#include <string.h>
#include <stdlib.h>
+#include <stdbool.h>
#include <assert.h>
#include "error.h"
#include "array_t.h"
#include "irpass_t.h"
+typedef struct lower_env_t lower_env_t;
+
+/**
+ * The type of a lower function.
+ *
+ * @param node the node to be lowered
+ * @param env the lower environment
+ */
+typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
+
/** A map from (op, imode, omode) to Intrinsic functions entities. */
static set *intrinsic_fkt;
/**
* The lower environment.
*/
-typedef struct lower_env_t {
+struct lower_env_t {
node_entry_t **entries; /**< entries per node */
ir_graph *irg;
struct obstack obst; /**< an obstack holding the temporary data */
tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
pdeq *waitq; /**< a wait queue of all nodes that must be handled later */
+ ir_node **lowered_phis; /**< list of lowered phis */
pmap *proj_2_block; /**< a map from ProjX to its destination blocks */
ir_mode *high_signed; /**< doubleword signed type */
ir_mode *high_unsigned; /**< doubleword unsigned type */
unsigned flags; /**< some flags */
unsigned n_entries; /**< number of entries */
ir_type *value_param_tp; /**< the old value param type */
-} lower_env_t;
+};
/**
* Create a method type for a Conv emulation from imode to omode.
}
/**
- * Walker, prepare the node links.
+ * Walker, prepare the node links and determine which nodes need to be lowered
+ * at all.
*/
-static void prepare_links(ir_node *node, void *env)
+static void prepare_links(lower_env_t *env, ir_node *node)
{
- lower_env_t *lenv = env;
ir_mode *mode = get_irn_op_mode(node);
node_entry_t *link;
int i;
- if (mode == lenv->high_signed || mode == lenv->high_unsigned) {
+ if (mode == env->high_signed || mode == env->high_unsigned) {
unsigned idx = get_irn_idx(node);
/* ok, found a node that will be lowered */
- link = OALLOCZ(&lenv->obst, node_entry_t);
+ link = OALLOCZ(&env->obst, node_entry_t);
- idx = get_irn_idx(node);
- if (idx >= lenv->n_entries) {
+ if (idx >= env->n_entries) {
/* enlarge: this happens only for Rotl nodes which is RARELY */
- unsigned old = lenv->n_entries;
+ unsigned old = env->n_entries;
unsigned n_idx = idx + (idx >> 3);
- ARR_RESIZE(node_entry_t *, lenv->entries, n_idx);
- memset(&lenv->entries[old], 0, (n_idx - old) * sizeof(lenv->entries[0]));
- lenv->n_entries = n_idx;
+ ARR_RESIZE(node_entry_t *, env->entries, n_idx);
+ memset(&env->entries[old], 0, (n_idx - old) * sizeof(env->entries[0]));
+ env->n_entries = n_idx;
}
- lenv->entries[idx] = link;
- lenv->flags |= MUST_BE_LOWERED;
+ env->entries[idx] = link;
+ env->flags |= MUST_BE_LOWERED;
} else if (is_Conv(node)) {
/* Conv nodes have two modes */
ir_node *pred = get_Conv_op(node);
mode = get_irn_mode(pred);
- if (mode == lenv->high_signed ||
- mode == lenv->high_unsigned) {
+ if (mode == env->high_signed || mode == env->high_unsigned) {
/* must lower this node either but don't need a link */
- lenv->flags |= MUST_BE_LOWERED;
+ env->flags |= MUST_BE_LOWERED;
}
return;
}
ir_node *pred = get_Block_cfgpred(node, i);
if (is_Proj(pred))
- pmap_insert(lenv->proj_2_block, pred, node);
+ pmap_insert(env->proj_2_block, pred, node);
}
}
}
+static node_entry_t *get_node_entry(lower_env_t *env, ir_node *node)
+{
+ unsigned idx = get_irn_idx(node);
+ assert(idx < env->n_entries);
+ return env->entries[idx];
+}
+
+static void set_lowered(lower_env_t *env, ir_node *old,
+ ir_node *new_low, ir_node *new_high)
+{
+ node_entry_t *entry = get_node_entry(env, old);
+ entry->low_word = new_low;
+ entry->high_word = new_high;
+}
+
/**
* Translate a Constant: create two.
*/
ir_graph *irg = get_irn_irg(node);
dbg_info *dbg = get_irn_dbg_info(node);
ir_mode *low_mode = env->low_unsigned;
- unsigned idx;
- tarval *tv, *tv_l, *tv_h;
- ir_node *low, *high;
-
- tv = get_Const_tarval(node);
-
- tv_l = tarval_convert_to(tv, low_mode);
- low = new_rd_Const(dbg, irg, tv_l);
-
- tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
- high = new_rd_Const(dbg, irg, tv_h);
-
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = low;
- env->entries[idx]->high_word = high;
+ tarval *tv = get_Const_tarval(node);
+ tarval *tv_l = tarval_convert_to(tv, low_mode);
+ ir_node *res_low = new_rd_Const(dbg, irg, tv_l);
+ tarval *tv_shrs = tarval_shrs(tv, env->tv_mode_bits);
+ tarval *tv_h = tarval_convert_to(tv_shrs, mode);
+ ir_node *res_high = new_rd_Const(dbg, irg, tv_h);
+
+ set_lowered(env, node, res_low, res_high);
}
/**
ir_node *low, *high, *proj;
dbg_info *dbg;
ir_node *block = get_nodes_block(node);
- unsigned idx;
ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
? cons_volatile : 0;
proj = new_r_Proj(low, mode_M, pn_Load_M);
high = new_rd_Load(dbg, block, proj, high, mode, volatility);
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = low;
- env->entries[idx]->high_word = high;
+ set_lowered(env, node, low, high);
for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
- idx = get_irn_idx(proj);
-
switch (get_Proj_proj(proj)) {
case pn_Load_M: /* Memory result. */
/* put it to the second one */
/* put it to the first one */
set_Proj_pred(proj, low);
break;
- case pn_Load_res: /* Result of load operation. */
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(low, low_mode, pn_Load_res);
- env->entries[idx]->high_word = new_r_Proj(high, mode, pn_Load_res);
+ case pn_Load_res: { /* Result of load operation. */
+ ir_node *res_low = new_r_Proj(low, low_mode, pn_Load_res);
+ ir_node *res_high = new_r_Proj(high, mode, pn_Load_res);
+ set_lowered(env, proj, res_low, res_high);
break;
+ }
default:
assert(0 && "unexpected Proj number");
}
- /* mark this proj: we have handled it already, otherwise we might fall into
- * out new nodes. */
+ /* mark this proj: we have handled it already, otherwise we might fall
+ * into out new nodes. */
mark_irn_visited(proj);
}
}
{
ir_graph *irg;
ir_node *block, *adr, *mem;
- ir_node *low, *high, *irn, *proj;
+ ir_node *low, *high, *proj;
dbg_info *dbg;
- unsigned idx;
- node_entry_t *entry;
- ir_cons_flags volatility = get_Store_volatility(node) == volatility_is_volatile
+ ir_node *value = get_Store_value(node);
+ const node_entry_t *entry = get_node_entry(env, value);
+ ir_cons_flags volatility = get_Store_volatility(node) == volatility_is_volatile
? cons_volatile : 0;
(void) mode;
- irn = get_Store_value(node);
- entry = env->entries[get_irn_idx(irn)];
assert(entry);
if (! entry->low_word) {
proj = new_r_Proj(low, mode_M, pn_Store_M);
high = new_rd_Store(dbg, block, proj, high, entry->high_word, volatility);
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = low;
- env->entries[idx]->high_word = high;
+ set_lowered(env, node, low, high);
for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
- idx = get_irn_idx(proj);
-
switch (get_Proj_proj(proj)) {
case pn_Store_M: /* Memory result. */
/* put it to the second one */
*/
static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *irn, *call, *proj;
- ir_node *in[4];
- ir_mode *opmode;
- dbg_info *dbg;
- ir_type *mtp;
- unsigned idx;
- node_entry_t *entry;
-
- irn = get_Div_left(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[0] = entry->low_word;
- in[1] = entry->high_word;
-
- irn = get_Div_right(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
+ ir_node *left = get_Div_left(node);
+ ir_node *right = get_Div_right(node);
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ const node_entry_t *right_entry = get_node_entry(env, right);
+ ir_node *block = get_nodes_block(node);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_type *mtp
+ = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
+ ir_mode *opmode = get_irn_op_mode(node);
+ ir_node *addr
+ = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
+ ir_node *in[4] = {
+ left_entry->low_word, left_entry->high_word,
+ right_entry->low_word, right_entry->high_word };
+ ir_node *call
+ = new_rd_Call(dbgi, block, get_Div_mem(node), addr, 4, in, mtp);
+ ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
+ ir_node *proj;
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[2] = entry->low_word;
- in[3] = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
-
- mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
- opmode = get_irn_op_mode(node);
- irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
- call = new_rd_Call(dbg, block, get_Div_mem(node), irn, 4, in, mtp);
set_irn_pinned(call, get_irn_pinned(node));
- irn = new_r_Proj(call, mode_T, pn_Call_T_result);
for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
switch (get_Proj_proj(proj)) {
set_Proj_pred(proj, call);
set_Proj_proj(proj, pn_Call_X_except);
break;
- case pn_Div_res: /* Result of computation. */
- idx = get_irn_idx(proj);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
+ case pn_Div_res: {
+ /* Result of computation. */
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ set_lowered(env, proj, res_low, res_high);
break;
+ }
default:
assert(0 && "unexpected Proj number");
}
*/
static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *proj, *irn, *call;
- ir_node *in[4];
- ir_mode *opmode;
- dbg_info *dbg;
- ir_type *mtp;
- unsigned idx;
- node_entry_t *entry;
-
- irn = get_Mod_left(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[0] = entry->low_word;
- in[1] = entry->high_word;
-
- irn = get_Mod_right(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[2] = entry->low_word;
- in[3] = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
-
- mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
- opmode = get_irn_op_mode(node);
- irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
- call = new_rd_Call(dbg, block, get_Mod_mem(node), irn, 4, in, mtp);
+ ir_node *left = get_Mod_left(node);
+ ir_node *right = get_Mod_right(node);
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ const node_entry_t *right_entry = get_node_entry(env, right);
+ ir_node *in[4] = {
+ left_entry->low_word, left_entry->high_word,
+ right_entry->low_word, right_entry->high_word
+ };
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_type *mtp
+ = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
+ ir_mode *opmode = get_irn_op_mode(node);
+ ir_node *addr
+ = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
+ ir_node *call
+ = new_rd_Call(dbgi, block, get_Mod_mem(node), addr, 4, in, mtp);
+ ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
+ ir_node *proj;
set_irn_pinned(call, get_irn_pinned(node));
- irn = new_r_Proj(call, mode_T, pn_Call_T_result);
for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
switch (get_Proj_proj(proj)) {
set_Proj_pred(proj, call);
set_Proj_proj(proj, pn_Call_X_except);
break;
- case pn_Mod_res: /* Result of computation. */
- idx = get_irn_idx(proj);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
+ case pn_Mod_res: {
+ /* Result of computation. */
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ set_lowered(env, proj, res_low, res_high);
break;
+ }
default:
assert(0 && "unexpected Proj number");
}
- /* mark this proj: we have handled it already, otherwise we might fall into
- * out new nodes. */
+ /* mark this proj: we have handled it already, otherwise we might fall
+ * into out new nodes. */
mark_irn_visited(proj);
}
}
-/**
- * Translate a DivMod.
