* @brief Various verify routines that check a scheduled graph for correctness.
* @author Matthias Braun
* @date 05.05.2006
- * @version $Id$
*/
#include "config.h"
#include <limits.h>
+#include <stdbool.h>
#include "bitset.h"
#include "set.h"
ir_fprintf(F, "\n");
}
+static const char *get_irg_name(ir_graph *irg)
+{
+ ir_entity *entity = get_irg_entity(irg);
+ return get_entity_ld_name(entity);
+}
+
/**
* Check if number of live nodes never exceeds the number of available registers.
*/
pressure = ir_nodeset_size(&live_nodes);
if (pressure > env->registers_available) {
ir_fprintf(stderr, "Verify Warning: Register pressure too high at end of block %+F(%s) (%d/%d):\n",
- block, get_irg_dump_name(env->irg), pressure, env->registers_available);
+ block, get_irg_name(env->irg), pressure, env->registers_available);
print_living_values(stderr, &live_nodes);
env->problem_found = 1;
}
if (pressure > env->registers_available) {
ir_fprintf(stderr, "Verify Warning: Register pressure too high before node %+F in %+F(%s) (%d/%d):\n",
- irn, block, get_irg_dump_name(env->irg), pressure, env->registers_available);
+ irn, block, get_irg_name(env->irg), pressure, env->registers_available);
print_living_values(stderr, &live_nodes);
env->problem_found = 1;
assert(0);
{
be_verify_register_pressure_env_t env;
- env.lv = be_liveness(irg);
+ env.lv = be_liveness_new(irg);
env.irg = irg;
env.cls = cls;
env.registers_available = be_get_n_allocatable_regs(irg, cls);
env.problem_found = 0;
- be_liveness_assure_sets(env.lv);
+ be_liveness_compute_sets(env.lv);
irg_block_walk_graph(irg, verify_liveness_walker, NULL, &env);
be_liveness_free(env.lv);
return ! env.problem_found;
}
-
-
/*--------------------------------------------------------------------------- */
-
-
typedef struct be_verify_schedule_env_t_ {
int problem_found; /**< flags indicating a problem */
bitset_t *scheduled; /**< bitset of scheduled nodes */
* (except mode_X projs)
*/
sched_foreach(block, node) {
- int i, arity;
int timestep;
/* this node is scheduled */
if (is_Phi(node)) {
if (non_phi_found != NULL) {
ir_fprintf(stderr, "Verify Warning: Phi node %+F scheduled after non-Phi nodes (for example %+F) in block %+F (%s)\n",
- node, non_phi_found, block, get_irg_dump_name(env->irg));
+ node, non_phi_found, block, get_irg_name(env->irg));
env->problem_found = 1;
}
} else {
/* check, that only one CF operation is scheduled */
if (cfchange_found != NULL) {
ir_fprintf(stderr, "Verify Warning: Additional control flow changing node %+F scheduled after %+F in block %+F (%s)\n",
- node, block, cfchange_found, get_irg_dump_name(env->irg));
+ node, block, cfchange_found, get_irg_name(env->irg));
env->problem_found = 1;
} else {
cfchange_found = node;
/* proj and keepany aren't real instructions... */
if (!is_Proj(node) && !be_is_Keep(node)) {
ir_fprintf(stderr, "Verify Warning: Node %+F scheduled after control flow changing node in block %+F (%s)\n",
- node, block, get_irg_dump_name(env->irg));
+ node, block, get_irg_name(env->irg));
env->problem_found = 1;
}
}
/* Check that all uses come before their definitions */
if (!is_Phi(node)) {
+ int i;
+ int arity;
sched_timestep_t nodetime = sched_get_time_step(node);
for (i = 0, arity = get_irn_arity(node); i < arity; ++i) {
