/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
* @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include "lowering.h"
#include "irop_t.h"
#include "irgmod.h"
#include "irgopt.h"
#include "trouts.h"
+#include "irvrfy.h"
#include "pmap.h"
-#include "xmalloc.h"
+#include "array_t.h"
#include "iropt_dbg.h"
+#include "error.h"
-/** Walker environment */
+/** Walker environment. */
typedef struct _walker_env {
pmap *c_map; /**< The intrinsic call map. */
unsigned nr_of_intrinsics; /**< statistics */
ir_entity *ent;
symconst = get_Call_ptr(node);
- if (get_irn_op(symconst) != op_SymConst ||
- get_SymConst_kind(symconst) != symconst_addr_ent)
+ if (! is_Global(symconst))
return;
- ent = get_SymConst_entity(symconst);
+ ent = get_Global_entity(symconst);
p = pmap_find(wenv->c_map, ent);
if (p) {
for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
irg = get_irp_irg(i);
- if (part_block_used)
+ if (part_block_used) {
+ ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK | IR_RESOURCE_PHI_LIST);
collect_phiprojs(irg);
+ }
wenv.nr_of_intrinsics = 0;
irg_walk_graph(irg, NULL, call_mapper, &wenv);
- if (wenv.nr_of_intrinsics) {
- /* changes detected */
+ if (part_block_used)
+ ir_free_resources(irg, IR_RESOURCE_IRN_LINK | IR_RESOURCE_PHI_LIST);
+
+ if (wenv.nr_of_intrinsics > 0) {
+ /* Changes detected: we might have added/removed nodes. */
set_irg_outs_inconsistent(irg);
set_irg_callee_info_state(irg, irg_callee_info_inconsistent);
- /* exception control flow might have changed */
+ /* Exception control flow might have changed / new block might have added. */
set_irg_doms_inconsistent(irg);
set_irg_extblk_inconsistent(irg);
set_irg_loopinfo_inconsistent(irg);
- /* calls might be removed/added */
+ /* Calls might be removed/added. */
set_trouts_inconsistent();
- /* optimize it, tuple might be created */
- local_optimize_graph(irg);
+ /* verify here */
+ irg_verify(irg, VRFY_NORMAL);
+
+ /* Optimize it, tuple might be created. */
+ optimize_graph_df(irg);
nr_of_intrinsics += wenv.nr_of_intrinsics;
}
/* Beware: do we need here a protection against CSE? Better we do it. */
int old_cse = get_opt_cse();
set_opt_cse(0);
- reg_jmp = new_r_Jmp(current_ir_graph, block);
+ reg_jmp = new_r_Jmp(block);
set_opt_cse(old_cse);
exc_jmp = new_Bad();
}
- irn = new_r_Tuple(current_ir_graph, block, 1, &irn);
+ irn = new_r_Tuple(block, 1, &irn);
turn_into_tuple(call, pn_Call_max);
set_Tuple_pred(call, pn_Call_M_regular, mem);
dbg_info *dbg = get_irn_dbg_info(call);
(void) ctx;
- irn = new_rd_Abs(dbg, current_ir_graph, block, op, get_irn_mode(op));
+ irn = new_rd_Abs(dbg, block, op, get_irn_mode(op));
DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_ABS);
replace_call(irn, call, mem, NULL, NULL);
return 1;
} /* i_mapper_abs */
+/* A mapper for the integer bswap. */
+int i_mapper_bswap(ir_node *call, void *ctx) {
+ ir_node *mem = get_Call_mem(call);
+ ir_node *block = get_nodes_block(call);
+ ir_node *op = get_Call_param(call, 0);
+ ir_type *tp = get_Call_type(call);
+ dbg_info *dbg = get_irn_dbg_info(call);
+ ir_node *irn;
+ (void) ctx;
+
+ irn = new_rd_Builtin(dbg, block, get_irg_no_mem(current_ir_graph), 1, &op, ir_bk_bswap, tp);
