#include "bespill.h"
#include "bespillutil.h"
#include "belive_t.h"
-#include "benode_t.h"
+#include "benode.h"
#include "bechordal_t.h"
#include "bestatevent.h"
#include "bessaconstr.h"
void be_add_spill(spill_env_t *env, ir_node *to_spill, ir_node *after)
{
- spill_info_t *spill_info = get_spillinfo(env, to_spill);
- spill_t *spill;
- spill_t *s;
- spill_t *last;
+ spill_info_t *spill_info = get_spillinfo(env, to_spill);
+ const ir_node *insn = skip_Proj_const(to_spill);
+ spill_t *spill;
+ spill_t *s;
+ spill_t *last;
- assert(!arch_irn_is(to_spill, dont_spill));
+ assert(!arch_irn_is(insn, dont_spill));
DB((dbg, LEVEL_1, "Add spill of %+F after %+F\n", to_spill, after));
/* Just for safety make sure that we do not insert the spill in front of a phi */
}
}
- spill = obstack_alloc(&env->obst, sizeof(spill[0]));
+ spill = OALLOC(&env->obst, spill_t);
spill->after = after;
spill->next = spill_info->spills;
spill->spill = NULL;
spill_info = get_spillinfo(env, to_spill);
/* add the remat information */
- reloader = obstack_alloc(&env->obst, sizeof(reloader[0]));
+ reloader = OALLOC(&env->obst, reloader_t);
reloader->next = spill_info->reloaders;
reloader->reloader = before;
reloader->rematted_node = rematted_node;
ir_node *can_spill_after, const arch_register_class_t *reload_cls,
int allow_remat)
{
- spill_info_t *info;
- reloader_t *rel;
+ spill_info_t *info;
+ reloader_t *rel;
+ const ir_node *insn = skip_Proj_const(to_spill);
- assert(!arch_irn_is(to_spill, dont_spill));
+ assert(!arch_irn_is(insn, dont_spill));
info = get_spillinfo(env, to_spill);
assert(!is_Proj(before) && !be_is_Keep(before));
/* put reload into list */
- rel = obstack_alloc(&env->obst, sizeof(rel[0]));
+ rel = OALLOC(&env->obst, reloader_t);
rel->next = info->reloaders;
rel->reloader = before;
rel->rematted_node = NULL;
{
while(true) {
ir_node *next = sched_next(node);
- if(!is_Phi(next) && !be_is_Keep(next))
+ if(!is_Phi(next) && !be_is_Keep(next) && !be_is_CopyKeep(next))
break;
node = next;
}
*/
static void spill_irn(spill_env_t *env, spill_info_t *spillinfo)
{
- ir_node *to_spill = spillinfo->to_spill;
+ ir_node *to_spill = spillinfo->to_spill;
+ const ir_node *insn = skip_Proj_const(to_spill);
spill_t *spill;
/* determine_spill_costs must have been run before */
/* some backends have virtual noreg/unknown nodes that are not scheduled
* and simply always available. */
- if(!sched_is_scheduled(to_spill)) {
+ if(!sched_is_scheduled(insn)) {
/* override spillinfos or create a new one */
spillinfo->spills->spill = new_NoMem();
DB((dbg, LEVEL_1, "don't spill %+F use NoMem\n", to_spill));
}
/* override or replace spills list... */
- spill = obstack_alloc(&env->obst, sizeof(spill[0]));
+ spill = OALLOC(&env->obst, spill_t);
spill->after = skip_keeps_phis(phi);
spill->spill = new_r_Phi(block, arity, ins, mode_M);
spill->next = NULL;
if(is_Unknown(arg) || arg == new_NoMem())
return 1;
- if(be_is_Spill(arg))
+ if(be_is_Spill(skip_Proj_const(arg)))
return 1;
if(arg == get_irg_frame(env->irg))
return 1;
-#if 0
- /* hack for now (happens when command should be inserted at end of block) */
- if(is_Block(reloader))
- return 0;
-#else
(void)reloader;
-#endif
/*
* Ignore registers are always available
return 0;
}
-/**
- * Checks whether the node can principally be rematerialized
- */
-static int is_remat_node(const ir_node *node)
-{
- assert(!be_is_Spill(node));
-
- if (arch_irn_is(node, rematerializable))
- return 1;
-
- return 0;
-}
-
/**
* Check if a node is rematerializable. This tests for the following conditions:
*
int i, arity;
int argremats;
int costs = 0;
+ const ir_node *insn = skip_Proj_const(spilled);
- if (!is_remat_node(spilled))
+ assert(!be_is_Spill(insn));
+ if (!arch_irn_is(insn, rematerializable))
return REMAT_COST_INFINITE;
- if(be_is_Reload(spilled)) {
+ if(be_is_Reload(insn)) {
costs += 2;
} else {
- costs += arch_get_op_estimated_cost(spilled);
+ costs += arch_get_op_estimated_cost(insn);
}
if(parentcosts + costs >= env->reload_cost + env->spill_cost) {
return REMAT_COST_INFINITE;
* (would be better to test wether the flags are actually live at point
* reloader...)
