/**
- * Internal datastructures for the chordal register allocator.
+ * Internal data structures for the chordal register allocator.
* @author Sebastian Hack
* @date 25.1.2005
*/
#ifndef _BECHORDAL_T_H
#define _BECHORDAL_T_H
-#define BUILD_GRAPH
+#include "firm_types.h"
+#include "firm_config.h"
+
+#include <stdlib.h>
+
+#include "bitset.h"
+#include "list.h"
+#include "obst.h"
+#include "pset.h"
+#include "pmap.h"
+#include "set.h"
+
+#include "execfreq.h"
+
+#include "be_t.h"
+#include "beifg.h"
+#include "bera.h"
+#include "bearch.h"
+#include "bechordal.h"
+#include "beirgmod.h"
+#include "belive.h"
+#include "beirg.h"
+
+typedef struct _be_ra_chordal_opts_t be_ra_chordal_opts_t;
+
+/** Defines an invalid register index. */
+#define NO_COLOR (-1)
/**
* A liveness interval border.
*/
typedef struct _border_t {
-#ifdef DEBUG_libfirm
- unsigned magic; /**< A magic number for checking. */
-#endif
- struct list_head list; /**< list head for queuing. */
- struct _border_t *other_end; /**< The other end of the border. */
- const ir_node *irn; /**< The node. */
- unsigned step; /**< The number equal to the interval border. */
- unsigned pressure; /**< The pressure at this interval border.
- (The border itself is counting). */
- unsigned is_def : 1; /**< Does this border denote a use or a def. */
- unsigned is_real : 1; /**< Is the def/use real? Or is it just inserted
- at block beginnings or ends to ensure that inside
- a block, each value has one begin and one end. */
+ DEBUG_ONLY(unsigned magic;) /**< A magic number for checking. */
+ struct list_head list; /**< list head for queuing. */
+ struct _border_t *other_end; /**< The other end of the border. */
+ ir_node *irn; /**< The node. */
+ unsigned step; /**< The number equal to the interval border. */
+ unsigned pressure; /**< The pressure at this interval border. (The border itself is counting). */
+ unsigned is_def : 1; /**< Does this border denote a use or a def. */
+ unsigned is_real : 1; /**< Is the def/use real? Or is it just inserted
+ at block beginnings or ends to ensure that inside
+ a block, each value has one begin and one end. */
} border_t;
-#ifdef BUILD_GRAPH
-typedef struct _if_node_t {
- int nnr;
- pset *neighb;
-} if_node_t;
+/**
+ * Environment for each of the chordal register allocator phases
+ */
+struct _be_chordal_env_t {
+ struct obstack obst; /**< An obstack for temporary storage. */
+ be_ra_chordal_opts_t *opts; /**< A pointer to the chordal ra options. */
+ be_irg_t *birg; /**< Back-end IRG session. */
+ ir_graph *irg; /**< The graph under examination. */
+ const arch_register_class_t *cls; /**< The current register class. */
+ pmap *border_heads; /**< Maps blocks to border heads. */
+ be_ifg_t *ifg; /**< The interference graph. */
+ bitset_t *ignore_colors; /**< A set of colors which shall be ignored in register allocation. */
+ DEBUG_ONLY(firm_dbg_module_t *dbg;) /**< Debug module for the chordal register allocator. */
+};
+
+static INLINE struct list_head *_get_block_border_head(const be_chordal_env_t *inf, ir_node *bl) {
+ return pmap_get(inf->border_heads, bl);
+}
+
+#define get_block_border_head(info, bl) _get_block_border_head(info, bl)
+
+#define foreach_border_head(head, pos) list_for_each_entry_reverse(border_t, pos, head, list)
+#define border_next(b) (list_entry((b)->list.next, border_t, list))
+#define border_prev(b) (list_entry((b)->list.prev, border_t, list))
+
+#define chordal_has_class(chordal_env, irn) \
+ arch_irn_consider_in_reg_alloc(chordal_env->birg->main_env->arch_env, chordal_env->cls, irn)
+
+void be_ra_chordal_color(be_chordal_env_t *chordal_env);
+
+enum {
+ /* Dump flags */
+ BE_CH_DUMP_NONE = (1 << 0),
+ BE_CH_DUMP_SPILL = (1 << 1),
+ BE_CH_DUMP_LIVE = (1 << 2),
+ BE_CH_DUMP_COLOR = (1 << 3),
+ BE_CH_DUMP_COPYMIN = (1 << 4),
+ BE_CH_DUMP_SSADESTR = (1 << 5),
+ BE_CH_DUMP_TREE_INTV = (1 << 6),
+ BE_CH_DUMP_CONSTR = (1 << 7),
+ BE_CH_DUMP_SPILLSLOTS = (1 << 8),
+ BE_CH_DUMP_LOWER = (1 << 9),
+ BE_CH_DUMP_APPEL = (1 << 10),
+ BE_CH_DUMP_ALL = 2 * BE_CH_DUMP_APPEL - 1,
+
+ /* lower perm options */
+ BE_CH_LOWER_PERM_SWAP = 1,
+ BE_CH_LOWER_PERM_COPY = 2,
+
+ /* verify options */
+ BE_CH_VRFY_OFF = 1,
+ BE_CH_VRFY_WARN = 2,
+ BE_CH_VRFY_ASSERT = 3,
+};
-typedef struct _if_edge_t {
- int src, tgt;
-} if_edge_t;
+struct _be_ra_chordal_opts_t {
+ int dump_flags;
+ int lower_perm_opt;
+ int vrfy_option;
-set *be_ra_get_ifg(ir_graph *irg); /**< Deprecated. Use be_ra_get_ifg_edges. */
-set *be_ra_get_ifg_edges(ir_graph *irg);
-set *be_ra_get_ifg_nodes(ir_graph *irg);
-#endif
+ char ilp_server[128];
+ char ilp_solver[128];
+};
-extern void be_ra_chordal_spill(ir_graph *irg);
+void be_pre_spill_prepare_constr(be_chordal_env_t *cenv);
#endif /* _BECHORDAL_T_H */
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