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authorJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
committerJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
commitb094d6c4bf572654a031ecc4afe675154c886dc5 (patch)
tree89394c56b05e13a5413ee60237d65b0214fd98e2 /gcc-4.4.3/gcc/graphds.h
parentdc34721ac3bf7e3c406fba8cfe9d139393345ec5 (diff)
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commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.
The source is based on fsf gcc-4.4.3 and contains local patches which are recorded in gcc-4.4.3/README.google. Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887
Diffstat (limited to 'gcc-4.4.3/gcc/graphds.h')
-rw-r--r--gcc-4.4.3/gcc/graphds.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/gcc-4.4.3/gcc/graphds.h b/gcc-4.4.3/gcc/graphds.h
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+++ b/gcc-4.4.3/gcc/graphds.h
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+/* Graph representation.
+ Copyright (C) 2007, 2008
+ Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+/* Structure representing edge of a graph. */
+
+struct graph_edge
+{
+ int src, dest; /* Source and destination. */
+ struct graph_edge *pred_next, *succ_next;
+ /* Next edge in predecessor and successor lists. */
+ void *data; /* Data attached to the edge. */
+};
+
+/* Structure representing vertex of a graph. */
+
+struct vertex
+{
+ struct graph_edge *pred, *succ;
+ /* Lists of predecessors and successors. */
+ int component; /* Number of dfs restarts before reaching the
+ vertex. */
+ int post; /* Postorder number. */
+ void *data; /* Data attached to the vertex. */
+};
+
+/* Structure representing a graph. */
+
+struct graph
+{
+ int n_vertices; /* Number of vertices. */
+ struct vertex *vertices;
+ /* The vertices. */
+ htab_t indices; /* Fast lookup for indices. */
+};
+
+struct graph *new_graph (int);
+void dump_graph (FILE *, struct graph *);
+struct graph_edge *add_edge (struct graph *, int, int);
+void identify_vertices (struct graph *, int, int);
+int graphds_dfs (struct graph *, int *, int,
+ VEC (int, heap) **, bool, bitmap);
+int graphds_scc (struct graph *, bitmap);
+void graphds_domtree (struct graph *, int, int *, int *, int *);
+typedef void (*graphds_edge_callback) (struct graph *, struct graph_edge *);
+void for_each_edge (struct graph *, graphds_edge_callback);
+void free_graph (struct graph *g);