/*
- * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
- *
* This file is part of libFirm.
- *
- * This file may be distributed and/or modified under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation and appearing in the file LICENSE.GPL included in the
- * packaging of this file.
- *
- * Licensees holding valid libFirm Professional Edition licenses may use
- * this file in accordance with the libFirm Commercial License.
- * Agreement provided with the Software.
- *
- * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
- * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @brief Lower double word operations, i.e. 64bit -> 32bit, 32bit -> 16bit etc.
* @date 8.10.2004
* @author Michael Beck
- * @version $Id$
*/
#include "config.h"
#include <stdbool.h>
#include <assert.h>
+#include "be.h"
#include "error.h"
#include "lowering.h"
#include "irnode_t.h"
+#include "irnodeset.h"
#include "irgraph_t.h"
#include "irmode_t.h"
#include "iropt_t.h"
#include "irgwalk.h"
#include "ircons.h"
#include "irflag.h"
+#include "iroptimize.h"
#include "irtools.h"
#include "debug.h"
#include "set.h"
#include "irdump.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);
+#include "lower_dw.h"
/** A map from (op, imode, omode) to Intrinsic functions entities. */
static set *intrinsic_fkt;
/** A map from a method type to its lowered type. */
static pmap *lowered_type;
+/** A map from a builtin type to its lower and higher type. */
+static pmap *lowered_builtin_type_high;
+static pmap *lowered_builtin_type_low;
+
/** The types for the binop and unop intrinsics. */
-static ir_type *binop_tp_u, *binop_tp_s, *unop_tp_u, *unop_tp_s, *shiftop_tp_u, *shiftop_tp_s, *tp_s, *tp_u;
+static ir_type *binop_tp_u, *binop_tp_s, *unop_tp_u, *unop_tp_s, *tp_s, *tp_u;
+
+static ir_nodeset_t created_mux_nodes;
/** the debug handle */
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
ir_type *mtd; /**< the associated method type of this (imode, omode) pair */
} conv_tp_entry_t;
-/**
- * Every double word node will be replaced,
- * we need some store to hold the replacement:
- */
-typedef struct node_entry_t {
- ir_node *low_word; /**< the low word */
- ir_node *high_word; /**< the high word */
-} node_entry_t;
-
enum lower_flags {
MUST_BE_LOWERED = 1, /**< graph must be lowered */
CF_CHANGED = 2, /**< control flow was changed */
/**
* The lower environment.
*/
-struct lower_env_t {
- node_entry_t **entries; /**< entries per node */
+typedef struct lower_dw_env_t {
+ lower64_entry_t **entries; /**< entries per node */
ir_graph *irg;
- struct obstack obst; /**< an obstack holding the temporary data */
- ir_type *l_mtp; /**< lowered method type of the current method */
- ir_tarval *tv_mode_bytes; /**< a tarval containing the number of bytes in the lowered modes */
- ir_tarval *tv_mode_bits; /**< a tarval containing the number of bits in the lowered modes */
+ struct obstack obst; /**< an obstack holding the temporary data */
+ ir_tarval *tv_mode_bytes; /**< a tarval containing the number of bytes 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 */
ir_mode *low_signed; /**< word signed type */
ir_mode *low_unsigned; /**< word unsigned type */
ident *first_id; /**< .l for little and .h for big endian */
ident *next_id; /**< .h for little and .l for big endian */
- const lwrdw_param_t *params; /**< transformation parameter */
- unsigned flags; /**< some flags */
- unsigned n_entries; /**< number of entries */
- ir_type *value_param_tp; /**< the old value param type */
-};
+ const lwrdw_param_t *params; /**< transformation parameter */
+ unsigned flags; /**< some flags */
+ unsigned n_entries; /**< number of entries */
+} lower_dw_env_t;
+
+static lower_dw_env_t *env;
+
+static void lower_node(ir_node *node);
/**
* Create a method type for a Conv emulation from imode to omode.
*/
-static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env)
+static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode)
{
conv_tp_entry_t key, *entry;
ir_type *mtd;
key.omode = omode;
key.mtd = NULL;
- entry = (conv_tp_entry_t*)set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
+ entry = set_insert(conv_tp_entry_t, conv_types, &key, sizeof(key), hash_ptr(imode) ^ hash_ptr(omode));
if (! entry->mtd) {
int n_param = 1, n_res = 1;
/* set param types and result types */
n_param = 0;
if (imode == env->high_signed) {
- set_method_param_type(mtd, n_param++, tp_u);
- set_method_param_type(mtd, n_param++, tp_s);
+ if (env->params->little_endian) {
+ set_method_param_type(mtd, n_param++, tp_u);
+ set_method_param_type(mtd, n_param++, tp_s);
+ } else {
+ set_method_param_type(mtd, n_param++, tp_s);
+ set_method_param_type(mtd, n_param++, tp_u);
+ }
} else if (imode == env->high_unsigned) {
set_method_param_type(mtd, n_param++, tp_u);
set_method_param_type(mtd, n_param++, tp_u);
n_res = 0;
if (omode == env->high_signed) {
- set_method_res_type(mtd, n_res++, tp_u);
- set_method_res_type(mtd, n_res++, tp_s);
+ if (env->params->little_endian) {
+ set_method_res_type(mtd, n_res++, tp_u);
+ set_method_res_type(mtd, n_res++, tp_s);
+ } else {
+ set_method_res_type(mtd, n_res++, tp_s);
+ set_method_res_type(mtd, n_res++, tp_u);
+ }
} else if (omode == env->high_unsigned) {
set_method_res_type(mtd, n_res++, tp_u);
set_method_res_type(mtd, n_res++, tp_u);
*/
static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
{
- int i, arity = get_irn_arity(block);
- ir_node **in, *phi;
+ int i, arity = get_Block_n_cfgpreds(block);
+ ir_node **in;
assert(nr < arity);
NEW_ARR_A(ir_node *, in, arity + 1);
for (i = 0; i < arity; ++i)
- in[i] = get_irn_n(block, i);
+ in[i] = get_Block_cfgpred(block, i);
in[i] = cf;
set_irn_in(block, i + 1, in);
- for (phi = get_Block_phis(block); phi != NULL; phi = get_Phi_next(phi)) {
+ foreach_out_edge(block, edge) {
+ ir_node *phi = get_edge_src_irn(edge);
+ if (!is_Phi(phi))
+ continue;
+
for (i = 0; i < arity; ++i)
in[i] = get_irn_n(phi, i);
in[i] = in[nr];
*/
static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
{
- int i, arity = get_irn_arity(block);
+ int i, arity = get_Block_n_cfgpreds(block);
int nr = 0;
for (i = 0; i < arity; ++i) {
- if (get_irn_n(block, i) == tmpl) {
+ if (get_Block_cfgpred(block, i) == tmpl) {
nr = i;
break;
}
* Walker, prepare the node links and determine which nodes need to be lowered
* at all.
*/
-static void prepare_links(lower_env_t *env, ir_node *node)
+static void prepare_links(ir_node *node)
{
- ir_mode *mode = get_irn_op_mode(node);
- node_entry_t *link;
- int i;
+ ir_mode *mode = get_irn_op_mode(node);
+ lower64_entry_t *link;
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(&env->obst, node_entry_t);
+ link = OALLOCZ(&env->obst, lower64_entry_t);
if (idx >= env->n_entries) {
/* enlarge: this happens only for Rotl nodes which is RARELY */
unsigned old = env->n_entries;
unsigned n_idx = idx + (idx >> 3);
- ARR_RESIZE(node_entry_t *, env->entries, n_idx);
+ ARR_RESIZE(lower64_entry_t *, env->entries, n_idx);
memset(&env->entries[old], 0, (n_idx - old) * sizeof(env->entries[0]));
env->n_entries = n_idx;
}
env->flags |= MUST_BE_LOWERED;
}
return;
- }
-
- if (is_Proj(node)) {
- /* link all Proj nodes to its predecessor:
- Note that Tuple Proj's and its Projs are linked either. */
- ir_node *pred = get_Proj_pred(node);
-
- set_irn_link(node, get_irn_link(pred));
- set_irn_link(pred, node);
- } else if (is_Phi(node)) {
- /* link all Phi nodes to its block */
- ir_node *block = get_nodes_block(node);
- add_Block_phi(block, node);
- } else if (is_Block(node)) {
- /* fill the Proj -> Block map */
- for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
- ir_node *pred = get_Block_cfgpred(node, i);
-
- if (is_Proj(pred))
- pmap_insert(env->proj_2_block, pred, node);
+ } else if (is_Call(node)) {
+ /* Special case: If the result of the Call is never used, we won't
+ * find a Proj with a mode that potentially triggers MUST_BE_LOWERED
+ * to be set. Thus, if we see a call, we check its result types and
+ * decide whether MUST_BE_LOWERED has to be set.
+ */
+ ir_type *tp = get_Call_type(node);
+ size_t n_res, i;
+
+ n_res = get_method_n_ress(tp);
+ for (i = 0; i < n_res; ++i) {
+ ir_type *rtp = get_method_res_type(tp, i);
+
+ if (is_Primitive_type(rtp)) {
+ ir_mode *rmode = get_type_mode(rtp);
+
+ if (rmode == env->high_signed || rmode == env->high_unsigned) {
+ env->flags |= MUST_BE_LOWERED;
+ }
+ }
}
}
}
-static node_entry_t *get_node_entry(lower_env_t *env, ir_node *node)
+lower64_entry_t *get_node_entry(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)
+void ir_set_dw_lowered(ir_node *old, ir_node *new_low, ir_node *new_high)
{
- node_entry_t *entry = get_node_entry(env, old);
+ lower64_entry_t *entry = get_node_entry(old);
entry->low_word = new_low;
entry->high_word = new_high;
}
+ir_mode *ir_get_low_unsigned_mode(void)
+{
+ return env->low_unsigned;
+}
+
/**
* Translate a Constant: create two.
*/
-static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Const(ir_node *node, ir_mode *mode)
{
ir_graph *irg = get_irn_irg(node);
dbg_info *dbg = get_irn_dbg_info(node);
ir_tarval *tv = get_Const_tarval(node);
ir_tarval *tv_l = tarval_convert_to(tv, low_mode);
ir_node *res_low = new_rd_Const(dbg, irg, tv_l);
- ir_tarval *tv_shrs = tarval_shrs(tv, env->tv_mode_bits);
+ ir_tarval *tv_shrs = tarval_shrs_unsigned(tv, get_mode_size_bits(low_mode));
ir_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_set_dw_lowered(node, res_low, res_high);
}
/**
* Translate a Load: create two.
*/
-static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Load(ir_node *node, ir_mode *mode)
{
ir_mode *low_mode = env->low_unsigned;
ir_graph *irg = get_irn_irg(node);
ir_node *adr = get_Load_ptr(node);
ir_node *mem = get_Load_mem(node);
- ir_node *low, *high, *proj;
+ ir_node *low;
+ ir_node *high;
+ ir_node *proj_m;
dbg_info *dbg;
ir_node *block = get_nodes_block(node);
ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
}
/* create two loads */
- dbg = get_irn_dbg_info(node);
- low = new_rd_Load(dbg, block, mem, low, low_mode, volatility);
- proj = new_r_Proj(low, mode_M, pn_Load_M);
- high = new_rd_Load(dbg, block, proj, high, mode, volatility);
-
- set_lowered(env, node, low, high);
+ dbg = get_irn_dbg_info(node);
+ low = new_rd_Load(dbg, block, mem, low, low_mode, volatility);
+ proj_m = new_r_Proj(low, mode_M, pn_Load_M);
+ high = new_rd_Load(dbg, block, proj_m, high, mode, volatility);
+
+ foreach_out_edge_safe(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
switch (get_Proj_proj(proj)) {
case pn_Load_M: /* Memory result. */
/* put it to the second one */
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);
+ ir_set_dw_lowered(proj, res_low, res_high);
break;
}
default:
/**
* Translate a Store: create two.
*/
-static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- ir_graph *irg;
- ir_node *block, *adr, *mem;
- ir_node *low, *high, *proj;
- dbg_info *dbg;
- ir_node *value = get_Store_value(node);
- const node_entry_t *entry = get_node_entry(env, value);
+static void lower_Store(ir_node *node, ir_mode *mode)
+{
+ ir_graph *irg;
+ ir_node *block, *adr, *mem;
+ ir_node *low, *high, *proj_m;
+ dbg_info *dbg;
+ ir_node *value = get_Store_value(node);
+ const lower64_entry_t *entry = get_node_entry(value);
ir_cons_flags volatility = get_Store_volatility(node) == volatility_is_volatile
? cons_volatile : cons_none;
(void) mode;
}
/* create two Stores */
- dbg = get_irn_dbg_info(node);
- low = new_rd_Store(dbg, block, mem, low, entry->low_word, volatility);
- proj = new_r_Proj(low, mode_M, pn_Store_M);
- high = new_rd_Store(dbg, block, proj, high, entry->high_word, volatility);
-
- set_lowered(env, node, low, high);
+ dbg = get_irn_dbg_info(node);
+ low = new_rd_Store(dbg, block, mem, low, entry->low_word, volatility);
+ proj_m = new_r_Proj(low, mode_M, pn_Store_M);
+ high = new_rd_Store(dbg, block, proj_m, high, entry->high_word, volatility);
+
+ foreach_out_edge_safe(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
switch (get_Proj_proj(proj)) {
case pn_Store_M: /* Memory result. */
/* put it to the second one */
* @param env the lower environment
*/
static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
- ir_mode *imode, ir_mode *omode,
- lower_env_t *env)
+ ir_mode *imode, ir_mode *omode)
{
symconst_symbol sym;
ir_entity *ent;
key.omode = omode;
key.ent = NULL;
- entry = (op_mode_entry_t*)set_insert(intrinsic_fkt, &key, sizeof(key),
- HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
+ entry = set_insert(op_mode_entry_t, intrinsic_fkt, &key, sizeof(key),
+ hash_ptr(op) ^ hash_ptr(imode) ^ (hash_ptr(omode) << 8));
if (! entry->ent) {
/* create a new one */
ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
*
* Create an intrinsic Call.