ir_node *arg = get_irn_n(node, i);
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));
+ arg, node, block, get_irg_name(env->irg));
env->problem_found = 1;
}
}
/* Check that no dead nodes are scheduled */
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));
+ node, block, get_irg_name(env->irg));
env->problem_found = 1;
}
prev = sched_prev(prev);
while (true) {
+ int i;
for (i = 0; i < arity; ++i) {
ir_node *in = get_irn_n(node, i);
in = skip_Proj(in);
}
if (!found) {
ir_fprintf(stderr, "%+F not scheduled after its pred node in block %+F (%s)\n",
- node, block, get_irg_dump_name(env->irg));
+ node, block, get_irg_name(env->irg));
env->problem_found = 1;
}
}
static void check_schedule(ir_node *node, void *data)
{
be_verify_schedule_env_t *env = (be_verify_schedule_env_t*)data;
- bool should_be = !is_Proj(node) && !(arch_irn_get_flags(node) & arch_irn_flags_not_scheduled);
+ bool should_be = !is_Proj(node) && !(arch_get_irn_flags(node) & arch_irn_flags_not_scheduled);
bool scheduled = bitset_is_set(env->scheduled, get_irn_idx(node));
if (should_be != scheduled) {
ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) should%s be scheduled\n",
- node, get_nodes_block(node), get_irg_dump_name(env->irg), should_be ? "" : " not");
+ node, get_nodes_block(node), get_irg_name(env->irg), should_be ? "" : " not");
env->problem_found = 1;
}
}
spill_t spill;
spill.spill = node;
- return (spill_t*)set_find(env->spills, &spill, sizeof(spill), HASH_PTR(node));
+ return set_find(spill_t, env->spills, &spill, sizeof(spill), hash_ptr(node));
}
static spill_t *get_spill(be_verify_spillslots_env_t *env, ir_node *node, ir_entity *ent)
{
spill_t spill, *res;
- int hash = HASH_PTR(node);
+ int hash = hash_ptr(node);
spill.spill = node;
- res = (spill_t*)set_find(env->spills, &spill, sizeof(spill), hash);
+ res = set_find(spill_t, env->spills, &spill, sizeof(spill), hash);
if (res == NULL) {
spill.ent = ent;
- res = (spill_t*)set_insert(env->spills, &spill, sizeof(spill), hash);
+ res = set_insert(spill_t, env->spills, &spill, sizeof(spill), hash);
}
return res;
{
if (ent == NULL) {
ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) should have an entity assigned\n",
- node, get_nodes_block(node), get_irg_dump_name(env->irg));
+ node, get_nodes_block(node), get_irg_name(env->irg));
}
}
if (spillent != ent) {
ir_fprintf(stderr, "Verify warning: Spill %+F has different entity than reload %+F in block %+F(%s)\n",
- node, reload, get_nodes_block(node), get_irg_dump_name(env->irg));
+ node, reload, get_nodes_block(node), get_irg_name(env->irg));
env->problem_found = 1;
}
}
{
int i, arity;
spill_t spill, *res;
- int hash = HASH_PTR(node);
+ int hash = hash_ptr(node);
int out;
ir_node* memperm;
ir_entity *spillent;
be_check_entity(env, memperm, spillent);
if (spillent != ent) {
ir_fprintf(stderr, "Verify warning: MemPerm %+F has different entity than reload %+F in block %+F(%s)\n",
- node, reload, get_nodes_block(node), get_irg_dump_name(env->irg));
+ node, reload, get_nodes_block(node), get_irg_name(env->irg));
env->problem_found = 1;
}
spill.spill = node;
- res = (spill_t*)set_find(env->spills, &spill, sizeof(spill), hash);
+ res = set_find(spill_t, env->spills, &spill, sizeof(spill), hash);
if (res != NULL) {
