#include "intl.h"
#include "ggc.h"
#include "graph.h"
-#include "loop.h"
#include "regs.h"
#include "timevar.h"
#include "diagnostic.h"
#include "coverage.h"
#include "value-prof.h"
#include "alloc-pool.h"
+#include "tree-pass.h"
+#include "tree-dump.h"
#if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO)
#include "dwarf2out.h"
#endif
-#if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO)
+#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
#include "dbxout.h"
#endif
#define DUMPFILE_FORMAT ".%02d."
#endif
-/* Describes a dump file. */
-
-struct dump_file_info
-{
- /* The unique extension to apply, e.g. ".jump". */
- const char *const extension;
-
- /* The -d<c> character that enables this dump file. */
- char const debug_switch;
-
- /* True if there is a corresponding graph dump file. */
- char const graph_dump_p;
-
- /* True if the user selected this dump. */
- char enabled;
-
- /* True if the files have been initialized (ie truncated). */
- char initialized;
-};
-
-/* Enumerate the extant dump files. */
-
-enum dump_file_index
-{
- DFI_cgraph,
- DFI_rtl,
- DFI_sibling,
- DFI_eh,
- DFI_jump,
- DFI_null,
- DFI_cse,
- DFI_addressof,
- DFI_gcse,
- DFI_loop,
- DFI_bypass,
- DFI_cfg,
- DFI_bp,
- DFI_vpt,
- DFI_ce1,
- DFI_tracer,
- DFI_loop2,
- DFI_web,
- DFI_cse2,
- DFI_life,
- DFI_combine,
- DFI_ce2,
- DFI_regmove,
- DFI_sched,
- DFI_lreg,
- DFI_greg,
- DFI_postreload,
- DFI_gcse2,
- DFI_flow2,
- DFI_peephole2,
- DFI_ce3,
- DFI_rnreg,
- DFI_bbro,
- DFI_branch_target_load,
- DFI_sched2,
- DFI_stack,
- DFI_vartrack,
- DFI_mach,
- DFI_dbr,
- DFI_MAX
-};
-
-/* Describes all the dump files. Should be kept in order of the
- pass and in sync with dump_file_index above.
-
- Remaining -d letters:
-
- " e m q "
- " K O Q WXY "
-*/
-
-static struct dump_file_info dump_file_tbl[DFI_MAX] =
-{
- { "cgraph", 'U', 0, 0, 0 },
- { "rtl", 'r', 0, 0, 0 },
- { "sibling", 'i', 0, 0, 0 },
- { "eh", 'h', 0, 0, 0 },
- { "jump", 'j', 0, 0, 0 },
- { "null", 'u', 0, 0, 0 },
- { "cse", 's', 0, 0, 0 },
- { "addressof", 'F', 0, 0, 0 },
- { "gcse", 'G', 1, 0, 0 },
- { "loop", 'L', 1, 0, 0 },
- { "bypass", 'G', 1, 0, 0 }, /* Yes, duplicate enable switch. */
- { "cfg", 'f', 1, 0, 0 },
- { "bp", 'b', 1, 0, 0 },
- { "vpt", 'V', 1, 0, 0 },
- { "ce1", 'C', 1, 0, 0 },
- { "tracer", 'T', 1, 0, 0 },
- { "loop2", 'L', 1, 0, 0 },
- { "web", 'Z', 0, 0, 0 },
- { "cse2", 't', 1, 0, 0 },
- { "life", 'f', 1, 0, 0 }, /* Yes, duplicate enable switch. */
- { "combine", 'c', 1, 0, 0 },
- { "ce2", 'C', 1, 0, 0 },
- { "regmove", 'N', 1, 0, 0 },
- { "sched", 'S', 1, 0, 0 },
- { "lreg", 'l', 1, 0, 0 },
- { "greg", 'g', 1, 0, 0 },
- { "postreload", 'o', 1, 0, 0 },
- { "gcse2", 'J', 0, 0, 0 },
- { "flow2", 'w', 1, 0, 0 },
- { "peephole2", 'z', 1, 0, 0 },
- { "ce3", 'E', 1, 0, 0 },
- { "rnreg", 'n', 1, 0, 0 },
- { "bbro", 'B', 1, 0, 0 },
- { "btl", 'd', 1, 0, 0 }, /* Yes, duplicate enable switch. */
- { "sched2", 'R', 1, 0, 0 },
- { "stack", 'k', 1, 0, 0 },
- { "vartrack", 'V', 1, 0, 0 }, /* Yes, duplicate enable switch. */
- { "mach", 'M', 1, 0, 0 },
- { "dbr", 'd', 0, 0, 0 },
-};
+static int initializing_dump = 0;
/* Routine to open a dump file. Return true if the dump file is enabled. */
static int
-open_dump_file (enum dump_file_index index, tree decl)
+open_dump_file (enum tree_dump_index index, tree decl)
{
- char *dump_name;
- const char *open_arg;
- char seq[16];
-
- if (! dump_file_tbl[index].enabled)
+ if (! dump_enabled_p (index))
return 0;
timevar_push (TV_DUMP);
- if (dump_file != NULL)
- fclose (dump_file);
- sprintf (seq, DUMPFILE_FORMAT, index);
-
- if (! dump_file_tbl[index].initialized)
- {
- /* If we've not initialized the files, do so now. */
- if (graph_dump_format != no_graph
- && dump_file_tbl[index].graph_dump_p)
- {
- dump_name = concat (seq, dump_file_tbl[index].extension, NULL);
- clean_graph_dump_file (dump_base_name, dump_name);
- free (dump_name);
- }
- dump_file_tbl[index].initialized = 1;
- open_arg = "w";
- }
- else
- open_arg = "a";
+ if (dump_file != NULL || dump_file_name != NULL)
+ abort ();
- dump_name = concat (dump_base_name, seq,
- dump_file_tbl[index].extension, NULL);
+ dump_file_name = get_dump_file_name (index);
+ initializing_dump = !dump_initialized_p (index);
+ dump_file = dump_begin (index, NULL);
- dump_file = fopen (dump_name, open_arg);
if (dump_file == NULL)
- fatal_error ("can't open %s: %m", dump_name);
-
- free (dump_name);
+ fatal_error ("can't open %s: %m", dump_file_name);
if (decl)
fprintf (dump_file, "\n;; Function %s%s\n\n",
/* Routine to close a dump file. */
static void
-close_dump_file (enum dump_file_index index,
+close_dump_file (enum tree_dump_index index,
void (*func) (FILE *, rtx),
rtx insns)
{
timevar_push (TV_DUMP);
if (insns
- && graph_dump_format != no_graph
- && dump_file_tbl[index].graph_dump_p)
+ && graph_dump_format != no_graph)
{
- char seq[16];
- char *suffix;
+ /* If we've not initialized the files, do so now. */
+ if (initializing_dump)
+ clean_graph_dump_file (dump_file_name);
- sprintf (seq, DUMPFILE_FORMAT, index);
- suffix = concat (seq, dump_file_tbl[index].extension, NULL);
- print_rtl_graph_with_bb (dump_base_name, suffix, insns);
- free (suffix);
+ print_rtl_graph_with_bb (dump_file_name, insns);
}
if (func && insns)
func (dump_file, insns);
- fflush (dump_file);
- fclose (dump_file);
+ dump_end (index, dump_file);
+ free ((char *) dump_file_name);
dump_file = NULL;
+ dump_file_name = NULL;
timevar_pop (TV_DUMP);
}
and TYPE_DECL nodes.
This does nothing for local (non-static) variables, unless the
- variable is a register variable with an ASMSPEC. In that case, or
- if the variable is not an automatic, it sets up the RTL and
- outputs any assembler code (label definition, storage allocation
- and initialization).
+ variable is a register variable with DECL_ASSEMBLER_NAME set. In
+ that case, or if the variable is not an automatic, it sets up the
+ RTL and outputs any assembler code (label definition, storage
+ allocation and initialization).
- DECL is the declaration. If ASMSPEC is nonzero, it specifies
- the assembler symbol name to be used. TOP_LEVEL is nonzero
+ DECL is the declaration. TOP_LEVEL is nonzero
if this declaration is not within a function. */
void
rest_of_decl_compilation (tree decl,
- const char *asmspec,
int top_level,
int at_end)
{
}
}
+ /* Can't defer this, because it needs to happen before any
+ later function definitions are processed. */
+ if (DECL_REGISTER (decl) && DECL_ASSEMBLER_NAME_SET_P (decl))
+ make_decl_rtl (decl);
+
/* Forward declarations for nested functions are not "external",
but we need to treat them as if they were. */
if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)
{
timevar_push (TV_VARCONST);
- if (asmspec)
- make_decl_rtl (decl, asmspec);
-
/* Don't output anything when a tentative file-scope definition
is seen. But at end of compilation, do output code for them.
&& !DECL_EXTERNAL (decl))
{
if (flag_unit_at_a_time && !cgraph_global_info_ready
- && TREE_CODE (decl) != FUNCTION_DECL && top_level)
+ && TREE_CODE (decl) != FUNCTION_DECL && top_level
+ /* If we defer processing of decls that have had their
+ DECL_RTL set above (say, in make_decl_rtl),
+ check_global_declarations() will clear it before
+ assemble_variable has a chance to act on it. This
+ would remove all traces of the register name in a
+ global register variable, for example. */
+ && !DECL_RTL_SET_P (decl))
cgraph_varpool_finalize_decl (decl);
else
assemble_variable (decl, top_level, at_end, 0);
timevar_pop (TV_VARCONST);
}
- else if (DECL_REGISTER (decl) && asmspec != 0)
- {
- if (decode_reg_name (asmspec) >= 0)
- {
- SET_DECL_RTL (decl, NULL_RTX);
- make_decl_rtl (decl, asmspec);
- }
- else
- {
- error ("invalid register name `%s' for register variable", asmspec);
- DECL_REGISTER (decl) = 0;
- if (!top_level)
- expand_decl (decl);
- }
- }
else if (TREE_CODE (decl) == TYPE_DECL)
{
timevar_push (TV_SYMOUT);
/* Turn the RTL into assembly. */
static void
-rest_of_handle_final (tree decl, rtx insns)
+rest_of_handle_final (void)
{
timevar_push (TV_FINAL);
{
/* Get the function's name, as described by its RTL. This may be
different from the DECL_NAME name used in the source file. */
- x = DECL_RTL (decl);
- if (GET_CODE (x) != MEM)
+ x = DECL_RTL (current_function_decl);
+ if (!MEM_P (x))
abort ();
x = XEXP (x, 0);
if (GET_CODE (x) != SYMBOL_REF)
abort ();
fnname = XSTR (x, 0);
- assemble_start_function (decl, fnname);
- final_start_function (insns, asm_out_file, optimize);
- final (insns, asm_out_file, optimize, 0);
+ assemble_start_function (current_function_decl, fnname);
+ final_start_function (get_insns (), asm_out_file, optimize);
+ final (get_insns (), asm_out_file, optimize, 0);
final_end_function ();
-#ifdef IA64_UNWIND_INFO
+#ifdef TARGET_UNWIND_INFO
/* ??? The IA-64 ".handlerdata" directive must be issued before
the ".endp" directive that closes the procedure descriptor. */
output_function_exception_table ();
#endif
- assemble_end_function (decl, fnname);
+ assemble_end_function (current_function_decl, fnname);
-#ifndef IA64_UNWIND_INFO
+#ifndef TARGET_UNWIND_INFO
/* Otherwise, it feels unclean to switch sections in the middle. */
output_function_exception_table ();
#endif
+ user_defined_section_attribute = false;
+
if (! quiet_flag)
fflush (asm_out_file);
/* Release all memory allocated by flow. */
- free_basic_block_vars (0);
+ free_basic_block_vars ();
/* Release all memory held by regsets now. */
regset_release_memory ();
}
- timevar_pop (TV_FINAL);
+
+ /* Write DBX symbols if requested. */
+
+ /* Note that for those inline functions where we don't initially
+ know for certain that we will be generating an out-of-line copy,
+ the first invocation of this routine (rest_of_compilation) will
+ skip over this code by doing a `goto exit_rest_of_compilation;'.