- *
- * Create two intrinsic Calls.
- */
static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *proj, *irn, *mem, *callDiv, *callMod;
- ir_node *resDiv = NULL;
- ir_node *resMod = NULL;
- ir_node *in[4];
- ir_mode *opmode;
- dbg_info *dbg;
- ir_type *mtp;
- unsigned idx;
- node_entry_t *entry;
- unsigned flags = 0;
-
- /* check if both results are needed */
- for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
- switch (get_Proj_proj(proj)) {
- case pn_DivMod_res_div: flags |= 1; break;
- case pn_DivMod_res_mod: flags |= 2; break;
- default: break;
- }
- }
-
- irn = get_DivMod_left(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[0] = entry->low_word;
- in[1] = entry->high_word;
-
- irn = get_DivMod_right(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[2] = entry->low_word;
- in[3] = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
-
- mem = get_DivMod_mem(node);
-
- callDiv = callMod = NULL;
- mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
- if (flags & 1) {
- opmode = get_irn_op_mode(node);
- irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, env);
- callDiv = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
- set_irn_pinned(callDiv, get_irn_pinned(node));
- resDiv = new_r_Proj(callDiv, mode_T, pn_Call_T_result);
- }
- if (flags & 2) {
- if (flags & 1)
- mem = new_r_Proj(callDiv, mode_M, pn_Call_M);
- opmode = get_irn_op_mode(node);
- irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, env);
- callMod = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
- set_irn_pinned(callMod, get_irn_pinned(node));
- resMod = new_r_Proj(callMod, mode_T, pn_Call_T_result);
- }
-
- for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
- switch (get_Proj_proj(proj)) {
- case pn_DivMod_M: /* Memory result. */
- /* reroute to the first call */
- set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
- set_Proj_proj(proj, pn_Call_M);
- break;
- case pn_DivMod_X_except: /* Execution result if exception occurred. */
- /* reroute to the first call */
- set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
- set_Proj_proj(proj, pn_Call_X_except);
- break;
- case pn_DivMod_res_div: /* Result of Div. */
- idx = get_irn_idx(proj);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(resDiv, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(resDiv, mode, 1);
- break;
- case pn_DivMod_res_mod: /* Result of Mod. */
- idx = get_irn_idx(proj);
- env->entries[idx]->low_word = new_r_Proj(resMod, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(resMod, mode, 1);
- break;
- default:
- assert(0 && "unexpected Proj number");
- }
- /* mark this proj: we have handled it already, otherwise we might fall into
- * out new nodes. */
- mark_irn_visited(proj);
- }
+ (void) node;
+ (void) mode;
+ (void) env;
+ panic("DivMod is deprecated, no doubleword lowering");
}
/**
- * Translate a Binop.
+ * Translate a binop.
*
* Create an intrinsic Call.
*/
-static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_binop(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *irn;
- ir_node *in[4];
- dbg_info *dbg;
- ir_type *mtp;
- unsigned idx;
- ir_graph *irg;
- node_entry_t *entry;
-
- irn = get_binop_left(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[0] = entry->low_word;
- in[1] = entry->high_word;
-
- irn = get_binop_right(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[2] = entry->low_word;
- in[3] = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
- irg = get_irn_irg(block);
-
- mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
- irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
- irn = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 4, in, mtp);
- set_irn_pinned(irn, get_irn_pinned(node));
- irn = new_r_Proj(irn, mode_T, pn_Call_T_result);
-
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
+ ir_node *left = get_binop_left(node);
+ ir_node *right = get_binop_right(node);
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ const node_entry_t *right_entry = get_node_entry(env, right);
+ ir_node *in[4] = {
+ left_entry->low_word, left_entry->high_word,
+ right_entry->low_word, right_entry->high_word
+ };
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_graph *irg = get_irn_irg(block);
+ ir_type *mtp
+ = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
+ ir_node *addr
+ = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
+ ir_node *call
+ = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 4, in, mtp);
+ ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ set_irn_pinned(call, get_irn_pinned(node));
+ set_lowered(env, node, res_low, res_high);
}
/**
*/
static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *irn;
- ir_node *in[3];
- dbg_info *dbg;
- ir_type *mtp;
- unsigned idx;
- ir_graph *irg;
- node_entry_t *entry;
-
- irn = get_binop_left(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[0] = entry->low_word;
- in[1] = entry->high_word;
-
- /* The shift count is always mode_Iu in firm, so there is no need for lowering */
- in[2] = get_binop_right(node);
- assert(get_irn_mode(in[2]) != env->high_signed
- && get_irn_mode(in[2]) != env->high_unsigned);
+ ir_node *left = get_binop_left(node);
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ ir_node *right = get_binop_right(node);
+ ir_node *in[3] = {
+ left_entry->low_word, left_entry->high_word, right
+ };
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_graph *irg = get_irn_irg(block);
+ ir_type *mtp
+ = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
+ ir_node *addr
+ = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
+ ir_node *call
+ = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 3, in, mtp);
+ ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
- irg = get_irn_irg(block);
-
- mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
- irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
- irn = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 3, in, mtp);
- set_irn_pinned(irn, get_irn_pinned(node));
- irn = new_r_Proj(irn, mode_T, pn_Call_T_result);
+ set_irn_pinned(call, get_irn_pinned(node));
+ set_lowered(env, node, res_low, res_high);
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
+ /* The shift count is always mode_Iu, no need for lowering */
+ assert(get_irn_mode(right) != env->high_signed
+ && get_irn_mode(right) != env->high_unsigned);
}
/**
ir_node *block = get_nodes_block(node);
ir_node *left = get_Shr_left(node);
ir_mode *low_unsigned = env->low_unsigned;
- ir_node *c;
long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
- unsigned idx = get_irn_idx(left);
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ ir_node *res_low;
+ ir_node *res_high;
- left = env->entries[idx]->high_word;
- if (left == NULL) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
+ left = left_entry->high_word;
- idx = get_irn_idx(node);
/* convert high word into low_unsigned mode if necessary */
if (get_irn_mode(left) != low_unsigned)
left = new_r_Conv(block, left, low_unsigned);
if (shf_cnt > 0) {
- c = new_r_Const_long(irg, low_unsigned, shf_cnt);
- env->entries[idx]->low_word = new_r_Shr(block, left, c,
- low_unsigned);
+ ir_node *c = new_r_Const_long(irg, low_unsigned, shf_cnt);
+ res_low = new_r_Shr(block, left, c, low_unsigned);
} else {
- env->entries[idx]->low_word = left;
+ res_low = left;
}
- env->entries[idx]->high_word = new_r_Const(irg, get_mode_null(mode));
+ res_high = new_r_Const(irg, get_mode_null(mode));
+ set_lowered(env, node, res_low, res_high);
return;
}
ir_node *left = get_Shl_left(node);
ir_node *c;
long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
- unsigned idx = get_irn_idx(left);
-
- left = env->entries[idx]->low_word;
- if (left == NULL) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ ir_node *res_low;
+ ir_node *res_high;
+ left = left_entry->low_word;
left = new_r_Conv(block, left, mode);
- idx = get_irn_idx(node);
mode_l = env->low_unsigned;
if (shf_cnt > 0) {
- c = new_r_Const_long(irg, mode_l, shf_cnt);
- env->entries[idx]->high_word = new_r_Shl(block, left, c, mode);