*/
- if (arch_irn_is(spilled, modify_flags)) {
+ if (arch_irn_is(insn, modify_flags)) {
return REMAT_COST_INFINITE;
}
argremats = 0;
- for(i = 0, arity = get_irn_arity(spilled); i < arity; ++i) {
- ir_node *arg = get_irn_n(spilled, i);
+ for(i = 0, arity = get_irn_arity(insn); i < arity; ++i) {
+ ir_node *arg = get_irn_n(insn, i);
if(is_value_available(env, arg, reloader))
continue;
/* we have to rematerialize the argument as well */
- if(argremats >= 1) {
+ ++argremats;
+ if(argremats > 1) {
/* we only support rematerializing 1 argument at the moment,
- * so that we don't have to care about register pressure
- */
+ * as multiple arguments could increase register pressure */
return REMAT_COST_INFINITE;
}
- argremats++;
costs += check_remat_conditions_costs(env, arg, reloader,
parentcosts + costs);
*/
static void determine_spill_costs(spill_env_t *env, spill_info_t *spillinfo)
{
- ir_node *to_spill = spillinfo->to_spill;
- ir_node *spill_block;
- spill_t *spill;
- double spill_execfreq;
+ ir_node *to_spill = spillinfo->to_spill;
+ const ir_node *insn = skip_Proj_const(to_spill);
+ ir_node *spill_block;
+ spill_t *spill;
+ double spill_execfreq;
/* already calculated? */
if(spillinfo->spill_costs >= 0)
return;
- assert(!arch_irn_is(to_spill, dont_spill));
- assert(!be_is_Reload(to_spill));
+ assert(!arch_irn_is(insn, dont_spill));
+ assert(!be_is_Reload(insn));
/* some backends have virtual noreg/unknown nodes that are not scheduled
* and simply always available.
* TODO: this is kinda hairy, the NoMem is correct for an Unknown as Phi
* predecessor (of a PhiM) but this test might match other things too...
*/
- if(!sched_is_scheduled(to_spill)) {
+ if(!sched_is_scheduled(insn)) {
/* override spillinfos or create a new one */
- spill_t *spill = obstack_alloc(&env->obst, sizeof(spill[0]));
+ spill_t *spill = OALLOC(&env->obst, spill_t);
spill->after = NULL;
spill->next = NULL;
spill->spill = new_NoMem();
return;
}
- spill_block = get_nodes_block(to_spill);
+ spill_block = get_nodes_block(insn);
spill_execfreq = get_block_execfreq(env->exec_freq, spill_block);
if (is_Phi(to_spill) && ir_nodeset_contains(&env->mem_phis, to_spill)) {
}
/* override spillinfos or create a new one */
- spill = obstack_alloc(&env->obst, sizeof(spill[0]));
+ spill = OALLOC(&env->obst, spill_t);
spill->after = skip_keeps_phis(to_spill);
spill->next = NULL;
spill->spill = NULL;
ir_nodeset_iterator_t iter;
ir_node *node;
- BE_TIMER_PUSH(t_ra_spill_apply);
+ be_timer_push(T_RA_SPILL_APPLY);
/* create all phi-ms first, this is needed so, that phis, hanging on
spilled phis work correctly */
be_remove_dead_nodes_from_schedule(env->birg);
- BE_TIMER_POP(t_ra_spill_apply);
+ be_timer_pop(T_RA_SPILL_APPLY);
}
void be_init_spill(void)
projects / libfirm / blobdiff