*/
-static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- 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;
+static void lower_Div(ir_node *node, ir_mode *mode)
+{
+ ir_node *left = get_Div_left(node);
+ ir_node *right = get_Div_right(node);
+ 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);
+ ir_node *in[4];
+ ir_node *call;
+ ir_node *resproj;
+ if (env->params->little_endian) {
+ in[0] = get_lowered_low(left);
+ in[1] = get_lowered_high(left);
+ in[2] = get_lowered_low(right);
+ in[3] = get_lowered_high(right);
+ } else {
+ in[0] = get_lowered_high(left);
+ in[1] = get_lowered_low(left);
+ in[2] = get_lowered_high(right);
+ in[3] = get_lowered_low(right);
+ }
+ call = new_rd_Call(dbgi, block, get_Div_mem(node), addr, 4, in, mtp);
+ resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
set_irn_pinned(call, get_irn_pinned(node));
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
+ foreach_out_edge_safe(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
+
switch (get_Proj_proj(proj)) {
case pn_Div_M: /* Memory result. */
/* reroute to the call */
set_Proj_pred(proj, call);
set_Proj_proj(proj, pn_Call_M);
break;
- case pn_Div_X_except: /* Execution result if exception occurred. */
- /* reroute to the call */
+ case pn_Div_X_regular:
+ set_Proj_pred(proj, call);
+ set_Proj_proj(proj, pn_Call_X_regular);
+ break;
+ case pn_Div_X_except:
set_Proj_pred(proj, call);
set_Proj_proj(proj, pn_Call_X_except);
break;
- 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);
+ case pn_Div_res:
+ if (env->params->little_endian) {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ ir_set_dw_lowered(proj, res_low, res_high);
+ } else {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
+ ir_node *res_high = new_r_Proj(resproj, mode, 0);
+ ir_set_dw_lowered(proj, res_low, res_high);
+ }
break;
- }
default:
assert(0 && "unexpected Proj number");
}
*
* Create an intrinsic Call.
*/
-static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- 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;
+static void lower_Mod(ir_node *node, ir_mode *mode)
+{
+ ir_node *left = get_Mod_left(node);
+ ir_node *right = get_Mod_right(node);
+ 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);
+ ir_node *in[4];
+ ir_node *call;
+ ir_node *resproj;
+
+ if (env->params->little_endian) {
+ in[0] = get_lowered_low(left);
+ in[1] = get_lowered_high(left);
+ in[2] = get_lowered_low(right);
+ in[3] = get_lowered_high(right);
+ } else {
+ in[0] = get_lowered_high(left);
+ in[1] = get_lowered_low(left);
+ in[2] = get_lowered_high(right);
+ in[3] = get_lowered_low(right);
+ }
+ call = new_rd_Call(dbgi, block, get_Mod_mem(node), addr, 4, in, mtp);
+ resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
set_irn_pinned(call, get_irn_pinned(node));
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
+ foreach_out_edge_safe(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
+
switch (get_Proj_proj(proj)) {
case pn_Mod_M: /* Memory result. */
/* reroute to the call */
set_Proj_pred(proj, call);
set_Proj_proj(proj, pn_Call_M);
break;
- case pn_Mod_X_except: /* Execution result if exception occurred. */
- /* reroute to the call */
+ case pn_Div_X_regular:
+ set_Proj_pred(proj, call);
+ set_Proj_proj(proj, pn_Call_X_regular);
+ break;
+ case pn_Mod_X_except:
set_Proj_pred(proj, call);
set_Proj_proj(proj, pn_Call_X_except);
break;
- 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);
+ case pn_Mod_res:
+ if (env->params->little_endian) {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ ir_set_dw_lowered(proj, res_low, res_high);
+ } else {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
+ ir_node *res_high = new_r_Proj(resproj, mode, 0);
+ ir_set_dw_lowered(proj, res_low, res_high);
+ }
break;
- }
default:
assert(0 && "unexpected Proj number");
}
*
* Create an intrinsic Call.
*/
-static void lower_binop(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- 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);
+static void lower_binop(ir_node *node, ir_mode *mode)
+{
+ ir_node *left = get_binop_left(node);
+ ir_node *right = get_binop_right(node);
+ 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);
+ ir_node *in[4];
+ ir_node *call;
+ ir_node *resproj;
+
+ if (env->params->little_endian) {
+ in[0] = get_lowered_low(left);
+ in[1] = get_lowered_high(left);
+ in[2] = get_lowered_low(right);
+ in[3] = get_lowered_high(right);
+ } else {
+ in[0] = get_lowered_high(left);
+ in[1] = get_lowered_low(left);
+ in[2] = get_lowered_high(right);
+ in[3] = get_lowered_low(right);
+ }
+ call = new_rd_Call(dbgi, block, get_irg_no_mem(irg), addr, 4, in, mtp);
+ resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
set_irn_pinned(call, get_irn_pinned(node));
- set_lowered(env, node, res_low, res_high);
+
+ if (env->params->little_endian) {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ ir_set_dw_lowered(node, res_low, res_high);
+ } else {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
+ ir_node *res_high = new_r_Proj(resproj, mode, 0);
+ ir_set_dw_lowered(node, res_low, res_high);
+ }
+}
+
+static ir_node *create_conv(ir_node *block, ir_node *node, ir_mode *dest_mode)
+{
+ if (get_irn_mode(node) == dest_mode)
+ return node;
+ return new_r_Conv(block, node, dest_mode);
}
/**
- * Translate a Shiftop.
- *
- * Create an intrinsic Call.
+ * Moves node and all predecessors of node from from_bl to to_bl.
+ * Does not move predecessors of Phi nodes (or block nodes).
*/
-static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- ir_node *block = get_nodes_block(node);
- 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,
- /* it should be safe to conv to low_unsigned */
- new_r_Conv(block, right, env->low_unsigned)
- };
- dbg_info *dbgi = get_irn_dbg_info(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);
+static void move(ir_node *node, ir_node *from_bl, ir_node *to_bl)
+{
+ int i, arity;
+
+ /* move this node */
+ set_nodes_block(node, to_bl);
+
+ /* move its Projs */
+ if (get_irn_mode(node) == mode_T) {
+ foreach_out_edge(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
+ move(proj, from_bl, to_bl);
+ }
+ }
- set_irn_pinned(call, get_irn_pinned(node));
- set_lowered(env, node, res_low, res_high);
+ /* We must not move predecessors of Phi nodes, even if they are in
+ * from_bl. (because these are values from an earlier loop iteration
+ * which are not predecessors of node here)
+ */
+ if (is_Phi(node))
+ return;
+
+ /* recursion ... */
+ arity = get_irn_arity(node);
+ for (i = 0; i < arity; i++) {
+ ir_node *pred = get_irn_n(node, i);
+ ir_mode *pred_mode = get_irn_mode(pred);
+ if (get_nodes_block(pred) == from_bl)
+ move(pred, from_bl, to_bl);
+ if (pred_mode == env->high_signed || pred_mode == env->high_unsigned) {
+ ir_node *pred_low = get_lowered_low(pred);
+ ir_node *pred_high = get_lowered_high(pred);
+ if (get_nodes_block(pred_low) == from_bl)
+ move(pred_low, from_bl, to_bl);
+ if (pred_high != NULL && get_nodes_block(pred_high) == from_bl)
+ move(pred_high, from_bl, to_bl);
+ }
+ }
}
/**
- * Translate a Shr and handle special cases.
+ * We need a custom version of part_block_edges because during transformation
+ * not all data-dependencies are explicit yet if a lowered nodes users are not
+ * lowered yet.
+ * We can fix this by modifying move to look for such implicit dependencies.
+ * Additionally we have to keep the proj_2_block map updated
*/
-static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env)
+static ir_node *part_block_dw(ir_node *node)
{
- ir_graph *irg = get_irn_irg(node);
- ir_node *right = get_Shr_right(node);
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *old_block = get_nodes_block(node);
+ int n_cfgpreds = get_Block_n_cfgpreds(old_block);
+ ir_node **cfgpreds = get_Block_cfgpred_arr(old_block);
+ ir_node *new_block = new_r_Block(irg, n_cfgpreds, cfgpreds);
+
+ /* old_block has no predecessors anymore for now */
+ set_irn_in(old_block, 0, NULL);
+
+ /* move node and its predecessors to new_block */
+ move(node, old_block, new_block);
+
+ /* move Phi nodes to new_block */
+ foreach_out_edge_safe(old_block, edge) {
+ ir_node *phi = get_edge_src_irn(edge);
+ if (!is_Phi(phi))
+ continue;
+ set_nodes_block(phi, new_block);
+ }
+ return old_block;
+}
- if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
- ir_tarval *tv = get_Const_tarval(right);
+typedef ir_node* (*new_rd_shr_func)(dbg_info *dbgi, ir_node *block,
+ ir_node *left, ir_node *right,
+ ir_mode *mode);
- if (tarval_is_long(tv) &&
- get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
- ir_node *block = get_nodes_block(node);
- ir_node *left = get_Shr_left(node);
- ir_mode *low_unsigned = env->low_unsigned;
- long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
- const node_entry_t *left_entry = get_node_entry(env, left);
- ir_node *res_low;
- ir_node *res_high;
+static void lower_shr_helper(ir_node *node, ir_mode *mode,
+ new_rd_shr_func new_rd_shrs)
+{
+ ir_node *right = get_binop_right(node);
+ ir_node *left = get_binop_left(node);
+ ir_mode *shr_mode = get_irn_mode(node);
+ unsigned modulo_shift = get_mode_modulo_shift(shr_mode);
+ ir_mode *low_unsigned = env->low_unsigned;
+ unsigned modulo_shift2 = get_mode_modulo_shift(mode);
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *left_low = get_lowered_low(left);
+ ir_node *left_high = get_lowered_high(left);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *lower_block;
+ ir_node *block;
+ ir_node *cnst;
+ ir_node *andn;
+ ir_node *cmp;
+ ir_node *cond;
+ ir_node *proj_true;
+ ir_node *proj_false;
+ ir_node *phi_low;
+ ir_node *phi_high;
+ ir_node *lower_in[2];
+ ir_node *phi_low_in[2];
+ ir_node *phi_high_in[2];
+
+ /* this version is optimized for modulo shift architectures
+ * (and can't handle anything else) */
+ if (modulo_shift != get_mode_size_bits(shr_mode)
+ || modulo_shift2<<1 != modulo_shift) {
+ panic("Shr lowering only implemented for modulo shift shr operations");
+ }
+ if (!is_po2(modulo_shift) || !is_po2(modulo_shift2)) {
+ panic("Shr lowering only implemented for power-of-2 modes");
+ }
+ /* without 2-complement the -x instead of (bit_width-x) trick won't work */
+ if (get_mode_arithmetic(shr_mode) != irma_twos_complement) {
+ panic("Shr lowering only implemented for two-complement modes");
+ }
- left = left_entry->high_word;
+ block = get_nodes_block(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 the right operand is a 64bit value, we're only interested in the
+ * lower word */
+ if (get_irn_mode(right) == env->high_unsigned) {
+ right = get_lowered_low(right);
+ } else {
+ /* shift should never have signed mode on the right */
+ assert(get_irn_mode(right) != env->high_signed);
+ right = create_conv(block, right, low_unsigned);
+ }
- if (shf_cnt > 0) {
- ir_node *c = new_r_Const_long(irg, low_unsigned, shf_cnt);
- res_low = new_r_Shr(block, left, c, low_unsigned);
- } else {
- res_low = left;
- }
- res_high = new_r_Const(irg, get_mode_null(mode));
- set_lowered(env, node, res_low, res_high);
+ lower_block = part_block_dw(node);
+ env->flags |= CF_CHANGED;
+ block = get_nodes_block(node);
- return;
+ /* add a Cmp to test if highest bit is set <=> whether we shift more
+ * than half the word width */
+ cnst = new_r_Const_long(irg, low_unsigned, modulo_shift2);
+ andn = new_r_And(block, right, cnst, low_unsigned);
+ cnst = new_r_Const(irg, get_mode_null(low_unsigned));
+ cmp = new_rd_Cmp(dbgi, block, andn, cnst, ir_relation_equal);
+ cond = new_rd_Cond(dbgi, block, cmp);
+ proj_true = new_r_Proj(cond, mode_X, pn_Cond_true);
+ proj_false = new_r_Proj(cond, mode_X, pn_Cond_false);
+
+ /* the true block => shift_width < 1word */
+ {
+ /* In theory the low value (for 64bit shifts) is:
+ * Or(High << (32-x)), Low >> x)
+ * In practice High << 32-x will fail when x is zero (since we have
+ * modulo shift and 32 will be 0). So instead we use:
+ * Or(High<<1<<~x, Low >> x)
+ */
+ ir_node *in[1] = { proj_true };
+ ir_node *block_true = new_r_Block(irg, ARRAY_SIZE(in), in);
+ ir_node *res_high = new_rd_shrs(dbgi, block_true, left_high,
+ right, mode);
+ ir_node *shift_low = new_rd_Shr(dbgi, block_true, left_low, right,
+ low_unsigned);
+ ir_node *not_shiftval = new_rd_Not(dbgi, block_true, right,
+ low_unsigned);
+ ir_node *conv = create_conv(block_true, left_high,
+ low_unsigned);
+ ir_node *one = new_r_Const(irg, get_mode_one(low_unsigned));
+ ir_node *carry0 = new_rd_Shl(dbgi, block_true, conv, one,
+ low_unsigned);
+ ir_node *carry1 = new_rd_Shl(dbgi, block_true, carry0,
+ not_shiftval, low_unsigned);
+ ir_node *res_low = new_rd_Or(dbgi, block_true, shift_low, carry1,
+ low_unsigned);
+ lower_in[0] = new_r_Jmp(block_true);
+ phi_low_in[0] = res_low;
+ phi_high_in[0] = res_high;
+ }
+
+ /* false block => shift_width > 1word */
+ {
+ ir_node *in[1] = { proj_false };
+ ir_node *block_false = new_r_Block(irg, ARRAY_SIZE(in), in);
+ ir_node *conv = create_conv(block_false, left_high, low_unsigned);
+ ir_node *res_low = new_rd_shrs(dbgi, block_false, conv, right,
+ low_unsigned);
+ int cnsti = modulo_shift2-1;
+ ir_node *cnst2 = new_r_Const_long(irg, low_unsigned, cnsti);
+ ir_node *res_high;
+ if (new_rd_shrs == new_rd_Shrs) {
+ res_high = new_rd_shrs(dbgi, block_false, left_high, cnst2, mode);
+ } else {
+ res_high = new_r_Const(irg, get_mode_null(mode));
}
- }
- lower_Shiftop(node, mode, env);
+ lower_in[1] = new_r_Jmp(block_false);
+ phi_low_in[1] = res_low;
+ phi_high_in[1] = res_high;
+ }
+
+ /* patch lower block */
+ set_irn_in(lower_block, ARRAY_SIZE(lower_in), lower_in);
+ phi_low = new_r_Phi(lower_block, ARRAY_SIZE(phi_low_in), phi_low_in,
+ low_unsigned);
+ phi_high = new_r_Phi(lower_block, ARRAY_SIZE(phi_high_in), phi_high_in,
+ mode);
+ ir_set_dw_lowered(node, phi_low, phi_high);
}
-/**
- * Translate a Shl and handle special cases.
