/* Control flow graph manipulation code for GNU compiler.
- Copyright (C) 1987-2015 Free Software Foundation, Inc.
+ Copyright (C) 1987-2017 Free Software Foundation, Inc.
This file is part of GCC.
#include "config.h"
#include "system.h"
#include "coretypes.h"
-#include "obstack.h"
-#include "ggc.h"
-#include "hash-table.h"
-#include "alloc-pool.h"
-#include "hash-set.h"
-#include "machmode.h"
-#include "vec.h"
-#include "double-int.h"
-#include "input.h"
-#include "alias.h"
-#include "symtab.h"
-#include "options.h"
-#include "wide-int.h"
-#include "inchash.h"
-#include "tree.h"
-#include "predict.h"
-#include "vec.h"
-#include "hashtab.h"
-#include "hash-set.h"
-#include "machmode.h"
-#include "tm.h"
+#include "backend.h"
#include "hard-reg-set.h"
-#include "input.h"
-#include "function.h"
-#include "dominance.h"
-#include "cfg.h"
-#include "cfganal.h"
-#include "basic-block.h"
+#include "tree.h"
+#include "cfghooks.h"
#include "df.h"
+#include "cfganal.h"
#include "cfgloop.h" /* FIXME: For struct loop. */
#include "dumpfile.h"
without actually removing it from the pred/succ arrays. */
static void
-free_edge (edge e)
+free_edge (function *fn, edge e)
{
- n_edges_for_fn (cfun)--;
+ n_edges_for_fn (fn)--;
ggc_free (e);
}
/* Free the memory associated with the edge structures. */
void
-clear_edges (void)
+clear_edges (struct function *fn)
{
basic_block bb;
edge e;
edge_iterator ei;
- FOR_EACH_BB_FN (bb, cfun)
+ FOR_EACH_BB_FN (bb, fn)
{
FOR_EACH_EDGE (e, ei, bb->succs)
- free_edge (e);
+ free_edge (fn, e);
vec_safe_truncate (bb->succs, 0);
vec_safe_truncate (bb->preds, 0);
}
- FOR_EACH_EDGE (e, ei, ENTRY_BLOCK_PTR_FOR_FN (cfun)->succs)
- free_edge (e);
- vec_safe_truncate (EXIT_BLOCK_PTR_FOR_FN (cfun)->preds, 0);
- vec_safe_truncate (ENTRY_BLOCK_PTR_FOR_FN (cfun)->succs, 0);
+ FOR_EACH_EDGE (e, ei, ENTRY_BLOCK_PTR_FOR_FN (fn)->succs)
+ free_edge (fn, e);
+ vec_safe_truncate (EXIT_BLOCK_PTR_FOR_FN (fn)->preds, 0);
+ vec_safe_truncate (ENTRY_BLOCK_PTR_FOR_FN (fn)->succs, 0);
- gcc_assert (!n_edges_for_fn (cfun));
+ gcc_assert (!n_edges_for_fn (fn));
}
\f
/* Allocate memory for basic_block. */
disconnect_src (e);
disconnect_dest (e);
- free_edge (e);
+ free_edge (cfun, e);
}
/* Redirect an edge's successor from one block to another. */
{
basic_block bb;
- FOR_BB_BETWEEN (bb, ENTRY_BLOCK_PTR_FOR_FN (cfun), NULL, next_bb)
+ FOR_ALL_BB_FN (bb, cfun)
bb->flags &= BB_FLAGS_TO_PRESERVE;
}
\f
if (bb != EXIT_BLOCK_PTR_FOR_FN (fun))
{
+ bool found = false;
FOR_EACH_EDGE (e, ei, bb->succs)
- sum += e->probability;
- if (EDGE_COUNT (bb->succs) && abs (sum - REG_BR_PROB_BASE) > 100)
- fprintf (file, "%s%sInvalid sum of outgoing probabilities %.1f%%\n",
- (flags & TDF_COMMENT) ? ";; " : "", s_indent,
- sum * 100.0 / REG_BR_PROB_BASE);
- lsum = 0;
- FOR_EACH_EDGE (e, ei, bb->succs)
- lsum += e->count;
- if (EDGE_COUNT (bb->succs)
- && (lsum - bb->count > 100 || lsum - bb->count < -100))
- fprintf (file, "%s%sInvalid sum of outgoing counts %i, should be %i\n",
- (flags & TDF_COMMENT) ? ";; " : "", s_indent,
- (int) lsum, (int) bb->count);
+ {
+ if (!(e->flags & EDGE_EH))
+ found = true;
+ sum += e->probability;
+ }
+ /* Only report mismatches for non-EH control flow. If there are only EH
+ edges it means that the BB ends by noreturn call. Here the control
+ flow may just terminate. */
+ if (found)
+ {
+ if (EDGE_COUNT (bb->succs) && abs (sum - REG_BR_PROB_BASE) > 100)
+ fprintf (file, "%s%sInvalid sum of outgoing probabilities %.1f%%\n",
+ (flags & TDF_COMMENT) ? ";; " : "", s_indent,
+ sum * 100.0 / REG_BR_PROB_BASE);
+ lsum = 0;
+ FOR_EACH_EDGE (e, ei, bb->succs)
+ lsum += e->count;
+ if (EDGE_COUNT (bb->succs)
+ && (lsum - bb->count > 100 || lsum - bb->count < -100))
+ fprintf (file, "%s%sInvalid sum of outgoing counts %i, should be %i\n",
+ (flags & TDF_COMMENT) ? ";; " : "", s_indent,
+ (int) lsum, (int) bb->count);
+ }
}
if (bb != ENTRY_BLOCK_PTR_FOR_FN (fun))
{
int index2;
};
-struct bb_copy_hasher : typed_noop_remove <htab_bb_copy_original_entry>
+struct bb_copy_hasher : nofree_ptr_hash <htab_bb_copy_original_entry>
{
- typedef htab_bb_copy_original_entry *value_type;
- typedef htab_bb_copy_original_entry *compare_type;
static inline hashval_t hash (const htab_bb_copy_original_entry *);
static inline bool equal (const htab_bb_copy_original_entry *existing,
const htab_bb_copy_original_entry * candidate);
/* And between loops and copies. */
static hash_table<bb_copy_hasher> *loop_copy;
-static pool_allocator<htab_bb_copy_original_entry> *original_copy_bb_pool;
+static object_allocator<htab_bb_copy_original_entry> *original_copy_bb_pool;
/* Initialize the data structures to maintain mapping between blocks
and its copies. */
void
initialize_original_copy_tables (void)
{
-
- original_copy_bb_pool = new pool_allocator<htab_bb_copy_original_entry>
- ("original_copy", 10);
+ original_copy_bb_pool = new object_allocator<htab_bb_copy_original_entry>
+ ("original_copy");
bb_original = new hash_table<bb_copy_hasher> (10);
bb_copy = new hash_table<bb_copy_hasher> (10);
loop_copy = new hash_table<bb_copy_hasher> (10);
}
+/* Reset the data structures to maintain mapping between blocks and
+ its copies. */
+
+void
+reset_original_copy_tables (void)
+{
+ gcc_assert (original_copy_bb_pool);
+ bb_original->empty ();
+ bb_copy->empty ();
+ loop_copy->empty ();
+}
+
/* Free the data structures to maintain mapping between blocks and
its copies. */
void
delete bb_copy;
bb_copy = NULL;
delete bb_original;
- bb_copy = NULL;
+ bb_original = NULL;
delete loop_copy;
loop_copy = NULL;
delete original_copy_bb_pool;
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