+ Later on, wrapup_global_declarations will (indirectly) call
+ rest_of_compilation again for those inline functions that need
+ to have out-of-line copies generated. During that call, we
+ *will* be routed past here. */
+
+ timevar_push (TV_SYMOUT);
+ (*debug_hooks->function_decl) (current_function_decl);
+ timevar_pop (TV_SYMOUT);
ggc_collect ();
+ timevar_pop (TV_FINAL);
}
#ifdef DELAY_SLOTS
/* Run delay slot optimization. */
static void
-rest_of_handle_delay_slots (tree decl, rtx insns)
+rest_of_handle_delay_slots (void)
{
timevar_push (TV_DBR_SCHED);
- open_dump_file (DFI_dbr, decl);
+ open_dump_file (DFI_dbr, current_function_decl);
- dbr_schedule (insns, dump_file);
+ dbr_schedule (get_insns (), dump_file);
- close_dump_file (DFI_dbr, print_rtl, insns);
- timevar_pop (TV_DBR_SCHED);
+ close_dump_file (DFI_dbr, print_rtl, get_insns ());
ggc_collect ();
+
+ timevar_pop (TV_DBR_SCHED);
}
#endif
/* Convert register usage from flat register file usage to a stack
register file. */
static void
-rest_of_handle_stack_regs (tree decl, rtx insns)
+rest_of_handle_stack_regs (void)
{
#if defined (HAVE_ATTR_length)
/* If flow2 creates new instructions which need splitting
#endif
timevar_push (TV_REG_STACK);
- open_dump_file (DFI_stack, decl);
+ open_dump_file (DFI_stack, current_function_decl);
- if (reg_to_stack (insns, dump_file) && optimize)
+ if (reg_to_stack (dump_file) && optimize)
{
if (cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_POST_REGSTACK
| (flag_crossjumping ? CLEANUP_CROSSJUMP : 0))
- && flag_reorder_blocks)
+ && (flag_reorder_blocks || flag_reorder_blocks_and_partition))
{
- reorder_basic_blocks ();
+ reorder_basic_blocks (0);
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_POST_REGSTACK);
}
}
- close_dump_file (DFI_stack, print_rtl_with_bb, insns);
- timevar_pop (TV_REG_STACK);
+ close_dump_file (DFI_stack, print_rtl_with_bb, get_insns ());
ggc_collect ();
+ timevar_pop (TV_REG_STACK);
}
#endif
-/* Track the variables, ie. compute where the variable is stored at each position in function. */
+/* Track the variables, i.e. compute where the variable is stored at each position in function. */
static void
-rest_of_handle_variable_tracking (tree decl, rtx insns)
+rest_of_handle_variable_tracking (void)
{
timevar_push (TV_VAR_TRACKING);
- open_dump_file (DFI_vartrack, decl);
+ open_dump_file (DFI_vartrack, current_function_decl);
variable_tracking_main ();
- close_dump_file (DFI_vartrack, print_rtl_with_bb, insns);
+ close_dump_file (DFI_vartrack, print_rtl_with_bb, get_insns ());
timevar_pop (TV_VAR_TRACKING);
}
-/* Machine independent reorg pass. */
+/* Machine dependent reorg pass. */
static void
-rest_of_handle_machine_reorg (tree decl, rtx insns)
+rest_of_handle_machine_reorg (void)
{
timevar_push (TV_MACH_DEP);
- open_dump_file (DFI_mach, decl);
+ open_dump_file (DFI_mach, current_function_decl);
targetm.machine_dependent_reorg ();
- close_dump_file (DFI_mach, print_rtl, insns);
- timevar_pop (TV_MACH_DEP);
+ close_dump_file (DFI_mach, print_rtl, get_insns ());
ggc_collect ();
+ timevar_pop (TV_MACH_DEP);
}
/* Run new register allocator. Return TRUE if we must exit
rest_of_compilation upon return. */
static bool
-rest_of_handle_new_regalloc (tree decl, rtx insns)
+rest_of_handle_new_regalloc (void)
{
int failure;
- delete_trivially_dead_insns (insns, max_reg_num ());
+ timevar_push (TV_LOCAL_ALLOC);
+ open_dump_file (DFI_lreg, current_function_decl);
+
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
reg_alloc ();
timevar_pop (TV_LOCAL_ALLOC);
- if (dump_file_tbl[DFI_lreg].enabled)
- {
- timevar_push (TV_DUMP);
-
- close_dump_file (DFI_lreg, NULL, NULL);
- timevar_pop (TV_DUMP);
- }
+ close_dump_file (DFI_lreg, NULL, NULL);
/* XXX clean up the whole mess to bring live info in shape again. */
timevar_push (TV_GLOBAL_ALLOC);
- open_dump_file (DFI_greg, decl);
+ open_dump_file (DFI_greg, current_function_decl);
- build_insn_chain (insns);
- failure = reload (insns, 0);
+ build_insn_chain (get_insns ());
+ failure = reload (get_insns (), 0);
timevar_pop (TV_GLOBAL_ALLOC);
- if (dump_file_tbl[DFI_greg].enabled)
+ ggc_collect ();
+
+ if (dump_enabled_p (DFI_greg))
{
timevar_push (TV_DUMP);
-
dump_global_regs (dump_file);
-
- close_dump_file (DFI_greg, print_rtl_with_bb, insns);
timevar_pop (TV_DUMP);
+ close_dump_file (DFI_greg, print_rtl_with_bb, get_insns ());
}
if (failure)
/* Run old register allocator. Return TRUE if we must exit
rest_of_compilation upon return. */
static bool
-rest_of_handle_old_regalloc (tree decl, rtx insns)
+rest_of_handle_old_regalloc (void)
{
int failure;
int rebuild_notes;
+ timevar_push (TV_LOCAL_ALLOC);
+ open_dump_file (DFI_lreg, current_function_decl);
+
/* Allocate the reg_renumber array. */
allocate_reg_info (max_regno, FALSE, TRUE);
/* And the reg_equiv_memory_loc array. */
- reg_equiv_memory_loc = xcalloc (max_regno, sizeof (rtx));
+ VARRAY_GROW (reg_equiv_memory_loc_varray, max_regno);
+ reg_equiv_memory_loc = &VARRAY_RTX (reg_equiv_memory_loc_varray, 0);
allocate_initial_values (reg_equiv_memory_loc);
- regclass (insns, max_reg_num (), dump_file);
+ regclass (get_insns (), max_reg_num (), dump_file);
rebuild_notes = local_alloc ();
timevar_pop (TV_LOCAL_ALLOC);
{
timevar_push (TV_JUMP);
- rebuild_jump_labels (insns);
+ rebuild_jump_labels (get_insns ());
purge_all_dead_edges (0);
timevar_pop (TV_JUMP);
}
- if (dump_file_tbl[DFI_lreg].enabled)
+ if (dump_enabled_p (DFI_lreg))
{
timevar_push (TV_DUMP);
-
dump_flow_info (dump_file);
dump_local_alloc (dump_file);
-
- close_dump_file (DFI_lreg, print_rtl_with_bb, insns);
timevar_pop (TV_DUMP);
}
+ close_dump_file (DFI_lreg, print_rtl_with_bb, get_insns ());
+
ggc_collect ();
timevar_push (TV_GLOBAL_ALLOC);
- open_dump_file (DFI_greg, decl);
+ open_dump_file (DFI_greg, current_function_decl);
/* If optimizing, allocate remaining pseudo-regs. Do the reload
pass fixing up any insns that are invalid. */
failure = global_alloc (dump_file);
else
{
- build_insn_chain (insns);
- failure = reload (insns, 0);
+ build_insn_chain (get_insns ());
+ failure = reload (get_insns (), 0);
}
- timevar_pop (TV_GLOBAL_ALLOC);
-
- if (dump_file_tbl[DFI_greg].enabled)
+ if (dump_enabled_p (DFI_greg))
{
timevar_push (TV_DUMP);
-
dump_global_regs (dump_file);
-
- close_dump_file (DFI_greg, print_rtl_with_bb, insns);
timevar_pop (TV_DUMP);
+
+ close_dump_file (DFI_greg, print_rtl_with_bb, get_insns ());
}
+ ggc_collect ();
+
+ timevar_pop (TV_GLOBAL_ALLOC);
+
return failure;
}
/* Run the regrename and cprop passes. */
static void
-rest_of_handle_regrename (tree decl, rtx insns)
+rest_of_handle_regrename (void)
{
timevar_push (TV_RENAME_REGISTERS);
- open_dump_file (DFI_rnreg, decl);
+ open_dump_file (DFI_rnreg, current_function_decl);
if (flag_rename_registers)
regrename_optimize ();
if (flag_cprop_registers)
copyprop_hardreg_forward ();
- close_dump_file (DFI_rnreg, print_rtl_with_bb, insns);
+ close_dump_file (DFI_rnreg, print_rtl_with_bb, get_insns ());
timevar_pop (TV_RENAME_REGISTERS);
}
/* Reorder basic blocks. */
static void
-rest_of_handle_reorder_blocks (tree decl, rtx insns)
+rest_of_handle_reorder_blocks (void)
{
bool changed;
- open_dump_file (DFI_bbro, decl);
+ unsigned int liveness_flags;
+
+ open_dump_file (DFI_bbro, current_function_decl);
/* Last attempt to optimize CFG, as scheduling, peepholing and insn
splitting possibly introduced more crossjumping opportunities. */
- changed = cleanup_cfg (CLEANUP_EXPENSIVE
- | (!HAVE_conditional_execution
- ? CLEANUP_UPDATE_LIFE : 0));
+ liveness_flags = (!HAVE_conditional_execution ? CLEANUP_UPDATE_LIFE : 0);
+ changed = cleanup_cfg (CLEANUP_EXPENSIVE | liveness_flags);
if (flag_sched2_use_traces && flag_schedule_insns_after_reload)
- tracer ();
- if (flag_reorder_blocks)
- reorder_basic_blocks ();
- if (flag_reorder_blocks
+ tracer (liveness_flags);
+ if (flag_reorder_blocks || flag_reorder_blocks_and_partition)
+ reorder_basic_blocks (liveness_flags);
+ if (flag_reorder_blocks || flag_reorder_blocks_and_partition
|| (flag_sched2_use_traces && flag_schedule_insns_after_reload))
- changed |= cleanup_cfg (CLEANUP_EXPENSIVE
- | (!HAVE_conditional_execution
- ? CLEANUP_UPDATE_LIFE : 0));
+ changed |= cleanup_cfg (CLEANUP_EXPENSIVE | liveness_flags);
/* On conditional execution targets we can not update the life cheaply, so
we deffer the updating to after both cleanups. This may lose some cases