- */
-static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- ir_graph *irg = get_irn_irg(node);
- ir_node *right = get_Shl_right(node);
-
- if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
- ir_tarval *tv = get_Const_tarval(right);
-
- if (tarval_is_long(tv)) {
- long value = get_tarval_long(tv);
- if (value >= (long)get_mode_size_bits(mode)) {
- /* simple case: shift above the lower word */
- ir_mode *mode_l;
- ir_node *block = get_nodes_block(node);
- ir_node *left = get_Shl_left(node);
- ir_node *c;
- long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
- 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);
-
- mode_l = env->low_unsigned;
- if (shf_cnt > 0) {
- c = new_r_Const_long(irg, mode_l, shf_cnt);
- res_high = new_r_Shl(block, left, c, mode);
- } else {
- res_high = left;
- }
- res_low = new_r_Const(irg, get_mode_null(mode_l));
- set_lowered(env, node, res_low, res_high);
-
- return;
- }
- if (value == 1) {
- /* left << 1 == left + left */
- ir_node *left = get_binop_left(node);
- const node_entry_t *left_entry = get_node_entry(env, left);
- ir_node *in[4] = {
- left_entry->low_word, left_entry->high_word,
- left_entry->low_word, left_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, op_Add, 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);
-
- return;
- }
- }
- }
- lower_Shiftop(node, mode, env);
+static void lower_Shr(ir_node *node, ir_mode *mode)
+{
+ lower_shr_helper(node, mode, new_rd_Shr);
}
-/**
- * Translate a Shrs and handle special cases.
- */
-static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- ir_graph *irg = get_irn_irg(node);
- ir_node *right = get_Shrs_right(node);
-
- if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
- ir_tarval *tv = get_Const_tarval(right);
-
- if (tarval_is_long(tv) &&
- get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
- ir_node *block = get_nodes_block(node);
- 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);
- const node_entry_t *left_entry = get_node_entry(env, left);
- ir_node *left_unsigned = left;
- ir_node *res_low;
- ir_node *res_high;
- ir_node *c;
-
- left = left_entry->high_word;
-
- /* 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);
- res_low = new_r_Shrs(block, left_unsigned, c, low_unsigned);
- } else {
- res_low = left_unsigned;
- }
+static void lower_Shrs(ir_node *node, ir_mode *mode)
+{
+ lower_shr_helper(node, mode, new_rd_Shrs);
+}
- 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;
- }
+static void lower_Shl(ir_node *node, ir_mode *mode)
+{
+ ir_node *right = get_binop_right(node);
+ ir_node *left = get_binop_left(node);
+ ir_mode *shr_mode = get_irn_mode(node);
+ unsigned modulo_shift = get_mode_modulo_shift(shr_mode);
+ ir_mode *low_unsigned = env->low_unsigned;
+ unsigned modulo_shift2 = get_mode_modulo_shift(mode);
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *left_low = get_lowered_low(left);
+ ir_node *left_high = get_lowered_high(left);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *lower_block = get_nodes_block(node);
+ ir_node *block;
+ ir_node *cnst;
+ ir_node *andn;
+ ir_node *cmp;
+ ir_node *cond;
+ ir_node *proj_true;
+ ir_node *proj_false;
+ ir_node *phi_low;
+ ir_node *phi_high;
+ ir_node *lower_in[2];
+ ir_node *phi_low_in[2];
+ ir_node *phi_high_in[2];
+
+ /* this version is optimized for modulo shift architectures
+ * (and can't handle anything else) */
+ if (modulo_shift != get_mode_size_bits(shr_mode)
+ || modulo_shift2<<1 != modulo_shift) {
+ panic("Shl lowering only implemented for modulo shift shl operations");
+ }
+ if (!is_po2(modulo_shift) || !is_po2(modulo_shift2)) {
+ panic("Shl lowering only implemented for power-of-2 modes");
+ }
+ /* without 2-complement the -x instead of (bit_width-x) trick won't work */
+ if (get_mode_arithmetic(shr_mode) != irma_twos_complement) {
+ panic("Shl lowering only implemented for two-complement modes");
+ }
+
+ /* if the right operand is a 64bit value, we're only interested in the
+ * lower word */
+ if (get_irn_mode(right) == env->high_unsigned) {
+ right = get_lowered_low(right);
+ } else {
+ /* shift should never have signed mode on the right */
+ assert(get_irn_mode(right) != env->high_signed);
+ right = create_conv(lower_block, right, low_unsigned);
}
- lower_Shiftop(node, mode, env);
+
+ part_block_dw(node);
+ env->flags |= CF_CHANGED;
+ block = get_nodes_block(node);
+
+ /* add a Cmp to test if highest bit is set <=> whether we shift more
+ * than half the word width */
+ cnst = new_r_Const_long(irg, low_unsigned, modulo_shift2);
+ andn = new_r_And(block, right, cnst, low_unsigned);
+ cnst = new_r_Const(irg, get_mode_null(low_unsigned));
+ cmp = new_rd_Cmp(dbgi, block, andn, cnst, ir_relation_equal);
+ cond = new_rd_Cond(dbgi, block, cmp);
+ proj_true = new_r_Proj(cond, mode_X, pn_Cond_true);
+ proj_false = new_r_Proj(cond, mode_X, pn_Cond_false);
+
+ /* the true block => shift_width < 1word */
+ {
+ ir_node *in[1] = { proj_true };
+ ir_node *block_true = new_r_Block(irg, ARRAY_SIZE(in), in);
+
+ ir_node *res_low = new_rd_Shl(dbgi, block_true, left_low,
+ right, low_unsigned);
+ ir_node *shift_high = new_rd_Shl(dbgi, block_true, left_high, right,
+ mode);
+ ir_node *not_shiftval = new_rd_Not(dbgi, block_true, right,
+ low_unsigned);
+ ir_node *conv = create_conv(block_true, left_low, mode);
+ ir_node *one = new_r_Const(irg, get_mode_one(low_unsigned));
+ ir_node *carry0 = new_rd_Shr(dbgi, block_true, conv, one, mode);
+ ir_node *carry1 = new_rd_Shr(dbgi, block_true, carry0,
+ not_shiftval, mode);
+ ir_node *res_high = new_rd_Or(dbgi, block_true, shift_high, carry1,
+ mode);
+ lower_in[0] = new_r_Jmp(block_true);
+ phi_low_in[0] = res_low;
+ phi_high_in[0] = res_high;
+ }
+
+ /* false block => shift_width > 1word */
+ {
+ ir_node *in[1] = { proj_false };
+ ir_node *block_false = new_r_Block(irg, ARRAY_SIZE(in), in);
+ ir_node *res_low = new_r_Const(irg, get_mode_null(low_unsigned));
+ ir_node *conv = create_conv(block_false, left_low, mode);
+ ir_node *res_high = new_rd_Shl(dbgi, block_false, conv, right, mode);
+ lower_in[1] = new_r_Jmp(block_false);
+ phi_low_in[1] = res_low;
+ phi_high_in[1] = res_high;
+ }
+
+ /* patch lower block */
+ set_irn_in(lower_block, ARRAY_SIZE(lower_in), lower_in);
+ phi_low = new_r_Phi(lower_block, ARRAY_SIZE(phi_low_in), phi_low_in,
+ low_unsigned);
+ phi_high = new_r_Phi(lower_block, ARRAY_SIZE(phi_high_in), phi_high_in,
+ mode);
+ ir_set_dw_lowered(node, phi_low, phi_high);
}
/**
* Rebuild Rotl nodes into Or(Shl, Shr) and prepare all nodes.
*/
-static void prepare_links_and_handle_rotl(ir_node *node, void *env)
+static void prepare_links_and_handle_rotl(ir_node *node, void *data)
{
- lower_env_t *lenv = (lower_env_t*)env;
-
+ (void) data;
if (is_Rotl(node)) {
ir_mode *mode = get_irn_op_mode(node);
ir_node *right;
dbg_info *dbg;
optimization_state_t state;
- if (mode != lenv->high_signed && mode != lenv->high_unsigned) {
- prepare_links(lenv, node);
+ if (mode != env->high_signed && mode != env->high_unsigned) {
+ prepare_links(node);
return;
}
exchange(node, ornode);
/* 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, ornode);
+ prepare_links(shl);
+ prepare_links(c);
+ prepare_links(sub);
+ prepare_links(shr);
+ prepare_links(ornode);
return;
}
- prepare_links(lenv, node);
+ prepare_links(node);
}
/**
*
* Create an intrinsic Call.
*/
-static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env)
-{
- 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);
+static void lower_unop(ir_node *node, ir_mode *mode)
+{
+ ir_node *op = get_unop_op(node);
+ 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);
+ ir_node *nomem = get_irg_no_mem(irg);
+ ir_node *in[2];
+ ir_node *call;
+ ir_node *resproj;
+
+ if (env->params->little_endian) {
+ in[0] = get_lowered_low(op);
+ in[1] = get_lowered_high(op);
+ } else {
+ in[0] = get_lowered_high(op);
+ in[1] = get_lowered_low(op);
+ }
+ call = new_rd_Call(dbgi, block, nomem, addr, 2, in, mtp);
+ resproj = new_r_Proj(call, mode_T, pn_Call_T_result);
set_irn_pinned(call, get_irn_pinned(node));
- set_lowered(env, node, res_low, res_high);
+
+ if (env->params->little_endian) {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 0);
+ ir_node *res_high = new_r_Proj(resproj, mode, 1);
+ ir_set_dw_lowered(node, res_low, res_high);
+ } else {
+ ir_node *res_low = new_r_Proj(resproj, env->low_unsigned, 1);
+ ir_node *res_high = new_r_Proj(resproj, mode, 0);
+ ir_set_dw_lowered(node, res_low, res_high);
+ }
}
/**
*
* Create two logical binops.
*/
-static void lower_binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
+static void lower_binop_logical(ir_node *node, ir_mode *mode,
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
+ ir_node *left = get_binop_left(node);
+ ir_node *right = get_binop_right(node);
+ const lower64_entry_t *left_entry = get_node_entry(left);
+ const lower64_entry_t *right_entry = get_node_entry(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
+ 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);
+ ir_set_dw_lowered(node, res_low, res_high);
}
-static void lower_And(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_And(ir_node *node, ir_mode *mode)
{
- lower_binop_logical(node, mode, env, new_rd_And);
+ lower_binop_logical(node, mode, new_rd_And);
}
-static void lower_Or(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Or(ir_node *node, ir_mode *mode)
{
- lower_binop_logical(node, mode, env, new_rd_Or);
+ lower_binop_logical(node, mode, new_rd_Or);
}
-static void lower_Eor(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Eor(ir_node *node, ir_mode *mode)
{
- lower_binop_logical(node, mode, env, new_rd_Eor);
+ lower_binop_logical(node, mode, new_rd_Eor);
}
/**
*
* Create two logical Nots.
*/
-static void lower_Not(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Not(ir_node *node, ir_mode *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
+ ir_node *op = get_Not_op(node);
+ const lower64_entry_t *op_entry = get_node_entry(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
+ ir_node *res_high
= new_rd_Not(dbgi, block, op_entry->high_word, mode);
- set_lowered(env, node, res_low, res_high);
+ ir_set_dw_lowered(node, res_low, res_high);
+}
+
+static void lower_Proj(ir_node *node, ir_mode *op_mode)
+{
+ ir_mode *mode = get_irn_mode(node);
+ ir_node *pred;
+ (void)op_mode;
+ if (mode != env->high_signed && mode != env->high_unsigned)
+ return;
+ /* skip tuples */
+ pred = get_Proj_pred(node);
+ if (is_Tuple(pred)) {
+ long pn = get_Proj_proj(node);
+ ir_node *op = get_irn_n(pred, pn);
+ const lower64_entry_t *entry = get_node_entry(op);
+ ir_set_dw_lowered(node, entry->low_word, entry->high_word);
+ }
+}
+
+static bool is_equality_cmp(const ir_node *node)
+{
+ ir_relation relation = get_Cmp_relation(node);
+ ir_node *left = get_Cmp_left(node);
+ ir_node *right = get_Cmp_right(node);
+ ir_mode *mode = get_irn_mode(left);
+
+ /* this probably makes no sense if unordered is involved */
+ assert(!mode_is_float(mode));
+
+ if (relation == ir_relation_equal || relation == ir_relation_less_greater)
+ return true;
+
+ if (!is_Const(right) || !is_Const_null(right))
+ return false;
+ if (mode_is_signed(mode)) {
+ return relation == ir_relation_less_greater;
+ } else {
+ return relation == ir_relation_greater;
+ }
+}
+
+static ir_node *get_cfop_destination(const ir_node *cfop)
+{
+ const ir_edge_t *first = get_irn_out_edge_first(cfop);
+ /* we should only have 1 destination */
+ assert(get_irn_n_edges(cfop) == 1);
+ return get_edge_src_irn(first);
+}
+
+static void lower_Switch(ir_node *node, ir_mode *high_mode)
+{
+ ir_node *selector = get_Switch_selector(node);
+ ir_mode *mode = get_irn_mode(selector);
+ (void)high_mode;
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ /* we can't really handle Switch with 64bit offsets */
+ panic("Switch with 64bit jumptable not supported");
+ }
+ lower_node(selector);
}
/**
* Translate a Cond.