+ c = new_r_Const_long(irg, mode_l, shf_cnt);
+ res_high = new_r_Shl(block, left, c, mode);
} else {
- env->entries[idx]->high_word = left;
+ res_high = left;
}
- env->entries[idx]->low_word = new_r_Const(irg, get_mode_null(mode_l));
+ res_low = new_r_Const(irg, get_mode_null(mode_l));
+ set_lowered(env, node, res_low, res_high);
return;
}
ir_node *left = get_Shrs_left(node);
ir_mode *low_unsigned = env->low_unsigned;
long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
- unsigned idx = get_irn_idx(left);
+ const node_entry_t *left_entry = get_node_entry(env, left);
ir_node *left_unsigned = left;
- ir_node *low;
+ ir_node *res_low;
+ ir_node *res_high;
ir_node *c;
- left = env->entries[idx]->high_word;
- if (left == NULL) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
+ left = left_entry->high_word;
- idx = get_irn_idx(node);
/* convert high word into low_unsigned mode if necessary */
if (get_irn_mode(left_unsigned) != low_unsigned)
left_unsigned = new_r_Conv(block, left, low_unsigned);
if (shf_cnt > 0) {
- c = new_r_Const_long(irg, low_unsigned, shf_cnt);
- low = new_r_Shrs(block, left_unsigned, c, low_unsigned);
+ c = new_r_Const_long(irg, low_unsigned, shf_cnt);
+ res_low = new_r_Shrs(block, left_unsigned, c, low_unsigned);
} else {
- low = left_unsigned;
+ res_low = left_unsigned;
}
- /* low word is expected to have low_unsigned */
- env->entries[idx]->low_word = new_r_Conv(block, low, low_unsigned);
-
- c = new_r_Const_long(irg, low_unsigned,
- get_mode_size_bits(mode) - 1);
- env->entries[idx]->high_word = new_r_Shrs(block, left, c, mode);
+ c = new_r_Const(irg, get_mode_all_one(low_unsigned));
+ res_high = new_r_Shrs(block, left, c, mode);
+ set_lowered(env, node, res_low, res_high);
return;
}
}
lower_env_t *lenv = env;
if (is_Rotl(node)) {
- ir_mode *mode = get_irn_op_mode(node);
- if (mode == lenv->high_signed ||
- mode == lenv->high_unsigned) {
- ir_node *right = get_Rotl_right(node);
- ir_node *left, *shl, *shr, *or, *block, *sub, *c;
- ir_mode *omode, *rmode;
- ir_graph *irg;
- dbg_info *dbg;
- optimization_state_t state;
-
- /* replace the Rotl(x,y) by an Or(Shl(x,y), Shr(x,64-y)) and lower those */
- irg = get_irn_irg(node);
- dbg = get_irn_dbg_info(node);
- omode = get_irn_mode(node);
- left = get_Rotl_left(node);
- block = get_nodes_block(node);
- shl = new_rd_Shl(dbg, block, left, right, omode);
- rmode = get_irn_mode(right);
- c = new_r_Const_long(irg, rmode, get_mode_size_bits(omode));
- sub = new_rd_Sub(dbg, block, c, right, rmode);
- shr = new_rd_Shr(dbg, block, left, sub, omode);
-
- /* optimization must be switched off here, or we will get the Rotl back */
- save_optimization_state(&state);
- set_opt_algebraic_simplification(0);
- or = new_rd_Or(dbg, block, shl, shr, omode);
- restore_optimization_state(&state);
-
- exchange(node, or);
-
- /* do lowering on the new nodes */
- prepare_links(shl, env);
- prepare_links(c, env);
- prepare_links(sub, env);
- prepare_links(shr, env);
- prepare_links(or, env);
- }
- } else {
- prepare_links(node, env);
+ ir_mode *mode = get_irn_op_mode(node);
+ ir_node *right;
+ ir_node *left, *shl, *shr, *or, *block, *sub, *c;
+ ir_mode *omode, *rmode;
+ ir_graph *irg;
+ dbg_info *dbg;
+ optimization_state_t state;
+
+ if (mode != lenv->high_signed && mode != lenv->high_unsigned) {
+ prepare_links(lenv, node);
+ return;
+ }
+
+ /* replace the Rotl(x,y) by an Or(Shl(x,y), Shr(x,64-y)) */
+ right = get_Rotl_right(node);
+ irg = get_irn_irg(node);
+ dbg = get_irn_dbg_info(node);
+ omode = get_irn_mode(node);
+ left = get_Rotl_left(node);
+ block = get_nodes_block(node);
+ shl = new_rd_Shl(dbg, block, left, right, omode);
+ rmode = get_irn_mode(right);
+ c = new_r_Const_long(irg, rmode, get_mode_size_bits(omode));
+ sub = new_rd_Sub(dbg, block, c, right, rmode);
+ shr = new_rd_Shr(dbg, block, left, sub, omode);
+
+ /* switch optimization off here, or we will get the Rotl back */
+ save_optimization_state(&state);
+ set_opt_algebraic_simplification(0);
+ or = new_rd_Or(dbg, block, shl, shr, omode);
+ restore_optimization_state(&state);
+
+ exchange(node, or);
+
+ /* do lowering on the new nodes */
+ prepare_links(lenv, shl);
+ prepare_links(lenv, c);
+ prepare_links(lenv, sub);
+ prepare_links(lenv, shr);
+ prepare_links(lenv, or);
+ return;
}
+
+ prepare_links(lenv, node);
}
/**
*/
static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *irn;
- ir_node *in[2];
- dbg_info *dbg;
- ir_type *mtp;
- ir_graph *irg;
- unsigned idx;
- node_entry_t *entry;
-
- irn = get_unop_op(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- in[0] = entry->low_word;
- in[1] = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
- irg = get_irn_irg(block);
-
- mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
- irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
- irn = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
- set_irn_pinned(irn, get_irn_pinned(node));
- irn = new_r_Proj(irn, mode_T, pn_Call_T_result);
-
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_r_Proj(irn, env->low_unsigned, 0);
- env->entries[idx]->high_word = new_r_Proj(irn, mode, 1);
+ ir_node *op = get_unop_op(node);
+ const node_entry_t *op_entry = get_node_entry(env, op);
+ ir_node *in[2] = { op_entry->low_word, op_entry->high_word };
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_graph *irg = get_irn_irg(block);
+ ir_type *mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
+ ir_op *irop = get_irn_op(node);
+ ir_node *addr = get_intrinsic_address(mtp, irop, mode, mode, env);
+ ir_node *nomem = get_irg_no_mem(irg);
+ ir_node *call = new_rd_Call(dbgi, block, nomem, addr, 2, in, mtp);
+ ir_node *resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ set_irn_pinned(call, get_irn_pinned(node));
+ set_lowered(env, node, res_low, res_high);
}
/**
- * Translate a logical Binop.
+ * Translate a logical binop.
*
- * Create two logical Binops.
+ * Create two logical binops.
*/
-static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
- ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
- ir_node *block, *irn;
- ir_node *lop_l, *lop_h, *rop_l, *rop_h;
- dbg_info *dbg;
- unsigned idx;
- ir_graph *irg;
- node_entry_t *entry;
-
- irn = get_binop_left(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- lop_l = entry->low_word;
- lop_h = entry->high_word;
-
- irn = get_binop_right(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- rop_l = entry->low_word;
- rop_h = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
+static void lower_binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
+ ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) )
+{
+ ir_node *left = get_binop_left(node);
+ ir_node *right = get_binop_right(node);
+ const node_entry_t *left_entry = get_node_entry(env, left);
+ const node_entry_t *right_entry = get_node_entry(env, right);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *res_low
+ = constr_rd(dbgi, block, left_entry->low_word, right_entry->low_word,
+ env->low_unsigned);
+ ir_node *res_high
+ = constr_rd(dbgi, block, left_entry->high_word, right_entry->high_word,
+ mode);
+ set_lowered(env, node, res_low, res_high);
+}
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- irg = get_irn_irg(node);
- env->entries[idx]->low_word = constr_rd(dbg, block, lop_l, rop_l, env->low_unsigned);
- env->entries[idx]->high_word = constr_rd(dbg, block, lop_h, rop_h, mode);
+static void lower_And(ir_node *node, ir_mode *mode, lower_env_t *env)
+{
+ lower_binop_logical(node, mode, env, new_rd_And);
}
-/** create a logical operation transformation */
-#define lower_logical(op) \
-static void lower_##op(ir_node *node, ir_mode *mode, lower_env_t *env) { \
- lower_Binop_logical(node, mode, env, new_rd_##op); \
+static void lower_Or(ir_node *node, ir_mode *mode, lower_env_t *env)
+{
+ lower_binop_logical(node, mode, env, new_rd_Or);
}
-lower_logical(And)
-lower_logical(Or)
-lower_logical(Eor)
+static void lower_Eor(ir_node *node, ir_mode *mode, lower_env_t *env)
+{
+ lower_binop_logical(node, mode, env, new_rd_Eor);
+}
/**
* Translate a Not.