if (changed && HAVE_conditional_execution)
update_life_info (NULL, UPDATE_LIFE_GLOBAL_RM_NOTES,
PROP_DEATH_NOTES);
- close_dump_file (DFI_bbro, print_rtl_with_bb, insns);
+ close_dump_file (DFI_bbro, print_rtl_with_bb, get_insns ());
+}
+
+/* Partition hot and cold basic blocks. */
+static void
+rest_of_handle_partition_blocks (void)
+{
+ no_new_pseudos = 0;
+ partition_hot_cold_basic_blocks ();
+ allocate_reg_life_data ();
+ update_life_info (NULL, UPDATE_LIFE_GLOBAL_RM_NOTES,
+ PROP_LOG_LINKS | PROP_REG_INFO | PROP_DEATH_NOTES);
+ no_new_pseudos = 1;
}
#ifdef INSN_SCHEDULING
/* Run instruction scheduler. */
+/* Perform SMS module scheduling. */
+static void
+rest_of_handle_sms (void)
+{
+ timevar_push (TV_SMS);
+ open_dump_file (DFI_sms, current_function_decl);
+
+ /* We want to be able to create new pseudos. */
+ no_new_pseudos = 0;
+ sms_schedule (dump_file);
+ close_dump_file (DFI_sms, print_rtl, get_insns ());
+
+
+ /* Update the life information, because we add pseudos. */
+ max_regno = max_reg_num ();
+ allocate_reg_info (max_regno, FALSE, FALSE);
+ update_life_info_in_dirty_blocks (UPDATE_LIFE_GLOBAL_RM_NOTES,
+ (PROP_DEATH_NOTES
+ | PROP_KILL_DEAD_CODE
+ | PROP_SCAN_DEAD_CODE));
+ no_new_pseudos = 1;
+
+ ggc_collect ();
+ timevar_pop (TV_SMS);
+}
+
+/* Run instruction scheduler. */
static void
-rest_of_handle_sched (tree decl, rtx insns)
+rest_of_handle_sched (void)
{
timevar_push (TV_SCHED);
/* Print function header into sched dump now
because doing the sched analysis makes some of the dump. */
- if (optimize > 0 && flag_schedule_insns)
- {
- open_dump_file (DFI_sched, decl);
+ open_dump_file (DFI_sched, current_function_decl);
- /* Do control and data sched analysis,
- and write some of the results to dump file. */
+ /* Do control and data sched analysis,
+ and write some of the results to dump file. */
- schedule_insns (dump_file);
+ schedule_insns (dump_file);
- close_dump_file (DFI_sched, print_rtl_with_bb, insns);
- }
- timevar_pop (TV_SCHED);
+ close_dump_file (DFI_sched, print_rtl_with_bb, get_insns ());
ggc_collect ();
+ timevar_pop (TV_SCHED);
}
/* Run second scheduling pass after reload. */
static void
-rest_of_handle_sched2 (tree decl, rtx insns)
+rest_of_handle_sched2 (void)
{
timevar_push (TV_SCHED2);
- open_dump_file (DFI_sched2, decl);
+ open_dump_file (DFI_sched2, current_function_decl);
/* Do control and data sched analysis again,
and write some more of the results to dump file. */
else
schedule_insns (dump_file);
- close_dump_file (DFI_sched2, print_rtl_with_bb, insns);
- timevar_pop (TV_SCHED2);
+ close_dump_file (DFI_sched2, print_rtl_with_bb, get_insns ());
ggc_collect ();
+
+ timevar_pop (TV_SCHED2);
}
#endif
static void
-rest_of_handle_gcse2 (tree decl, rtx insns)
+rest_of_handle_gcse2 (void)
{
- open_dump_file (DFI_gcse2, decl);
+ timevar_push (TV_GCSE_AFTER_RELOAD);
+ open_dump_file (DFI_gcse2, current_function_decl);
- gcse_after_reload_main (insns, dump_file);
- rebuild_jump_labels (insns);
- delete_trivially_dead_insns (insns, max_reg_num ());
- close_dump_file (DFI_gcse2, print_rtl_with_bb, insns);
+ gcse_after_reload_main (get_insns ());
+ rebuild_jump_labels (get_insns ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
+ close_dump_file (DFI_gcse2, print_rtl_with_bb, get_insns ());
ggc_collect ();
#ifdef ENABLE_CHECKING
verify_flow_info ();
#endif
+
+ timevar_pop (TV_GCSE_AFTER_RELOAD);
}
/* Register allocation pre-pass, to reduce number of moves necessary
for two-address machines. */
static void
-rest_of_handle_regmove (tree decl, rtx insns)
+rest_of_handle_regmove (void)
{
timevar_push (TV_REGMOVE);
- open_dump_file (DFI_regmove, decl);
+ open_dump_file (DFI_regmove, current_function_decl);
- regmove_optimize (insns, max_reg_num (), dump_file);
+ regmove_optimize (get_insns (), max_reg_num (), dump_file);
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_UPDATE_LIFE);
- close_dump_file (DFI_regmove, print_rtl_with_bb, insns);
- timevar_pop (TV_REGMOVE);
+ close_dump_file (DFI_regmove, print_rtl_with_bb, get_insns ());
ggc_collect ();
+ timevar_pop (TV_REGMOVE);
}
/* Run tracer. */
static void
-rest_of_handle_tracer (tree decl, rtx insns)
+rest_of_handle_tracer (void)
{
- open_dump_file (DFI_tracer, decl);
+ open_dump_file (DFI_tracer, current_function_decl);
if (dump_file)
dump_flow_info (dump_file);
- tracer ();
+ tracer (0);
cleanup_cfg (CLEANUP_EXPENSIVE);
- reg_scan (insns, max_reg_num (), 0);
+ reg_scan (get_insns (), max_reg_num (), 0);
close_dump_file (DFI_tracer, print_rtl_with_bb, get_insns ());
}
/* If-conversion and CFG cleanup. */
static void
-rest_of_handle_if_conversion (tree decl, rtx insns)
+rest_of_handle_if_conversion (void)
{
- open_dump_file (DFI_ce1, decl);
+ timevar_push (TV_IFCVT);
+ open_dump_file (DFI_ce1, current_function_decl);
+
if (flag_if_conversion)
{
- timevar_push (TV_IFCVT);
if (dump_file)
dump_flow_info (dump_file);
cleanup_cfg (CLEANUP_EXPENSIVE);
- reg_scan (insns, max_reg_num (), 0);
+ reg_scan (get_insns (), max_reg_num (), 0);
if_convert (0);
- timevar_pop (TV_IFCVT);
}
+
timevar_push (TV_JUMP);
cleanup_cfg (CLEANUP_EXPENSIVE);
- reg_scan (insns, max_reg_num (), 0);
+ reg_scan (get_insns (), max_reg_num (), 0);
timevar_pop (TV_JUMP);
+
close_dump_file (DFI_ce1, print_rtl_with_bb, get_insns ());
+ timevar_pop (TV_IFCVT);
}
/* Rerun if-conversion, as combine may have simplified things enough
to now meet sequence length restrictions. */
static void
-rest_of_handle_if_after_combine (tree decl, rtx insns)
+rest_of_handle_if_after_combine (void)
{
timevar_push (TV_IFCVT);
- open_dump_file (DFI_ce2, decl);
+ open_dump_file (DFI_ce2, current_function_decl);
no_new_pseudos = 0;
if_convert (1);
no_new_pseudos = 1;
- close_dump_file (DFI_ce2, print_rtl_with_bb, insns);
+ close_dump_file (DFI_ce2, print_rtl_with_bb, get_insns ());
timevar_pop (TV_IFCVT);
}
static void
-rest_of_handle_web (tree decl, rtx insns)
+rest_of_handle_if_after_reload (void)
+{
+ timevar_push (TV_IFCVT2);
+ open_dump_file (DFI_ce3, current_function_decl);
+
+ /* Last attempt to optimize CFG, as scheduling, peepholing and insn
+ splitting possibly introduced more crossjumping opportunities. */
+ cleanup_cfg (CLEANUP_EXPENSIVE
+ | CLEANUP_UPDATE_LIFE
+ | (flag_crossjumping ? CLEANUP_CROSSJUMP : 0));
+ if (flag_if_conversion2)
+ if_convert (1);
+ close_dump_file (DFI_ce3, print_rtl_with_bb, get_insns ());
+ timevar_pop (TV_IFCVT2);
+}
+
+static void
+rest_of_handle_web (void)
{
- open_dump_file (DFI_web, decl);
+ open_dump_file (DFI_web, current_function_decl);
timevar_push (TV_WEB);
web_main ();
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
cleanup_cfg (CLEANUP_EXPENSIVE);
timevar_pop (TV_WEB);
- close_dump_file (DFI_web, print_rtl_with_bb, insns);
+ close_dump_file (DFI_web, print_rtl_with_bb, get_insns ());
reg_scan (get_insns (), max_reg_num (), 0);
}
/* Do branch profiling and static profile estimation passes. */
static void
-rest_of_handle_branch_prob (tree decl, rtx insns)
+rest_of_handle_branch_prob (void)
{
struct loops loops;
timevar_push (TV_BRANCH_PROB);
- open_dump_file (DFI_bp, decl);
+ open_dump_file (DFI_bp, current_function_decl);
if (profile_arc_flag || flag_test_coverage || flag_branch_probabilities)
branch_prob ();
flow_loops_free (&loops);
free_dominance_info (CDI_DOMINATORS);
- close_dump_file (DFI_bp, print_rtl_with_bb, insns);
+ close_dump_file (DFI_bp, print_rtl_with_bb, get_insns ());
timevar_pop (TV_BRANCH_PROB);
}
/* Do optimizations based on expression value profiles. */
static void
-rest_of_handle_value_profile_transformations (tree decl, rtx insns)
+rest_of_handle_value_profile_transformations (void)
{
- open_dump_file (DFI_vpt, decl);
+ open_dump_file (DFI_vpt, current_function_decl);
timevar_push (TV_VPT);
if (value_profile_transformations ())
cleanup_cfg (CLEANUP_EXPENSIVE);
timevar_pop (TV_VPT);
- close_dump_file (DFI_vpt, print_rtl_with_bb, insns);
+ close_dump_file (DFI_vpt, print_rtl_with_bb, get_insns ());
}
/* Do control and data flow analysis; write some of the results to the
dump file. */
static void
-rest_of_handle_cfg (tree decl, rtx insns)
+rest_of_handle_cfg (void)
{
- open_dump_file (DFI_cfg, decl);
+ open_dump_file (DFI_cfg, current_function_decl);
if (dump_file)
dump_flow_info (dump_file);
if (optimize)
it as constant, otherwise -fbranch-probabilities will not read data back.
life_analysis rarely eliminates modification of external memory.