*/
-static void lower_Cond(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Cond(ir_node *node, ir_mode *high_mode)
{
ir_node *left, *right, *block;
ir_node *sel = get_Cond_selector(node);
- ir_mode *m = get_irn_mode(sel);
ir_mode *cmp_mode;
- const node_entry_t *lentry, *rentry;
- ir_node *proj, *projT = NULL, *projF = NULL;
+ const lower64_entry_t *lentry, *rentry;
+ ir_node *projT = NULL, *projF = NULL;
ir_node *new_bl, *irn;
ir_node *projHF, *projHT;
ir_node *dst_blk;
ir_graph *irg;
dbg_info *dbg;
- (void) mode;
+ (void) high_mode;
- 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");
- }
+ if (!is_Cmp(sel)) {
+ lower_node(sel);
return;
}
- if (!is_Cmp(sel))
- return;
-
left = get_Cmp_left(sel);
cmp_mode = get_irn_mode(left);
- if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned)
+ if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned) {
+ lower_node(sel);
return;
+ }
right = get_Cmp_right(sel);
- lentry = get_node_entry(env, left);
- rentry = get_node_entry(env, right);
+ lower_node(left);
+ lower_node(right);
+ lentry = get_node_entry(left);
+ rentry = get_node_entry(right);
/* all right, build the code */
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
- long proj_nr = get_Proj_proj(proj);
+ foreach_out_edge_safe(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ long proj_nr;
+ if (!is_Proj(proj))
+ continue;
+ proj_nr = get_Proj_proj(proj);
if (proj_nr == pn_Cond_true) {
assert(projT == NULL && "more than one Proj(true)");
dbg = get_irn_dbg_info(sel);
relation = get_Cmp_relation(sel);
- if (is_Const(right) && is_Const_null(right)) {
- if (relation == ir_relation_equal || relation == ir_relation_less_greater) {
- /* 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 *ornode = new_rd_Or(dbg, block, low, high, mode);
- ir_node *cmp = new_rd_Cmp(dbg, block, ornode, new_r_Const_long(irg, mode, 0), relation);
- set_Cond_selector(node, cmp);
- return;
- }
+ if (is_equality_cmp(sel)) {
+ /* x ==/!= y ==> or(x_low^y_low,x_high^y_high) ==/!= 0 */
+ ir_mode *mode = env->low_unsigned;
+ ir_node *low_left = new_rd_Conv(dbg, block, lentry->low_word, mode);
+ ir_node *high_left = new_rd_Conv(dbg, block, lentry->high_word, mode);
+ ir_node *low_right = new_rd_Conv(dbg, block, rentry->low_word, mode);
+ ir_node *high_right = new_rd_Conv(dbg, block, rentry->high_word, mode);
+ ir_node *xor_low = new_rd_Eor(dbg, block, low_left, low_right, mode);
+ ir_node *xor_high = new_rd_Eor(dbg, block, high_left, high_right, mode);
+ ir_node *ornode = new_rd_Or(dbg, block, xor_low, xor_high, mode);
+ ir_node *cmp = new_rd_Cmp(dbg, block, ornode, new_r_Const(irg, get_mode_null(mode)), relation);
+ set_Cond_selector(node, cmp);
+ return;
}
if (relation == ir_relation_equal) {
+ ir_node *proj;
/* simple case:a == b <==> a_h == b_h && a_l == b_l */
- pmap_entry *entry = pmap_find(env->proj_2_block, projF);
-
- assert(entry);
- dst_blk = (ir_node*)entry->value;
+ dst_blk = get_cfop_destination(projF);
irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
ir_relation_equal);
mark_irn_visited(proj);
exchange(projT, proj);
} else if (relation == ir_relation_less_greater) {
+ ir_node *proj;
/* simple case:a != b <==> a_h != b_h || a_l != b_l */
- pmap_entry *entry = pmap_find(env->proj_2_block, projT);
-
- assert(entry);
- dst_blk = (ir_node*)entry->value;
+ dst_blk = get_cfop_destination(projT);
irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
ir_relation_less_greater);
mark_irn_visited(proj);
exchange(projF, proj);
} else {
+ ir_node *proj;
/* 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;
+ ir_node *projEqF;
- entry = pmap_find(env->proj_2_block, projT);
- assert(entry);
- dstT = (ir_node*)entry->value;
-
- entry = pmap_find(env->proj_2_block, projF);
- assert(entry);
- dstF = (ir_node*)entry->value;
+ dstT = get_cfop_destination(projT);
+ dstF = get_cfop_destination(projF);
irn = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
relation & ~ir_relation_equal);
projHT = new_r_Proj(irn, mode_X, pn_Cond_true);
mark_irn_visited(projHT);
- exchange(projT, projHT);
- projT = projHT;
projHF = new_r_Proj(irn, mode_X, pn_Cond_false);
mark_irn_visited(projHF);
ir_relation_equal);
irn = new_rd_Cond(dbg, newbl_eq, irn);
- proj = new_r_Proj(irn, mode_X, pn_Cond_false);
- mark_irn_visited(proj);
- exchange(projF, proj);
- projF = proj;
+ projEqF = new_r_Proj(irn, mode_X, pn_Cond_false);
+ mark_irn_visited(projEqF);
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);
add_block_cf_input(dstF, projF, proj);
+
+ exchange(projT, projHT);
+ exchange(projF, projEqF);
}
/* we have changed the control flow */
/**
* Translate a Conv to higher_signed
*/
-static void lower_Conv_to_Ll(ir_node *node, lower_env_t *env)
+static void lower_Conv_to_Ll(ir_node *node)
{
ir_mode *omode = get_irn_mode(node);
ir_node *op = get_Conv_op(node);
if (mode_is_int(imode) || mode_is_reference(imode)) {
if (imode == env->high_signed || imode == env->high_unsigned) {
/* a Conv from Lu to Ls or Ls to Lu */
- const node_entry_t *op_entry = get_node_entry(env, op);
+ const lower64_entry_t *op_entry = get_node_entry(op);
res_low = op_entry->low_word;
res_high = new_rd_Conv(dbg, block, op_entry->high_word, low_signed);
} else {
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);
+ ir_type *mtp = get_conv_type(imode, omode);
- irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode, env);
+ irn = get_intrinsic_address(mtp, get_irn_op(node), imode, omode);
call = new_rd_Call(dbg, block, get_irg_no_mem(irg), irn, 1, &op, mtp);
set_irn_pinned(call, get_irn_pinned(node));
irn = new_r_Proj(call, mode_T, pn_Call_T_result);
- res_low = new_r_Proj(irn, low_unsigned, 0);
- res_high = new_r_Proj(irn, low_signed, 1);
+ if (env->params->little_endian) {
+ res_low = new_r_Proj(irn, low_unsigned, 0);
+ res_high = new_r_Proj(irn, low_signed, 1);
+ } else {
+ res_low = new_r_Proj(irn, low_unsigned, 1);
+ res_high = new_r_Proj(irn, low_signed, 0);
+ }
}
- set_lowered(env, node, res_low, res_high);
+ ir_set_dw_lowered(node, res_low, res_high);
}
/**
* Translate a Conv from higher_unsigned
*/
-static void lower_Conv_from_Ll(ir_node *node, lower_env_t *env)
+static void lower_Conv_from_Ll(ir_node *node)
{
- 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);
+ 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 lower64_entry_t *entry = get_node_entry(op);
if (mode_is_int(omode) || mode_is_reference(omode)) {
op = entry->low_word;
} else {
ir_node *irn, *call, *in[2];
ir_mode *imode = get_irn_mode(op);
- ir_type *mtp = get_conv_type(imode, omode, env);
+ ir_type *mtp = get_conv_type(imode, omode);
+ ir_node *res;
- 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);
+ if (env->params->little_endian) {
+ in[0] = entry->low_word;
+ in[1] = entry->high_word;
+ } else {
+ in[0] = entry->high_word;
+ in[1] = entry->low_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);
+ res = new_r_Proj(irn, omode, 0);
- exchange(node, new_r_Proj(irn, omode, 0));
+ exchange(node, res);
}
}
/**
* lower Cmp
*/
-static void lower_Cmp(ir_node *cmp, ir_mode *m, lower_env_t *env)
+static void lower_Cmp(ir_node *cmp, ir_mode *m)
{
- ir_node *l = get_Cmp_left(cmp);
- ir_mode *mode = get_irn_mode(l);
+ ir_node *l = get_Cmp_left(cmp);
+ ir_mode *cmp_mode = get_irn_mode(l);
ir_node *r, *low, *high, *t, *res;
ir_relation relation;
- ir_node *blk;
- dbg_info *db;
- const node_entry_t *lentry;
- const node_entry_t *rentry;
+ ir_node *block;
+ dbg_info *dbg;
+ const lower64_entry_t *lentry;
+ const lower64_entry_t *rentry;
(void) m;
- if (mode != env->high_signed && mode != env->high_unsigned) {
+ if (cmp_mode != env->high_signed && cmp_mode != env->high_unsigned)
return;
- }
r = get_Cmp_right(cmp);
- lentry = get_node_entry(env, l);
- rentry = get_node_entry(env, r);
+ lentry = get_node_entry(l);
+ rentry = get_node_entry(r);
relation = get_Cmp_relation(cmp);
- blk = get_nodes_block(cmp);
- db = get_irn_dbg_info(cmp);
+ block = get_nodes_block(cmp);
+ dbg = get_irn_dbg_info(cmp);
+
+ /* easy case for x ==/!= 0 (see lower_Cond for details) */
+ if (is_equality_cmp(cmp)) {
+ ir_graph *irg = get_irn_irg(cmp);
+ ir_mode *mode = env->low_unsigned;
+ ir_node *low_left = new_rd_Conv(dbg, block, lentry->low_word, mode);
+ ir_node *high_left = new_rd_Conv(dbg, block, lentry->high_word, mode);
+ ir_node *low_right = new_rd_Conv(dbg, block, rentry->low_word, mode);
+ ir_node *high_right = new_rd_Conv(dbg, block, rentry->high_word, mode);
+ ir_node *xor_low = new_rd_Eor(dbg, block, low_left, low_right, mode);
+ ir_node *xor_high = new_rd_Eor(dbg, block, high_left, high_right, mode);
+ ir_node *ornode = new_rd_Or(dbg, block, xor_low, xor_high, mode);
+ ir_node *new_cmp = new_rd_Cmp(dbg, block, ornode, new_r_Const(irg, get_mode_null(mode)), relation);
+ exchange(cmp, new_cmp);
+ return;
+ }
if (relation == ir_relation_equal) {
/* simple case:a == b <==> a_h == b_h && a_l == b_l */
- low = new_rd_Cmp(db, blk, lentry->low_word, rentry->low_word,
+ low = new_rd_Cmp(dbg, block, lentry->low_word, rentry->low_word,
relation);
- high = new_rd_Cmp(db, blk, lentry->high_word, rentry->high_word,
+ high = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
relation);
- res = new_rd_And(db, blk, low, high, mode_b);
+ res = new_rd_And(dbg, block, low, high, mode_b);
} else if (relation == ir_relation_less_greater) {
/* simple case:a != b <==> a_h != b_h || a_l != b_l */
- low = new_rd_Cmp(db, blk, lentry->low_word, rentry->low_word,
+ low = new_rd_Cmp(dbg, block, lentry->low_word, rentry->low_word,
relation);
- high = new_rd_Cmp(db, blk, lentry->high_word, rentry->high_word,
+ high = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
relation);
- res = new_rd_Or(db, blk, low, high, mode_b);
+ res = new_rd_Or(dbg, block, low, high, mode_b);
} else {
- low = new_rd_Cmp(db, blk, lentry->low_word, rentry->low_word,
+ /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
+ ir_node *high1 = new_rd_Cmp(dbg, block, lentry->high_word,
+ rentry->high_word, relation & ~ir_relation_equal);
+ low = new_rd_Cmp(dbg, block, lentry->low_word, rentry->low_word,
relation);
- high = new_rd_Cmp(db, blk, lentry->high_word, rentry->high_word,
+ high = new_rd_Cmp(dbg, block, lentry->high_word, rentry->high_word,
ir_relation_equal);
-
- /* a rel b <==> a_h REL b_h || (a_h == b_h && a_l rel b_l) */
- ir_node *high1 = new_rd_Cmp(db, blk, lentry->high_word,
- rentry->high_word, relation & ~ir_relation_equal);
- t = new_rd_And(db, blk, low, high, mode_b);
- res = new_rd_Or(db, blk, high1, t, mode_b);
+ t = new_rd_And(dbg, block, low, high, mode_b);
+ res = new_rd_Or(dbg, block, high1, t, mode_b);
}
exchange(cmp, res);
}
/**
* Translate a Conv.
*/
-static void lower_Conv(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Conv(ir_node *node, ir_mode *mode)
{
mode = get_irn_mode(node);
if (mode == env->high_signed || mode == env->high_unsigned) {
- lower_Conv_to_Ll(node, env);
+ lower_Conv_to_Ll(node);
} else {
ir_mode *op_mode = get_irn_mode(get_Conv_op(node));
- if (op_mode == env->high_signed || op_mode == env->high_unsigned) {
- lower_Conv_from_Ll(node, env);
+ if (op_mode == env->high_signed || op_mode == env->high_unsigned) {
+ lower_Conv_from_Ll(node);
}
}
}
-/**
- * Remember the new argument index of this value type entity in the lowered
- * method type.
- *
- * @param ent the entity
- * @param pos the argument index of this entity
- */
-static inline void set_entity_arg_idx(ir_entity *ent, int pos)
+static void fix_parameter_entities(ir_graph *irg, ir_type *orig_mtp)
{
- set_entity_link(ent, INT_TO_PTR(pos));
-}
+ size_t orig_n_params = get_method_n_params(orig_mtp);
+ ir_entity **parameter_entities;
-/**
- * Retrieve the argument index of a value type entity.