*/
static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *irn;
- ir_node *op_l, *op_h;
- dbg_info *dbg;
- unsigned idx;
- node_entry_t *entry;
-
- irn = get_Not_op(node);
- entry = env->entries[get_irn_idx(irn)];
- assert(entry);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
-
- op_l = entry->low_word;
- op_h = entry->high_word;
-
- dbg = get_irn_dbg_info(node);
- block = get_nodes_block(node);
-
- idx = get_irn_idx(node);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_rd_Not(dbg, block, op_l, env->low_unsigned);
- env->entries[idx]->high_word = new_rd_Not(dbg, block, op_h, mode);
+ ir_node *op = get_Not_op(node);
+ const node_entry_t *op_entry = get_node_entry(env, op);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *res_low
+ = new_rd_Not(dbgi, block, op_entry->low_word, env->low_unsigned);
+ ir_node *res_high
+ = new_rd_Not(dbgi, block, op_entry->high_word, mode);
+ set_lowered(env, node, res_low, res_high);
}
/**
ir_node *cmp, *left, *right, *block;
ir_node *sel = get_Cond_selector(node);
ir_mode *m = get_irn_mode(sel);
- unsigned idx;
- (void) mode;
-
- if (m == mode_b) {
- node_entry_t *lentry, *rentry;
- ir_node *proj, *projT = NULL, *projF = NULL;
- ir_node *new_bl, *cmpH, *cmpL, *irn;
- ir_node *projHF, *projHT;
- ir_node *dst_blk;
- pn_Cmp pnc;
- ir_graph *irg;
- dbg_info *dbg;
+ ir_mode *cmp_mode;
+ const node_entry_t *lentry, *rentry;
+ ir_node *proj, *projT = NULL, *projF = NULL;
+ ir_node *new_bl, *cmpH, *cmpL, *irn;
+ ir_node *projHF, *projHT;
+ ir_node *dst_blk;
+ pn_Cmp pnc;
+ ir_graph *irg;
+ dbg_info *dbg;
- if (!is_Proj(sel))
- return;
+ (void) mode;
- cmp = get_Proj_pred(sel);
- if (!is_Cmp(cmp))
- return;
+ if (m != mode_b) {
+ if (m == env->high_signed || m == env->high_unsigned) {
+ /* bad we can't really handle Switch with 64bit offsets */
+ panic("Cond with 64bit jumptable not supported");
+ }
+ return;
+ }
- left = get_Cmp_left(cmp);
- idx = get_irn_idx(left);
- lentry = env->entries[idx];
+ if (!is_Proj(sel))
+ return;
- if (! lentry) {
- /* a normal Cmp */
- return;
- }
+ cmp = get_Proj_pred(sel);
+ if (!is_Cmp(cmp))
+ return;
- right = get_Cmp_right(cmp);
- idx = get_irn_idx(right);
- rentry = env->entries[idx];
- assert(rentry);
+ left = get_Cmp_left(cmp);
+ cmp_mode = get_irn_mode(left);
+ if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned)
+ return;
- if (! lentry->low_word || !rentry->low_word) {
- /* not yet ready */
- pdeq_putr(env->waitq, node);
- return;
- }
+ right = get_Cmp_right(cmp);
+ lentry = get_node_entry(env, left);
+ rentry = get_node_entry(env, right);
- /* all right, build the code */
- for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
- long proj_nr = get_Proj_proj(proj);
+ /* all right, build the code */
+ for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
+ long proj_nr = get_Proj_proj(proj);
- if (proj_nr == pn_Cond_true) {
- assert(projT == NULL && "more than one Proj(true)");
- projT = proj;
- } else {
- assert(proj_nr == pn_Cond_false);
- assert(projF == NULL && "more than one Proj(false)");
- projF = proj;
- }
- mark_irn_visited(proj);
+ if (proj_nr == pn_Cond_true) {
+ assert(projT == NULL && "more than one Proj(true)");
+ projT = proj;
+ } else {
+ assert(proj_nr == pn_Cond_false);
+ assert(projF == NULL && "more than one Proj(false)");
+ projF = proj;
}
- assert(projT && projF);
+ mark_irn_visited(proj);
+ }
+ assert(projT && projF);
- /* create a new high compare */
- block = get_nodes_block(node);
- irg = get_Block_irg(block);
- dbg = get_irn_dbg_info(cmp);
- pnc = get_Proj_proj(sel);
-
- if (is_Const(right) && is_Const_null(right)) {
- if (pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) {
- /* x ==/!= 0 ==> or(low,high) ==/!= 0 */
- ir_mode *mode = env->low_unsigned;
- ir_node *low = new_r_Conv(block, lentry->low_word, mode);
- ir_node *high = new_r_Conv(block, lentry->high_word, mode);
- ir_node *or = new_rd_Or(dbg, block, low, high, mode);
- ir_node *cmp = new_rd_Cmp(dbg, block, or, new_r_Const_long(irg, mode, 0));
-
- ir_node *proj = new_r_Proj(cmp, mode_b, pnc);
- set_Cond_selector(node, proj);
- return;
- }
+ /* create a new high compare */
+ block = get_nodes_block(node);
+ irg = get_Block_irg(block);
+ dbg = get_irn_dbg_info(cmp);
+ pnc = get_Proj_proj(sel);
+
+ if (is_Const(right) && is_Const_null(right)) {
+ if (pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) {
+ /* x ==/!= 0 ==> or(low,high) ==/!= 0 */
+ ir_mode *mode = env->low_unsigned;
+ ir_node *low = new_r_Conv(block, lentry->low_word, mode);
+ ir_node *high = new_r_Conv(block, lentry->high_word, mode);
+ ir_node *or = new_rd_Or(dbg, block, low, high, mode);
+ ir_node *cmp = new_rd_Cmp(dbg, block, or, new_r_Const_long(irg, mode, 0));
+
+ ir_node *proj = new_r_Proj(cmp, mode_b, pnc);
+ set_Cond_selector(node, proj);
+ return;
}
+ }
- cmpH = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word);
-
- if (pnc == pn_Cmp_Eq) {
- /* simple case:a == b <==> a_h == b_h && a_l == b_l */
- pmap_entry *entry = pmap_find(env->proj_2_block, projF);
+ cmpH = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word);
- assert(entry);
- dst_blk = entry->value;
+ if (pnc == pn_Cmp_Eq) {
+ /* simple case:a == b <==> a_h == b_h && a_l == b_l */
+ pmap_entry *entry = pmap_find(env->proj_2_block, projF);
- irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
- dbg = get_irn_dbg_info(node);
- irn = new_rd_Cond(dbg, block, irn);
+ assert(entry);
+ dst_blk = entry->value;
- projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(projHF);
- exchange(projF, projHF);
+ irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
+ dbg = get_irn_dbg_info(node);
+ irn = new_rd_Cond(dbg, block, irn);
- projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(projHT);
+ projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(projHF);
+ exchange(projF, projHF);
- new_bl = new_r_Block(irg, 1, &projHT);
+ projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(projHT);
- dbg = get_irn_dbg_info(cmp);
- cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
- irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Eq);
- dbg = get_irn_dbg_info(node);
- irn = new_rd_Cond(dbg, new_bl, irn);
+ new_bl = new_r_Block(irg, 1, &projHT);
- proj = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(proj);
- add_block_cf_input(dst_blk, projHF, proj);
+ dbg = get_irn_dbg_info(cmp);
+ cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
+ irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Eq);
+ dbg = get_irn_dbg_info(node);
+ irn = new_rd_Cond(dbg, new_bl, irn);
- proj = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(proj);
- exchange(projT, proj);
- } else if (pnc == pn_Cmp_Lg) {
- /* simple case:a != b <==> a_h != b_h || a_l != b_l */
- pmap_entry *entry = pmap_find(env->proj_2_block, projT);
+ proj = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(proj);
+ add_block_cf_input(dst_blk, projHF, proj);
- assert(entry);
- dst_blk = entry->value;
+ proj = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(proj);
+ exchange(projT, proj);
+ } else if (pnc == pn_Cmp_Lg) {
+ /* simple case:a != b <==> a_h != b_h || a_l != b_l */
+ pmap_entry *entry = pmap_find(env->proj_2_block, projT);
- irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Lg);
- dbg = get_irn_dbg_info(node);
- irn = new_rd_Cond(dbg, block, irn);
+ assert(entry);
+ dst_blk = entry->value;
- projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(projHT);
- exchange(projT, projHT);
+ irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Lg);
+ dbg = get_irn_dbg_info(node);
+ irn = new_rd_Cond(dbg, block, irn);
- projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(projHF);
+ projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(projHT);
+ exchange(projT, projHT);
- new_bl = new_r_Block(irg, 1, &projHF);
+ projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(projHF);
- dbg = get_irn_dbg_info(cmp);
- cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
- irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Lg);
- dbg = get_irn_dbg_info(node);
- irn = new_rd_Cond(dbg, new_bl, irn);
+ new_bl = new_r_Block(irg, 1, &projHF);
- proj = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(proj);
- add_block_cf_input(dst_blk, projHT, proj);
+ dbg = get_irn_dbg_info(cmp);
+ cmpL = new_rd_Cmp(dbg, new_bl, lentry->low_word, rentry->low_word);
+ irn = new_r_Proj(cmpL, mode_b, pn_Cmp_Lg);
+ dbg = get_irn_dbg_info(node);
+ irn = new_rd_Cond(dbg, new_bl, irn);
- proj = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(proj);
- exchange(projF, proj);
- } else {
- /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
- ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
- pmap_entry *entry;
+ proj = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(proj);
+ add_block_cf_input(dst_blk, projHT, proj);
- entry = pmap_find(env->proj_2_block, projT);
- assert(entry);
- dstT = entry->value;
+ proj = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(proj);
+ exchange(projF, proj);
+ } else {
+ /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
+ ir_node *dstT, *dstF, *newbl_eq, *newbl_l;
+ pmap_entry *entry;
- entry = pmap_find(env->proj_2_block, projF);
- assert(entry);
- dstF = entry->value;
+ entry = pmap_find(env->proj_2_block, projT);
+ assert(entry);
+ dstT = entry->value;
- irn = new_r_Proj(cmpH, mode_b, pnc & ~pn_Cmp_Eq);
- dbg = get_irn_dbg_info(node);
- irn = new_rd_Cond(dbg, block, irn);
+ entry = pmap_find(env->proj_2_block, projF);
+ assert(entry);
+ dstF = entry->value;
- projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(projHT);
- exchange(projT, projHT);
- projT = projHT;
+ irn = new_r_Proj(cmpH, mode_b, pnc & ~pn_Cmp_Eq);
+ dbg = get_irn_dbg_info(node);
+ irn = new_rd_Cond(dbg, block, irn);
- projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(projHF);
+ projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(projHT);
+ exchange(projT, projHT);
+ projT = projHT;
- newbl_eq = new_r_Block(irg, 1, &projHF);
+ projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(projHF);
- irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
- irn = new_rd_Cond(dbg, newbl_eq, irn);
+ newbl_eq = new_r_Block(irg, 1, &projHF);
- proj = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(proj);
- exchange(projF, proj);
- projF = proj;
+ irn = new_r_Proj(cmpH, mode_b, pn_Cmp_Eq);
+ irn = new_rd_Cond(dbg, newbl_eq, irn);
- proj = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(proj);
+ proj = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(proj);
+ exchange(projF, proj);
+ projF = proj;
- newbl_l = new_r_Block(irg, 1, &proj);
+ proj = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(proj);
- dbg = get_irn_dbg_info(cmp);
- cmpL = new_rd_Cmp(dbg, newbl_l, lentry->low_word, rentry->low_word);
- irn = new_r_Proj(cmpL, mode_b, pnc);
- dbg = get_irn_dbg_info(node);
- irn = new_rd_Cond(dbg, newbl_l, irn);
+ newbl_l = new_r_Block(irg, 1, &proj);
- proj = new_r_Proj(irn, mode_X, pn_Cond_true);
- mark_irn_visited(proj);
- add_block_cf_input(dstT, projT, proj);
+ dbg = get_irn_dbg_info(cmp);
+ cmpL = new_rd_Cmp(dbg, newbl_l, lentry->low_word, rentry->low_word);
+ irn = new_r_Proj(cmpL, mode_b, pnc);
+ dbg = get_irn_dbg_info(node);
+ irn = new_rd_Cond(dbg, newbl_l, irn);
- proj = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(proj);
- add_block_cf_input(dstF, projF, proj);
- }
+ proj = new_r_Proj(irn, mode_X, pn_Cond_true);
+ mark_irn_visited(proj);
+ add_block_cf_input(dstT, projT, proj);
- /* we have changed the control flow */
- env->flags |= CF_CHANGED;
- } else {
- idx = get_irn_idx(sel);
-
- if (env->entries[idx]) {
- /*
- Bad, a jump-table with double-word index.