- */
- if (optimize)
+
+ FIXME: now with tree based profiling we are in the trap described above
+ again. It seems to be easiest to disable the optimization for time
+ being before the problem is either solved by moving the transformation
+ to the IPA level (we need the CFG for this) or the very early optimization
+ passes are made to ignore the const/pure flags so code does not change. */
+ if (optimize
+ && (!flag_tree_based_profiling
+ || (!profile_arc_flag && !flag_branch_probabilities)))
{
/* Alias analysis depends on this information and mark_constant_function
depends on alias analysis. */
- reg_scan (insns, max_reg_num (), 1);
+ reg_scan (get_insns (), max_reg_num (), 1);
mark_constant_function ();
}
- close_dump_file (DFI_cfg, print_rtl_with_bb, insns);
-}
-
-/* Purge addressofs. */
-static void
-rest_of_handle_addressof (tree decl, rtx insns)
-{
- open_dump_file (DFI_addressof, decl);
-
- purge_addressof (insns);
- if (optimize && purge_all_dead_edges (0))
- delete_unreachable_blocks ();
- reg_scan (insns, max_reg_num (), 1);
-
- close_dump_file (DFI_addressof, print_rtl, insns);
-}
-
-/* We may have potential sibling or tail recursion sites. Select one
- (of possibly multiple) methods of performing the call. */
-static void
-rest_of_handle_sibling_calls (rtx insns)
-{
- rtx insn;
- optimize_sibling_and_tail_recursive_calls ();
-
- /* Recompute the CFG as sibling optimization clobbers it randomly. */
- free_bb_for_insn ();
- find_exception_handler_labels ();
- rebuild_jump_labels (insns);
- find_basic_blocks (insns, max_reg_num (), dump_file);
-
- /* There is pass ordering problem - we must lower NOTE_INSN_PREDICTION
- notes before simplifying cfg and we must do lowering after sibcall
- that unhides parts of RTL chain and cleans up the CFG.
-
- Until sibcall is replaced by tree-level optimizer, lets just
- sweep away the NOTE_INSN_PREDICTION notes that leaked out. */
- for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
- if (GET_CODE (insn) == NOTE
- && NOTE_LINE_NUMBER (insn) == NOTE_INSN_PREDICTION)
- delete_insn (insn);
-
- close_dump_file (DFI_sibling, print_rtl, get_insns ());
+ close_dump_file (DFI_cfg, print_rtl_with_bb, get_insns ());
}
/* Perform jump bypassing and control flow optimizations. */
static void
-rest_of_handle_jump_bypass (tree decl, rtx insns)
+rest_of_handle_jump_bypass (void)
{
timevar_push (TV_BYPASS);
- open_dump_file (DFI_bypass, decl);
+ open_dump_file (DFI_bypass, current_function_decl);
cleanup_cfg (CLEANUP_EXPENSIVE);
- reg_scan (insns, max_reg_num (), 1);
+ reg_scan (get_insns (), max_reg_num (), 1);
if (bypass_jumps (dump_file))
{
- rebuild_jump_labels (insns);
+ rebuild_jump_labels (get_insns ());
cleanup_cfg (CLEANUP_EXPENSIVE);
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
}
- close_dump_file (DFI_bypass, print_rtl_with_bb, insns);
+ close_dump_file (DFI_bypass, print_rtl_with_bb, get_insns ());
timevar_pop (TV_BYPASS);
ggc_collect ();
#endif
}
-/* Handle inlining of functions in rest_of_compilation. Return TRUE
- if we must exit rest_of_compilation upon return. */
-static bool
-rest_of_handle_inlining (tree decl)
-{
- rtx insns;
- int inlinable = 0;
- tree parent;
- const char *lose;
-
- /* If we are reconsidering an inline function at the end of
- compilation, skip the stuff for making it inline. */
- if (cfun->rtl_inline_init)
- return 0;
- cfun->rtl_inline_init = 1;
-
- /* If this is nested inside an inlined external function, pretend
- it was only declared. Since we cannot inline such functions,
- generating code for this one is not only not necessary but will
- confuse some debugging output writers. */
- for (parent = DECL_CONTEXT (current_function_decl);
- parent != NULL_TREE;
- parent = get_containing_scope (parent))
- if (TREE_CODE (parent) == FUNCTION_DECL
- && DECL_INLINE (parent) && DECL_EXTERNAL (parent))
- {
- DECL_INITIAL (decl) = 0;
- return true;
- }
- else if (TYPE_P (parent))
- /* A function in a local class should be treated normally. */
- break;
-
- /* If requested, consider whether to make this function inline. */
- if ((DECL_INLINE (decl) && !flag_no_inline)
- || flag_inline_functions)
- {
- timevar_push (TV_INTEGRATION);
- lose = function_cannot_inline_p (decl);
- timevar_pop (TV_INTEGRATION);
- if (lose || ! optimize)
- {
- if (warn_inline && lose && DECL_INLINE (decl))
- {
- char *msg = concat ("%J", lose, NULL);
- warning (msg, decl);
- free (msg);
- }
- DECL_ABSTRACT_ORIGIN (decl) = 0;
- /* Don't really compile an extern inline function.
- If we can't make it inline, pretend
- it was only declared. */
- if (DECL_EXTERNAL (decl))
- {
- DECL_INITIAL (decl) = 0;
- return true;
- }
- }
- else
- inlinable = DECL_INLINE (decl) = 1;
- }
-
- insns = get_insns ();
-
- /* Dump the rtl code if we are dumping rtl. */
-
- if (open_dump_file (DFI_rtl, decl))
- {
- if (DECL_STRUCT_FUNCTION (decl)
- && DECL_STRUCT_FUNCTION (decl)->saved_for_inline)
- fprintf (dump_file, ";; (integrable)\n\n");
- close_dump_file (DFI_rtl, print_rtl, insns);
- }
-
- /* Convert from NOTE_INSN_EH_REGION style notes, and do other
- sorts of eh initialization. Delay this until after the
- initial rtl dump so that we can see the original nesting. */
- convert_from_eh_region_ranges ();
-
- /* If function is inline, and we don't yet know whether to
- compile it by itself, defer decision till end of compilation.
- wrapup_global_declarations will (indirectly) call
- rest_of_compilation again for those functions that need to
- be output. Also defer those functions that we are supposed
- to defer. */
-
- if (inlinable
- || (DECL_INLINE (decl)
- /* Egad. This RTL deferral test conflicts with Fortran assumptions
- for unreferenced symbols. See g77.f-torture/execute/980520-1.f.
- But removing this line from the check breaks all languages that
- use the call graph to output symbols. This hard-coded check is
- the least invasive work-around. */
- && (flag_inline_functions
- || strcmp (lang_hooks.name, "GNU F77") == 0)
- && ((! TREE_PUBLIC (decl) && ! TREE_ADDRESSABLE (decl)
- && ! TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))
- && ! flag_keep_inline_functions)
- || DECL_EXTERNAL (decl))))
- DECL_DEFER_OUTPUT (decl) = 1;
-
- if (DECL_INLINE (decl))
- /* DWARF wants separate debugging info for abstract and
- concrete instances of all inline functions, including those
- declared inline but not inlined, and those inlined even
- though they weren't declared inline. Conveniently, that's
- what DECL_INLINE means at this point. */
- (*debug_hooks->deferred_inline_function) (decl);
-
- if (DECL_DEFER_OUTPUT (decl))
- {
- /* If -Wreturn-type, we have to do a bit of compilation. We just
- want to call cleanup the cfg to figure out whether or not we can
- fall off the end of the function; we do the minimum amount of
- work necessary to make that safe. */
- if (warn_return_type)
- {
- int saved_optimize = optimize;
-
- optimize = 0;
- rebuild_jump_labels (insns);
- find_exception_handler_labels ();
- find_basic_blocks (insns, max_reg_num (), dump_file);
- cleanup_cfg (CLEANUP_PRE_SIBCALL | CLEANUP_PRE_LOOP);
- optimize = saved_optimize;
-
- /* CFG is no longer maintained up-to-date. */
- free_bb_for_insn ();
- }
-
- set_nothrow_function_flags ();
- if (current_function_nothrow)
- /* Now we know that this can't throw; set the flag for the benefit
- of other functions later in this translation unit. */
- TREE_NOTHROW (current_function_decl) = 1;
-
- timevar_push (TV_INTEGRATION);
- save_for_inline (decl);
- timevar_pop (TV_INTEGRATION);
- DECL_STRUCT_FUNCTION (decl)->inlinable = inlinable;
- return true;
- }
-
- /* If specified extern inline but we aren't inlining it, we are
- done. This goes for anything that gets here with DECL_EXTERNAL
- set, not just things with DECL_INLINE. */
- return (bool) DECL_EXTERNAL (decl);
-}
-
-/* Try to identify useless null pointer tests and delete them. */
-static void
-rest_of_handle_null_pointer (tree decl, rtx insns)
-{
- open_dump_file (DFI_null, decl);
- if (dump_file)
- dump_flow_info (dump_file);
-
- if (delete_null_pointer_checks (insns))
- cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP);
-
- close_dump_file (DFI_null, print_rtl_with_bb, insns);
-}
-
/* Try combining insns through substitution. */
static void
-rest_of_handle_combine (tree decl, rtx insns)
+rest_of_handle_combine (void)
{
int rebuild_jump_labels_after_combine = 0;
timevar_push (TV_COMBINE);
- open_dump_file (DFI_combine, decl);
+ open_dump_file (DFI_combine, current_function_decl);
rebuild_jump_labels_after_combine
- = combine_instructions (insns, max_reg_num ());
+ = combine_instructions (get_insns (), max_reg_num ());
/* Combining insns may have turned an indirect jump into a
direct jump. Rebuild the JUMP_LABEL fields of jumping
if (rebuild_jump_labels_after_combine)
{
timevar_push (TV_JUMP);
- rebuild_jump_labels (insns);
+ rebuild_jump_labels (get_insns ());
timevar_pop (TV_JUMP);
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_UPDATE_LIFE);
}
- close_dump_file (DFI_combine, print_rtl_with_bb, insns);
+ close_dump_file (DFI_combine, print_rtl_with_bb, get_insns ());
timevar_pop (TV_COMBINE);
ggc_collect ();
/* Perform life analysis. */
static void
-rest_of_handle_life (tree decl, rtx insns)
+rest_of_handle_life (void)
{
- open_dump_file (DFI_life, decl);
+ open_dump_file (DFI_life, current_function_decl);
regclass_init ();
#ifdef ENABLE_CHECKING
verify_flow_info ();
#endif
- life_analysis (insns, dump_file, PROP_FINAL);
+ life_analysis (dump_file, PROP_FINAL);
if (optimize)
cleanup_cfg ((optimize ? CLEANUP_EXPENSIVE : 0) | CLEANUP_UPDATE_LIFE
| CLEANUP_LOG_LINKS
| (flag_thread_jumps ? CLEANUP_THREADING : 0));
- timevar_pop (TV_FLOW);
- if (warn_uninitialized)
+ if (extra_warnings)
{
- uninitialized_vars_warning (DECL_INITIAL (decl));
- if (extra_warnings)
- setjmp_args_warning ();
+ setjmp_vars_warning (DECL_INITIAL (current_function_decl));
+ setjmp_args_warning ();
}
if (optimize)
{
/* Insns were inserted, and possibly pseudos created, so
things might look a bit different. */
- insns = get_insns ();
allocate_reg_life_data ();
update_life_info (NULL, UPDATE_LIFE_GLOBAL_RM_NOTES,
PROP_LOG_LINKS | PROP_REG_INFO | PROP_DEATH_NOTES);
no_new_pseudos = 1;
- close_dump_file (DFI_life, print_rtl_with_bb, insns);
+ close_dump_file (DFI_life, print_rtl_with_bb, get_insns ());
