/**
* Start a walk over the irg and check the register pressure.
*/
-int be_verify_register_pressure(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_graph *irg) {
+int be_verify_register_pressure(const be_irg_t *birg, const arch_register_class_t *cls, ir_graph *irg) {
be_verify_register_pressure_env_t env;
env.lv = be_liveness(irg);
env.irg = irg;
- env.arch_env = arch_env;
+ env.arch_env = birg->main_env->arch_env;
env.cls = cls;
- env.registers_available = arch_count_non_ignore_regs(arch_env, cls);
+ env.registers_available = env.cls->n_regs - be_put_ignore_regs(birg, env.cls, NULL);
env.problem_found = 0;
irg_block_walk_graph(irg, verify_liveness_walker, NULL, &env);
int cfchange_found = 0;
// TODO ask arch about delay branches
int delay_branches = 0;
- pset *uses = pset_new_ptr_default();
/*
* Tests for the following things:
}
// 3. Check for uses
- if(pset_find_ptr(uses, node)) {
- ir_fprintf(stderr, "Verify Warning: Value %+F used before it was defined in block %+F (%s)\n",
- node, block, get_irg_dump_name(env->irg));
- env->problem_found = 1;
- }
if(!is_Phi(node)) {
+ int nodetime = sched_get_time_step(node);
for(i = 0, arity = get_irn_arity(node); i < arity; ++i) {
- pset_insert_ptr(uses, get_irn_n(node, i));
+ ir_node *arg = get_irn_n(node, i);
+ if(get_nodes_block(arg) != block
+ || !sched_is_scheduled(arg))
+ continue;
+
+ if(sched_get_time_step(arg) >= nodetime) {
+ ir_fprintf(stderr, "Verify Warning: Value %+F used by %+F before it was defined in block %+F (%s)\n",
+ arg, node, block, get_irg_dump_name(env->irg));
+ env->problem_found = 1;
+ }
}
}
+
+ // 4. check for dead nodes
+ if(get_irn_n_edges(node) == 0) {
+ ir_fprintf(stderr, "Verify warning: Node %+F is dead but scheduled in block %+F (%s)\n",
+ node, block, get_irg_dump_name(env->irg));
+ env->problem_found = 1;
+ }
}
- del_pset(uses);
/* check that all delay branches are filled (at least with NOPs) */
if (cfchange_found && delay_branches != 0) {
} spill_t;
typedef struct {
- be_lv_t *lv;
+ const arch_env_t *arch_env;
ir_graph *irg;
set *spills;
ir_node **reloads;
return res;
}
+static ir_node *get_memory_edge(const ir_node *node) {
+ int i, arity;
+ ir_node *result = NULL;
+
+ arity = get_irn_arity(node);
+ for(i = arity - 1; i >= 0; --i) {
+ ir_node *arg = get_irn_n(node, i);
+ if(get_irn_mode(arg) == mode_M) {
+ assert(result == NULL);
+ result = arg;
+ }
+ }
+
+ return result;
+}
+
static void collect(be_verify_spillslots_env_t *env, ir_node *node, ir_node *reload, entity* ent);
static void check_entity(be_verify_spillslots_env_t *env, ir_node *node, entity *ent) {
}
static void collect_spill(be_verify_spillslots_env_t *env, ir_node *node, ir_node *reload, entity* ent) {
- entity *spillent = be_get_frame_entity(node);
+ entity *spillent = arch_get_frame_entity(env->arch_env, node);
check_entity(env, node, spillent);
get_spill(env, node, ent);
*/
static void collect_spills_walker(ir_node *node, void *data) {
be_verify_spillslots_env_t *env = data;
+ const arch_env_t *arch_env = env->arch_env;
- if(be_is_Reload(node)) {
- ir_node *spill = get_irn_n(node, be_pos_Reload_mem);
- entity* ent = be_get_frame_entity(node);
+ // @@@ ia32_classify returns classification of Proj_pred :-/
+ if(is_Proj(node))
+ return;
+
+ if(arch_irn_class_is(arch_env, node, reload)) {
+ ir_node *spill = get_memory_edge(node);
+ entity *ent;
+
+ if(spill == NULL) {
+ ir_fprintf(stderr, "Verify warning: No spill attached to reload %+F in block %+F(%s)\n",
+ node, get_nodes_block(node), get_irg_dump_name(env->irg));
+ env->problem_found = 1;
+ return;
+ }
+ ent = arch_get_frame_entity(env->arch_env, node);
check_entity(env, node, ent);
collect(env, spill, node, ent);
sp2->spill, get_nodes_block(sp2->spill), get_irg_dump_name(env->irg));