return;
}
spill.ent = spillent;
- res = (spill_t*)set_insert(env->spills, &spill, sizeof(spill), hash);
+ res = set_insert(spill_t, env->spills, &spill, sizeof(spill), hash);
for (i = 0, arity = be_get_MemPerm_entity_arity(memperm); i < arity; ++i) {
ir_node* arg = get_irn_n(memperm, i + 1);
{
int i, arity;
spill_t spill, *res;
- int hash = HASH_PTR(node);
+ int hash = hash_ptr(node);
assert(is_Phi(node));
spill.spill = node;
- res = (spill_t*)set_find(env->spills, &spill, sizeof(spill), hash);
+ res = set_find(spill_t, env->spills, &spill, sizeof(spill), hash);
if (res != NULL) {
return;
}
spill.ent = ent;
- res = (spill_t*)set_insert(env->spills, &spill, sizeof(spill), hash);
+ res = set_insert(spill_t, env->spills, &spill, sizeof(spill), hash);
/* is 1 of the arguments a spill? */
for (i = 0, arity = get_irn_arity(node); i < arity; ++i) {
/* Disabled for now, spills might get transformed by the backend */
#if 0
ir_fprintf(stderr, "Verify warning: No spill, memperm or memphi attached to node %+F found from node %+F in block %+F(%s)\n",
- node, reload, get_nodes_block(node), get_irg_dump_name(env->irg));
+ node, reload, get_nodes_block(node), get_irg_name(env->irg));
env->problem_found = 1;
#endif
}
{
be_verify_spillslots_env_t *env = (be_verify_spillslots_env_t*)data;
- if (arch_irn_classify(node) & arch_irn_class_reload) {
+ if (be_is_Reload(node)) {
ir_node *spill = get_memory_edge(node);
ir_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));
+ node, get_nodes_block(node), get_irg_name(env->irg));
env->problem_found = 1;
return;
}
{
int spillcount = set_count(env->spills);
spill_t **spills = ALLOCAN(spill_t*, spillcount);
- spill_t *spill;
int i;
i = 0;
- foreach_set(env->spills, spill_t*, spill) {
+ foreach_set(env->spills, spill_t, spill) {
spills[i++] = spill;
}
if (my_values_interfere(sp1->spill, sp2->spill)) {
ir_fprintf(stderr, "Verify warning: Spillslots for %+F in block %+F(%s) and %+F in block %+F(%s) interfere\n",
- sp1->spill, get_nodes_block(sp1->spill), get_irg_dump_name(env->irg),
- sp2->spill, get_nodes_block(sp2->spill), get_irg_dump_name(env->irg));
+ sp1->spill, get_nodes_block(sp1->spill), get_irg_name(env->irg),
+ sp2->spill, get_nodes_block(sp2->spill), get_irg_name(env->irg));
env->problem_found = 1;
my_values_interfere(sp1->spill, sp2->spill);
}
}
if (spill == NULL) {
- ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) not connected to a reaload\n",
- node, get_nodes_block(node), get_irg_dump_name(env->irg));
+ ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) not connected to a reload\n",
+ node, get_nodes_block(node), get_irg_name(env->irg));
}
}
}
static const arch_env_t *arch_env;
static ir_graph *irg;
static be_lv_t *lv;
-static int problem_found;
-static const arch_register_class_t *regclass;
-static ir_node **registers;
+static bool problem_found;
+static const ir_node **registers;
-static void check_output_constraints(ir_node *node)
+static void check_output_constraints(const ir_node *node)
{
+ if (arch_get_irn_reg_class(node) == NULL)
+ return;
+
/* verify output register */
- if (arch_get_irn_reg_class_out(node) == regclass) {
- const arch_register_t *reg = arch_get_irn_register(node);
- if (reg == NULL) {
- ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) should have a register assigned\n",
- node, get_nodes_block(node), get_irg_dump_name(irg));
- problem_found = 1;
- } else if (!(reg->type & arch_register_type_joker) && !arch_reg_out_is_allocatable(node, reg)) {
- ir_fprintf(stderr, "Verify warning: Register %s assigned as output of %+F not allowed (register constraint) in block %+F(%s)\n",
- reg->name, node, get_nodes_block(node), get_irg_dump_name(irg));
- problem_found = 1;
- }
+ const arch_register_req_t *req = arch_get_irn_register_req(node);
+ const arch_register_t *reg = arch_get_irn_register(node);
+ if (reg == NULL) {
+ ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) should have a register assigned\n",
+ node, get_nodes_block(node), get_irg_name(irg));
+ problem_found = true;
+ } else if (!arch_reg_is_allocatable(req, reg)) {
+ ir_fprintf(stderr, "Verify warning: Register %s assigned as output of %+F not allowed (register constraint) in block %+F(%s)\n",
+ reg->name, node, get_nodes_block(node), get_irg_name(irg));
+ problem_found = true;
}
}
/* verify input register */
arity = get_irn_arity(node);
for (i = 0; i < arity; ++i) {
- const arch_register_req_t *req = arch_get_in_register_req(node, i);
+ const arch_register_req_t *req = arch_get_irn_register_req_in(node, i);
ir_node *pred = get_irn_n(node, i);
- const arch_register_req_t *pred_req = arch_get_register_req_out(pred);
+ const arch_register_req_t *pred_req = arch_get_irn_register_req(pred);
if (is_Bad(pred)) {
ir_fprintf(stderr, "Verify warning: %+F in block %+F(%s) has Bad as input %d\n",
- node, get_nodes_block(node), get_irg_dump_name(irg), i);
+ node, get_nodes_block(node), get_irg_name(irg), i);
problem_found = 1;
continue;
}
if (req->width > pred_req->width) {
ir_fprintf(stderr, "Verify warning: %+F in block %+F(%s) register width of value at input %d too small\n",
- node, get_nodes_block(node), get_irg_dump_name(irg), i);
+ node, get_nodes_block(node), get_irg_name(irg), i);
problem_found = 1;
}
if (req->type & arch_register_req_type_aligned) {
if (reg->index % req->width != 0) {
ir_fprintf(stderr, "Verify warning: %+F in block %+F(%s) register allignment not fulfilled\n",
- node, get_nodes_block(node), get_irg_dump_name(irg), i);
+ node, get_nodes_block(node), get_irg_name(irg), i);
problem_found = 1;
}
}
if (reg == NULL) {
ir_fprintf(stderr, "Verify warning: Node %+F in block %+F(%s) should have a register assigned (%+F input constraint)\n",
- pred, get_nodes_block(pred), get_irg_dump_name(irg), node);
+ pred, get_nodes_block(pred), get_irg_name(irg), node);
problem_found = 1;
continue;
- } else if (!(reg->type & arch_register_type_joker) && ! arch_reg_is_allocatable(node, i, reg)) {
+ } else if (!arch_reg_is_allocatable(req, reg)) {
ir_fprintf(stderr, "Verify warning: Register %s as input %d of %+F not allowed (register constraint) in block %+F(%s)\n",
- reg->name, i, node, get_nodes_block(node), get_irg_dump_name(irg));
+ reg->name, i, node, get_nodes_block(node), get_irg_name(irg));
problem_found = 1;
}
}
/* phis should be NOPs at this point, which means all input regs
* must be the same as the output reg */
if (is_Phi(node)) {
- int i, arity;
-
reg = arch_get_irn_register(node);
arity = get_irn_arity(node);
