 @@ struct uid_sensitive_constexpr_evaluation_checker bool evaluation_restricted_p () const; }; +void cp_tree_c_finish_parsing (); + /* In cp-ubsan.c */ extern void cp_ubsan_maybe_instrument_member_call (tree); extern void cp_ubsan_instrument_member_accesses (tree *); diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c index af88e7f5cab..8769ff51be9 100644 --- a/gcc/cp/decl2.c +++ b/gcc/cp/decl2.c @@ -5257,6 +5257,7 @@ c_parse_final_cleanups (void) perform_deferred_noexcept_checks (); fini_constexpr (); + cp_tree_c_finish_parsing (); clear_consteval_vfns (consteval_vtables); /* The entire file is now complete. If requested, dump everything diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c index 0584a7b725e..e1ad0acb1f9 100644 --- a/gcc/cp/tree.c +++ b/gcc/cp/tree.c @@ -5926,6 +5926,15 @@ maybe_warn_zero_as_null_pointer_constant (tree expr, location_t loc) return false; } +/* Release memory we no longer need after parsing. */ +void +cp_tree_c_finish_parsing () +{ + if (previous_class_level) + invalidate_class_lookup_cache (); + deleted_copy_types = NULL; +} + #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) /* Complain that some language-specific thing hanging off a tree node has been accessed improperly. */ -- 2.30.2