ggc_collect ();
}
`cse_main' means that jumps were simplified and some code may now
be unreachable, so do jump optimization again. */
static void
-rest_of_handle_cse (tree decl, rtx insns)
+rest_of_handle_cse (void)
{
int tem;
- open_dump_file (DFI_cse, decl);
+ open_dump_file (DFI_cse, current_function_decl);
if (dump_file)
dump_flow_info (dump_file);
timevar_push (TV_CSE);
- reg_scan (insns, max_reg_num (), 1);
+ reg_scan (get_insns (), max_reg_num (), 1);
- tem = cse_main (insns, max_reg_num (), 0, dump_file);
+ tem = cse_main (get_insns (), max_reg_num (), dump_file);
if (tem)
- rebuild_jump_labels (insns);
+ rebuild_jump_labels (get_insns ());
if (purge_all_dead_edges (0))
delete_unreachable_blocks ();
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
/* If we are not running more CSE passes, then we are no longer
expecting CSE to be run. But always rerun it in a cheap mode. */
if (tem || optimize > 1)
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP);
- /* Try to identify useless null pointer tests and delete them. */
- if (flag_delete_null_pointer_checks)
- {
- timevar_push (TV_JUMP);
-
- if (delete_null_pointer_checks (insns))
- cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP);
- timevar_pop (TV_JUMP);
- }
-
- /* The second pass of jump optimization is likely to have
- removed a bunch more instructions. */
- renumber_insns (dump_file);
timevar_pop (TV_CSE);
- close_dump_file (DFI_cse, print_rtl_with_bb, insns);
+ close_dump_file (DFI_cse, print_rtl_with_bb, get_insns ());
+
+ ggc_collect ();
}
/* Run second CSE pass after loop optimizations. */
static void
-rest_of_handle_cse2 (tree decl, rtx insns)
+rest_of_handle_cse2 (void)
{
int tem;
timevar_push (TV_CSE2);
- open_dump_file (DFI_cse2, decl);
+ open_dump_file (DFI_cse2, current_function_decl);
if (dump_file)
dump_flow_info (dump_file);
/* CFG is no longer maintained up-to-date. */
- tem = cse_main (insns, max_reg_num (), 1, dump_file);
+ tem = cse_main (get_insns (), max_reg_num (), dump_file);
/* Run a pass to eliminate duplicated assignments to condition code
registers. We have to run this after bypass_jumps, because it
cse_condition_code_reg ();
purge_all_dead_edges (0);
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
if (tem)
{
timevar_push (TV_JUMP);
- rebuild_jump_labels (insns);
+ rebuild_jump_labels (get_insns ());
cleanup_cfg (CLEANUP_EXPENSIVE);
timevar_pop (TV_JUMP);
}
- reg_scan (insns, max_reg_num (), 0);
- close_dump_file (DFI_cse2, print_rtl_with_bb, insns);
- ggc_collect ();
+ reg_scan (get_insns (), max_reg_num (), 0);
+ close_dump_file (DFI_cse2, print_rtl_with_bb, get_insns ());
timevar_pop (TV_CSE2);
+
+ ggc_collect ();
}
/* Perform global cse. */
static void
-rest_of_handle_gcse (tree decl, rtx insns)
+rest_of_handle_gcse (void)
{
int save_csb, save_cfj;
int tem2 = 0, tem;
timevar_push (TV_GCSE);
- open_dump_file (DFI_gcse, decl);
+ open_dump_file (DFI_gcse, current_function_decl);
- tem = gcse_main (insns, dump_file);
- rebuild_jump_labels (insns);
- delete_trivially_dead_insns (insns, max_reg_num ());
+ tem = gcse_main (get_insns (), dump_file);
+ rebuild_jump_labels (get_insns ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
save_csb = flag_cse_skip_blocks;
save_cfj = flag_cse_follow_jumps;
flag_cse_skip_blocks = flag_cse_follow_jumps = 0;
- /* Instantiate any remaining CONSTANT_P_RTX nodes. */
- if (current_function_calls_constant_p)
- purge_builtin_constant_p ();
-
/* If -fexpensive-optimizations, re-run CSE to clean up things done
by gcse. */
if (flag_expensive_optimizations)
{
timevar_push (TV_CSE);
- reg_scan (insns, max_reg_num (), 1);
- tem2 = cse_main (insns, max_reg_num (), 0, dump_file);
+ reg_scan (get_insns (), max_reg_num (), 1);
+ tem2 = cse_main (get_insns (), max_reg_num (), dump_file);
purge_all_dead_edges (0);
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
timevar_pop (TV_CSE);
cse_not_expected = !flag_rerun_cse_after_loop;
}
{
tem = tem2 = 0;
timevar_push (TV_JUMP);
- rebuild_jump_labels (insns);
+ rebuild_jump_labels (get_insns ());
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP);
timevar_pop (TV_JUMP);
if (flag_expensive_optimizations)
{
timevar_push (TV_CSE);
- reg_scan (insns, max_reg_num (), 1);
- tem2 = cse_main (insns, max_reg_num (), 0, dump_file);
+ reg_scan (get_insns (), max_reg_num (), 1);
+ tem2 = cse_main (get_insns (), max_reg_num (), dump_file);
purge_all_dead_edges (0);
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
timevar_pop (TV_CSE);
}
}
- close_dump_file (DFI_gcse, print_rtl_with_bb, insns);
+ close_dump_file (DFI_gcse, print_rtl_with_bb, get_insns ());
timevar_pop (TV_GCSE);
ggc_collect ();
/* Move constant computations out of loops. */
static void
-rest_of_handle_loop_optimize (tree decl, rtx insns)
+rest_of_handle_loop_optimize (void)
{
- int do_unroll, do_prefetch;
+ int do_prefetch;
timevar_push (TV_LOOP);
delete_dead_jumptables ();
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP);
- open_dump_file (DFI_loop, decl);
+ open_dump_file (DFI_loop, current_function_decl);
/* CFG is no longer maintained up-to-date. */
free_bb_for_insn ();
+ profile_status = PROFILE_ABSENT;
- if (flag_unroll_loops)
- do_unroll = LOOP_AUTO_UNROLL; /* Having two unrollers is useless. */
- else
- do_unroll = flag_old_unroll_loops ? LOOP_UNROLL : LOOP_AUTO_UNROLL;
do_prefetch = flag_prefetch_loop_arrays ? LOOP_PREFETCH : 0;
if (flag_rerun_loop_opt)
cleanup_barriers ();
/* We only want to perform unrolling once. */
- loop_optimize (insns, dump_file, do_unroll);
- do_unroll = 0;
+ loop_optimize (get_insns (), dump_file, 0);
/* The first call to loop_optimize makes some instructions
trivially dead. We delete those instructions now in the
hope that doing so will make the heuristics in loop work
better and possibly speed up compilation. */
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
/* The regscan pass is currently necessary as the alias
analysis code depends on this information. */
- reg_scan (insns, max_reg_num (), 1);
+ reg_scan (get_insns (), max_reg_num (), 1);
}
cleanup_barriers ();
- loop_optimize (insns, dump_file, do_unroll | do_prefetch);
+ loop_optimize (get_insns (), dump_file, do_prefetch);
/* Loop can create trivially dead instructions. */
- delete_trivially_dead_insns (insns, max_reg_num ());
- close_dump_file (DFI_loop, print_rtl, insns);
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
+ find_basic_blocks (get_insns (), max_reg_num (), dump_file);
+ close_dump_file (DFI_loop, print_rtl, get_insns ());
timevar_pop (TV_LOOP);
- find_basic_blocks (insns, max_reg_num (), dump_file);
ggc_collect ();
}
sooner, but we want the profile feedback to work more
efficiently. */
static void
-rest_of_handle_loop2 (tree decl, rtx insns)
+rest_of_handle_loop2 (void)
{
struct loops *loops;
basic_block bb;
- if (!flag_unswitch_loops
+ if (!flag_move_loop_invariants
+ && !flag_unswitch_loops
&& !flag_peel_loops
&& !flag_unroll_loops
&& !flag_branch_on_count_reg)
return;
timevar_push (TV_LOOP);
- open_dump_file (DFI_loop2, decl);
+ open_dump_file (DFI_loop2, current_function_decl);
if (dump_file)
dump_flow_info (dump_file);
/* Initialize structures for layout changes. */
- cfg_layout_initialize ();
+ cfg_layout_initialize (0);
loops = loop_optimizer_init (dump_file);
if (loops)
{
/* The optimizations: */
+ if (flag_move_loop_invariants)
+ move_loop_invariants (loops);
+
if (flag_unswitch_loops)
unswitch_loops (loops);
loop_optimizer_finalize (loops, dump_file);
}
+ free_dominance_info (CDI_DOMINATORS);
+
/* Finalize layout changes. */
FOR_EACH_BB (bb)
if (bb->next_bb != EXIT_BLOCK_PTR)
cfg_layout_finalize ();
cleanup_cfg (CLEANUP_EXPENSIVE);
- delete_trivially_dead_insns (insns, max_reg_num ());
- reg_scan (insns, max_reg_num (), 0);
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
+ reg_scan (get_insns (), max_reg_num (), 0);
if (dump_file)
dump_flow_info (dump_file);
close_dump_file (DFI_loop2, print_rtl_with_bb, get_insns ());
ggc_collect ();
}
-/* This is called from finish_function (within langhooks.parse_file)
- after each top-level definition is parsed.
- It is supposed to compile that function or variable
- and output the assembler code for it.
- After we return, the tree storage is freed. */
-
-void
-rest_of_compilation (tree decl)
+static void
+rest_of_handle_branch_target_load_optimize (void)
{
- rtx insns;
+ static int warned = 0;
+
+ /* Leave this a warning for now so that it is possible to experiment
+ with running this pass twice. In 3.6, we should either make this
+ an error, or use separate dump files. */
+ if (flag_branch_target_load_optimize
+ && flag_branch_target_load_optimize2
+ && !warned)
+ {
+ warning ("branch target register load optimization is not intended "
+ "to be run twice");
- timevar_push (TV_REST_OF_COMPILATION);
+ warned = 1;
+ }
- /* Register rtl specific functions for cfg. */
- rtl_register_cfg_hooks ();
+ open_dump_file (DFI_branch_target_load, current_function_decl);
+ branch_target_load_optimize (epilogue_completed);
+ close_dump_file (DFI_branch_target_load, print_rtl_with_bb, get_insns ());
+ ggc_collect ();
+}
- /* Now that we're out of the frontend, we shouldn't have any more
- CONCATs anywhere. */
- generating_concat_p = 0;
+#ifdef OPTIMIZE_MODE_SWITCHING
+static void
+rest_of_handle_mode_switching (void)
+{
+ timevar_push (TV_MODE_SWITCH);
- /* When processing delayed functions, prepare_function_start() won't
- have been run to re-initialize it. */
- cse_not_expected = ! optimize;
+ no_new_pseudos = 0;
+ optimize_mode_switching (NULL);
+ no_new_pseudos = 1;
- /* First, make sure that NOTE_BLOCK is set correctly for each
- NOTE_INSN_BLOCK_BEG/NOTE_INSN_BLOCK_END note. */
- if (!cfun->x_whole_function_mode_p)
- identify_blocks ();
+ timevar_pop (TV_MODE_SWITCH);
+}
+#endif
- /* In function-at-a-time mode, we do not attempt to keep the BLOCK
- tree in sensible shape. So, we just recalculate it here. */
- if (cfun->x_whole_function_mode_p)
- reorder_blocks ();
+static void
+rest_of_handle_jump (void)
+{
+ ggc_collect ();
- init_flow ();
+ timevar_push (TV_JUMP);
+ open_dump_file (DFI_sibling, current_function_decl);
- if (rest_of_handle_inlining (decl))
- goto exit_rest_of_compilation;
+ /* ??? We may get called either via tree_rest_of_compilation when the CFG
+ is already built or directly (for instance from coverage code).
