| /* Support code for handling the various dump_* calls in dumpfile.h |
| Copyright (C) 2018-2021 Free Software Foundation, Inc. |
| Contributed by David Malcolm <dmalcolm@redhat.com>. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| |
| #ifndef GCC_DUMP_CONTEXT_H |
| #define GCC_DUMP_CONTEXT_H 1 |
| |
| #include "dumpfile.h" |
| #include "pretty-print.h" |
| #include "selftest.h" |
| #include "optinfo.h" |
| |
| class optrecord_json_writer; |
| namespace selftest { class temp_dump_context; } |
| class debug_dump_context; |
| |
| /* A class for handling the various dump_* calls. |
| |
| In particular, this class has responsibility for consolidating |
| the "dump_*" calls into optinfo instances (delimited by "dump_*_loc" |
| calls), and emitting them. |
| |
| Putting this in a class (rather than as global state) allows |
| for selftesting of this code. */ |
| |
| class dump_context |
| { |
| friend class selftest::temp_dump_context; |
| friend class debug_dump_context; |
| |
| public: |
| static dump_context &get () { return *s_current; } |
| |
| ~dump_context (); |
| |
| void refresh_dumps_are_enabled (); |
| |
| void dump_loc (const dump_metadata_t &metadata, |
| const dump_user_location_t &loc); |
| void dump_loc_immediate (dump_flags_t dump_kind, |
| const dump_user_location_t &loc); |
| |
| void dump_gimple_stmt (const dump_metadata_t &metadata, |
| dump_flags_t extra_dump_flags, |
| gimple *gs, int spc); |
| |
| void dump_gimple_stmt_loc (const dump_metadata_t &metadata, |
| const dump_user_location_t &loc, |
| dump_flags_t extra_dump_flags, |
| gimple *gs, int spc); |
| |
| void dump_gimple_expr (const dump_metadata_t &metadata, |
| dump_flags_t extra_dump_flags, |
| gimple *gs, int spc); |
| |
| void dump_gimple_expr_loc (const dump_metadata_t &metadata, |
| const dump_user_location_t &loc, |
| dump_flags_t extra_dump_flags, |
| gimple *gs, |
| int spc); |
| |
| void dump_generic_expr (const dump_metadata_t &metadata, |
| dump_flags_t extra_dump_flags, |
| tree t); |
| |
| void dump_generic_expr_loc (const dump_metadata_t &metadata, |
| const dump_user_location_t &loc, |
| dump_flags_t extra_dump_flags, |
| tree t); |
| |
| void dump_printf_va (const dump_metadata_t &metadata, const char *format, |
| va_list *ap) ATTRIBUTE_GCC_DUMP_PRINTF (3, 0); |
| |
| void dump_printf_loc_va (const dump_metadata_t &metadata, |
| const dump_user_location_t &loc, |
| const char *format, va_list *ap) |
| ATTRIBUTE_GCC_DUMP_PRINTF (4, 0); |
| |
| template<unsigned int N, typename C> |
| void dump_dec (const dump_metadata_t &metadata, const poly_int<N, C> &value); |
| |
| void dump_symtab_node (const dump_metadata_t &metadata, symtab_node *node); |
| |
| /* Managing nested scopes. */ |
| unsigned int get_scope_depth () const; |
| void begin_scope (const char *name, |
| const dump_user_location_t &user_location, |
| const dump_impl_location_t &impl_location); |
| void end_scope (); |
| |
| /* Should optinfo instances be created? |
| All creation of optinfos should be guarded by this predicate. |
| Return true if any optinfo destinations are active. */ |
| bool optinfo_enabled_p () const; |
| |
| bool optimization_records_enabled_p () const |
| { |
| return m_json_writer != NULL; |
| } |
| void set_json_writer (optrecord_json_writer *writer); |
| void finish_any_json_writer (); |
| |
| void end_any_optinfo (); |
| |
| void emit_optinfo (const optinfo *info); |
| void emit_item (optinfo_item *item, dump_flags_t dump_kind); |
| |
| bool apply_dump_filter_p (dump_flags_t dump_kind, dump_flags_t filter) const; |
| |
| private: |
| optinfo &ensure_pending_optinfo (const dump_metadata_t &metadata); |
| optinfo &begin_next_optinfo (const dump_metadata_t &metadata, |
| const dump_user_location_t &loc); |
| |
| /* The current nesting depth of dump scopes, for showing nesting |
| via indentation). */ |
| unsigned int m_scope_depth; |
| |
| /* The optinfo currently being accumulated since the last dump_*_loc call, |
| if any. */ |
| optinfo *m_pending; |
| |
| /* If -fsave-optimization-record is enabled, the heap-allocated JSON writer |
| instance, otherwise NULL. */ |
| optrecord_json_writer *m_json_writer; |
| |
| /* For use in selftests: if non-NULL, then items are to be printed |
| to this, using the given flags. */ |
| pretty_printer *m_test_pp; |
| dump_flags_t m_test_pp_flags; |
| |
| /* The currently active dump_context, for use by the dump_* API calls. */ |
| static dump_context *s_current; |
| |
| /* The default active context. */ |
| static dump_context s_default; |
| }; |
| |