const char *reg_name = reg != NULL ? reg->name : "(null)";
ir_fprintf(stderr, "Verify warning: Input %d of %+F in block %+F(%s) uses register %s instead of %s\n",
i, node, get_nodes_block(node),
- get_irg_dump_name(irg), pred_name, reg_name);
+ get_irg_name(irg), pred_name, reg_name);
problem_found = 1;
}
}
}
}
-static void value_used(ir_node *block, ir_node *node)
+static void value_used(const ir_node *block, const ir_node *node)
{
- const arch_register_t *reg;
- ir_node *reg_node;
-
- if (arch_get_irn_reg_class_out(node) != regclass)
- return;
+ const arch_register_t *reg = arch_get_irn_register(node);
+ const arch_register_req_t *req;
+ unsigned i;
+ unsigned idx;
- reg = arch_get_irn_register(node);
if (reg == NULL || reg->type & arch_register_type_virtual)
return;
- reg_node = registers[reg->index];
- if (reg_node != NULL && reg_node != node) {
- ir_fprintf(stderr, "Verify warning: Register %s assigned more than once in block %+F(%s) (nodes %+F %+F)\n",
- reg->name, block, get_irg_dump_name(irg),
- node, reg_node);
- problem_found = 1;
+ req = arch_get_irn_register_req(node);
+ assert(req->width > 0);
+ idx = reg->global_index;
+ for (i = 0; i < req->width; ++i) {
+ const ir_node *reg_node = registers[idx+i];
+ if (reg_node != NULL && reg_node != node) {
+ const arch_register_t *realreg = &arch_env->registers[idx+i];
+ ir_fprintf(stderr, "Verify warning: Register %s assigned more than once in block %+F(%s) (nodes %+F %+F)\n",
+ realreg->name, block, get_irg_name(irg),
+ node, reg_node);
+ problem_found = true;
+ }
+ registers[idx+i] = node;
}
-
- registers[reg->index] = node;
}
-static void value_def(ir_node *node)
+static void value_def(const ir_node *node)
{
- const arch_register_t *reg;
- ir_node *reg_node;
+ const arch_register_t *reg = arch_get_irn_register(node);
+ const arch_register_req_t *req;
+ unsigned idx;
+ unsigned i;
- if (arch_get_irn_reg_class_out(node) != regclass)
- return;
-
- reg = arch_get_irn_register(node);
if (reg == NULL || reg->type & arch_register_type_virtual)
return;
- reg_node = registers[reg->index];
+ req = arch_get_irn_register_req(node);
+ assert(req->width > 0);
+ idx = reg->global_index;
+ for (i = 0; i < req->width; ++i) {
+ const ir_node *reg_node = registers[idx+i];
+
+ /* a little cheat, since its so hard to remove all outedges to dead code
+ * in the backend. This particular case should never be a problem. */
+ if (reg_node == NULL && get_irn_n_edges(node) == 0)
+ return;
- if (reg_node != node) {
- ir_fprintf(stderr, "Verify warning: Node %+F not registered as value for Register %s (but %+F) in block %+F(%s)\n",
- node, reg->name, reg_node, get_nodes_block(node), get_irg_dump_name(irg));
- problem_found = 1;
+ if (reg_node != node) {
+ const arch_register_t *realreg = &arch_env->registers[idx+i];
+ ir_fprintf(stderr, "Verify warning: Node %+F not registered as value for Register %s (but %+F) in block %+F(%s)\n",
+ node, realreg->name, reg_node, get_nodes_block(node),
+ get_irg_name(irg));
+ problem_found = true;
+ }
+ registers[idx+i] = NULL;
}
- registers[reg->index] = NULL;
}
static void verify_block_register_allocation(ir_node *block, void *data)
{
- int i, nregclasses;
- (void) data;
-
- nregclasses = arch_env->n_register_classes;
- for (i = 0; i < nregclasses; ++i) {