+ The direct callers shall be updated. */
+ if (!basic_block_info)
+ {
+ init_flow ();
+ rebuild_jump_labels (get_insns ());
+ find_exception_handler_labels ();
+ find_basic_blocks (get_insns (), max_reg_num (), dump_file);
+ }
- /* If we're emitting a nested function, make sure its parent gets
- emitted as well. Doing otherwise confuses debug info. */
- {
- tree parent;
- for (parent = DECL_CONTEXT (current_function_decl);
- parent != NULL_TREE;
- parent = get_containing_scope (parent))
- if (TREE_CODE (parent) == FUNCTION_DECL)
- TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (parent)) = 1;
- }
+ /* ??? We may get called either via tree_rest_of_compilation when the CFG
+ is already built or directly (for instance from coverage code).
+ The direct callers shall be updated. */
+ if (!basic_block_info)
+ {
+ init_flow ();
+ rebuild_jump_labels (get_insns ());
+ find_exception_handler_labels ();
+ find_basic_blocks (get_insns (), max_reg_num (), dump_file);
+ }
+ delete_unreachable_blocks ();
+#ifdef ENABLE_CHECKING
+ verify_flow_info ();
+#endif
- /* We are now committed to emitting code for this function. Do any
- preparation, such as emitting abstract debug info for the inline
- before it gets mangled by optimization. */
- if (cgraph_function_possibly_inlined_p (decl))
- (*debug_hooks->outlining_inline_function) (decl);
+ if (cfun->tail_call_emit)
+ fixup_tail_calls ();
- /* Remove any notes we don't need. That will make iterating
- over the instruction sequence faster, and allow the garbage
- collector to reclaim the memory used by the notes. */
- remove_unnecessary_notes ();
- reorder_blocks ();
-
- ggc_collect ();
-
- /* Initialize some variables used by the optimizers. */
- init_function_for_compilation ();
-
- if (! DECL_DEFER_OUTPUT (decl))
- TREE_ASM_WRITTEN (decl) = 1;
-
- /* Now that integrate will no longer see our rtl, we need not
- distinguish between the return value of this function and the
- return value of called functions. Also, we can remove all SETs
- of subregs of hard registers; they are only here because of
- integrate. Also, we can now initialize pseudos intended to
- carry magic hard reg data throughout the function. */
- rtx_equal_function_value_matters = 0;
- purge_hard_subreg_sets (get_insns ());
-
- /* Early return if there were errors. We can run afoul of our
- consistency checks, and there's not really much point in fixing them.
- Don't return yet if -Wreturn-type; we need to do cleanup_cfg. */
- if (((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type)
- || errorcount || sorrycount)
- goto exit_rest_of_compilation;
-
- timevar_push (TV_JUMP);
- open_dump_file (DFI_sibling, decl);
- insns = get_insns ();
- rebuild_jump_labels (insns);
- find_exception_handler_labels ();
- find_basic_blocks (insns, max_reg_num (), dump_file);
-
- delete_unreachable_blocks ();
-
- /* Turn NOTE_INSN_PREDICTIONs into branch predictions. */
- if (flag_guess_branch_prob)
- {
- timevar_push (TV_BRANCH_PROB);
- note_prediction_to_br_prob ();
- timevar_pop (TV_BRANCH_PROB);
- }
-
- if (flag_optimize_sibling_calls)
- rest_of_handle_sibling_calls (insns);
-
- /* We have to issue these warnings now already, because CFG cleanups
- further down may destroy the required information. However, this
- must be done after the sibcall optimization pass because the barrier
- emitted for noreturn calls that are candidate for the optimization
- is folded into the CALL_PLACEHOLDER until after this pass, so the
- CFG is inaccurate. */
- check_function_return_warnings ();
-
- timevar_pop (TV_JUMP);
+ close_dump_file (DFI_sibling, print_rtl, get_insns ());
+ timevar_pop (TV_JUMP);
+}
+static void
+rest_of_handle_eh (void)
+{
insn_locators_initialize ();
/* Complete generation of exception handling code. */
if (doing_eh (0))
{
timevar_push (TV_JUMP);
- open_dump_file (DFI_eh, decl);
+ open_dump_file (DFI_eh, current_function_decl);
+
+ cleanup_cfg (CLEANUP_PRE_LOOP | CLEANUP_NO_INSN_DEL);
finish_eh_generation ();
+ cleanup_cfg (CLEANUP_PRE_LOOP | CLEANUP_NO_INSN_DEL);
+
close_dump_file (DFI_eh, print_rtl, get_insns ());
timevar_pop (TV_JUMP);
}
+}
- /* Delay emitting hard_reg_initial_value sets until after EH landing pad
- generation, which might create new sets. */
- emit_initial_value_sets ();
-#ifdef FINALIZE_PIC
- /* If we are doing position-independent code generation, now
- is the time to output special prologues and epilogues.
- We do not want to do this earlier, because it just clutters
- up inline functions with meaningless insns. */
- if (flag_pic)
- FINALIZE_PIC;
+static void
+rest_of_handle_prologue_epilogue (void)
+{
+ if (optimize && !flow2_completed)
+ cleanup_cfg (CLEANUP_EXPENSIVE);
+
+ /* On some machines, the prologue and epilogue code, or parts thereof,
+ can be represented as RTL. Doing so lets us schedule insns between
+ it and the rest of the code and also allows delayed branch
+ scheduling to operate in the epilogue. */
+ thread_prologue_and_epilogue_insns (get_insns ());
+ epilogue_completed = 1;
+
+ if (optimize && flow2_completed)
+ life_analysis (dump_file, PROP_POSTRELOAD);
+}
+
+static void
+rest_of_handle_stack_adjustments (void)
+{
+ life_analysis (dump_file, PROP_POSTRELOAD);
+ cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_UPDATE_LIFE
+ | (flag_crossjumping ? CLEANUP_CROSSJUMP : 0));
+
+ /* This is kind of a heuristic. We need to run combine_stack_adjustments
+ even for machines with possibly nonzero RETURN_POPS_ARGS
+ and ACCUMULATE_OUTGOING_ARGS. We expect that only ports having
+ push instructions will have popping returns. */
+#ifndef PUSH_ROUNDING
+ if (!ACCUMULATE_OUTGOING_ARGS)
#endif
+ combine_stack_adjustments ();
+}
- insns = get_insns ();
+static void
+rest_of_handle_flow2 (void)
+{
+ timevar_push (TV_FLOW2);
+ open_dump_file (DFI_flow2, current_function_decl);
- /* Copy any shared structure that should not be shared. */
- unshare_all_rtl (current_function_decl, insns);
+ /* Re-create the death notes which were deleted during reload. */
+#ifdef ENABLE_CHECKING
+ verify_flow_info ();
+#endif
-#ifdef SETJMP_VIA_SAVE_AREA
- /* This must be performed before virtual register instantiation.
- Please be aware that everything in the compiler that can look
- at the RTL up to this point must understand that REG_SAVE_AREA
- is just like a use of the REG contained inside. */
- if (current_function_calls_alloca)
- optimize_save_area_alloca (insns);
+ /* If optimizing, then go ahead and split insns now. */
+#ifndef STACK_REGS
+ if (optimize > 0)
#endif
+ split_all_insns (0);
- /* Instantiate all virtual registers. */
- instantiate_virtual_regs (current_function_decl, insns);
+ if (flag_branch_target_load_optimize)
+ rest_of_handle_branch_target_load_optimize ();
+
+ if (!targetm.late_rtl_prologue_epilogue)
+ rest_of_handle_prologue_epilogue ();
+
+ if (optimize)
+ rest_of_handle_stack_adjustments ();
+
+ flow2_completed = 1;
+
+ close_dump_file (DFI_flow2, print_rtl_with_bb, get_insns ());
+ timevar_pop (TV_FLOW2);
+
+ ggc_collect ();
+}
- open_dump_file (DFI_jump, decl);
+
+static void
+rest_of_handle_jump2 (void)
+{
+ open_dump_file (DFI_jump, current_function_decl);
/* Always do one jump optimization pass to ensure that JUMP_LABEL fields
are initialized and to compute whether control can drop off the end
if (flag_guess_branch_prob)
expected_value_to_br_prob ();
- reg_scan (insns, max_reg_num (), 0);
- rebuild_jump_labels (insns);
- find_basic_blocks (insns, max_reg_num (), dump_file);
- delete_trivially_dead_insns (insns, max_reg_num ());
+ delete_trivially_dead_insns (get_insns (), max_reg_num ());
+ reg_scan (get_insns (), max_reg_num (), 0);
if (dump_file)
dump_flow_info (dump_file);
cleanup_cfg ((optimize ? CLEANUP_EXPENSIVE : 0) | CLEANUP_PRE_LOOP
| (flag_thread_jumps ? CLEANUP_THREADING : 0));
- if (optimize)
- {
- free_bb_for_insn ();
- copy_loop_headers (insns);
- find_basic_blocks (insns, max_reg_num (), dump_file);
- }
- purge_line_number_notes (insns);
+ create_loop_notes ();
- timevar_pop (TV_JUMP);
- close_dump_file (DFI_jump, print_rtl, insns);
-
- /* Now is when we stop if -fsyntax-only and -Wreturn-type. */
- if (rtl_dump_and_exit || flag_syntax_only || DECL_DEFER_OUTPUT (decl))
- goto exit_rest_of_compilation;
-
- timevar_push (TV_JUMP);
+ purge_line_number_notes (get_insns ());
if (optimize)
cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP);
- if (flag_delete_null_pointer_checks)
- rest_of_handle_null_pointer (decl, insns);
-
/* Jump optimization, and the removal of NULL pointer checks, may
have reduced the number of instructions substantially. CSE, and
future passes, allocate arrays whose dimensions involve the
maximum instruction UID, so if we can reduce the maximum UID
we'll save big on memory. */
renumber_insns (dump_file);
- timevar_pop (TV_JUMP);
- close_dump_file (DFI_jump, print_rtl_with_bb, insns);
+ close_dump_file (DFI_jump, print_rtl_with_bb, get_insns ());
+ timevar_pop (TV_JUMP);
ggc_collect ();
+}
- if (optimize > 0)
- rest_of_handle_cse (decl, insns);
+#ifdef HAVE_peephole2
+static void
+rest_of_handle_peephole2 (void)
+{
+ timevar_push (TV_PEEPHOLE2);
+ open_dump_file (DFI_peephole2, current_function_decl);
- rest_of_handle_addressof (decl, insns);
+ peephole2_optimize (dump_file);
- ggc_collect ();
+ close_dump_file (DFI_peephole2, print_rtl_with_bb, get_insns ());
+ timevar_pop (TV_PEEPHOLE2);
+}
+#endif
+
+static void
+rest_of_handle_postreload (void)
+{
+ timevar_push (TV_RELOAD_CSE_REGS);
+ open_dump_file (DFI_postreload, current_function_decl);
+
+ /* Do a very simple CSE pass over just the hard registers. */
+ reload_cse_regs (get_insns ());
+ /* reload_cse_regs can eliminate potentially-trapping MEMs.
