* Modified by: Goetz Lindenmaier. Till Riedel. Michael Beck.
* Created:
* CVS-ID: $Id$
- * Copyright: (c) 1998-2003 Universität Karlsruhe
+ * Copyright: (c) 1998-2003 Universität Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
# include "irvrfy_t.h"
# include "irgwalk.h"
# include "irdump.h"
+# include "irdom_t.h"
+# include "irprintf.h"
+# include "irouts.h"
/** if this flag is set, verify entity types in Load & Store nodes */
static int vrfy_entities = 0;
mode_is_int(op1mode) ), "Cond node", 0
);
ASSERT_AND_RET(mymode == mode_T, "Cond mode is not a tuple", 0);
+
+ if (op1mode == mode_b && get_irg_outs_state(irg) == outs_consistent &&
+ !is_Block_dead(get_nodes_block(n))) {
+ /* we have consistent outs, check for the right number of Proj's */
+ ASSERT_AND_RET(
+ get_irn_n_outs(n) == 2,
+ "Live binary Cond node must have 2 successors", 0);
+ }
return 1;
}
return 1;
}
+/**
+ * verify a CopyB node
+ */
+static int verify_node_CopyB(ir_node *n, ir_graph *irg) {
+ ir_mode *mymode = get_irn_mode(n);
+ ir_mode *op1mode = get_irn_mode(get_CopyB_mem(n));
+ ir_mode *op2mode = get_irn_mode(get_CopyB_dst(n));
+ ir_mode *op3mode = get_irn_mode(get_CopyB_src(n));
+ type *t = get_CopyB_type(n);
+
+ /* CopyB: BB x M x ref x ref --> M x X */
+ ASSERT_AND_RET(
+ mymode == mode_T &&
+ op1mode == mode_M &&
+ mode_is_reference(op2mode) &&
+ mode_is_reference(op3mode),
+ "CopyB node", 0 ); /* operand M x ref x ref */
+
+ ASSERT_AND_RET(
+ is_compound_type(t),
+ "CopyB node should copy compound types only", 0 );
+
+ /* NoMem nodes are only allowed as memory input if the CopyB is NOT pinned.
+ This should happen RARELY, as CopyB COPIES MEMORY */
+ ASSERT_AND_RET(
+ (get_irn_op(get_CopyB_mem(n)) == op_NoMem) ||
+ (get_irn_op(get_CopyB_mem(n)) != op_NoMem && get_irn_pinned(n) == op_pin_state_pinned),
+ "CopyB node with wrong memory input", 0 );
+ return 1;
+}
+
+/*
+ * Check dominance.
+ * For each usage of a node, it is checked, if the block of the
+ * node dominates the block of the usage (for phis: the predecessor
+ * block of the phi for the corresponding edge).
+ */
+static int check_dominance_for_node(ir_node *use)
+{
+ /* This won't work for blocks and the end node */
+ if (!is_Block(use) && use != get_irg_end(current_ir_graph)) {
+ int i;
+ ir_node *bl = get_nodes_block(use);
+
+ for (i = get_irn_arity(use) - 1; i >= 0; --i) {
+ ir_node *def = get_irn_n(use, i);
+ ir_node *def_bl = get_nodes_block(def);
+ ir_node *use_bl = bl;
+
+ /* ignore dead definition blocks, will be removed */
+ if (is_Block_dead(def_bl) || get_Block_dom_depth(def_bl) == -1)
+ continue;
+
+ if (is_Phi(use))
+ use_bl = get_Block_cfgpred_block(bl, i);
+
+ /* ignore dead use blocks, will be removed */
+ if (is_Block_dead(use_bl) || get_Block_dom_depth(use_bl) == -1)
+ continue;
+
+ ASSERT_AND_RET_DBG(
+ block_dominates(def_bl, use_bl),
+ "the definition of a value used violates the dominance property", 0,
+ ir_fprintf(stderr,
+ "graph %+F: %+F of %+F must dominate %+F of user %+F input %d\n",
+ current_ir_graph, def_bl, def, use_bl, use, i
+ );
+ );
+ }
+ }
+ return 1;
+}
+
+/* Tests the modes of n and its predecessors. */
int irn_vrfy_irg(ir_node *n, ir_graph *irg)
{
int i;
ir_op *op;
- if (!opt_do_node_verification) return 1;
+ if (!opt_do_node_verification)
+ return 1;
- if (! get_interprocedural_view()) {
+ if (!get_interprocedural_view()) {
/*
* do NOT check placement in interprocedural view, as we don't always know
* the "right" graph ...
/* Verify the whole graph. */
/*-----------------------------------------------------------------*/
-/* This *is* used, except gcc doesn't notice that */
-static void vrfy_wrap(ir_node *node, void *env)
+#ifdef DEBUG_libfirm
+/**
+ * Walker to check every node
+ */
+static void vrfy_wrap(ir_node *node, void *env) {
+ int *res = env;
+ *res = irn_vrfy(node);
+}
+
+/**
+ * Walker to check every node including SSA property.
+ * Only called if dominance info is available.
+ */
+static void vrfy_wrap_ssa(ir_node *node, void *env)
{
int *res = env;
*res = irn_vrfy(node);
+ if (*res)
+ *res = check_dominance_for_node(node);
}
-int irg_vrfy(ir_graph *irg)
+#endif /* DEBUG_libfirm */
+
+/*
+ * Calls irn_vrfy for each node in irg.
+ * Graph must be in state "op_pin_state_pinned".
+ * If dominance info is available, check the SSA property.
+ */
+int irg_verify(ir_graph *irg, unsigned flags)
{
int res = 1;
#ifdef DEBUG_libfirm
current_ir_graph = irg;
last_irg_error = NULL;
- assert(get_irg_pinned(irg) == op_pin_state_pinned);
+ assert(get_irg_pinned(irg) == op_pin_state_pinned && "Verification need pinned graph");
+
+ if (flags & VRFY_ENFORCE_SSA)
+ compute_doms(irg);
- irg_walk_graph(irg, vrfy_wrap, NULL, &res);
+ irg_walk_graph(
+ irg,
+ get_irg_dom_state(irg) == dom_consistent &&
+ get_irg_pinned(irg) == op_pin_state_pinned ?
+ vrfy_wrap_ssa : vrfy_wrap,
+ NULL, &res
+ );
current_ir_graph = rem;
else
fprintf(stderr, "irg_verify: Verifying graph %p failed\n", (void *)current_ir_graph);
}
+#endif /* DEBUG_libfirm */
-#endif
return res;
}
firm_vrfy_failure_msg = NULL;
opt_do_node_verification = NODE_VERIFICATION_ERROR_ONLY;
res = irn_vrfy_irg(n, irg);
+ if (! res && get_irg_dom_state(irg) == dom_consistent &&
+ get_irg_pinned(irg) == op_pin_state_pinned)
+ res = check_dominance_for_node(n);
opt_do_node_verification = old;
*bad_string = firm_vrfy_failure_msg;
int res;
} vrfy_bad_env_t;
+/**
+ * Pre-Walker: check Bad predecessors of node.
+ */
static void check_bads(ir_node *node, void *env)
{
vrfy_bad_env_t *venv = env;
CASE(Sync);
CASE(Confirm);
CASE(Mux);
+ CASE(CopyB);
default:
op->verify_node = NULL;
}
projects / libfirm / blobdiff