- This should not happen, but if it does we handle
- it like a Conv were between (in other words, ignore
- the high part.
- */
-
- if (! env->entries[idx]->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
- set_Cond_selector(node, env->entries[idx]->low_word);
- }
+ proj = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(proj);
+ add_block_cf_input(dstF, projF, proj);
}
+
+ /* we have changed the control flow */
+ env->flags |= CF_CHANGED;
}
/**
ir_mode *omode = get_irn_mode(node);
ir_node *op = get_Conv_op(node);
ir_mode *imode = get_irn_mode(op);
- unsigned idx = get_irn_idx(node);
ir_graph *irg = get_irn_irg(node);
ir_node *block = get_nodes_block(node);
dbg_info *dbg = get_irn_dbg_info(node);
- node_entry_t *entry = env->entries[idx];
+ ir_node *res_low;
+ ir_node *res_high;
+
ir_mode *low_unsigned = env->low_unsigned;
ir_mode *low_signed
= mode_is_signed(omode) ? env->low_signed : low_unsigned;
- assert(idx < env->n_entries);
-
if (mode_is_int(imode) || mode_is_reference(imode)) {
- if (imode == env->high_signed
- || imode == env->high_unsigned) {
+ if (imode == env->high_signed || imode == env->high_unsigned) {
/* a Conv from Lu to Ls or Ls to Lu */
- unsigned op_idx = get_irn_idx(op);
- node_entry_t *op_entry = env->entries[op_idx];
-
- if (! op_entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
- entry->low_word = op_entry->low_word;
- entry->high_word = new_rd_Conv(dbg, block, op_entry->high_word,
- low_signed);
+ const node_entry_t *op_entry = get_node_entry(env, op);
+ res_low = op_entry->low_word;
+ res_high = new_rd_Conv(dbg, block, op_entry->high_word, low_signed);
} else {
/* simple case: create a high word */
if (imode != low_unsigned)
op = new_rd_Conv(dbg, block, op, low_unsigned);
- entry->low_word = op;
+ res_low = op;
if (mode_is_signed(imode)) {
int c = get_mode_size_bits(low_signed) - 1;
ir_node *cnst = new_r_Const_long(irg, low_unsigned, c);
if (get_irn_mode(op) != low_signed)
op = new_rd_Conv(dbg, block, op, low_signed);
- entry->high_word = new_rd_Shrs(dbg, block, op, cnst,
- low_signed);
+ res_high = new_rd_Shrs(dbg, block, op, cnst, low_signed);
} else {
- entry->high_word = new_r_Const(irg, get_mode_null(low_signed));
+ res_high = new_r_Const(irg, get_mode_null(low_signed));
}
}
} else if (imode == mode_b) {
- entry->low_word = new_rd_Conv(dbg, block, op, low_unsigned);
- entry->high_word = new_r_Const(irg, get_mode_null(low_signed));
+ res_low = new_rd_Conv(dbg, block, op, low_unsigned);
+ res_high = new_r_Const(irg, get_mode_null(low_signed));
} else {
ir_node *irn, *call;
ir_type *mtp = get_conv_type(imode, omode, env);
set_irn_pinned(call, get_irn_pinned(node));
irn = new_r_Proj(call, mode_T, pn_Call_T_result);
- entry->low_word = new_r_Proj(irn, low_unsigned, 0);
- entry->high_word = new_r_Proj(irn, low_signed, 1);
+ res_low = new_r_Proj(irn, low_unsigned, 0);
+ res_high = new_r_Proj(irn, low_signed, 1);
}
+ set_lowered(env, node, res_low, res_high);
}
/**
*/
static void lower_Conv_from_Ll(ir_node *node, lower_env_t *env)
{
- ir_node *op = get_Conv_op(node);
- ir_mode *omode = get_irn_mode(node);
- ir_node *block = get_nodes_block(node);
- dbg_info *dbg = get_irn_dbg_info(node);
- unsigned idx = get_irn_idx(op);
- ir_graph *irg = get_irn_irg(node);
- node_entry_t *entry = env->entries[idx];
-
- assert(idx < env->n_entries);
-
- if (! entry->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
+ ir_node *op = get_Conv_op(node);
+ ir_mode *omode = get_irn_mode(node);
+ ir_node *block = get_nodes_block(node);
+ dbg_info *dbg = get_irn_dbg_info(node);
+ ir_graph *irg = get_irn_irg(node);
+ const node_entry_t *entry = get_node_entry(env, op);
if (mode_is_int(omode) || mode_is_reference(omode)) {
op = entry->low_word;
ir_mode *imode = get_irn_mode(op);
ir_type *mtp = get_conv_type(imode, omode, env);
- irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
- in[0] = entry->low_word;
- in[1] = entry->high_word;
+ irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
+ in[0] = entry->low_word;
+ in[1] = entry->high_word;
+
+ call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
+ set_irn_pinned(call, get_irn_pinned(node));
+ irn = new_r_Proj(call, mode_T, pn_Call_T_result);
+
+ exchange(node, new_r_Proj(irn, omode, 0));
+ }
+}
+
+/**
+ * lower boolean Proj(Cmp)
+ */
+static void lower_Proj_Cmp(lower_env_t *env, ir_node *proj)
+{
+ ir_node *cmp = get_Proj_pred(proj);
+ ir_node *l = get_Cmp_left(cmp);
+ ir_mode *mode = get_irn_mode(l);
+ ir_node *r, *low, *high, *t, *res;
+ pn_Cmp pnc;
+ ir_node *blk;
+ dbg_info *db;
+ const node_entry_t *lentry;
+ const node_entry_t *rentry;
+
+ if (mode != env->high_signed && mode != env->high_unsigned) {
+ return;
+ }
+
+ r = get_Cmp_right(cmp);
+ lentry = get_node_entry(env, l);
+ rentry = get_node_entry(env, r);
+ pnc = get_Proj_proj(proj);
+ blk = get_nodes_block(cmp);
+ db = get_irn_dbg_info(cmp);
+ low = new_rd_Cmp(db, blk, lentry->low_word, rentry->low_word);
+ high = new_rd_Cmp(db, blk, lentry->high_word, rentry->high_word);
- call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 2, in, mtp);
- set_irn_pinned(call, get_irn_pinned(node));
- irn = new_r_Proj(call, mode_T, pn_Call_T_result);
+ if (pnc == pn_Cmp_Eq) {
+ /* simple case:a == b <==> a_h == b_h && a_l == b_l */
+ res = new_rd_And(db, blk,
+ new_r_Proj(low, mode_b, pnc),
+ new_r_Proj(high, mode_b, pnc),
+ mode_b);
+ } else if (pnc == pn_Cmp_Lg) {
+ /* simple case:a != b <==> a_h != b_h || a_l != b_l */
+ res = new_rd_Or(db, blk,
+ new_r_Proj(low, mode_b, pnc),
+ new_r_Proj(high, mode_b, pnc),
+ mode_b);
+ } else {
+ /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
+ t = new_rd_And(db, blk,
+ new_r_Proj(low, mode_b, pnc),
+ new_r_Proj(high, mode_b, pn_Cmp_Eq),
+ mode_b);
+ res = new_rd_Or(db, blk,
+ new_r_Proj(high, mode_b, pnc & ~pn_Cmp_Eq),
+ t,
+ mode_b);
+ }
+ exchange(proj, res);
+}
- exchange(node, new_r_Proj(irn, omode, 0));
+static void lower_Proj(ir_node *node, ir_mode *mode, lower_env_t *env)
+{
+ (void) mode;
+ ir_node *pred = get_Proj_pred(node);
+ if (is_Cmp(pred)) {
+ lower_Proj_Cmp(env, node);
}
}
{
mode = get_irn_mode(node);
- if (mode == env->high_signed
- || mode == env->high_unsigned) {
+ if (mode == env->high_signed || mode == env->high_unsigned) {
lower_Conv_to_Ll(node, env);
} else {
- ir_mode *mode = get_irn_mode(get_Conv_op(node));
+ ir_mode *op_mode = get_irn_mode(get_Conv_op(node));
- if (mode == env->high_signed
- || mode == env->high_unsigned) {
+ if (op_mode == env->high_signed || op_mode == env->high_unsigned) {
lower_Conv_from_Ll(node, env);
}
}
/**
* Lower the method type.