env->problem_found = 1;
my_values_interfere(sp1->spill, sp2->spill);
- printf("Intf: %d\n", values_interfere(env->lv, sp1->spill, sp2->spill));
}
}
}
if(be_is_Spill(node) || (is_Proj(node) && be_is_MemPerm(get_Proj_pred(node)))) {
spill_t *spill = find_spill(env, node);
if(be_is_Spill(node)) {
- entity *ent = be_get_frame_entity(node);
+ entity *ent = arch_get_frame_entity(env->arch_env, node);
check_entity(env, node, ent);
}
}
}
-int be_verify_spillslots(ir_graph *irg)
+int be_verify_spillslots(const arch_env_t *arch_env, ir_graph *irg)
{
be_verify_spillslots_env_t env;
+ env.arch_env = arch_env;
env.irg = irg;
env.spills = new_set(cmp_spill, 10);
env.reloads = NEW_ARR_F(ir_node*, 0);
env.problem_found = 0;
- env.lv = be_liveness(irg);
irg_walk_graph(irg, collect_spills_walker, NULL, &env);
irg_walk_graph(irg, check_lonely_spills, NULL, &env);
check_spillslot_interference(&env);
- be_liveness_free(env.lv);
DEL_ARR_F(env.reloads);
del_set(env.spills);
const arch_register_class_t *regclass, pset *nodes) {
const arch_env_t *arch_env = env->arch_env;
ir_node *node;
+ const arch_register_t *reg = NULL;
+ int fail = 0;
bitset_t *registers = bitset_alloca(arch_register_class_n_regs(regclass));
foreach_pset(nodes, node) {
- const arch_register_t *reg;
if(arch_get_irn_reg_class(arch_env, node, -1) != regclass)
continue;
env->problem_found = 1;
continue;
}
- if(bitset_is_set(registers, reg->index)) {
- ir_fprintf(stderr, "Verify warning: Register %s assigned more than once at node %+F in block %+F(%s)\n",
+ if(!arch_reg_is_allocatable(arch_env, node, -1, reg)) {
+ ir_fprintf(stderr, "Verify warning: Register %s assigned to %+F not allowed (register constraint) in block %+F(%s)\n",
reg->name, node, get_nodes_block(node), get_irg_dump_name(env->irg));
env->problem_found = 1;
- continue;
+ }
+ if(bitset_is_set(registers, reg->index)) {
+ pset_break(nodes);
+ fail = 1;
+ break;
}
bitset_set(registers, reg->index);
}
+ if (fail) {
+ ir_fprintf(stderr, "Verify warning: Register %s assigned more than once in block %+F(%s)\n",
+ reg->name, get_nodes_block(node), get_irg_dump_name(env->irg));
+ env->problem_found = 1;
+
+ foreach_pset(nodes, node) {
+ if (arch_get_irn_register(arch_env, node) == reg) {
+ ir_fprintf(stderr, " at node %+F\n", node);
+ }
+ }
+ }
}
static void verify_block_register_allocation(ir_node *block, void *data) {
return !env.problem_found;
}
+
+
+
+//---------------------------------------------------------------------------
+
+
+
+typedef struct _verify_out_dead_nodes_env {
+ ir_graph *irg;
+ bitset_t *reachable;
+ bitset_t *visited;
+ int problem_found;
+} verify_out_dead_nodes_env;
+
+static void check_out_edges(ir_node *node, verify_out_dead_nodes_env *env) {
+ const ir_edge_t* edge;
+
+ foreach_out_edge(node, edge) {
+ ir_node* src = get_edge_src_irn(edge);
+
+ if(!bitset_is_set(env->reachable, get_irn_idx(src))) {
+ ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) only reachable through out edges from %+F\n",
+ src, get_nodes_block(src), get_irg_dump_name(env->irg), node);
+ env->problem_found = 1;
+ }
+
+ if(!bitset_is_set(env->visited, get_irn_idx(src))) {
+ bitset_set(env->visited, get_irn_idx(src));
+ if(!is_Block(src))
+ check_out_edges(src, env);
+ }
+ }
+}
+
+static void set_reachable(ir_node *node, void* data)
+{
+ bitset_t* reachable = data;
+ bitset_set(reachable, get_irn_idx(node));
+}
+
+int be_verify_out_edges(ir_graph *irg) {
+ verify_out_dead_nodes_env env;
+ env.irg = irg;
+ env.reachable = bitset_alloca(get_irg_last_idx(irg));
+ env.visited = bitset_alloca(get_irg_last_idx(irg));
+ env.problem_found = 0;
+
+ irg_walk_graph(irg, set_reachable, NULL, env.reachable);
+ check_out_edges(get_irg_start(irg), &env);
+
+ return !env.problem_found;
+}
projects / libfirm / blobdiff