- *
- * @param ent the entity
- */
-static int get_entity_arg_idx(const ir_entity *ent) {
- return (int)PTR_TO_INT(get_entity_link(ent));
+ parameter_entities = ALLOCANZ(ir_entity*, orig_n_params);
+
+ ir_type *frame_type = get_irg_frame_type(irg);
+ size_t n = get_compound_n_members(frame_type);
+ size_t i;
+ size_t n_param;
+
+ /* collect parameter entities */
+ for (i = 0; i < n; ++i) {
+ ir_entity *entity = get_compound_member(frame_type, i);
+ size_t p;
+ if (!is_parameter_entity(entity))
+ continue;
+ p = get_entity_parameter_number(entity);
+ if (p == IR_VA_START_PARAMETER_NUMBER)
+ continue;
+ assert(p < orig_n_params);
+ assert(parameter_entities[p] == NULL);
+ parameter_entities[p] = entity;
+ }
+
+ /* adjust indices */
+ n_param = 0;
+ for (i = 0; i < orig_n_params; ++i, ++n_param) {
+ ir_entity *entity = parameter_entities[i];
+ ir_type *tp;
+
+ if (entity != NULL)
+ set_entity_parameter_number(entity, n_param);
+
+ tp = get_method_param_type(orig_mtp, i);
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ ++n_param;
+ /* note that we do not change the type of the parameter
+ * entities, as calling convention fixup later still needs to
+ * know which is/was a lowered doubleword.
+ * So we just mark/remember it for later */
+ if (entity != NULL) {
+ assert(entity->attr.parameter.doubleword_low_mode == NULL);
+ entity->attr.parameter.doubleword_low_mode
+ = env->low_unsigned;
+ }
+ }
+ }
+ }
}
/**
*
* @return the lowered type
*/
-static ir_type *lower_mtp(lower_env_t *env, ir_type *mtp)
+static ir_type *lower_mtp(ir_type *mtp)
{
- pmap_entry *entry;
- ident *lid;
- ir_type *res, *value_type;
-
- if (is_lowered_type(mtp))
+ ir_type *res;
+ size_t i;
+ size_t orig_n_params;
+ size_t orig_n_res;
+ size_t n_param;
+ size_t n_res;
+ bool must_be_lowered;
+
+ res = pmap_get(ir_type, lowered_type, mtp);
+ if (res != NULL)
+ return res;
+ if (type_visited(mtp))
return mtp;
+ mark_type_visited(mtp);
- entry = pmap_find(lowered_type, mtp);
- if (! entry) {
- int i, orig_n_params, orig_n_res, n_param, n_res;
+ orig_n_params = get_method_n_params(mtp);
+ orig_n_res = get_method_n_ress(mtp);
+ n_param = orig_n_params;
+ n_res = orig_n_res;
+ must_be_lowered = false;
- /* count new number of params */
- n_param = orig_n_params = get_method_n_params(mtp);
- for (i = orig_n_params - 1; i >= 0; --i) {
- ir_type *tp = get_method_param_type(mtp, i);
+ /* count new number of params */
+ for (i = orig_n_params; i > 0;) {
+ ir_type *tp = get_method_param_type(mtp, --i);
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
- if (mode == env->high_signed ||
- mode == env->high_unsigned)
- ++n_param;
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ ++n_param;
+ must_be_lowered = true;
}
}
+ }
- /* count new number of results */
- n_res = orig_n_res = get_method_n_ress(mtp);
- for (i = orig_n_res - 1; i >= 0; --i) {
- ir_type *tp = get_method_res_type(mtp, i);
+ /* count new number of results */
+ for (i = orig_n_res; i > 0;) {
+ ir_type *tp = get_method_res_type(mtp, --i);
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
- if (mode == env->high_signed ||
- mode == env->high_unsigned)
- ++n_res;
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ ++n_res;
+ must_be_lowered = true;
}
}
+ }
+ if (!must_be_lowered) {
+ set_type_link(mtp, NULL);
+ return mtp;
+ }
- res = new_type_method(n_param, n_res);
+ res = new_d_type_method(n_param, n_res, get_type_dbg_info(mtp));
- /* set param types and result types */
- for (i = n_param = 0; i < orig_n_params; ++i) {
- ir_type *tp = get_method_param_type(mtp, i);
+ /* set param types and result types */
+ for (i = n_param = 0; i < orig_n_params; ++i) {
+ ir_type *tp = get_method_param_type(mtp, i);
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
- if (mode == env->high_signed) {
+ if (mode == env->high_signed) {
+ if (env->params->little_endian) {
set_method_param_type(res, n_param++, tp_u);
set_method_param_type(res, n_param++, tp_s);
- } else if (mode == env->high_unsigned) {
- set_method_param_type(res, n_param++, tp_u);
- set_method_param_type(res, n_param++, tp_u);
} else {
- set_method_param_type(res, n_param++, tp);
+ set_method_param_type(res, n_param++, tp_s);
+ set_method_param_type(res, n_param++, tp_u);
}
+ } else if (mode == env->high_unsigned) {
+ set_method_param_type(res, n_param++, tp_u);
+ set_method_param_type(res, n_param++, tp_u);
} else {
- set_method_param_type(res, n_param++, tp);
+ set_method_param_type(res, n_param, tp);
+ ++n_param;
}
+ } else {
+ set_method_param_type(res, n_param, tp);
+ ++n_param;
}
- for (i = n_res = 0; i < orig_n_res; ++i) {
- ir_type *tp = get_method_res_type(mtp, i);
+ }
+ for (i = n_res = 0; i < orig_n_res; ++i) {
+ ir_type *tp = get_method_res_type(mtp, i);
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
- if (mode == env->high_signed) {
+ if (mode == env->high_signed) {
+ if (env->params->little_endian) {
set_method_res_type(res, n_res++, tp_u);
set_method_res_type(res, n_res++, tp_s);
- } else if (mode == env->high_unsigned) {
- set_method_res_type(res, n_res++, tp_u);
- set_method_res_type(res, n_res++, tp_u);
} else {
- set_method_res_type(res, n_res++, tp);
+ set_method_res_type(res, n_res++, tp_s);
+ set_method_res_type(res, n_res++, tp_u);
}
+ } else if (mode == env->high_unsigned) {
+ set_method_res_type(res, n_res++, tp_u);
+ set_method_res_type(res, n_res++, tp_u);
} else {
set_method_res_type(res, n_res++, tp);
}
+ } else {
+ set_method_res_type(res, n_res++, tp);
}
- set_lowered_type(mtp, res);
- pmap_insert(lowered_type, mtp, res);
-
- value_type = get_method_value_param_type(mtp);
- if (value_type != NULL) {
- /* this creates a new value parameter type */
- (void)get_method_value_param_ent(res, 0);
-
- /* set new param positions for all entities of the value type */
- for (i = n_param = 0; i < orig_n_params; ++i) {
- ir_type *tp = get_method_param_type(mtp, i);
- ident *id = get_method_param_ident(mtp, i);
- ir_entity *ent = get_method_value_param_ent(mtp, i);
-
- set_entity_arg_idx(ent, n_param);
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
-
- if (mode == env->high_signed || mode == env->high_unsigned) {
- if (id != NULL) {
- lid = id_mangle(id, env->first_id);
- set_method_param_ident(res, n_param, lid);
- set_entity_ident(get_method_value_param_ent(res, n_param), lid);
- lid = id_mangle(id, env->next_id);
- set_method_param_ident(res, n_param + 1, lid);
- set_entity_ident(get_method_value_param_ent(res, n_param + 1), lid);
- }
- n_param += 2;
- continue;
- }
- }
- if (id != NULL) {
- set_method_param_ident(res, n_param, id);
- set_entity_ident(get_method_value_param_ent(res, n_param), id);
- }
- ++n_param;
- }
-
- set_lowered_type(value_type, get_method_value_param_type(res));
- }
- } else {
- res = (ir_type*)entry->value;
}
+
+ set_method_variadicity(res, get_method_variadicity(mtp));
+ set_method_calling_convention(res, get_method_calling_convention(mtp));
+ set_method_additional_properties(res, get_method_additional_properties(mtp));
+
+ set_higher_type(res, mtp);
+ set_type_link(res, mtp);
+
+ mark_type_visited(res);
+ pmap_insert(lowered_type, mtp, res);
return res;
}
/**
* Translate a Return.
*/
-static void lower_Return(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Return(ir_node *node, ir_mode *mode)
{
- ir_graph *irg = get_irn_irg(node);
- ir_entity *ent = get_irg_entity(irg);
- ir_type *mtp = get_entity_type(ent);
ir_node **in;
- int i, j, n;
+ size_t i, j, n;
int need_conv = 0;
(void) mode;
/* check if this return must be lowered */
for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
- ir_node *pred = get_Return_res(node, i);
- ir_mode *mode = get_irn_op_mode(pred);
+ ir_node *pred = get_Return_res(node, i);
+ ir_mode *rmode = get_irn_op_mode(pred);
- if (mode == env->high_signed || mode == env->high_unsigned)
+ if (rmode == env->high_signed || rmode == env->high_unsigned)
need_conv = 1;
}
if (! need_conv)
return;
- ent = get_irg_entity(irg);
- mtp = get_entity_type(ent);
-
- mtp = lower_mtp(env, mtp);
- set_entity_type(ent, mtp);
+ ir_graph *irg = get_irn_irg(node);
+ ir_entity *ent = get_irg_entity(irg);
+ ir_type *mtp = get_entity_type(ent);
/* create a new in array */
NEW_ARR_A(ir_node *, in, get_method_n_ress(mtp) + 1);
- in[0] = get_Return_mem(node);
+ j = 0;
+ in[j++] = get_Return_mem(node);
- for (j = i = 0, n = get_Return_n_ress(node); i < n; ++i) {
+ for (i = 0, n = get_Return_n_ress(node); i < n; ++i) {
ir_node *pred = get_Return_res(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 *entry = get_node_entry(env, pred);
- in[++j] = entry->low_word;
- in[++j] = entry->high_word;
+ const lower64_entry_t *entry = get_node_entry(pred);
+ if (env->params->little_endian) {
+ in[j++] = entry->low_word;
+ in[j++] = entry->high_word;
+ } else {
+ in[j++] = entry->high_word;
+ in[j++] = entry->low_word;
+ }
} else {
- in[++j] = pred;
+ in[j++] = pred;
}
}
+ assert(j == get_method_n_ress(mtp)+1);
- set_irn_in(node, j+1, in);
+ set_irn_in(node, j, in);
}
/**
* Translate the parameters.
*/
-static void lower_Start(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Start(ir_node *node, ir_mode *high_mode)
{
- ir_graph *irg = get_irn_irg(node);
- ir_entity *ent = get_irg_entity(irg);
- ir_type *tp = get_entity_type(ent);
- ir_type *mtp;
+ ir_graph *irg = get_irn_irg(node);
+ ir_entity *ent = get_irg_entity(irg);
+ ir_type *mtp = get_entity_type(ent);
+ ir_type *orig_mtp = (ir_type*)get_type_link(mtp);
+ ir_node *args;
long *new_projs;
- int i, j, n_params, rem;
- ir_node *proj, *args;
- (void) mode;
-
- if (is_lowered_type(tp)) {
- mtp = get_associated_type(tp);
- } else {
- mtp = tp;
- }
- assert(! is_lowered_type(mtp));
+ size_t i, j, n_params;
+ (void) high_mode;
- n_params = get_method_n_params(mtp);
- if (n_params <= 0)
+ /* if type link is NULL then the type was not lowered, hence no changes
+ * at Start necessary */
+ if (orig_mtp == NULL)
return;
+ n_params = get_method_n_params(orig_mtp);
+
NEW_ARR_A(long, new_projs, n_params);
- /* first check if we have parameters that must be fixed */
+ /* Calculate mapping of proj numbers in new_projs */
for (i = j = 0; i < n_params; ++i, ++j) {
- ir_type *tp = get_method_param_type(mtp, i);
+ ir_type *ptp = get_method_param_type(orig_mtp, i);
new_projs[i] = j;
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
-
- if (mode == env->high_signed ||
- mode == env->high_unsigned)
+ if (is_Primitive_type(ptp)) {
+ ir_mode *amode = get_type_mode(ptp);
+ if (amode == env->high_signed || amode == env->high_unsigned)
++j;
}
}
- if (i == j)
+
+ /* find args Proj */
+ args = NULL;
+ foreach_out_edge(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
+ if (get_Proj_proj(proj) == pn_Start_T_args) {
+ args = proj;
+ break;
+ }
+ }
+ if (args == NULL)
return;
- mtp = lower_mtp(env, mtp);
- set_entity_type(ent, mtp);
-
- /* switch off optimization for new Proj nodes or they might be CSE'ed
- with not patched one's */
- rem = get_optimize();
- set_optimize(0);
-
- /* ok, fix all Proj's and create new ones */
- args = get_irg_args(irg);
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
- ir_node *pred = get_Proj_pred(proj);
- long proj_nr;
- ir_mode *mode;
- ir_mode *mode_l;
+ /* fix all Proj's and create new ones */
+ foreach_out_edge_safe(args, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ ir_mode *mode = get_irn_mode(proj);
+ ir_mode *mode_l = env->low_unsigned;
+ ir_node *pred;
+ long proj_nr;
ir_mode *mode_h;
ir_node *res_low;
ir_node *res_high;
+ int old_cse;
dbg_info *dbg;
- /* do not visit this node again */
- mark_irn_visited(proj);
-
- if (pred != args)
+ if (!is_Proj(proj))
continue;
-
+ pred = get_Proj_pred(proj);
proj_nr = get_Proj_proj(proj);
- set_Proj_proj(proj, new_projs[proj_nr]);
- 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 {
+ long new_pn = new_projs[proj_nr];
+ set_Proj_proj(proj, new_pn);
continue;
}
+ /* Switch off CSE or we might get an already existing Proj. */
+ old_cse = get_opt_cse();
+ set_opt_cse(0);
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);
+ if (env->params->little_endian) {
+ res_low = new_rd_Proj(dbg, pred, mode_l, new_projs[proj_nr]);
+ res_high = new_rd_Proj(dbg, pred, mode_h, new_projs[proj_nr] + 1);
+ } else {
+ res_high = new_rd_Proj(dbg, pred, mode_h, new_projs[proj_nr]);
+ res_low = new_rd_Proj(dbg, pred, mode_l, new_projs[proj_nr] + 1);
+ }
+ set_opt_cse(old_cse);
+ ir_set_dw_lowered(proj, res_low, res_high);
}
- set_optimize(rem);
}
/**
* Translate a Call.
