return 1;
}
+/* Verify if the location LOCs block is in BLOCKS. */
+
+static bool
+verify_location (pointer_set_t *blocks, location_t loc)
+{
+ tree block = LOCATION_BLOCK (loc);
+ if (block != NULL_TREE
+ && !pointer_set_contains (blocks, block))
+ {
+ error ("location references block not in block tree");
+ return true;
+ }
+ return false;
+}
+
+/* Called via walk_tree. Verify locations of expressions. */
+
+static tree
+verify_expr_location_1 (tree *tp, int *walk_subtrees, void *data)
+{
+ struct pointer_set_t *blocks = (struct pointer_set_t *) data;
+
+ if (!EXPR_P (*tp))
+ {
+ *walk_subtrees = false;
+ return NULL;
+ }
+
+ location_t loc = EXPR_LOCATION (*tp);
+ if (verify_location (blocks, loc))
+ return *tp;
+
+ return NULL;
+}
+
+/* Called via walk_gimple_op. Verify locations of expressions. */
+
+static tree
+verify_expr_location (tree *tp, int *walk_subtrees, void *data)
+{
+ struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
+ return verify_expr_location_1 (tp, walk_subtrees, wi->info);
+}
+
+/* Insert all subblocks of BLOCK into BLOCKS and recurse. */
+
+static void
+collect_subblocks (pointer_set_t *blocks, tree block)
+{
+ tree t;
+ for (t = BLOCK_SUBBLOCKS (block); t; t = BLOCK_CHAIN (t))
+ {
+ pointer_set_insert (blocks, t);
+ collect_subblocks (blocks, t);
+ }
+}
+
/* Verify the GIMPLE statements in the CFG of FN. */
DEBUG_FUNCTION void
{
basic_block bb;
bool err = false;
- struct pointer_set_t *visited, *visited_stmts;
+ struct pointer_set_t *visited, *visited_stmts, *blocks;
timevar_push (TV_TREE_STMT_VERIFY);
visited = pointer_set_create ();
visited_stmts = pointer_set_create ();
+ /* Collect all BLOCKs referenced by the BLOCK tree of FN. */
+ blocks = pointer_set_create ();
+ if (DECL_INITIAL (fn->decl))
+ {
+ pointer_set_insert (blocks, DECL_INITIAL (fn->decl));
+ collect_subblocks (blocks, DECL_INITIAL (fn->decl));
+ }
+
FOR_EACH_BB_FN (bb, fn)
{
gimple_stmt_iterator gsi;
err2 |= verify_gimple_phi (phi);
+ /* Only PHI arguments have locations. */
+ if (gimple_location (phi) != UNKNOWN_LOCATION)
+ {
+ error ("PHI node with location");
+ err2 = true;
+ }
+
for (i = 0; i < gimple_phi_num_args (phi); i++)
{
tree arg = gimple_phi_arg_def (phi, i);
debug_generic_expr (addr);
err2 |= true;
}
+ location_t loc = gimple_phi_arg_location (phi, i);
+ if (virtual_operand_p (gimple_phi_result (phi))
+ && loc != UNKNOWN_LOCATION)
+ {
+ error ("virtual PHI with argument locations");
+ err2 = true;
+ }
+ addr = walk_tree (&arg, verify_expr_location_1, blocks, NULL);
+ if (addr)
+ {
+ debug_generic_expr (addr);
+ err2 = true;
+ }
+ err2 |= verify_location (blocks, loc);
}
if (err2)
}
err2 |= verify_gimple_stmt (stmt);
+ err2 |= verify_location (blocks, gimple_location (stmt));
memset (&wi, 0, sizeof (wi));
wi.info = (void *) visited;
err2 |= true;
}
+ memset (&wi, 0, sizeof (wi));
+ wi.info = (void *) blocks;
+ addr = walk_gimple_op (stmt, verify_expr_location, &wi);
+ if (addr)
+ {
+ debug_generic_expr (addr);
+ err2 |= true;
+ }
+
/* ??? Instead of not checking these stmts at all the walker
should know its context via wi. */
if (!is_gimple_debug (stmt)
pointer_set_destroy (visited);
pointer_set_destroy (visited_stmts);
+ pointer_set_destroy (blocks);
verify_histograms ();
timevar_pop (TV_TREE_STMT_VERIFY);
}