State cleanups from jit branch

gcc/ChangeLog:
	* cgraph.c (cgraph_c_finalize): New function.
	* cgraph.h (cgraph_c_finalize): New prototype.
	(cgraphunit_c_finalize): New prototype.
	* cgraphunit.c (first_analyzed): Move from analyze_functions
	to file-scope.
	(first_analyzed_var): Likewise.
	(analyze_functions): Move static variables into file-scope.
	(cgraphunit_c_finalize): New function.
	* diagnostic.c (diagnostic_finish): Free the memory for
	context->classify_diagnostic and context->printer, running the
	destructor for the latter.
	(bt_stop): Use toplev::main.
	* dwarf2out.c (dwarf2out_finalize): New function.
	* dwarf2out.h (dwarf2out_c_finalize): New prototype.
	* gcse.c (gcse_c_finalize): New function.
	* gcse.h (gcse_c_finalize): New prototype.
	* ggc-page.c (init_ggc): Make idempotent.
	* input.c (input_location): Initialize to UNKNOWN_LOCATION.
	* ipa-cp.c (ipa_cp_c_finalize): New function.
	* ipa-prop.h (ipa_cp_c_finalize): New prototype.
	* ipa-pure-const.c (function_insertion_hook_holder): Move to be
	a field of class pass_ipa_pure_const.
	(node_duplication_hook_holder): Likewise.
	(node_removal_hook_holder): Likewise.
	(register_hooks): Convert to method...
	(pass_ipa_pure_const::register_hooks): ...here, converting
	static variable init_p into...
	(pass_ipa_pure_const::init_p): ...new field.
	(pure_const_generate_summary): Update invocation of
	register_hooks to invoke as a method of current_pass.
	(pure_const_read_summary): Likewise.
	(propagate): Convert to...
	(pass_ipa_pure_const::execute): ...method.
	* ipa-reference.c (ipa_init): Move static bool init_p from here
	to...
	(ipa_init_p): New file-scope variable, so that it can be reset
	when repeatedly invoking the compiler within one process by...
	(ipa_reference_c_finalize): New function.
	* ipa-reference.h (ipa_reference_c_finalize): New.
	* main.c (main): Replace invocation of toplev_main with
	construction of a toplev instance, and call its "main" method.
	* params.c (global_init_params): Add an assert that
	params_finished is false.
	(params_c_finalize): New.
	* params.h (params_c_finalize): New.
	* passes.c (execute_ipa_summary_passes): Set "current_pass" before
	invoking generate_summary, for the benefit of pass_ipa_pure_const.
	(ipa_write_summaries_2): Assign "pass" to "current_pass" global
	before calling write_summary hook.
	(ipa_write_optimization_summaries_1): Likewise when calling
	write_optimization_summary hook.
	(ipa_read_summaries_1): Likewise for read_summary hook.
	(ipa_read_optimization_summaries_1): Likewise for
	read_optimization_summary hook.
	(execute_ipa_stmt_fixups): Likewise.
	* stringpool.c (init_stringpool): Clean up if we're called more
	than once.
	* timevar.c (timevar_init): Ignore repeated calls.
	* toplev.c: Include "dwarf2out.h", "ipa-reference.h", "gcse.h",
	"ipa-prop.h".
	(general_init): Reset "input_location" to UNKNOWN_LOCATION.
	(initialize_rtl): Move static local "initialized_once"
	into file scope, and rename to...
	(rtl_initialized): New variable.
	(do_compile): Move timevar initialization from here to
	toplev::start_timevars.
	(toplev::toplev, toplev::~toplev, toplev::start_timevars,
	toplev::finalize): New functions.
	(toplev_main): Rename to...
	(toplev::main): ...this.
	* toplev.h (class toplev): New class.

From-SVN: r216522

1 files changed, 86 insertions, 0 deletions

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 8c65176..a87f9c0 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -24619,4 +24619,90 @@ dwarf2out_finish (const char *filename)
     output_indirect_strings ();
 }
 
+/* Reset all state within dwarf2out.c so that we can rerun the compiler
+   within the same process.  For use by toplev::finalize.  */
+
+void
+dwarf2out_c_finalize (void)
+{
+  last_var_location_insn = NULL;
+  cached_next_real_insn = NULL;
+  used_rtx_array = NULL;
+  incomplete_types = NULL;
+  decl_scope_table = NULL;
+  debug_info_section = NULL;
+  debug_skeleton_info_section = NULL;
+  debug_abbrev_section = NULL;
+  debug_skeleton_abbrev_section = NULL;
+  debug_aranges_section = NULL;
+  debug_addr_section = NULL;
+  debug_macinfo_section = NULL;
+  debug_line_section = NULL;
+  debug_skeleton_line_section = NULL;
+  debug_loc_section = NULL;
+  debug_pubnames_section = NULL;
+  debug_pubtypes_section = NULL;
+  debug_str_section = NULL;
+  debug_str_dwo_section = NULL;
+  debug_str_offsets_section = NULL;
+  debug_ranges_section = NULL;
+  debug_frame_section = NULL;
+  fde_vec = NULL;
+  debug_str_hash = NULL;
+  skeleton_debug_str_hash = NULL;
+  dw2_string_counter = 0;
+  have_multiple_function_sections = false;
+  text_section_used = false;
+  cold_text_section_used = false;
+  cold_text_section = NULL;
+  current_unit_personality = NULL;
+
+  deferred_locations_list = NULL;
+
+  next_die_offset = 0;
+  single_comp_unit_die = NULL;
+  comdat_type_list = NULL;
+  limbo_die_list = NULL;
+  deferred_asm_name = NULL;
+  file_table = NULL;
+  decl_die_table = NULL;
+  common_block_die_table = NULL;
+  decl_loc_table = NULL;
+  call_arg_locations = NULL;
+  call_arg_loc_last = NULL;
+  call_site_count = -1;
+  tail_call_site_count = -1;
+  //block_map = NULL;
+  cached_dw_loc_list_table = NULL;
+  abbrev_die_table = NULL;
+  abbrev_die_table_allocated = 0;
+  abbrev_die_table_in_use = 0;
+  line_info_label_num = 0;
+  cur_line_info_table = NULL;
+  text_section_line_info = NULL;
+  cold_text_section_line_info = NULL;
+  separate_line_info = NULL;
+  info_section_emitted = false;
+  pubname_table = NULL;
+  pubtype_table = NULL;
+  macinfo_table = NULL;
+  ranges_table = NULL;
+  ranges_table_allocated = 0;
+  ranges_table_in_use = 0;
+  ranges_by_label = 0;
+  ranges_by_label_allocated = 0;
+  ranges_by_label_in_use = 0;
+  have_location_lists = false;
+  loclabel_num = 0;
+  poc_label_num = 0;
+  last_emitted_file = NULL;
+  label_num = 0;
+  file_table_last_lookup = NULL;
+  tmpl_value_parm_die_table = NULL;
+  generic_type_instances = NULL;
+  frame_pointer_fb_offset = 0;
+  frame_pointer_fb_offset_valid = false;
+  base_types.release ();
+}
+
 #include "gt-dwarf2out.h"