- ir_node *node;
- int idx, i2, n_regs;
+ unsigned i;
+ ir_node *node;
+ unsigned n_regs;
+ int idx;
- regclass = &arch_env->register_classes[i];
+ (void) data;
- assert(lv->nodes && "live sets must be computed");
+ assert(lv->sets_valid && "live sets must be computed");
- n_regs = arch_register_class_n_regs(regclass);
- registers = ALLOCANZ(ir_node*, n_regs);
+ n_regs = arch_env->n_registers;
+ registers = ALLOCANZ(const ir_node*, n_regs);
- be_lv_foreach(lv, block, be_lv_state_end, idx) {
- ir_node *node = be_lv_get_irn(lv, block, idx);
- value_used(block, node);
- }
+ be_lv_foreach(lv, block, be_lv_state_end, idx) {
+ ir_node *lv_node = be_lv_get_irn(lv, block, idx);
+ value_used(block, lv_node);
+ }
- sched_foreach_reverse(block, node) {
- int arity;
+ sched_foreach_reverse(block, node) {
+ int arity;
- if (get_irn_mode(node) == mode_T) {
- const ir_edge_t *edge;
- foreach_out_edge(node, edge) {
- ir_node *def = get_edge_src_irn(edge);
- value_def(def);
- check_output_constraints(def);
- }
- } else {
- value_def(node);
- check_output_constraints(node);
+ if (get_irn_mode(node) == mode_T) {
+ const ir_edge_t *edge;
+ foreach_out_edge(node, edge) {
+ ir_node *def = get_edge_src_irn(edge);
+ value_def(def);
+ check_output_constraints(def);
}
+ } else {
+ value_def(node);
+ check_output_constraints(node);
+ }
- check_input_constraints(node);
+ check_input_constraints(node);
- /* process uses. (Phi inputs are no real uses) */
- if (!is_Phi(node)) {
- arity = get_irn_arity(node);
- for (i2 = 0; i2 < arity; ++i2) {
- ir_node *use = get_irn_n(node, i2);
- value_used(block, use);
- }
+ /* process uses. (Phi inputs are no real uses) */
+ if (!is_Phi(node)) {
+ int in;
+ arity = get_irn_arity(node);
+ for (in = 0; in < arity; ++in) {
+ ir_node *use = get_irn_n(node, in);
+ value_used(block, use);
}
}
+ }
- be_lv_foreach(lv, block, be_lv_state_in, idx) {
- ir_node *node = be_lv_get_irn(lv, block, idx);
- value_def(node);
- }
+ be_lv_foreach(lv, block, be_lv_state_in, idx) {
+ ir_node *lv_node = be_lv_get_irn(lv, block, idx);
+ value_def(lv_node);
+ }
- /* set must be empty now */
- for (i2 = 0; i2 < n_regs; ++i2) {
- if (registers[i2] == NULL)
- continue;
+ /* set must be empty now */
+ for (i = 0; i < n_regs; ++i) {
+ if (registers[i] == NULL)
+ continue;
- ir_fprintf(stderr, "Verify warning: Node %+F not live-in and no def found in block %+F(%s)\n",
- registers[i2], block, get_irg_dump_name(irg));
- problem_found = 1;
- }
+ ir_fprintf(stderr, "Verify warning: Node %+F not live-in and no def found in block %+F(%s)\n",
+ registers[i], block, get_irg_name(irg));
+ problem_found = true;
}
}
-int be_verify_register_allocation(ir_graph *new_irg)
+bool be_verify_register_allocation(ir_graph *new_irg)
{
irg = new_irg;
arch_env = be_get_irg_arch_env(irg);
- lv = be_liveness(irg);
- problem_found = 0;
+ lv = be_liveness_new(irg);
+ problem_found = false;
- be_liveness_assure_sets(lv);
+ be_liveness_compute_sets(lv);
irg_block_walk_graph(irg, verify_block_register_allocation, NULL, NULL);
-
be_liveness_free(lv);
return !problem_found;
}
+
+/*--------------------------------------------------------------------------- */
+
+/**
+ * Walker: checks that every predecessors of a node dominates the node.
