3 * File name: ir/ir/irvrfy.h
4 * Purpose: Check irnodes for correctness.
5 * Author: Christian Schaefer
6 * Modified by: Goetz Lindenmaier. Till Riedel
9 * Copyright: (c) 1998-2003 Universität Karlsruhe
10 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
16 * ir graph verification.
18 * @author Christian Schaefer
27 typedef enum _node_verification_t {
28 NODE_VERIFICATION_OFF = 0, /**< do not verify nodes at all */
29 NODE_VERIFICATION_ON = 1, /**< do node verification and assert on error in debug version */
30 NODE_VERIFICATION_REPORT = 2, /**< do node verification, but report to stderr only */
31 NODE_VERIFICATION_ERROR_ONLY = 3 /**< do node verification, but NEVER do assert nor report */
32 } node_verification_t;
34 /** Select verification of nodes.
36 * Per default the verification is in mode NODE_VERIFICATION_ASSERT.
37 * Turn the verification off during development to check partial implementations.
39 void do_node_verification(node_verification_t mode);
42 * Tests the modes of checknode and its predecessors.
43 * Checknode must be in current_ir_graph.
48 int irn_vrfy(struct ir_node *checknode);
51 * Tests the modes of checknode and its predecessors.
52 * Checknode must be in given ir_graph.
57 int irn_vrfy_irg(struct ir_node *checknode, ir_graph *irg);
60 * Same as irn_vrfy_irg, but temporary sets verification mode to
61 * NODE_VERIFICATION_ERROR_ONLY.
65 int irn_vrfy_irg_dump(struct ir_node *checknode, ir_graph *irg, const char **bad_string);
68 * Calls irn_vrfy for each node in irg.
69 * Graph must be in state "op_pin_state_pinned".
72 * NON-zero on success.
74 int irg_vrfy(ir_graph *irg);
77 * Possible flags for irg_vrfy_bads().
79 enum verify_bad_flags_t {
80 BAD_CF = 1, /**< Bad nodes are allowed as predecessors of Blocks and Phis. */
81 BAD_DF = 2, /**< Bad nodes are allowed as dataflow predecessors. */
82 BAD_BLOCK = 4, /**< Bad nodes are allowed as Block input. */
83 TUPLE = 8 /**< Tuple nodes are allowed. */
87 * Verify occurance of bad nodes in a graph.
89 * @param irg The graph to verify
90 * @param flags combination of verify_bad_flags_t flags describing
91 * which Bads are allowed
92 * @returns a value combined of verify_bad_flags_t indicating the problems found.
94 int irg_vrfy_bads(ir_graph *irg, int flags);
97 * Enable/disable verification of Load/Store nodes with
98 * its entities. If disabled, Store(SymConst(array)) will be allowed
99 * (C-frontend builds this :-)
101 void vrfy_enable_entity_tests(int enable);
103 # endif /* _IRVRFY_H_ */