*/
-static void lower_Call(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Call(ir_node *node, ir_mode *mode)
{
ir_type *tp = get_Call_type(node);
- ir_type *call_tp;
- ir_node **in, *proj, *results;
- int n_params, n_res;
+ ir_node **in;
+ size_t n_params, n_res;
bool need_lower = false;
- int i, j;
+ size_t i, j;
+ size_t p;
long *res_numbers = NULL;
+ ir_node *resproj;
(void) mode;
- if (is_lowered_type(tp)) {
- call_tp = get_associated_type(tp);
- } else {
- call_tp = tp;
- }
-
- assert(! is_lowered_type(call_tp));
-
- n_params = get_method_n_params(call_tp);
- for (i = 0; i < n_params; ++i) {
- ir_type *tp = get_method_param_type(call_tp, i);
-
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
+ n_params = get_method_n_params(tp);
+ for (p = 0; p < n_params; ++p) {
+ ir_type *ptp = get_method_param_type(tp, p);
- if (mode == env->high_signed || mode == env->high_unsigned) {
+ if (is_Primitive_type(ptp)) {
+ ir_mode *pmode = get_type_mode(ptp);
+ if (pmode == env->high_signed || pmode == env->high_unsigned) {
need_lower = true;
break;
}
}
}
- n_res = get_method_n_ress(call_tp);
+ n_res = get_method_n_ress(tp);
if (n_res > 0) {
NEW_ARR_A(long, res_numbers, n_res);
for (i = j = 0; i < n_res; ++i, ++j) {
- ir_type *tp = get_method_res_type(call_tp, i);
+ ir_type *ptp = get_method_res_type(tp, i);
res_numbers[i] = j;
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
-
- if (mode == env->high_signed || mode == env->high_unsigned) {
+ if (is_Primitive_type(ptp)) {
+ ir_mode *rmode = get_type_mode(ptp);
+ if (rmode == env->high_signed || rmode == env->high_unsigned) {
need_lower = true;
++j;
}
return;
/* let's lower it */
- call_tp = lower_mtp(env, call_tp);
- set_Call_type(node, call_tp);
+ tp = lower_mtp(tp);
+ set_Call_type(node, tp);
- NEW_ARR_A(ir_node *, in, get_method_n_params(call_tp) + 2);
+ NEW_ARR_A(ir_node *, in, get_method_n_params(tp) + 2);
in[0] = get_Call_mem(node);
in[1] = get_Call_ptr(node);
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;
+ const lower64_entry_t *pred_entry = get_node_entry(pred);
+ if (env->params->little_endian) {
+ in[j++] = pred_entry->low_word;
+ in[j++] = pred_entry->high_word;
+ } else {
+ in[j++] = pred_entry->high_word;
+ in[j++] = pred_entry->low_word;
+ }
} else {
in[j++] = pred;
}
set_irn_in(node, j, in);
- /* fix the results */
- results = NULL;
- for (proj = (ir_node*)get_irn_link(node); proj;
- proj = (ir_node*)get_irn_link(proj)) {
- long proj_nr = get_Proj_proj(proj);
-
- if (proj_nr == pn_Call_T_result && get_Proj_pred(proj) == node) {
- /* found the result proj */
- results = proj;
+ /* find results T */
+ resproj = NULL;
+ foreach_out_edge(node, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
+ if (get_Proj_proj(proj) == pn_Call_T_result) {
+ resproj = proj;
break;
}
}
+ if (resproj == NULL)
+ return;
- if (results != NULL) { /* there are results */
- int rem = get_optimize();
-
- /* switch off optimization for new Proj nodes or they might be CSE'ed
- with not patched one's */
- set_optimize(0);
- for (i = j = 0, proj = (ir_node*)get_irn_link(results); proj;
- proj = (ir_node*)get_irn_link(proj), ++i, ++j) {
- if (get_Proj_pred(proj) == results) {
- 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]);
-
- 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;
- }
+ /* fix the results */
+ foreach_out_edge_safe(resproj, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ ir_mode *proj_mode = get_irn_mode(proj);
+ ir_mode *mode_l = env->low_unsigned;
+ ir_node *pred;
+ long proj_nr;
+ ir_mode *mode_h;
+ ir_node *res_low;
+ ir_node *res_high;
+ dbg_info *dbg;
- 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);
- }
+ if (!is_Proj(proj))
+ continue;
+ pred = get_Proj_pred(proj);
+ proj_nr = get_Proj_proj(proj);
+
+ if (proj_mode == env->high_signed) {
+ mode_h = env->low_signed;
+ } else if (proj_mode == env->high_unsigned) {
+ mode_h = env->low_unsigned;
+ } else {
+ long new_nr = res_numbers[proj_nr];
+ set_Proj_proj(proj, new_nr);
+ continue;
+ }
+
+ dbg = get_irn_dbg_info(proj);
+ if (env->params->little_endian) {
+ res_low = new_rd_Proj(dbg, pred, mode_l, res_numbers[proj_nr]);
+ res_high = new_rd_Proj(dbg, pred, mode_h, res_numbers[proj_nr] + 1);
+ } else {
+ res_high = new_rd_Proj(dbg, pred, mode_h, res_numbers[proj_nr]);
+ res_low = new_rd_Proj(dbg, pred, mode_l, res_numbers[proj_nr] + 1);
}
- set_optimize(rem);
+ ir_set_dw_lowered(proj, res_low, res_high);
}
}
/**
* Translate an Unknown into two.
*/
-static void lower_Unknown(ir_node *node, ir_mode *mode, lower_env_t *env)
+static void lower_Unknown(ir_node *node, ir_mode *mode)
{
ir_mode *low_mode = env->low_unsigned;
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);
+ ir_set_dw_lowered(node, res_low, res_high);
+}
+
+/**
+ * Translate a Bad into two.
+ */
+static void lower_Bad(ir_node *node, ir_mode *mode)
+{
+ ir_mode *low_mode = env->low_unsigned;
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *res_low = new_r_Bad(irg, low_mode);
+ ir_node *res_high = new_r_Bad(irg, mode);
+ ir_set_dw_lowered(node, res_low, res_high);
}
/**
*
* First step: just create two templates
*/
-static void lower_Phi(lower_env_t *env, ir_node *phi)
+static void lower_Phi(ir_node *phi)
{
ir_mode *mode = get_irn_mode(phi);
int i;
phi_l = new_rd_Phi(dbg, block, arity, in_l, mode_l);
phi_h = new_rd_Phi(dbg, block, arity, in_h, mode_h);
- set_lowered(env, phi, phi_l, phi_h);
+ ir_set_dw_lowered(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. */
- if (is_Phi(phi_l))
- 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)
+static void fixup_phi(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;
+ const lower64_entry_t *entry = get_node_entry(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);
+ ir_node *pred = get_Phi_pred(phi, i);
+ const lower64_entry_t *pred_entry = get_node_entry(pred);
set_Phi_pred(phi_l, i, pred_entry->low_word);
set_Phi_pred(phi_h, i, pred_entry->high_word);
/**
* Translate a Mux.
*/
-static void lower_Mux(ir_node *mux, ir_mode *mode, lower_env_t *env)
-{
- 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
+static void lower_Mux(ir_node *mux, ir_mode *mode)
+{
+ ir_node *truen = get_Mux_true(mux);
+ ir_node *falsen = get_Mux_false(mux);
+ ir_node *sel = get_Mux_sel(mux);
+ const lower64_entry_t *true_entry = get_node_entry(truen);
+ const lower64_entry_t *false_entry = get_node_entry(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
+ ir_node *res_high
= new_rd_Mux(dbgi, block, sel, false_h, true_h, mode);
- set_lowered(env, mux, res_low, res_high);
+ ir_set_dw_lowered(mux, res_low, res_high);
}
/**
* Translate an ASM node.
*/
-static void lower_ASM(ir_node *asmn, ir_mode *mode, lower_env_t *env)
+static void lower_ASM(ir_node *asmn, ir_mode *mode)
{
- ir_mode *his = env->high_signed;
- ir_mode *hiu = env->high_unsigned;
- int i;
- ir_node *n;
+ ir_mode *high_signed = env->high_signed;
+ ir_mode *high_unsigned = env->high_unsigned;
+ int n_outs = get_ASM_n_output_constraints(asmn);
+ ir_asm_constraint *output_constraints = get_ASM_output_constraints(asmn);
+ ir_asm_constraint *input_constraints = get_ASM_input_constraints(asmn);
+ unsigned n_64bit_outs = 0;
(void)mode;
- for (i = get_irn_arity(asmn) - 1; i >= 0; --i) {
- ir_mode *op_mode = get_irn_mode(get_irn_n(asmn, i));
- if (op_mode == his || op_mode == hiu) {
- panic("lowering ASM unimplemented");
+ for (int i = get_irn_arity(asmn) - 1; i >= 0; --i) {
+ ir_node *op = get_irn_n(asmn, i);
+ ir_mode *op_mode = get_irn_mode(op);
+ if (op_mode == high_signed || op_mode == high_unsigned) {
+ panic("lowering ASM 64bit input unimplemented");
}
}
- for (n = asmn;;) {
- ir_mode *proj_mode;
+ for (int o = 0; o < n_outs; ++o) {
+ const ir_asm_constraint *constraint = &output_constraints[o];
+ if (constraint->mode == high_signed || constraint->mode == high_unsigned) {
+ const char *constr = get_id_str(constraint->constraint);
+ ++n_64bit_outs;
+ /* TODO: How to do this architecture neutral? This is very
+ * i386 specific... */
+ if (constr[0] != '=' || constr[1] != 'A') {
+ panic("lowering ASM 64bit output only supports '=A' currently");
+ }
+ }
+ }
- n = (ir_node*)get_irn_link(n);
- if (n == NULL)
- break;
+ if (n_64bit_outs == 0)
+ return;
+
+ dbg_info *dbgi = get_irn_dbg_info(asmn);
+ ir_node *block = get_nodes_block(asmn);
+ ir_node *mem = get_ASM_mem(asmn);
+ int new_n_outs = 0;
+ int n_clobber = get_ASM_n_clobbers(asmn);
+ long *proj_map = ALLOCAN(long, n_outs);
+ ident **clobbers = get_ASM_clobbers(asmn);
+ ident *asm_text = get_ASM_text(asmn);
+ ir_asm_constraint *new_outputs
+ = ALLOCAN(ir_asm_constraint, n_outs+n_64bit_outs);
+ ir_node *new_asm;
+
+ for (int o = 0; o < n_outs; ++o) {
+ const ir_asm_constraint *constraint = &output_constraints[o];
+ if (constraint->mode == high_signed || constraint->mode == high_unsigned) {
+ new_outputs[new_n_outs].pos = constraint->pos;
+ new_outputs[new_n_outs].constraint = new_id_from_str("=a");
+ new_outputs[new_n_outs].mode = env->low_unsigned;
+ proj_map[o] = new_n_outs;
+ ++new_n_outs;
+ new_outputs[new_n_outs].pos = constraint->pos;
+ new_outputs[new_n_outs].constraint = new_id_from_str("=d");
+ if (constraint->mode == high_signed)
+ new_outputs[new_n_outs].mode = env->low_signed;
+ else
+ new_outputs[new_n_outs].mode = env->low_unsigned;
+ ++new_n_outs;
+ } else {
+ new_outputs[new_n_outs] = *constraint;
+ proj_map[o] = new_n_outs;
+ ++new_n_outs;
+ }
+ }
+ assert(new_n_outs == n_outs+(int)n_64bit_outs);
+
+ int n_inputs = get_ASM_n_inputs(asmn);
+ ir_node **new_ins = ALLOCAN(ir_node*, n_inputs);
+ for (int i = 0; i < n_inputs; ++i)
+ new_ins[i] = get_ASM_input(asmn, i);
+
+ new_asm = new_rd_ASM(dbgi, block, mem, n_inputs, new_ins, input_constraints,
+ new_n_outs, new_outputs, n_clobber, clobbers,
+ asm_text);
+
+ foreach_out_edge_safe(asmn, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ ir_mode *proj_mode = get_irn_mode(proj);
+ long pn;
- proj_mode = get_irn_mode(n);
- if (proj_mode == his || proj_mode == hiu) {
- panic("lowering ASM unimplemented");
+ if (!is_Proj(proj))
+ continue;
+ pn = get_Proj_proj(proj);
+
+ if (pn < n_outs)
+ pn = proj_map[pn];
+ else
+ pn = new_n_outs + pn - n_outs;
+
+ if (proj_mode == high_signed || proj_mode == high_unsigned) {
+ ir_mode *high_mode
+ = proj_mode == high_signed ? env->low_signed : env->low_unsigned;
+ ir_node *np_low = new_r_Proj(new_asm, env->low_unsigned, pn);
+ ir_node *np_high = new_r_Proj(new_asm, high_mode, pn+1);
+ ir_set_dw_lowered(proj, np_low, np_high);
+ } else {
+ ir_node *np = new_r_Proj(new_asm, proj_mode, pn);
+ exchange(proj, np);
}
}
}
/**
- * Translate a Sel node.
+ * Lower the builtin type to its higher part.