*
+ * @param env the lower environment
* @param mtp the method type to lower
- * @param ent the lower environment
*
* @return the lowered type
*/
-static ir_type *lower_mtp(ir_type *mtp, lower_env_t *env)
+static ir_type *lower_mtp(lower_env_t *env, ir_type *mtp)
{
pmap_entry *entry;
ident *lid;
ir_type *mtp = get_entity_type(ent);
ir_node **in;
int i, j, n;
- unsigned idx;
int need_conv = 0;
(void) mode;
ir_node *pred = get_Return_res(node, i);
ir_mode *mode = get_irn_op_mode(pred);
- if (mode == env->high_signed ||
- mode == env->high_unsigned) {
- idx = get_irn_idx(pred);
- if (! env->entries[idx]->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
+ if (mode == env->high_signed || mode == env->high_unsigned)
need_conv = 1;
- }
}
if (! need_conv)
return;
ent = get_irg_entity(irg);
mtp = get_entity_type(ent);
- mtp = lower_mtp(mtp, env);
+ mtp = lower_mtp(env, mtp);
set_entity_type(ent, mtp);
/* create a new in array */
in[0] = get_Return_mem(node);
for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
- ir_node *pred = get_Return_res(node, i);
-
- idx = get_irn_idx(pred);
- assert(idx < env->n_entries);
+ ir_node *pred = get_Return_res(node, i);
+ ir_mode *pred_mode = get_irn_mode(pred);
- if (env->entries[idx]) {
- in[++j] = env->entries[idx]->low_word;
- in[++j] = env->entries[idx]->high_word;
+ if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
+ const node_entry_t *entry = get_node_entry(env, pred);
+ in[++j] = entry->low_word;
+ in[++j] = entry->high_word;
} else {
in[++j] = pred;
}
if (i == j)
return;
- mtp = lower_mtp(mtp, env);
+ mtp = lower_mtp(env, mtp);
set_entity_type(ent, mtp);
/* switch off optimization for new Proj nodes or they might be CSE'ed
for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
ir_node *pred = get_Proj_pred(proj);
long proj_nr;
- unsigned idx;
ir_mode *mode;
+ ir_mode *mode_l;
+ ir_mode *mode_h;
+ ir_node *res_low;
+ ir_node *res_high;
dbg_info *dbg;
/* do not visit this node again */
proj_nr = get_Proj_proj(proj);
set_Proj_proj(proj, new_projs[proj_nr]);
- idx = get_irn_idx(proj);
- if (env->entries[idx]) {
- ir_mode *low_mode = env->low_unsigned;
-
- mode = get_irn_mode(proj);
-
- if (mode == env->high_signed) {
- mode = env->low_signed;
- } else {
- mode = env->low_unsigned;
- }
-
- dbg = get_irn_dbg_info(proj);
- env->entries[idx]->low_word =
- new_rd_Proj(dbg, args, low_mode, new_projs[proj_nr]);
- env->entries[idx]->high_word =
- new_rd_Proj(dbg, args, mode, new_projs[proj_nr] + 1);
+ mode = get_irn_mode(proj);
+ mode_l = env->low_unsigned;
+ if (mode == env->high_signed) {
+ mode_h = env->low_signed;
+ } else if (mode == env->high_unsigned) {
+ mode_h = env->low_unsigned;
+ } else {
+ continue;
}
+
+ dbg = get_irn_dbg_info(proj);
+ res_low = new_rd_Proj(dbg, args, mode_l, new_projs[proj_nr]);
+ res_high = new_rd_Proj(dbg, args, mode_h, new_projs[proj_nr] + 1);
+ set_lowered(env, proj, res_low, res_high);
}
set_optimize(rem);
}
ir_type *tp = get_Call_type(node);
ir_type *call_tp;
ir_node **in, *proj, *results;
- int n_params, n_res, need_lower = 0;
+ int n_params, n_res;
+ bool need_lower = false;
int i, j;
long *res_numbers = NULL;
(void) mode;
if (is_Primitive_type(tp)) {
ir_mode *mode = get_type_mode(tp);
- if (mode == env->high_signed ||
- mode == env->high_unsigned) {
- need_lower = 1;
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ need_lower = true;
break;
}
}
if (is_Primitive_type(tp)) {
ir_mode *mode = get_type_mode(tp);
- if (mode == env->high_signed ||
- mode == env->high_unsigned) {
- need_lower = 1;
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ need_lower = true;
++j;
}
}
return;
/* let's lower it */
- call_tp = lower_mtp(call_tp, env);
+ call_tp = lower_mtp(env, call_tp);
set_Call_type(node, call_tp);
NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
in[1] = get_Call_ptr(node);
for (j = 2, i = 0; i < n_params; ++i) {
- ir_node *pred = get_Call_param(node, i);
- unsigned idx = get_irn_idx(pred);
-
- if (env->entries[idx]) {
- if (! env->entries[idx]->low_word) {
- /* not ready yet, wait */
- pdeq_putr(env->waitq, node);
- return;
- }
- in[j++] = env->entries[idx]->low_word;
- in[j++] = env->entries[idx]->high_word;
+ ir_node *pred = get_Call_param(node, i);
+ ir_mode *pred_mode = get_irn_mode(pred);
+
+ if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
+ const node_entry_t *pred_entry = get_node_entry(env, pred);
+ in[j++] = pred_entry->low_word;
+ in[j++] = pred_entry->high_word;
} else {
in[j++] = pred;
}
}
}
- if (results) { /* there are results */
+ if (results != NULL) { /* there are results */
int rem = get_optimize();
/* switch off optimization for new Proj nodes or they might be CSE'ed
set_optimize(0);
for (i = j = 0, proj = get_irn_link(results); proj; proj = get_irn_link(proj), ++i, ++j) {
if (get_Proj_pred(proj) == results) {
- long proj_nr = get_Proj_proj(proj);
- unsigned idx;
+ long proj_nr = get_Proj_proj(proj);
+ ir_mode *proj_mode = get_irn_mode(proj);
+ ir_mode *mode_l;
+ ir_mode *mode_h;
+ ir_node *res_low;
+ ir_node *res_high;
+ dbg_info *dbg;
/* found a result */
+ mark_irn_visited(proj);
+
set_Proj_proj(proj, res_numbers[proj_nr]);
- idx = get_irn_idx(proj);
- if (env->entries[idx]) {
- ir_mode *mode = get_irn_mode(proj);
- ir_mode *low_mode = env->low_unsigned;
- dbg_info *dbg;
-
- if (mode == env->high_signed) {
- mode = env->low_signed;
- } else {
- mode = env->low_unsigned;
- }
- dbg = get_irn_dbg_info(proj);
- env->entries[idx]->low_word =
- new_rd_Proj(dbg, results, low_mode, res_numbers[proj_nr]);
- env->entries[idx]->high_word =
- new_rd_Proj(dbg, results, mode, res_numbers[proj_nr] + 1);
+ mode_l = env->low_unsigned;
+ if (proj_mode == env->high_signed) {
+ mode_h = env->low_signed;
+ } else if (proj_mode == env->high_unsigned) {
+ mode_h = env->low_unsigned;
+ } else {
+ continue;
}
- mark_irn_visited(proj);
+
+ dbg = get_irn_dbg_info(proj);
+ res_low = new_rd_Proj(dbg, results, mode_l, res_numbers[proj_nr]);
+ res_high = new_rd_Proj(dbg, results, mode_h, res_numbers[proj_nr] + 1);
+ set_lowered(env, proj, res_low, res_high);
}
}
set_optimize(rem);
*/
static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env)
{
- unsigned idx = get_irn_idx(node);
- ir_graph *irg = get_irn_irg(node);
ir_mode *low_mode = env->low_unsigned;
-
- env->entries[idx]->low_word = new_r_Unknown(irg, low_mode);
- env->entries[idx]->high_word = new_r_Unknown(irg, mode);
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *res_low = new_r_Unknown(irg, low_mode);
+ ir_node *res_high = new_r_Unknown(irg, mode);
+ set_lowered(env, node, res_low, res_high);
}
/**
*
* First step: just create two templates
*/
-static void lower_Phi(ir_node *phi, ir_mode *mode, lower_env_t *env)
+static void lower_Phi(lower_env_t *env, ir_node *phi)
{
- ir_mode *mode_l = env->low_unsigned;
- ir_graph *irg = get_irn_irg(phi);
- ir_node *block, *unk_l, *unk_h, *phi_l, *phi_h;
- ir_node **inl, **inh;
+ ir_mode *mode = get_irn_mode(phi);
+ int i;
+ int arity;
+ ir_node **in_l;
+ ir_node **in_h;
+ ir_node *unk_l;
+ ir_node *unk_h;
+ ir_node *phi_l;
+ ir_node *phi_h;
dbg_info *dbg;
- unsigned idx;
- int i, arity = get_Phi_n_preds(phi);
- int enq = 0;
-
- idx = get_irn_idx(phi);
- if (env->entries[idx]->low_word) {
- /* Phi nodes already build, check for inputs */
- ir_node *phil = env->entries[idx]->low_word;
- ir_node *phih = env->entries[idx]->high_word;
-
- for (i = 0; i < arity; ++i) {
- ir_node *pred = get_Phi_pred(phi, i);
- unsigned idx = get_irn_idx(pred);
-
- if (env->entries[idx]->low_word) {
- set_Phi_pred(phil, i, env->entries[idx]->low_word);
- set_Phi_pred(phih, i, env->entries[idx]->high_word);
- } else {
- /* still not ready */
- pdeq_putr(env->waitq, phi);
- return;
- }
- }
- }
-
- /* first create a new in array */
- NEW_ARR_A(ir_node *, inl, arity);
- NEW_ARR_A(ir_node *, inh, arity);
- unk_l = new_r_Dummy(irg, mode_l);
- unk_h = new_r_Dummy(irg, mode);
+ ir_node *block;
+ ir_graph *irg;
+ ir_mode *mode_l;
+ ir_mode *mode_h;
+ /* enqueue predecessors */
+ arity = get_Phi_n_preds(phi);
for (i = 0; i < arity; ++i) {
ir_node *pred = get_Phi_pred(phi, i);
- unsigned idx = get_irn_idx(pred);
+ pdeq_putr(env->waitq, pred);
+ }
- if (env->entries[idx]->low_word) {
- inl[i] = env->entries[idx]->low_word;
- inh[i] = env->entries[idx]->high_word;
- } else {
- inl[i] = unk_l;
- inh[i] = unk_h;
- enq = 1;
- }
+ if (mode != env->high_signed && mode != env->high_unsigned)
+ return;
+
+ /* first create a new in array */
+ NEW_ARR_A(ir_node *, in_l, arity);
+ NEW_ARR_A(ir_node *, in_h, arity);
+ irg = get_irn_irg(phi);
+ mode_l = env->low_unsigned;
+ mode_h = mode == env->high_signed ? env->low_signed : env->low_unsigned;
+ unk_l = new_r_Dummy(irg, mode_l);
+ unk_h = new_r_Dummy(irg, mode_h);
+ for (i = 0; i < arity; ++i) {
+ in_l[i] = unk_l;
+ in_h[i] = unk_h;
}
dbg = get_irn_dbg_info(phi);
block = get_nodes_block(phi);
+ phi_l = new_rd_Phi(dbg, block, arity, in_l, mode_l);
+ phi_h = new_rd_Phi(dbg, block, arity, in_h, mode_h);
- idx = get_irn_idx(phi);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = phi_l = new_rd_Phi(dbg, block, arity, inl, mode_l);
- env->entries[idx]->high_word = phi_h = new_rd_Phi(dbg, block, arity, inh, mode);
+ set_lowered(env, phi, phi_l, phi_h);
+
+ /* remember that we need to fixup the predecessors later */
+ ARR_APP1(ir_node*, env->lowered_phis, phi);
/* Don't forget to link the new Phi nodes into the block.