+ */
+static void dom_check(ir_node *irn, void *data)
+{
+ bool *problem_found = (bool*)data;
+
+ if (!is_Block(irn) && irn != get_irg_end(get_irn_irg(irn))) {
+ int i, n;
+ ir_node *bl = get_nodes_block(irn);
+
+ for (i = 0, n = get_irn_arity(irn); i < n; ++i) {
+ ir_node *op = get_irn_n(irn, i);
+ ir_node *def_bl = get_nodes_block(op);
+ ir_node *use_bl = bl;
+
+ if (is_Phi(irn))
+ use_bl = get_Block_cfgpred_block(bl, i);
+
+ if (get_irn_opcode(use_bl) != iro_Bad
+ && get_irn_opcode(def_bl) != iro_Bad
+ && !block_dominates(def_bl, use_bl)) {
+ ir_fprintf(stderr, "Verify warning: %+F in %+F must dominate %+F for user %+F (%s)\n", op, def_bl, use_bl, irn, get_irg_name(get_irn_irg(op)));
+ *problem_found = true;
+ }
+ }
+ }
+}
+
+/* Check, if the SSA dominance property is fulfilled. */
+bool be_check_dominance(ir_graph *irg)
+{
+ bool problem_found = false;
+
+ assure_doms(irg);
+ irg_walk_graph(irg, dom_check, NULL, &problem_found);
+
+ return !problem_found;
+}
+
+/*--------------------------------------------------------------------------- */
+
+typedef struct lv_walker_t {
+ be_lv_t *lv;
+ void *data;
+} lv_walker_t;
+
+static const char *lv_flags_to_str(unsigned flags)
+{
+ static const char *states[] = {
+ "---",
+ "i--",
+ "-e-",
+ "ie-",
+ "--o",
+ "i-o",
+ "-eo",
+ "ieo"
+ };
+
+ return states[flags & 7];
+}
+
+static void lv_check_walker(ir_node *bl, void *data)
+{
+ lv_walker_t *w = (lv_walker_t*)data;
+ be_lv_t *lv = w->lv;
+ be_lv_t *fresh = (be_lv_t*)w->data;
+
+ be_lv_info_t *curr = (be_lv_info_t*)ir_nodehashmap_get(&fresh->map, bl);
+ be_lv_info_t *fr = (be_lv_info_t*)ir_nodehashmap_get(&fresh->map, bl);
+
+ if (!fr && curr && curr[0].head.n_members > 0) {
+ unsigned i;
+
+ ir_fprintf(stderr, "%+F liveness should be empty but current liveness contains:\n", bl);
+ for (i = 0; i < curr[0].head.n_members; ++i) {
+ ir_fprintf(stderr, "\t%+F\n", get_idx_irn(lv->irg, curr[1 + i].node.idx));
+ }
+ }
+
+ else if (curr) {
+ unsigned n_curr = curr[0].head.n_members;
+ unsigned n_fresh = fr[0].head.n_members;
+
+ unsigned i;
+
+ if (n_curr != n_fresh) {
+ ir_fprintf(stderr, "%+F: liveness set sizes differ. curr %d, correct %d\n", bl, n_curr, n_fresh);
+
+ ir_fprintf(stderr, "current:\n");
+ for (i = 0; i < n_curr; ++i) {
+ be_lv_info_node_t *n = &curr[1 + i].node;
+ ir_fprintf(stderr, "%+F %u %+F %s\n", bl, i, get_idx_irn(lv->irg, n->idx), lv_flags_to_str(n->flags));
+ }
+
+ ir_fprintf(stderr, "correct:\n");
+ for (i = 0; i < n_fresh; ++i) {
+ be_lv_info_node_t *n = &fr[1 + i].node;
+ ir_fprintf(stderr, "%+F %u %+F %s\n", bl, i, get_idx_irn(lv->irg, n->idx), lv_flags_to_str(n->flags));
+ }
+ }
+ }
+}
+
+void be_liveness_check(be_lv_t *lv)
+{
+ lv_walker_t w;
+ be_lv_t *fresh = be_liveness_new(lv->irg);
+
+ w.lv = lv;
+ w.data = fresh;
+ irg_block_walk_graph(lv->irg, lv_check_walker, NULL, &w);
+ be_liveness_free(fresh);
+}
projects / libfirm / blobdiff