+ *
+ * @param mtp the builtin type to lower
+ *
+ * @return the lowered type
*/
-static void lower_Sel(ir_node *sel, ir_mode *mode, lower_env_t *env)
+static ir_type *lower_Builtin_type_high(ir_type *mtp)
{
+ ir_type *res;
+ size_t i;
+ size_t n_params;
+ size_t n_results;
+ bool must_be_lowered;
+
+ res = pmap_get(ir_type, lowered_builtin_type_high, mtp);
+ if (res != NULL)
+ return res;
+
+ n_params = get_method_n_params(mtp);
+ n_results = get_method_n_ress(mtp);
+ must_be_lowered = false;
+
+ /* check for double word parameter */
+ for (i = n_params; i > 0;) {
+ ir_type *tp = get_method_param_type(mtp, --i);
+
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ must_be_lowered = true;
+ break;
+ }
+ }
+ }
+
+ if (!must_be_lowered) {
+ set_type_link(mtp, NULL);
+ return mtp;
+ }
+
+ res = new_d_type_method(n_params, n_results, get_type_dbg_info(mtp));
+
+ /* set param types and result types */
+ for (i = 0; i < n_params; ++i) {
+ ir_type *tp = get_method_param_type(mtp, i);
+
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+
+ if (mode == env->high_signed) {
+ if (env->params->little_endian) {
+ set_method_param_type(res, i, tp_u);
+ } else {
+ set_method_param_type(res, i, tp_s);
+ }
+ } else if (mode == env->high_unsigned) {
+ set_method_param_type(res, i, tp_u);
+ } else {
+ set_method_param_type(res, i, tp);
+ }
+ } else {
+ set_method_param_type(res, i, tp);
+ }
+ }
+ for (i = n_results = 0; i < n_results; ++i) {
+ ir_type *tp = get_method_res_type(mtp, i);
+
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+
+ if (mode == env->high_signed) {
+ if (env->params->little_endian) {
+ set_method_res_type(res, i, tp_u);
+ } else {
+ set_method_res_type(res, i, tp_s);
+ }
+ } else if (mode == env->high_unsigned) {
+ set_method_res_type(res, i, tp_u);
+ } else {
+ set_method_res_type(res, i, tp);
+ }
+ } else {
+ set_method_res_type(res, i, tp);
+ }
+ }
+
+ set_method_variadicity(res, get_method_variadicity(mtp));
+ set_method_calling_convention(res, get_method_calling_convention(mtp));
+ set_method_additional_properties(res, get_method_additional_properties(mtp));
+
+ pmap_insert(lowered_builtin_type_high, mtp, res);
+ return res;
+}
+
+/**
+ * Lower the builtin type to its lower part.
+ *
+ * @param mtp the builtin type to lower
+ *
+ * @return the lowered type
+ */
+static ir_type *lower_Builtin_type_low(ir_type *mtp)
+{
+ ir_type *res;
+ size_t i;
+ size_t n_params;
+ size_t n_results;
+ bool must_be_lowered;
+
+ res = pmap_get(ir_type, lowered_builtin_type_low, mtp);
+ if (res != NULL)
+ return res;
+
+ n_params = get_method_n_params(mtp);
+ n_results = get_method_n_ress(mtp);
+ must_be_lowered = false;
+
+ /* check for double word parameter */
+ for (i = n_params; i > 0;) {
+ ir_type *tp = get_method_param_type(mtp, --i);
+
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+
+ if (mode == env->high_signed || mode == env->high_unsigned) {
+ must_be_lowered = true;
+ break;
+ }
+ }
+ }
+
+ if (!must_be_lowered) {
+ set_type_link(mtp, NULL);
+ return mtp;
+ }
+
+ res = new_d_type_method(n_params, n_results, get_type_dbg_info(mtp));
+
+ /* set param types and result types */
+ for (i = 0; i < n_params; ++i) {
+ ir_type *tp = get_method_param_type(mtp, i);
+
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+
+ if (mode == env->high_signed) {
+ if (env->params->little_endian) {
+ set_method_param_type(res, i, tp_s);
+ } else {
+ set_method_param_type(res, i, tp_u);
+ }
+ } else if (mode == env->high_unsigned) {
+ set_method_param_type(res, i, tp_u);
+ } else {
+ set_method_param_type(res, i, tp);
+ }
+ } else {
+ set_method_param_type(res, i, tp);
+ }
+ }
+ for (i = 0; i < n_results; ++i) {
+ ir_type *tp = get_method_res_type(mtp, i);
+
+ if (is_Primitive_type(tp)) {
+ ir_mode *mode = get_type_mode(tp);
+
+ if (mode == env->high_signed) {
+ if (env->params->little_endian) {
+ set_method_res_type(res, i, tp_s);
+ } else {
+ set_method_res_type(res, i, tp_u);
+ }
+ } else if (mode == env->high_unsigned) {
+ set_method_res_type(res, i, tp_u);
+ } else {
+ set_method_res_type(res, i, tp);
+ }
+ } else {
+ set_method_res_type(res, i, tp);
+ }
+ }
+
+ set_method_variadicity(res, get_method_variadicity(mtp));
+ set_method_calling_convention(res, get_method_calling_convention(mtp));
+ set_method_additional_properties(res, get_method_additional_properties(mtp));
+
+ pmap_insert(lowered_builtin_type_low, mtp, res);
+ return res;
+}
+
+/**
+ * lowers a builtin which reduces a 64bit value to a simple summary value
+ * (popcount, ffs, ...)
+ */
+static void lower_reduce_builtin(ir_node *builtin, ir_mode *mode)
+{
+ ir_builtin_kind kind = get_Builtin_kind(builtin);
+ ir_node *operand = get_Builtin_param(builtin, 0);
+ ir_mode *operand_mode = get_irn_mode(operand);
+ if (operand_mode != env->high_signed && operand_mode != env->high_unsigned)
+ return;
+
+ {
+ arch_allow_ifconv_func allow_ifconv = be_get_backend_param()->allow_ifconv;
+ int arity = get_irn_arity(builtin);
+ dbg_info *dbgi = get_irn_dbg_info(builtin);
+ ir_graph *irg = get_irn_irg(builtin);
+ ir_type *type = get_Builtin_type(builtin);
+ ir_type *lowered_type_high = lower_Builtin_type_high(type);
+ ir_type *lowered_type_low = lower_Builtin_type_low(type);
+ ir_type *result_type = get_method_res_type(lowered_type_low, 0);
+ ir_mode *result_mode = get_type_mode(result_type);
+ ir_node *block = get_nodes_block(builtin);
+ ir_node *mem = get_Builtin_mem(builtin);
+ const lower64_entry_t *entry = get_node_entry(operand);
+ ir_mode *high_mode = get_irn_mode(entry->high_word);
+ ir_node *in_high[1] = {entry->high_word};
+ ir_node *in_low[1] = {entry->low_word};
+ ir_node *res;
+
+ assert(is_NoMem(mem));
+ assert(arity == 2);
+
+ switch (kind) {
+ case ir_bk_ffs: {
+ ir_node *number_of_bits = new_r_Const_long(irg, result_mode, get_mode_size_bits(env->low_unsigned));
+ ir_node *zero_high = new_rd_Const(dbgi, irg, get_mode_null(high_mode));
+ ir_node *zero_unsigned = new_rd_Const(dbgi, irg, get_mode_null(env->low_unsigned));
+ ir_node *zero_result = new_rd_Const(dbgi, irg, get_mode_null(result_mode));
+ ir_node *cmp_low = new_rd_Cmp(dbgi, block, entry->low_word, zero_unsigned, ir_relation_equal);
+ ir_node *cmp_high = new_rd_Cmp(dbgi, block, entry->high_word, zero_high, ir_relation_equal);
+ ir_node *ffs_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
+ ir_node *high_proj = new_r_Proj(ffs_high, result_mode, pn_Builtin_max+1);
+ ir_node *high = new_rd_Add(dbgi, block, high_proj, number_of_bits, result_mode);
+ ir_node *ffs_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
+ ir_node *low = new_r_Proj(ffs_low, result_mode, pn_Builtin_max+1);
+ ir_node *mux_high = new_rd_Mux(dbgi, block, cmp_high, high, zero_result, result_mode);
+
+ if (! allow_ifconv(cmp_high, high, zero_result))
+ ir_nodeset_insert(&created_mux_nodes, mux_high);
+
+ res = new_rd_Mux(dbgi, block, cmp_low, low, mux_high, result_mode);
+
+ if (! allow_ifconv(cmp_low, low, mux_high))
+ ir_nodeset_insert(&created_mux_nodes, res);
+ break;
+ }
+ case ir_bk_clz: {
+ ir_node *zero = new_rd_Const(dbgi, irg, get_mode_null(high_mode));
+ ir_node *cmp_high = new_rd_Cmp(dbgi, block, entry->high_word, zero, ir_relation_equal);
+ ir_node *clz_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
+ ir_node *high = new_r_Proj(clz_high, result_mode, pn_Builtin_max+1);
+ ir_node *clz_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
+ ir_node *low_proj = new_r_Proj(clz_low, result_mode, pn_Builtin_max+1);
+ ir_node *number_of_bits = new_r_Const_long(irg, result_mode, get_mode_size_bits(mode));
+ ir_node *low = new_rd_Add(dbgi, block, low_proj, number_of_bits, result_mode);
+
+ res = new_rd_Mux(dbgi, block, cmp_high, high, low, result_mode);
+
+ if (! allow_ifconv(cmp_high, high, low))
+ ir_nodeset_insert(&created_mux_nodes, res);
+ break;
+ }
+ case ir_bk_ctz: {
+ ir_node *zero_unsigned = new_rd_Const(dbgi, irg, get_mode_null(env->low_unsigned));
+ ir_node *cmp_low = new_rd_Cmp(dbgi, block, entry->low_word, zero_unsigned, ir_relation_equal);
+ ir_node *ffs_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
+ ir_node *high_proj = new_r_Proj(ffs_high, result_mode, pn_Builtin_max+1);
+ ir_node *number_of_bits = new_r_Const_long(irg, result_mode, get_mode_size_bits(env->low_unsigned));
+ ir_node *high = new_rd_Add(dbgi, block, high_proj, number_of_bits, result_mode);
+ ir_node *ffs_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
+ ir_node *low = new_r_Proj(ffs_low, result_mode, pn_Builtin_max+1);
+
+ res = new_rd_Mux(dbgi, block, cmp_low, low, high, result_mode);
+
+ if (! allow_ifconv(cmp_low, low, high))
+ ir_nodeset_insert(&created_mux_nodes, res);
+ break;
+ }
+ case ir_bk_popcount: {
+ ir_node *popcount_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
+ ir_node *popcount_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
+ ir_node *high = new_r_Proj(popcount_high, result_mode, pn_Builtin_max+1);
+ ir_node *low = new_r_Proj(popcount_low, result_mode, pn_Builtin_max+1);
+
+ res = new_rd_Add(dbgi, block, high, low, result_mode);
+ break;
+ }
+ case ir_bk_parity: {
+ ir_node *parity_high;
+ ir_node *parity_low;
+ ir_node *high;
+ ir_node *low;
+
+ assert(arity == 2);
+
+ parity_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
+ high = new_r_Proj(parity_high, result_mode, pn_Builtin_max+1);
+ parity_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
+ low = new_r_Proj(parity_low, result_mode, pn_Builtin_max+1);
+ res = new_rd_Eor(dbgi, block, high, low, result_mode);
+ break;
+ }
+ default:
+ panic("unexpected builtin");
+ }
+
+ ir_node *const in[] = {
+ [pn_Builtin_M] = mem,
+ [pn_Builtin_max + 1] = res,
+ };
+ turn_into_tuple(builtin, ARRAY_SIZE(in), in);
+ }
+}
+
+/**
+ * lowers builtins performing arithmetic (bswap)
+ */
+static void lower_arithmetic_builtin(ir_node *builtin, ir_mode *mode)
+{
+ ir_builtin_kind kind = get_Builtin_kind(builtin);
+ ir_node *operand = get_Builtin_param(builtin, 0);
+ ir_mode *operand_mode = get_irn_mode(operand);
(void) mode;
+ if (operand_mode != env->high_signed && operand_mode != env->high_unsigned)
+ return;
- /* we must only lower value parameter Sels if we change the
- value parameter type. */
- if (env->value_param_tp != NULL) {
- ir_entity *ent = get_Sel_entity(sel);
- if (get_entity_owner(ent) == env->value_param_tp) {
- int pos = get_entity_arg_idx(ent);
+ {
+ dbg_info *dbgi = get_irn_dbg_info(builtin);
+ ir_type *type = get_Builtin_type(builtin);
+ ir_type *lowered_type_high = lower_Builtin_type_high(type);
+ ir_type *lowered_type_low = lower_Builtin_type_low(type);
+ ir_node *block = get_nodes_block(builtin);
+ ir_node *mem = get_Builtin_mem(builtin);
+ const lower64_entry_t *entry = get_node_entry(operand);
+ ir_mode *mode_high = get_irn_mode(entry->high_word);
+ ir_node *res_high;
+ ir_node *res_low;
+
+ switch (kind) {
+ case ir_bk_bswap: {
+ ir_node *in_high[1] = { entry->high_word };
+ ir_node *in_low[1] = { entry->low_word };
+ ir_node *swap_high = new_rd_Builtin(dbgi, block, mem, 1, in_high, kind, lowered_type_high);
+ ir_node *swap_low = new_rd_Builtin(dbgi, block, mem, 1, in_low, kind, lowered_type_low);
+ ir_node *high = new_r_Proj(swap_high, mode_high, pn_Builtin_max+1);
+ ir_node *low = new_r_Proj(swap_low, env->low_unsigned, pn_Builtin_max+1);
+ if (mode_high == env->low_signed) {
+ res_high = new_rd_Conv(dbgi, block, low, env->low_signed);
+ res_low = new_rd_Conv(dbgi, block, high, env->low_unsigned);
+ } else {
+ res_high = low;
+ res_low = high;
+ }
+ break;
+ }
+ default:
+ panic("unexpected builtin");
+ }
+
+ /* search result Proj */
+ foreach_out_edge_safe(builtin, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+ if (!is_Proj(proj))
+ continue;
- ent = get_method_value_param_ent(env->l_mtp, pos);
- set_Sel_entity(sel, ent);
+ if (get_Proj_proj(proj) == pn_Builtin_max+1) {
+ ir_set_dw_lowered(proj, res_low, res_high);
}
}
+ }
+}
+
+/**
+ * Lower double word builtins.
+ */
+static void lower_Builtin(ir_node *builtin, ir_mode *mode)
+{
+ ir_builtin_kind kind = get_Builtin_kind(builtin);
+
+ switch (kind) {
+ case ir_bk_trap:
+ case ir_bk_debugbreak:
+ case ir_bk_return_address:
+ case ir_bk_frame_address:
+ case ir_bk_prefetch:
+ case ir_bk_inport:
+ case ir_bk_outport:
+ case ir_bk_inner_trampoline:
+ /* Nothing to do. */
+ return;
+ case ir_bk_bswap:
+ lower_arithmetic_builtin(builtin, mode);
+ return;
+ case ir_bk_ffs:
+ case ir_bk_clz:
+ case ir_bk_ctz:
+ case ir_bk_popcount:
+ case ir_bk_parity:
+ lower_reduce_builtin(builtin, mode);
+ return;
+ }
+ panic("unknown builtin");
}
/**
{
switch (code) {
case iro_ASM:
+ case iro_Builtin:
case iro_Proj:
case iro_Start:
case iro_Call:
case iro_Return:
case iro_Cond:
+ case iro_Switch:
case iro_Conv:
case iro_Sel:
return true;
/**
* Enter a lowering function into an ir_op.