* Beware that some Phis might be optimized away. */
add_Block_phi(block, phi_l);
if (is_Phi(phi_h))
add_Block_phi(block, phi_h);
+}
+
+static void fixup_phi(lower_env_t *env, ir_node *phi)
+{
+ const node_entry_t *entry = get_node_entry(env, phi);
+ ir_node *phi_l = entry->low_word;
+ ir_node *phi_h = entry->high_word;
+ int arity = get_Phi_n_preds(phi);
+ int i;
+
+ /* exchange phi predecessors which are lowered by now */
+ for (i = 0; i < arity; ++i) {
+ ir_node *pred = get_Phi_pred(phi, i);
+ const node_entry_t *pred_entry = get_node_entry(env, pred);
- if (enq) {
- /* not yet finished */
- pdeq_putr(env->waitq, phi);
+ set_Phi_pred(phi_l, i, pred_entry->low_word);
+ set_Phi_pred(phi_h, i, pred_entry->high_word);
}
}
*/
static void lower_Mux(ir_node *mux, ir_mode *mode, lower_env_t *env)
{
- ir_node *block, *val;
- ir_node *true_l, *true_h, *false_l, *false_h, *sel;
- dbg_info *dbg;
- unsigned idx;
-
- val = get_Mux_true(mux);
- idx = get_irn_idx(val);
- if (env->entries[idx]->low_word) {
- /* Values already build */
- true_l = env->entries[idx]->low_word;
- true_h = env->entries[idx]->high_word;
- } else {
- /* still not ready */
- pdeq_putr(env->waitq, mux);
- return;
- }
-
- val = get_Mux_false(mux);
- idx = get_irn_idx(val);
- if (env->entries[idx]->low_word) {
- /* Values already build */
- false_l = env->entries[idx]->low_word;
- false_h = env->entries[idx]->high_word;
- } else {
- /* still not ready */
- pdeq_putr(env->waitq, mux);
- return;
- }
-
-
- sel = get_Mux_sel(mux);
-
- dbg = get_irn_dbg_info(mux);
- block = get_nodes_block(mux);
-
- idx = get_irn_idx(mux);
- assert(idx < env->n_entries);
- env->entries[idx]->low_word = new_rd_Mux(dbg, block, sel, false_l, true_l, env->low_unsigned);
- env->entries[idx]->high_word = new_rd_Mux(dbg, block, sel, false_h, true_h, mode);
+ ir_node *truen = get_Mux_true(mux);
+ ir_node *falsen = get_Mux_false(mux);
+ ir_node *sel = get_Mux_sel(mux);
+ const node_entry_t *true_entry = get_node_entry(env, truen);
+ const node_entry_t *false_entry = get_node_entry(env, falsen);
+ ir_node *true_l = true_entry->low_word;
+ ir_node *true_h = true_entry->high_word;
+ ir_node *false_l = false_entry->low_word;
+ ir_node *false_h = false_entry->high_word;
+ dbg_info *dbgi = get_irn_dbg_info(mux);
+ ir_node *block = get_nodes_block(mux);
+ ir_node *res_low
+ = new_rd_Mux(dbgi, block, sel, false_l, true_l, env->low_unsigned);
+ ir_node *res_high
+ = new_rd_Mux(dbgi, block, sel, false_h, true_h, mode);
+ set_lowered(env, mux, res_low, res_high);
}
/**
/**
* check for opcodes that must always be lowered.
*/
-static int always_lower(ir_opcode code)
+static bool always_lower(ir_opcode code)
{
switch (code) {
case iro_ASM:
case iro_Cond:
case iro_Conv:
case iro_Sel:
- return 1;
+ return true;
default:
- return 0;
- }
-}
-
-/**
- * lower boolean Proj(Cmp)
- */
-static ir_node *lower_boolean_Proj_Cmp(ir_node *proj, ir_node *cmp, lower_env_t *env)
-{
- unsigned lidx;
- unsigned ridx;
- ir_node *l, *r, *low, *high, *t, *res;
- pn_Cmp pnc;
- ir_node *blk;
- dbg_info *db;
-
- l = get_Cmp_left(cmp);
- lidx = get_irn_idx(l);
- if (! env->entries[lidx]->low_word) {
- /* still not ready */
- return NULL;
- }
-
- r = get_Cmp_right(cmp);
- ridx = get_irn_idx(r);
- if (! env->entries[ridx]->low_word) {
- /* still not ready */
- return NULL;
- }
-
- pnc = get_Proj_proj(proj);
- blk = get_nodes_block(cmp);
- db = get_irn_dbg_info(cmp);
- low = new_rd_Cmp(db, blk, env->entries[lidx]->low_word, env->entries[ridx]->low_word);
- high = new_rd_Cmp(db, blk, env->entries[lidx]->high_word, env->entries[ridx]->high_word);
-
- if (pnc == pn_Cmp_Eq) {
- /* simple case:a == b <==> a_h == b_h && a_l == b_l */
- res = new_rd_And(db, blk,
- new_r_Proj(low, mode_b, pnc),
- new_r_Proj(high, mode_b, pnc),
- mode_b);
- } else if (pnc == pn_Cmp_Lg) {
- /* simple case:a != b <==> a_h != b_h || a_l != b_l */
- res = new_rd_Or(db, blk,
- new_r_Proj(low, mode_b, pnc),
- new_r_Proj(high, mode_b, pnc),
- mode_b);
- } else {
- /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
- t = new_rd_And(db, blk,
- new_r_Proj(low, mode_b, pnc),
- new_r_Proj(high, mode_b, pn_Cmp_Eq),
- mode_b);
- res = new_rd_Or(db, blk,
- new_r_Proj(high, mode_b, pnc & ~pn_Cmp_Eq),
- t,
- mode_b);
- }
- return res;
-}
-
-/**
- * The type of a lower function.
- *
- * @param node the node to be lowered
- * @param mode the low mode for the destination node
- * @param env the lower environment
- */
-typedef void (*lower_func)(ir_node *node, ir_mode *mode, lower_env_t *env);
-
-/**
- * Lower a node.
- */
-static void lower_ops(ir_node *node, void *env)
-{
- lower_env_t *lenv = env;
- node_entry_t *entry;
- unsigned idx = get_irn_idx(node);
- ir_mode *mode = get_irn_mode(node);
-
- if (mode == mode_b || is_Mux(node) || is_Conv(node)) {
- int i;
-
- for (i = get_irn_arity(node) - 1; i >= 0; --i) {
- ir_node *proj = get_irn_n(node, i);
-
- if (is_Proj(proj)) {
- ir_node *cmp = get_Proj_pred(proj);
-
- if (is_Cmp(cmp)) {
- ir_node *arg = get_Cmp_left(cmp);
-
- mode = get_irn_mode(arg);
- if (mode == lenv->high_signed ||
- mode == lenv->high_unsigned) {
- ir_node *res = lower_boolean_Proj_Cmp(proj, cmp, lenv);
-
- if (res == NULL) {
- /* could not lower because predecessors not ready */
- waitq_put(lenv->waitq, node);
- return;
- }
- set_irn_n(node, i, res);
- }
- }
- }
- }
- }
-
- entry = idx < lenv->n_entries ? lenv->entries[idx] : NULL;
- if (entry || always_lower(get_irn_opcode(node))) {
- ir_op *op = get_irn_op(node);
- lower_func func = (lower_func)op->ops.generic;
-
- if (func) {
- mode = get_irn_op_mode(node);
-
- if (mode == lenv->high_signed)
- mode = lenv->low_signed;
- else
- mode = lenv->low_unsigned;
-
- DB((dbg, LEVEL_1, " %+F\n", node));
- func(node, mode, lenv);
- }
+ return false;
}
}
-#define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
-
/**
* Compare two op_mode_entry_t's.