+ Remove any EH edges associated with them. */
+ if (flag_non_call_exceptions)
+ purge_all_dead_edges (0);
+
+ close_dump_file (DFI_postreload, print_rtl_with_bb, get_insns ());
+ timevar_pop (TV_RELOAD_CSE_REGS);
+}
+
+static void
+rest_of_handle_shorten_branches (void)
+{
+ /* Shorten branches. */
+ timevar_push (TV_SHORTEN_BRANCH);
+ shorten_branches (get_insns ());
+ timevar_pop (TV_SHORTEN_BRANCH);
+}
+
+static void
+rest_of_clean_state (void)
+{
+ rtx insn, next;
+ coverage_end_function ();
+
+ /* It is very important to decompose the RTL instruction chain here:
+ debug information keeps pointing into CODE_LABEL insns inside the function
+ body. If these remain pointing to the other insns, we end up preserving
+ whole RTL chain and attached detailed debug info in memory. */
+ for (insn = get_insns (); insn; insn = next)
+ {
+ next = NEXT_INSN (insn);
+ NEXT_INSN (insn) = NULL;
+ PREV_INSN (insn) = NULL;
+ }
+
+ /* In case the function was not output,
+ don't leave any temporary anonymous types
+ queued up for sdb output. */
+#ifdef SDB_DEBUGGING_INFO
+ if (write_symbols == SDB_DEBUG)
+ sdbout_types (NULL_TREE);
+#endif
+
+ reload_completed = 0;
+ epilogue_completed = 0;
+ flow2_completed = 0;
+ no_new_pseudos = 0;
+
+ timevar_push (TV_FINAL);
+
+ /* Clear out the insn_length contents now that they are no
+ longer valid. */
+ init_insn_lengths ();
+
+ /* Show no temporary slots allocated. */
+ init_temp_slots ();
+
+ free_basic_block_vars ();
+ free_bb_for_insn ();
+
+ timevar_pop (TV_FINAL);
+
+ if (targetm.binds_local_p (current_function_decl))
+ {
+ int pref = cfun->preferred_stack_boundary;
+ if (cfun->recursive_call_emit
+ && cfun->stack_alignment_needed > cfun->preferred_stack_boundary)
+ pref = cfun->stack_alignment_needed;
+ cgraph_rtl_info (current_function_decl)->preferred_incoming_stack_boundary
+ = pref;
+ }
+
+ /* Make sure volatile mem refs aren't considered valid operands for
+ arithmetic insns. We must call this here if this is a nested inline
+ function, since the above code leaves us in the init_recog state
+ (from final.c), and the function context push/pop code does not
+ save/restore volatile_ok.
+
+ ??? Maybe it isn't necessary for expand_start_function to call this
+ anymore if we do it here? */
+
+ init_recog_no_volatile ();
+
+ /* We're done with this function. Free up memory if we can. */
+ free_after_parsing (cfun);
+ free_after_compilation (cfun);
+}
+\f
+
+/* This function is called from the pass manager in tree-optimize.c
+ after all tree passes have finished for a single function, and we
+ have expanded the function body from trees to RTL.
+ Once we are here, we have decided that we're supposed to output
+ that function, i.e. that we should write assembler code for it.
+
+ We run a series of low-level passes here on the function's RTL
+ representation. Each pass is called via a rest_of_* function. */
+
+void
+rest_of_compilation (void)
+{
+ /* Convert from NOTE_INSN_EH_REGION style notes, and do other
+ sorts of eh initialization. */
+ convert_from_eh_region_ranges ();
+
+ /* If we're emitting a nested function, make sure its parent gets
+ emitted as well. Doing otherwise confuses debug info. */
+ {
+ tree parent;
+ for (parent = DECL_CONTEXT (current_function_decl);
+ parent != NULL_TREE;
+ parent = get_containing_scope (parent))
+ if (TREE_CODE (parent) == FUNCTION_DECL)
+ TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (parent)) = 1;
+ }
+
+ /* We are now committed to emitting code for this function. Do any
+ preparation, such as emitting abstract debug info for the inline
+ before it gets mangled by optimization. */
+ if (cgraph_function_possibly_inlined_p (current_function_decl))
+ (*debug_hooks->outlining_inline_function) (current_function_decl);
+
+ /* Remove any notes we don't need. That will make iterating
+ over the instruction sequence faster, and allow the garbage
+ collector to reclaim the memory used by the notes. */
+ remove_unnecessary_notes ();
+
+ /* Initialize some variables used by the optimizers. */
+ init_function_for_compilation ();
+
+ TREE_ASM_WRITTEN (current_function_decl) = 1;
+
+ /* Early return if there were errors. We can run afoul of our
+ consistency checks, and there's not really much point in fixing them. */
+ if (rtl_dump_and_exit || flag_syntax_only || errorcount || sorrycount)
+ goto exit_rest_of_compilation;
+
+ rest_of_handle_jump ();
+
+ rest_of_handle_eh ();
+
+ /* Delay emitting hard_reg_initial_value sets until after EH landing pad
+ generation, which might create new sets. */
+ emit_initial_value_sets ();
+
+#ifdef FINALIZE_PIC
+ /* If we are doing position-independent code generation, now
+ is the time to output special prologues and epilogues.
+ We do not want to do this earlier, because it just clutters
+ up inline functions with meaningless insns. */
+ if (flag_pic)
+ FINALIZE_PIC;
+#endif
+
+ /* Copy any shared structure that should not be shared. */
+ unshare_all_rtl ();
+
+#ifdef SETJMP_VIA_SAVE_AREA
+ /* This must be performed before virtual register instantiation.
+ Please be aware that everything in the compiler that can look
+ at the RTL up to this point must understand that REG_SAVE_AREA
+ is just like a use of the REG contained inside. */
+ if (current_function_calls_alloca)
+ optimize_save_area_alloca ();
+#endif
+
+ /* Instantiate all virtual registers. */
+ instantiate_virtual_regs ();
+
+ rest_of_handle_jump2 ();
+
+ if (optimize > 0)
+ rest_of_handle_cse ();
if (optimize > 0)
{
if (flag_gcse)
- rest_of_handle_gcse (decl, insns);
+ rest_of_handle_gcse ();
if (flag_loop_optimize)
- rest_of_handle_loop_optimize (decl, insns);
+ rest_of_handle_loop_optimize ();
if (flag_gcse)
- rest_of_handle_jump_bypass (decl, insns);
+ rest_of_handle_jump_bypass ();
}
timevar_push (TV_FLOW);
+ rest_of_handle_cfg ();
- rest_of_handle_cfg (decl, insns);
-
- if (optimize > 0
- || profile_arc_flag || flag_test_coverage || flag_branch_probabilities)
+ if (!flag_tree_based_profiling
+ && (optimize > 0 || profile_arc_flag
+ || flag_test_coverage || flag_branch_probabilities))
{
- rest_of_handle_branch_prob (decl, insns);
+ rtl_register_profile_hooks ();
+ rtl_register_value_prof_hooks ();
+ rest_of_handle_branch_prob ();
if (flag_branch_probabilities
&& flag_profile_values
- && flag_value_profile_transformations)
- rest_of_handle_value_profile_transformations (decl, insns);
+ && (flag_value_profile_transformations
+ || flag_speculative_prefetching))
+ rest_of_handle_value_profile_transformations ();
/* Remove the death notes created for vpt. */
if (flag_profile_values)
}
if (optimize > 0)
- rest_of_handle_if_conversion (decl, insns);
+ rest_of_handle_if_conversion ();
- if (flag_tracer)
- rest_of_handle_tracer (decl, insns);
+ if (optimize > 0 && flag_tracer)
+ rest_of_handle_tracer ();
- if (optimize > 0)
- rest_of_handle_loop2 (decl, insns);
+ if (optimize > 0
+ && flag_loop_optimize2)
+ rest_of_handle_loop2 ();
- if (flag_web)
- rest_of_handle_web (decl, insns);
+ if (optimize > 0 && flag_web)
+ rest_of_handle_web ();
- if (flag_rerun_cse_after_loop)
- rest_of_handle_cse2 (decl, insns);
+ if (optimize > 0 && flag_rerun_cse_after_loop)
+ rest_of_handle_cse2 ();
cse_not_expected = 1;
- rest_of_handle_life (decl, insns);
+ rest_of_handle_life ();
+ timevar_pop (TV_FLOW);
if (optimize > 0)
- rest_of_handle_combine (decl, insns);
+ rest_of_handle_combine ();
- if (flag_if_conversion)
- rest_of_handle_if_after_combine (decl, insns);
+ if (optimize > 0 && flag_if_conversion)
+ rest_of_handle_if_after_combine ();
+
+ /* The optimization to partition hot/cold basic blocks into separate
+ sections of the .o file does not work well with linkonce or with
+ user defined section attributes. Don't call it if either case
+ arises. */
+
+ if (flag_reorder_blocks_and_partition
+ && !DECL_ONE_ONLY (current_function_decl)
+ && !user_defined_section_attribute)
+ rest_of_handle_partition_blocks ();
if (optimize > 0 && (flag_regmove || flag_expensive_optimizations))
- rest_of_handle_regmove (decl, insns);
+ rest_of_handle_regmove ();
/* Do unconditional splitting before register allocation to allow machine
description to add extra information not needed previously. */
split_all_insns (1);
#ifdef OPTIMIZE_MODE_SWITCHING
- timevar_push (TV_MODE_SWITCH);
-
- no_new_pseudos = 0;
- optimize_mode_switching (NULL);
- no_new_pseudos = 1;
-
- timevar_pop (TV_MODE_SWITCH);
+ rest_of_handle_mode_switching ();
#endif
/* Any of the several passes since flow1 will have munged register
lifetime data a bit. We need it to be up to date for scheduling
(see handling of reg_known_equiv in init_alias_analysis). */
- recompute_reg_usage (insns, !optimize_size);
+ recompute_reg_usage (get_insns (), !optimize_size);
#ifdef INSN_SCHEDULING
- rest_of_handle_sched (decl, insns);
+ if (optimize > 0 && flag_modulo_sched)
+ rest_of_handle_sms ();
+
+ if (flag_schedule_insns)
+ rest_of_handle_sched ();
#endif
/* Determine if the current function is a leaf before running reload
epilogue thus changing register elimination offsets. */
current_function_is_leaf = leaf_function_p ();
- timevar_push (TV_LOCAL_ALLOC);
- open_dump_file (DFI_lreg, decl);
-
if (flag_new_regalloc)
{
- if (rest_of_handle_new_regalloc (decl, insns))
+ if (rest_of_handle_new_regalloc ())
goto exit_rest_of_compilation;
}
else
{
- if (rest_of_handle_old_regalloc (decl, insns))
+ if (rest_of_handle_old_regalloc ())
goto exit_rest_of_compilation;
}
- ggc_collect ();
-
- open_dump_file (DFI_postreload, decl);
-
- /* Do a very simple CSE pass over just the hard registers. */
if (optimize > 0)
- {
- timevar_push (TV_RELOAD_CSE_REGS);
- reload_cse_regs (insns);
- /* reload_cse_regs can eliminate potentially-trapping MEMs.