*/
-static void enter_lower_func(ir_op *op, lower_func func)
+void ir_register_dw_lower_function(ir_op *op, lower_dw_func func)
{
op->ops.generic = (op_func)func;
}
-/**
- * Returns non-zero if a method type must be lowered.
- *
- * @param mtp the method type
- */
-static bool mtp_must_be_lowered(lower_env_t *env, ir_type *mtp)
-{
- 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) {
- ir_type *tp = get_method_param_type(mtp, i);
-
- if (is_Primitive_type(tp)) {
- ir_mode *mode = get_type_mode(tp);
-
- if (mode == env->high_signed ||
- mode == env->high_unsigned)
- return true;
- }
- }
- return false;
-}
-
/* Determine which modes need to be lowered */
-static void setup_modes(lower_env_t *env)
+static void setup_modes(void)
{
unsigned size_bits = env->params->doubleword_size;
ir_mode *doubleword_signed = NULL;
ir_mode *doubleword_unsigned = NULL;
- size_t n_modes = get_irp_n_modes();
+ size_t n_modes = ir_get_n_modes();
ir_mode_arithmetic arithmetic;
unsigned modulo_shift;
size_t i;
/* search for doubleword modes... */
for (i = 0; i < n_modes; ++i) {
- ir_mode *mode = get_irp_mode(i);
+ ir_mode *mode = ir_get_mode(i);
if (!mode_is_int(mode))
continue;
if (get_mode_size_bits(mode) != size_bits)
/* produce lowered modes */
env->high_signed = doubleword_signed;
env->high_unsigned = doubleword_unsigned;
- env->low_signed = new_ir_mode("WS", irms_int_number, size_bits, 1,
- arithmetic, modulo_shift);
- env->low_unsigned = new_ir_mode("WU", irms_int_number, size_bits, 0,
- arithmetic, modulo_shift);
+ env->low_signed = new_int_mode("WS", arithmetic, size_bits, 1,
+ modulo_shift);
+ env->low_unsigned = new_int_mode("WU", arithmetic, size_bits, 0,
+ modulo_shift);
}
-static void enqueue_preds(lower_env_t *env, ir_node *node)
+static void enqueue_preds(ir_node *node)
{
int arity = get_irn_arity(node);
int i;
}
}
-static void lower_node(lower_env_t *env, ir_node *node)
+static void lower_node(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))
+ int arity;
+ int i;
+ lower_dw_func func;
+ ir_op *op;
+ ir_mode *mode;
+ unsigned idx;
+ lower64_entry_t *entry;
+
+ if (irn_visited_else_mark(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);
+ enqueue_preds(node);
return;
} else if (is_Phi(node)) {
- lower_Phi(env, node);
+ lower_Phi(node);
return;
}
/* depth-first: descend into operands */
if (!is_Block(node)) {
ir_node *block = get_nodes_block(node);
- lower_node(env, block);
+ lower_node(block);
}
- arity = get_irn_arity(node);
- for (i = 0; i < arity; ++i) {
- ir_node *pred = get_irn_n(node, i);
- lower_node(env, pred);
+ if (!is_Cond(node)) {
+ arity = get_irn_arity(node);
+ for (i = 0; i < arity; ++i) {
+ ir_node *pred = get_irn_n(node, i);
+ lower_node(pred);
+ }
}
op = get_irn_op(node);
- func = (lower_func) op->ops.generic;
+ func = (lower_dw_func) op->ops.generic;
if (func == NULL)
return;
mode = env->low_unsigned;
}
DB((dbg, LEVEL_1, " %+F\n", node));
- func(node, mode, env);
+ func(node, mode);
+ }
+}
+
+static void clear_node_and_phi_links(ir_node *node, void *data)
+{
+ (void) data;
+ if (get_irn_mode(node) == mode_T) {
+ set_irn_link(node, node);
+ } else {
+ set_irn_link(node, NULL);
}
+ if (is_Block(node))
+ set_Block_phis(node, NULL);
+ else if (is_Phi(node))
+ set_Phi_next(node, NULL);
}
-static void lower_irg(lower_env_t *env, ir_graph *irg)
+static void lower_irg(ir_graph *irg)
{
ir_entity *ent;
ir_type *mtp;
+ ir_type *lowered_mtp;
unsigned n_idx;
obstack_init(&env->obst);
+ /* just here for debugging */
+ current_ir_graph = irg;
+ assure_edges(irg);
+
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->entries = NEW_ARR_FZ(lower64_entry_t*, 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);
+ lowered_mtp = lower_mtp(mtp);
- if (mtp_must_be_lowered(env, mtp)) {
- ir_type *ltp = lower_mtp(env, mtp);
+ if (lowered_mtp != mtp) {
+ set_entity_type(ent, lowered_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);
+
+ fix_parameter_entities(irg, 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);
+ visit_all_identities(irg, clear_node_and_phi_links, NULL);
+ irg_walk_graph(irg, NULL, prepare_links_and_handle_rotl, env);
if (env->flags & MUST_BE_LOWERED) {
size_t i;
env->lowered_phis = NEW_ARR_F(ir_node*, 0);
while (!pdeq_empty(env->waitq)) {
ir_node *node = (ir_node*)pdeq_getl(env->waitq);
- lower_node(env, node);
+ lower_node(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);
+ fixup_phi(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);
+ clear_irg_properties(irg, IR_GRAPH_PROPERTY_CONSISTENT_DOMINANCE);
}
+ edges_deactivate(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);
}
+static const lwrdw_param_t *param;
+
+void ir_prepare_dw_lowering(const lwrdw_param_t *new_param)
+{
+ assert(new_param != NULL);
+ FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
+
+ param = new_param;
+
+ ir_clear_opcodes_generic_func();
+ ir_register_dw_lower_function(op_ASM, lower_ASM);
+ ir_register_dw_lower_function(op_Add, lower_binop);
+ ir_register_dw_lower_function(op_And, lower_And);
+ ir_register_dw_lower_function(op_Bad, lower_Bad);
+ ir_register_dw_lower_function(op_Builtin, lower_Builtin);
+ ir_register_dw_lower_function(op_Call, lower_Call);
+ ir_register_dw_lower_function(op_Cmp, lower_Cmp);
+ ir_register_dw_lower_function(op_Cond, lower_Cond);
+ ir_register_dw_lower_function(op_Const, lower_Const);
+ ir_register_dw_lower_function(op_Conv, lower_Conv);
+ ir_register_dw_lower_function(op_Div, lower_Div);
+ ir_register_dw_lower_function(op_Eor, lower_Eor);
+ ir_register_dw_lower_function(op_Load, lower_Load);
+ ir_register_dw_lower_function(op_Minus, lower_unop);
+ ir_register_dw_lower_function(op_Mod, lower_Mod);
+ ir_register_dw_lower_function(op_Mul, lower_binop);
+ ir_register_dw_lower_function(op_Mux, lower_Mux);
+ ir_register_dw_lower_function(op_Not, lower_Not);
+ ir_register_dw_lower_function(op_Or, lower_Or);
+ ir_register_dw_lower_function(op_Proj, lower_Proj);
+ ir_register_dw_lower_function(op_Return, lower_Return);
+ ir_register_dw_lower_function(op_Shl, lower_Shl);
+ ir_register_dw_lower_function(op_Shr, lower_Shr);
+ ir_register_dw_lower_function(op_Shrs, lower_Shrs);
+ ir_register_dw_lower_function(op_Start, lower_Start);
+ ir_register_dw_lower_function(op_Store, lower_Store);
+ ir_register_dw_lower_function(op_Sub, lower_binop);
+ ir_register_dw_lower_function(op_Switch, lower_Switch);
+ ir_register_dw_lower_function(op_Unknown, lower_Unknown);
+}
+
+/**
+ * Callback to lower only the Mux nodes we created.
+ */
+static int lower_mux_cb(ir_node *mux)
+{
+ return ir_nodeset_contains(&created_mux_nodes, mux);
+}
+
/*
* Do the lowering.
*/
-void lower_dw_ops(const lwrdw_param_t *param)
+void ir_lower_dw_ops(void)
{
- lower_env_t lenv;
+ lower_dw_env_t lenv;
size_t i, n;
- assert(param != NULL);
- FIRM_DBG_REGISTER(dbg, "firm.lower.dw");
-
memset(&lenv, 0, sizeof(lenv));
lenv.params = param;
- setup_modes(&lenv);
+ env = &lenv;
+
+ setup_modes();
/* create the necessary maps */
if (! intrinsic_fkt)
conv_types = new_set(cmp_conv_tp, 16);
if (! lowered_type)
lowered_type = pmap_create();
+ if (! lowered_builtin_type_low)
+ lowered_builtin_type_low = pmap_create();
+ if (! lowered_builtin_type_high)
+ lowered_builtin_type_high = pmap_create();
/* create a primitive unsigned and signed type */
if (! tp_u)
}
if (! binop_tp_s) {
binop_tp_s = new_type_method(4, 2);
- set_method_param_type(binop_tp_s, 0, tp_u);
- set_method_param_type(binop_tp_s, 1, tp_s);
- set_method_param_type(binop_tp_s, 2, tp_u);
- set_method_param_type(binop_tp_s, 3, tp_s);
- set_method_res_type(binop_tp_s, 0, tp_u);
- set_method_res_type(binop_tp_s, 1, tp_s);
- }
- if (! shiftop_tp_u) {
- shiftop_tp_u = new_type_method(3, 2);
- set_method_param_type(shiftop_tp_u, 0, tp_u);
- set_method_param_type(shiftop_tp_u, 1, tp_u);
- set_method_param_type(shiftop_tp_u, 2, tp_u);
- set_method_res_type(shiftop_tp_u, 0, tp_u);
- set_method_res_type(shiftop_tp_u, 1, tp_u);
- }
- if (! shiftop_tp_s) {
- shiftop_tp_s = new_type_method(3, 2);
- set_method_param_type(shiftop_tp_s, 0, tp_u);
- set_method_param_type(shiftop_tp_s, 1, tp_s);
- set_method_param_type(shiftop_tp_s, 2, tp_u);
- set_method_res_type(shiftop_tp_s, 0, tp_u);
- set_method_res_type(shiftop_tp_s, 1, tp_s);
+ if (env->params->little_endian) {
+ set_method_param_type(binop_tp_s, 0, tp_u);
+ set_method_param_type(binop_tp_s, 1, tp_s);
+ set_method_param_type(binop_tp_s, 2, tp_u);
+ set_method_param_type(binop_tp_s, 3, tp_s);
+ set_method_res_type(binop_tp_s, 0, tp_u);
+ set_method_res_type(binop_tp_s, 1, tp_s);
+ } else {
+ set_method_param_type(binop_tp_s, 0, tp_s);
+ set_method_param_type(binop_tp_s, 1, tp_u);
+ set_method_param_type(binop_tp_s, 2, tp_s);
+ set_method_param_type(binop_tp_s, 3, tp_u);
+ set_method_res_type(binop_tp_s, 0, tp_s);
+ set_method_res_type(binop_tp_s, 1, tp_u);
+ }
}
if (! unop_tp_u) {
unop_tp_u = new_type_method(2, 2);
}
if (! unop_tp_s) {
unop_tp_s = new_type_method(2, 2);
- set_method_param_type(unop_tp_s, 0, tp_u);
- set_method_param_type(unop_tp_s, 1, tp_s);
- set_method_res_type(unop_tp_s, 0, tp_u);
- set_method_res_type(unop_tp_s, 1, tp_s);
- }
-
- clear_irp_opcodes_generic_func();
- enter_lower_func(op_ASM, lower_ASM);
- enter_lower_func(op_Add, lower_binop);
- enter_lower_func(op_And, lower_And);
- enter_lower_func(op_Call, lower_Call);
- enter_lower_func(op_Cmp, lower_Cmp);
- enter_lower_func(op_Cond, lower_Cond);
- enter_lower_func(op_Const, lower_Const);
- enter_lower_func(op_Conv, lower_Conv);
- enter_lower_func(op_Div, lower_Div);
- enter_lower_func(op_Eor, lower_Eor);
- 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_Mux, lower_Mux);
- enter_lower_func(op_Not, lower_Not);
- enter_lower_func(op_Or, lower_Or);
- 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_Shr, lower_Shr);
- 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_Unknown, lower_Unknown);
+ if (env->params->little_endian) {
+ set_method_param_type(unop_tp_s, 0, tp_u);
+ set_method_param_type(unop_tp_s, 1, tp_s);
+ set_method_res_type(unop_tp_s, 0, tp_u);
+ set_method_res_type(unop_tp_s, 1, tp_s);
+ } else {
+ set_method_param_type(unop_tp_s, 0, tp_s);
+ set_method_param_type(unop_tp_s, 1, tp_u);
+ set_method_res_type(unop_tp_s, 0, tp_s);
+ set_method_res_type(unop_tp_s, 1, tp_u);
+ }
+ }
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);
+ irp_reserve_resources(irp, IRP_RESOURCE_TYPE_LINK | IRP_RESOURCE_TYPE_VISITED);
+ inc_master_type_visited();
/* transform all graphs */
for (i = 0, n = get_irp_n_irgs(); i < n; ++i) {
ir_graph *irg = get_irp_irg(i);
- lower_irg(&lenv, irg);
+
+ ir_nodeset_init(&created_mux_nodes);
+
+ lower_irg(irg);
+
+ if (ir_nodeset_size(&created_mux_nodes) > 0)
+ lower_mux(irg, lower_mux_cb);
+
+ ir_nodeset_destroy(&created_mux_nodes);
}
+ irp_free_resources(irp, IRP_RESOURCE_TYPE_LINK | IRP_RESOURCE_TYPE_VISITED);
del_pdeq(lenv.waitq);
+
+ env = NULL;
}
/* Default implementation. */
ent = new_entity(get_glob_type(), id, method);
set_entity_ld_ident(ent, get_entity_ident(ent));
+ set_entity_visibility(ent, ir_visibility_external);
return ent;
}
projects / libfirm / blobdiff