*/
*
* @param mtp the method type
*/
-static int mtp_must_be_lowered(ir_type *mtp, lower_env_t *env)
+static bool mtp_must_be_lowered(lower_env_t *env, ir_type *mtp)
{
- int i, n_params;
-
- n_params = get_method_n_params(mtp);
- if (n_params <= 0)
- return 0;
+ int n_params = get_method_n_params(mtp);
+ int i;
/* first check if we have parameters that must be fixed */
for (i = 0; i < n_params; ++i) {
if (mode == env->high_signed ||
mode == env->high_unsigned)
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
+/* Determine which modes need to be lowered */
static void setup_modes(lower_env_t *env)
{
unsigned size_bits = env->params->doubleword_size;
arithmetic, modulo_shift);
}
+static void enqueue_preds(lower_env_t *env, ir_node *node)
+{
+ int arity = get_irn_arity(node);
+ int i;
+
+ for (i = 0; i < arity; ++i) {
+ ir_node *pred = get_irn_n(node, i);
+ pdeq_putr(env->waitq, pred);
+ }
+}
+
+static void lower_node(lower_env_t *env, ir_node *node)
+{
+ int arity;
+ int i;
+ lower_func func;
+ ir_op *op;
+ ir_mode *mode;
+ unsigned idx;
+ node_entry_t *entry;
+
+ if (irn_visited(node))
+ return;
+ mark_irn_visited(node);
+
+ /* cycles are always broken at Phi and Block nodes. So we don't need special
+ * magic in all the other lower functions */
+ if (is_Block(node)) {
+ enqueue_preds(env, node);
+ return;
+ } else if (is_Phi(node)) {
+ lower_Phi(env, node);
+ return;
+ }
+
+ /* depth-first: descend into operands */
+ if (!is_Block(node)) {
+ ir_node *block = get_nodes_block(node);
+ lower_node(env, block);
+ }
+
+ arity = get_irn_arity(node);
+ for (i = 0; i < arity; ++i) {
+ ir_node *pred = get_irn_n(node, i);
+ lower_node(env, pred);
+ }
+
+ op = get_irn_op(node);
+ func = (lower_func) op->ops.generic;
+ if (func == NULL)
+ return;
+
+ idx = get_irn_idx(node);
+ entry = idx < env->n_entries ? env->entries[idx] : NULL;
+ if (entry != NULL || always_lower(get_irn_opcode(node))) {
+ mode = get_irn_op_mode(node);
+ if (mode == env->high_signed) {
+ mode = env->low_signed;
+ } else {
+ mode = env->low_unsigned;
+ }
+ DB((dbg, LEVEL_1, " %+F\n", node));
+ func(node, mode, env);
+ }
+}
+
+static void lower_irg(lower_env_t *env, ir_graph *irg)
+{
+ ir_entity *ent;
+ ir_type *mtp;
+ unsigned n_idx;
+
+ obstack_init(&env->obst);
+
+ n_idx = get_irg_last_idx(irg);
+ n_idx = n_idx + (n_idx >> 2); /* add 25% */
+ env->n_entries = n_idx;
+ env->entries = NEW_ARR_F(node_entry_t*, n_idx);
+ memset(env->entries, 0, sizeof(env->entries[0]) * n_idx);
+
+ env->irg = irg;
+ env->l_mtp = NULL;
+ env->flags = 0;
+ env->proj_2_block = pmap_create();
+ env->value_param_tp = NULL;
+
+ ent = get_irg_entity(irg);
+ mtp = get_entity_type(ent);
+
+ if (mtp_must_be_lowered(env, mtp)) {
+ ir_type *ltp = lower_mtp(env, mtp);
+ env->flags |= MUST_BE_LOWERED;
+ set_entity_type(ent, ltp);
+ env->l_mtp = ltp;
+ env->value_param_tp = get_method_value_param_type(mtp);
+ }
+
+ /* first step: link all nodes and allocate data */
+ ir_reserve_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
+ irg_walk_graph(irg, firm_clear_node_and_phi_links,
+ prepare_links_and_handle_rotl, env);
+
+ if (env->flags & MUST_BE_LOWERED) {
+ int i;
+ ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
+ inc_irg_visited(irg);
+
+ assert(pdeq_empty(env->waitq));
+ pdeq_putr(env->waitq, get_irg_end(irg));
+
+ env->lowered_phis = NEW_ARR_F(ir_node*, 0);
+ while (!pdeq_empty(env->waitq)) {
+ ir_node *node = pdeq_getl(env->waitq);
+ lower_node(env, node);
+ }
+
+ /* we need to fixup phis */
+ for (i = 0; i < ARR_LEN(env->lowered_phis); ++i) {
+ ir_node *phi = env->lowered_phis[i];
+ fixup_phi(env, phi);
+ }
+ DEL_ARR_F(env->lowered_phis);
+
+
+ ir_free_resources(irg, IR_RESOURCE_IRN_VISITED);
+
+ /* outs are invalid, we changed the graph */
+ set_irg_outs_inconsistent(irg);
+
+ if (env->flags & CF_CHANGED) {
+ /* control flow changed, dominance info is invalid */
+ set_irg_doms_inconsistent(irg);
+ set_irg_extblk_inconsistent(irg);
+ set_irg_loopinfo_inconsistent(irg);
+ }
+ }
+
+ ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
+
+ pmap_destroy(env->proj_2_block);
+ DEL_ARR_F(env->entries);
+ obstack_free(&env->obst, NULL);
+}
+
/*
* Do the lowering.
*/
lower_env_t lenv;
int i;
- if (! param)
- return;
-
+ assert(param != NULL);
FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
memset(&lenv, 0, sizeof(lenv));
set_method_res_type(unop_tp_s, 1, tp_s);
}
- lenv.tv_mode_bytes = new_tarval_from_long(param->doubleword_size/(2*8), lenv.low_unsigned);
- lenv.tv_mode_bits = new_tarval_from_long(param->doubleword_size/2, lenv.low_unsigned);
- lenv.waitq = new_pdeq();
- lenv.first_id = new_id_from_chars(param->little_endian ? ".l" : ".h", 2);
- lenv.next_id = new_id_from_chars(param->little_endian ? ".h" : ".l", 2);
-
clear_irp_opcodes_generic_func();
- enter_lower_func(op_Add, lower_Binop);
+ enter_lower_func(op_Add, lower_binop);
enter_lower_func(op_And, lower_And);
enter_lower_func(op_ASM, lower_ASM);
enter_lower_func(op_Call, lower_Call);
enter_lower_func(op_Load, lower_Load);
enter_lower_func(op_Minus, lower_Unop);
enter_lower_func(op_Mod, lower_Mod);
- enter_lower_func(op_Mul, lower_Binop);
+ enter_lower_func(op_Mul, lower_binop);
enter_lower_func(op_Mux, lower_Mux);
enter_lower_func(op_Not, lower_Not);
enter_lower_func(op_Or, lower_Or);
- enter_lower_func(op_Phi, lower_Phi);
+ enter_lower_func(op_Proj, lower_Proj);
enter_lower_func(op_Return, lower_Return);
enter_lower_func(op_Sel, lower_Sel);
enter_lower_func(op_Shl, lower_Shl);
enter_lower_func(op_Shrs, lower_Shrs);
enter_lower_func(op_Start, lower_Start);
enter_lower_func(op_Store, lower_Store);
- enter_lower_func(op_Sub, lower_Binop);
+ enter_lower_func(op_Sub, lower_binop);
enter_lower_func(op_Unknown, lower_Unknown);
+ lenv.tv_mode_bytes = new_tarval_from_long(param->doubleword_size/(2*8), lenv.low_unsigned);
+ lenv.tv_mode_bits = new_tarval_from_long(param->doubleword_size/2, lenv.low_unsigned);
+ lenv.waitq = new_pdeq();
+ lenv.first_id = new_id_from_chars(param->little_endian ? ".l" : ".h", 2);
+ lenv.next_id = new_id_from_chars(param->little_endian ? ".h" : ".l", 2);
+
/* transform all graphs */
for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
- ir_graph *irg = get_irp_irg(i);
- ir_entity *ent;
- ir_type *mtp;
- unsigned n_idx;
-
- obstack_init(&lenv.obst);
-
- n_idx = get_irg_last_idx(irg);
- n_idx = n_idx + (n_idx >> 2); /* add 25% */
- lenv.n_entries = n_idx;
- lenv.entries = NEW_ARR_F(node_entry_t *, n_idx);
- memset(lenv.entries, 0, n_idx * sizeof(lenv.entries[0]));
-
- lenv.irg = irg;
- lenv.l_mtp = NULL;
- lenv.flags = 0;
- lenv.proj_2_block = pmap_create();
- lenv.value_param_tp = NULL;
- ir_reserve_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
-
- ent = get_irg_entity(irg);
- mtp = get_entity_type(ent);
-
- if (mtp_must_be_lowered(mtp, &lenv)) {
- ir_type *ltp = lower_mtp(mtp, &lenv);
- lenv.flags |= MUST_BE_LOWERED;
- set_entity_type(ent, ltp);
- lenv.l_mtp = ltp;
- lenv.value_param_tp = get_method_value_param_type(mtp);
- }
-
- /* first step: link all nodes and allocate data */
- irg_walk_graph(irg, firm_clear_node_and_phi_links, prepare_links_and_handle_rotl, &lenv);
-
- if (lenv.flags & MUST_BE_LOWERED) {
- DB((dbg, LEVEL_1, "Lowering graph %+F\n", irg));
-
- /* must do some work */
- irg_walk_graph(irg, NULL, lower_ops, &lenv);
-
- /* last step: all waiting nodes */
- DB((dbg, LEVEL_1, "finishing waiting nodes:\n"));
- while (! pdeq_empty(lenv.waitq)) {
- ir_node *node = pdeq_getl(lenv.waitq);
-
- lower_ops(node, &lenv);
- }
-
- ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
-
- /* outs are invalid, we changed the graph */
- set_irg_outs_inconsistent(irg);
-
- if (lenv.flags & CF_CHANGED) {
- /* control flow changed, dominance info is invalid */
- set_irg_doms_inconsistent(irg);
- set_irg_extblk_inconsistent(irg);
- set_irg_loopinfo_inconsistent(irg);
- }
- } else {
- ir_free_resources(irg, IR_RESOURCE_PHI_LIST | IR_RESOURCE_IRN_LINK);
- }
- pmap_destroy(lenv.proj_2_block);
- DEL_ARR_F(lenv.entries);
- obstack_free(&lenv.obst, NULL);
+ ir_graph *irg = get_irp_irg(i);
+ lower_irg(&lenv, irg);
}
del_pdeq(lenv.waitq);
}