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Diffstat (limited to 'gcc/cgraph.h')
| -rw-r--r-- | gcc/cgraph.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/cgraph.h b/gcc/cgraph.h new file mode 100644 index 00000000000..8dd37ed9e32 --- /dev/null +++ b/gcc/cgraph.h @@ -0,0 +1,80 @@ +/* Callgraph handling code. + Copyright (C) 2003 Free Software Foundation, Inc. + Contributed by Jan Hubicka + +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 2, 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 COPYING. If not, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ + +#ifndef GCC_CGRAPH_H +#define GCC_CGRAPH_H + +/* The cgraph data strutcture. + Each function decl has assigned cgraph_node listing calees and callers. */ + +struct cgraph_node +{ + tree decl; + struct cgraph_edge *callees; + struct cgraph_edge *callers; + struct cgraph_node *next; + /* For nested functions points to function the node is nested in. */ + struct cgraph_node *origin; + /* Points to first nested function, if any. */ + struct cgraph_node *nested; + /* Pointer to the next function with same origin, if any. */ + struct cgraph_node *next_nested; + void *aux; + + /* Set when function must be output - it is externally visible + or it's address is taken. */ + bool needed; + /* Set when function is reachable by call from other function + that is eighter reachable or needed. */ + bool reachable; + /* Set when the frontend has been asked to lower representation of this + function into trees. Callees lists are not available when lowered + is not set. */ + bool lowered; + /* Set when function is scheduled to be assembled. */ + bool output; +}; + +struct cgraph_edge +{ + struct cgraph_node *caller, *callee; + struct cgraph_edge *next_caller; + struct cgraph_edge *next_callee; +}; + +extern struct cgraph_node *cgraph_nodes; +extern int cgraph_n_nodes; + +/* In cgraph.c */ +void dump_cgraph PARAMS ((FILE *)); +void cgraph_remove_call PARAMS ((tree, tree)); +struct cgraph_edge *cgraph_record_call PARAMS ((tree, tree)); +struct cgraph_node *cgraph_node PARAMS ((tree decl)); +bool cgraph_calls_p PARAMS ((tree, tree)); + +/* In cgraphunit.c */ +void cgraph_finalize_function PARAMS ((tree, tree)); +void cgraph_finalize_compilation_unit PARAMS ((void)); +void cgraph_create_edges PARAMS ((tree, tree)); +void cgraph_optimize PARAMS ((void)); +void cgraph_mark_needed_node PARAMS ((struct cgraph_node *, int)); + +#endif /* GCC_CGRAPH_H */ |