- Remove any EH edges associated with them. */
- if (flag_non_call_exceptions)
- purge_all_dead_edges (0);
- timevar_pop (TV_RELOAD_CSE_REGS);
- }
-
- close_dump_file (DFI_postreload, print_rtl_with_bb, insns);
+ rest_of_handle_postreload ();
if (optimize > 0 && flag_gcse_after_reload)
- rest_of_handle_gcse2 (decl, insns);
+ rest_of_handle_gcse2 ();
- /* Re-create the death notes which were deleted during reload. */
- timevar_push (TV_FLOW2);
- open_dump_file (DFI_flow2, decl);
-
-#ifdef ENABLE_CHECKING
- verify_flow_info ();
-#endif
-
- /* If optimizing, then go ahead and split insns now. */
-#ifndef STACK_REGS
- if (optimize > 0)
-#endif
- split_all_insns (0);
-
- if (flag_branch_target_load_optimize)
- {
- open_dump_file (DFI_branch_target_load, decl);
-
- branch_target_load_optimize (insns, false);
-
- close_dump_file (DFI_branch_target_load, print_rtl_with_bb, insns);
-
- ggc_collect ();
- }
-
- if (optimize)
- cleanup_cfg (CLEANUP_EXPENSIVE);
-
- /* On some machines, the prologue and epilogue code, or parts thereof,
- can be represented as RTL. Doing so lets us schedule insns between
- it and the rest of the code and also allows delayed branch
- scheduling to operate in the epilogue. */
- thread_prologue_and_epilogue_insns (insns);
- epilogue_completed = 1;
-
- if (optimize)
- {
- life_analysis (insns, dump_file, PROP_POSTRELOAD);
- cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_UPDATE_LIFE
- | (flag_crossjumping ? CLEANUP_CROSSJUMP : 0));
-
- /* This is kind of a heuristic. We need to run combine_stack_adjustments
- even for machines with possibly nonzero RETURN_POPS_ARGS
- and ACCUMULATE_OUTGOING_ARGS. We expect that only ports having
- push instructions will have popping returns. */
-#ifndef PUSH_ROUNDING
- if (!ACCUMULATE_OUTGOING_ARGS)
-#endif
- combine_stack_adjustments ();
-
- ggc_collect ();
- }
-
- flow2_completed = 1;
-
- close_dump_file (DFI_flow2, print_rtl_with_bb, insns);
- timevar_pop (TV_FLOW2);
+ rest_of_handle_flow2 ();
#ifdef HAVE_peephole2
if (optimize > 0 && flag_peephole2)
- {
- timevar_push (TV_PEEPHOLE2);
- open_dump_file (DFI_peephole2, decl);
-
- peephole2_optimize (dump_file);
-
- close_dump_file (DFI_peephole2, print_rtl_with_bb, insns);
- timevar_pop (TV_PEEPHOLE2);
- }
+ rest_of_handle_peephole2 ();
#endif
- open_dump_file (DFI_ce3, decl);
- if (optimize)
- /* Last attempt to optimize CFG, as scheduling, peepholing and insn
- splitting possibly introduced more crossjumping opportunities. */
- cleanup_cfg (CLEANUP_EXPENSIVE
- | CLEANUP_UPDATE_LIFE
- | (flag_crossjumping ? CLEANUP_CROSSJUMP : 0));
- if (flag_if_conversion2)
- {
- timevar_push (TV_IFCVT2);
-
- if_convert (1);
-
- timevar_pop (TV_IFCVT2);
- }
- close_dump_file (DFI_ce3, print_rtl_with_bb, insns);
+ if (optimize > 0)
+ rest_of_handle_if_after_reload ();
if (optimize > 0)
{
if (flag_rename_registers || flag_cprop_registers)
- rest_of_handle_regrename (decl, insns);
+ rest_of_handle_regrename ();
- rest_of_handle_reorder_blocks (decl, insns);
+ rest_of_handle_reorder_blocks ();
}
if (flag_branch_target_load_optimize2)
- {
- /* Leave this a warning for now so that it is possible to experiment
- with running this pass twice. In 3.6, we should either make this
- an error, or use separate dump files. */
- if (flag_branch_target_load_optimize)
- warning ("branch target register load optimization is not intended "
- "to be run twice");
-
- open_dump_file (DFI_branch_target_load, decl);
+ rest_of_handle_branch_target_load_optimize ();
- branch_target_load_optimize (insns, true);
-
- close_dump_file (DFI_branch_target_load, print_rtl_with_bb, insns);
+#ifdef LEAF_REGISTERS
+ current_function_uses_only_leaf_regs
+ = optimize > 0 && only_leaf_regs_used () && leaf_function_p ();
+#endif
- ggc_collect ();
- }
+ if (targetm.late_rtl_prologue_epilogue)
+ rest_of_handle_prologue_epilogue ();
#ifdef INSN_SCHEDULING
if (optimize > 0 && flag_schedule_insns_after_reload)
- rest_of_handle_sched2 (decl, insns);
-#endif
-
-#ifdef LEAF_REGISTERS
- current_function_uses_only_leaf_regs
- = optimize > 0 && only_leaf_regs_used () && leaf_function_p ();
+ rest_of_handle_sched2 ();
#endif
#ifdef STACK_REGS
- rest_of_handle_stack_regs (decl, insns);
+ rest_of_handle_stack_regs ();
#endif
compute_alignments ();
if (flag_var_tracking)
- rest_of_handle_variable_tracking (decl, insns);
+ rest_of_handle_variable_tracking ();
/* CFG is no longer maintained up-to-date. */
free_bb_for_insn ();
if (targetm.machine_dependent_reorg != 0)
- rest_of_handle_machine_reorg (decl, insns);
+ rest_of_handle_machine_reorg ();
- purge_line_number_notes (insns);
+ purge_line_number_notes (get_insns ());
cleanup_barriers ();
#ifdef DELAY_SLOTS
- if (optimize > 0 && flag_delayed_branch)
- rest_of_handle_delay_slots (decl, insns);
+ if (flag_delayed_branch)
+ rest_of_handle_delay_slots ();
#endif
#if defined (HAVE_ATTR_length) && !defined (STACK_REGS)
convert_to_eh_region_ranges ();
- /* Shorten branches. */
- timevar_push (TV_SHORTEN_BRANCH);
- shorten_branches (get_insns ());
- timevar_pop (TV_SHORTEN_BRANCH);
+ rest_of_handle_shorten_branches ();
set_nothrow_function_flags ();
- if (current_function_nothrow)
- /* Now we know that this can't throw; set the flag for the benefit
- of other functions later in this translation unit. */
- TREE_NOTHROW (current_function_decl) = 1;
-
- rest_of_handle_final (decl, insns);
- /* Write DBX symbols if requested. */
-
- /* Note that for those inline functions where we don't initially
- know for certain that we will be generating an out-of-line copy,
- the first invocation of this routine (rest_of_compilation) will
- skip over this code by doing a `goto exit_rest_of_compilation;'.
- Later on, wrapup_global_declarations will (indirectly) call
- rest_of_compilation again for those inline functions that need
- to have out-of-line copies generated. During that call, we
- *will* be routed past here. */
-
- timevar_push (TV_SYMOUT);
- (*debug_hooks->function_decl) (decl);
- timevar_pop (TV_SYMOUT);
+ rest_of_handle_final ();
exit_rest_of_compilation:
- coverage_end_function ();
-
- /* In case the function was not output,
- don't leave any temporary anonymous types
- queued up for sdb output. */
-#ifdef SDB_DEBUGGING_INFO
- if (write_symbols == SDB_DEBUG)
- sdbout_types (NULL_TREE);
-#endif
-
- reload_completed = 0;
- epilogue_completed = 0;
- flow2_completed = 0;
- no_new_pseudos = 0;
-
- timevar_push (TV_FINAL);
-
- /* Clear out the insn_length contents now that they are no
- longer valid. */
- init_insn_lengths ();
-
- /* Show no temporary slots allocated. */
- init_temp_slots ();
-
- free_basic_block_vars (0);
- free_bb_for_insn ();
-
- timevar_pop (TV_FINAL);
-
- if (targetm.binds_local_p (current_function_decl))
- {
- int pref = cfun->preferred_stack_boundary;
- if (cfun->recursive_call_emit
- && cfun->stack_alignment_needed > cfun->preferred_stack_boundary)
- pref = cfun->stack_alignment_needed;
- cgraph_rtl_info (current_function_decl)->preferred_incoming_stack_boundary
- = pref;
- }
-
- /* Make sure volatile mem refs aren't considered valid operands for
- arithmetic insns. We must call this here if this is a nested inline
- function, since the above code leaves us in the init_recog state
- (from final.c), and the function context push/pop code does not
- save/restore volatile_ok.
-
- ??? Maybe it isn't necessary for expand_start_function to call this
- anymore if we do it here? */
-
- init_recog_no_volatile ();
-
- /* We're done with this function. Free up memory if we can. */
- free_after_parsing (cfun);
- if (! DECL_DEFER_OUTPUT (decl))
- {
- free_after_compilation (cfun);
- DECL_STRUCT_FUNCTION (decl) = 0;
- }
- cfun = 0;
-
- ggc_collect ();
-
- timevar_pop (TV_REST_OF_COMPILATION);
-}
-
-void
-init_optimization_passes (void)
-{
- open_dump_file (DFI_cgraph, NULL);
- cgraph_dump_file = dump_file;
- dump_file = NULL;
+ rest_of_clean_state ();
}
void
finish_optimization_passes (void)
{
+ enum tree_dump_index i;
+ struct dump_file_info *dfi;
+ char *name;
+
+ timevar_push (TV_DUMP);
if (profile_arc_flag || flag_test_coverage || flag_branch_probabilities)
{
- timevar_push (TV_DUMP);
open_dump_file (DFI_bp, NULL);
-
end_branch_prob ();
-
close_dump_file (DFI_bp, NULL, NULL_RTX);
- timevar_pop (TV_DUMP);
}
if (optimize > 0 && open_dump_file (DFI_combine, NULL))
{
- timevar_push (TV_DUMP);
dump_combine_total_stats (dump_file);
close_dump_file (DFI_combine, NULL, NULL_RTX);
- timevar_pop (TV_DUMP);
}
- dump_file = cgraph_dump_file;
- cgraph_dump_file = NULL;
- close_dump_file (DFI_cgraph, NULL, NULL_RTX);
-
/* Do whatever is necessary to finish printing the graphs. */
if (graph_dump_format != no_graph)
- {
- int i;
-
- for (i = 0; i < (int) DFI_MAX; ++i)
- if (dump_file_tbl[i].initialized && dump_file_tbl[i].graph_dump_p)
- {
- char seq[16];
- char *suffix;
-
- sprintf (seq, DUMPFILE_FORMAT, i);
- suffix = concat (seq, dump_file_tbl[i].extension, NULL);
- finish_graph_dump_file (dump_base_name, suffix);
- free (suffix);
- }
- }
+ for (i = DFI_MIN; (dfi = get_dump_file_info (i)) != NULL; ++i)
+ if (dump_initialized_p (i)
+ && (dfi->flags & TDF_RTL) != 0
+ && (name = get_dump_file_name (i)) != NULL)
+ {
+ finish_graph_dump_file (name);
+ free (name);
+ }
+ timevar_pop (TV_DUMP);
}
-bool
-enable_rtl_dump_file (int letter)
+struct tree_opt_pass pass_rest_of_compilation =
{
- bool matched = false;
- int i;
+ NULL, /* name */
+ NULL, /* gate */
+ rest_of_compilation, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ TV_REST_OF_COMPILATION, /* tv_id */
+ PROP_rtl, /* properties_required */
+ 0, /* properties_provided */
+ PROP_rtl, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ TODO_ggc_collect, /* todo_flags_finish */
+ 0 /* letter */
+};
- if (letter == 'a')
- {
- for (i = 0; i < (int) DFI_MAX; ++i)
- dump_file_tbl[i].enabled = 1;
- matched = true;
- }
- else
- {
- for (i = 0; i < (int) DFI_MAX; ++i)
- if (letter == dump_file_tbl[i].debug_switch)
- {
- dump_file_tbl[i].enabled = 1;
- matched = true;
- }
- }
- return matched;
-}
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