| /* A subclass of pretty_printer for implementing dump_context::dump_printf_va. |
| In particular, the formatted chunks are captured as optinfo_item instances, |
| thus retaining metadata about the entities being dumped (e.g. source |
| locations), rather than just as plain text. */ |
| |
| class dump_pretty_printer : public pretty_printer |
| { |
| public: |
| dump_pretty_printer (dump_context *context, dump_flags_t dump_kind); |
| |
| void emit_items (optinfo *dest); |
| |
| private: |
| /* Information on an optinfo_item that was generated during phase 2 of |
| formatting. */ |
| class stashed_item |
| { |
| public: |
| stashed_item (const char **buffer_ptr_, optinfo_item *item_) |
| : buffer_ptr (buffer_ptr_), item (item_) {} |
| const char **buffer_ptr; |
| optinfo_item *item; |
| }; |
| |
| static bool format_decoder_cb (pretty_printer *pp, text_info *text, |
| const char *spec, int /*precision*/, |
| bool /*wide*/, bool /*set_locus*/, |
| bool /*verbose*/, bool */*quoted*/, |
| const char **buffer_ptr); |
| |
| bool decode_format (text_info *text, const char *spec, |
| const char **buffer_ptr); |
| |
| void stash_item (const char **buffer_ptr, optinfo_item *item); |
| |
| void emit_any_pending_textual_chunks (optinfo *dest); |
| |
| void emit_item (optinfo_item *item, optinfo *dest); |
| |
| dump_context *m_context; |
| dump_flags_t m_dump_kind; |
| auto_vec<stashed_item> m_stashed_items; |
| }; |
| |
| /* An RAII-style class for use in debug dumpers for temporarily using a |
| different dump_context. It enables full details and outputs to |
| stderr instead of the currently active dump_file. */ |
| |
| class debug_dump_context |
| { |
| public: |
| debug_dump_context (); |
| ~debug_dump_context (); |
| |
| private: |
| dump_context m_context; |
| dump_context *m_saved; |
| dump_flags_t m_saved_flags; |
| dump_flags_t m_saved_pflags; |
| FILE *m_saved_file; |
| }; |
| |
| |
| #if CHECKING_P |
| |
| namespace selftest { |
| |
| /* An RAII-style class for use in selftests for temporarily using a different |
| dump_context. */ |
| |
| class temp_dump_context |
| { |
| public: |
| temp_dump_context (bool forcibly_enable_optinfo, |
| bool forcibly_enable_dumping, |
| dump_flags_t test_pp_flags); |
| ~temp_dump_context (); |
| |
| /* Support for selftests. */ |
| optinfo *get_pending_optinfo () const { return m_context.m_pending; } |
| const char *get_dumped_text (); |
| |
| private: |
| pretty_printer m_pp; |
| dump_context m_context; |
| dump_context *m_saved; |
| }; |
| |
| /* Implementation detail of ASSERT_DUMPED_TEXT_EQ. */ |
| |
| extern void verify_dumped_text (const location &loc, |
| temp_dump_context *context, |
| const char *expected_text); |
| |
| /* Verify that the text dumped so far in CONTEXT equals |
| EXPECTED_TEXT. |
| As a side-effect, the internal buffer is 0-terminated. */ |
| |
| #define ASSERT_DUMPED_TEXT_EQ(CONTEXT, EXPECTED_TEXT) \ |
| SELFTEST_BEGIN_STMT \ |
| verify_dumped_text (SELFTEST_LOCATION, &(CONTEXT), (EXPECTED_TEXT)); \ |
| SELFTEST_END_STMT |
| |
| |
| /* Verify that ITEM has the expected values. */ |
| |
| void |
| verify_item (const location &loc, |
| const optinfo_item *item, |
| enum optinfo_item_kind expected_kind, |
| location_t expected_location, |
| const char *expected_text); |
| |
| /* Verify that ITEM is a text item, with EXPECTED_TEXT. */ |
| |
| #define ASSERT_IS_TEXT(ITEM, EXPECTED_TEXT) \ |
| SELFTEST_BEGIN_STMT \ |
| verify_item (SELFTEST_LOCATION, (ITEM), OPTINFO_ITEM_KIND_TEXT, \ |
| UNKNOWN_LOCATION, (EXPECTED_TEXT)); \ |
| SELFTEST_END_STMT |
| |
| /* Verify that ITEM is a tree item, with the expected values. */ |
| |
| #define ASSERT_IS_TREE(ITEM, EXPECTED_LOCATION, EXPECTED_TEXT) \ |
| SELFTEST_BEGIN_STMT \ |
| verify_item (SELFTEST_LOCATION, (ITEM), OPTINFO_ITEM_KIND_TREE, \ |
| (EXPECTED_LOCATION), (EXPECTED_TEXT)); \ |
| SELFTEST_END_STMT |
| |
| /* Verify that ITEM is a gimple item, with the expected values. */ |
| |
| #define ASSERT_IS_GIMPLE(ITEM, EXPECTED_LOCATION, EXPECTED_TEXT) \ |
| SELFTEST_BEGIN_STMT \ |
| verify_item (SELFTEST_LOCATION, (ITEM), OPTINFO_ITEM_KIND_GIMPLE, \ |
| (EXPECTED_LOCATION), (EXPECTED_TEXT)); \ |
| SELFTEST_END_STMT |
| |
| /* Verify that ITEM is a symtab node, with the expected values. */ |
| |
| #define ASSERT_IS_SYMTAB_NODE(ITEM, EXPECTED_LOCATION, EXPECTED_TEXT) \ |
| SELFTEST_BEGIN_STMT \ |
| verify_item (SELFTEST_LOCATION, (ITEM), OPTINFO_ITEM_KIND_SYMTAB_NODE, \ |
| (EXPECTED_LOCATION), (EXPECTED_TEXT)); \ |
| SELFTEST_END_STMT |
| |
| } // namespace selftest |
| |
| #endif /* CHECKING_P */ |
| |
| #endif /* GCC_DUMP_CONTEXT_H */ |