+ set_irn_pinned(irn, op_pin_state_floats);
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_ABS);
+ irn = new_r_Proj(block, irn, get_irn_mode(op), pn_Builtin_1_result);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+} /* i_mapper_bswap */
+
/* A mapper for the alloca() function. */
int i_mapper_alloca(ir_node *call, void *ctx) {
ir_node *mem = get_Call_mem(call);
dbg_info *dbg = get_irn_dbg_info(call);
(void) ctx;
- irn = new_rd_Alloc(dbg, current_ir_graph, block, mem, op, firm_unknown_type, stack_alloc);
- mem = new_Proj(irn, mode_M, pn_Alloc_M);
- no_exc = new_Proj(irn, mode_X, pn_Alloc_X_regular);
- exc = new_Proj(irn, mode_X, pn_Alloc_X_except);
- irn = new_Proj(irn, get_modeP_data(), pn_Alloc_res);
+ if (mode_is_signed(get_irn_mode(op))) {
+ ir_mode *mode = get_irn_mode(op);
+ mode = find_unsigned_mode(mode);
+ if (mode == NULL) {
+ panic("Cannot find unsigned mode for %M", mode);
+ }
+ op = new_rd_Conv(dbg, block, op, mode);
+ }
+
+ irn = new_rd_Alloc(dbg, block, mem, op, firm_unknown_type, stack_alloc);
+ mem = new_rd_Proj(dbg, block, irn, mode_M, pn_Alloc_M);
+ no_exc = new_rd_Proj(dbg, block, irn, mode_X, pn_Alloc_X_regular);
+ exc = new_rd_Proj(dbg, block, irn, mode_X, pn_Alloc_X_except);
+ irn = new_rd_Proj(dbg, block, irn, get_modeP_data(), pn_Alloc_res);
DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_ALLOCA);
replace_call(irn, call, mem, no_exc, exc);
if (tarval_is_null(tv)) {
/* pow(x, 0.0) = 1.0 */
ir_mode *mode = get_tarval_mode(tv);
- irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ irn = new_Const(get_mode_one(mode));
} else if (tarval_is_one(tv)) {
/* pow(x, 1.0) = x */
irn = left;
ir_mode *mode = get_irn_mode(left);
ir_node *quot;
- irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
- quot = new_rd_Quot(dbg, current_ir_graph, block, mem, irn, left, mode, op_pin_state_pinned);
- mem = new_r_Proj(current_ir_graph, block, quot, mode_M, pn_Quot_M);
- irn = new_r_Proj(current_ir_graph, block, quot, mode, pn_Quot_res);
- reg_jmp = new_r_Proj(current_ir_graph, block, quot, mode_X, pn_Quot_X_regular);
- exc_jmp = new_r_Proj(current_ir_graph, block, quot, mode_X, pn_Quot_X_except);
+ irn = new_Const(get_mode_one(mode));
+ quot = new_rd_Quot(dbg, block, mem, irn, left, mode, op_pin_state_pinned);
+ mem = new_r_Proj(block, quot, mode_M, pn_Quot_M);
+ irn = new_r_Proj(block, quot, mode, pn_Quot_res);
+ reg_jmp = new_r_Proj(block, quot, mode_X, pn_Quot_X_regular);
+ exc_jmp = new_r_Proj(block, quot, mode_X, pn_Quot_X_except);
}
DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_POW);
replace_call(irn, call, mem, reg_jmp, exc_jmp);
if (is_Const(val) && is_Const_null(val)) {
/* exp(0.0) = 1.0 */
- ir_node *block = get_nodes_block(call);
ir_mode *mode = get_irn_mode(val);
- ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ ir_node *irn = new_Const(get_mode_one(mode));
ir_node *mem = get_Call_mem(call);
DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_EXP);
replace_call(irn, call, mem, NULL, NULL);
if (is_Const(val) && is_Const_one(val)) {
/* acos(1.0) = 0.0 */
- ir_node *block = get_nodes_block(call);
ir_mode *mode = get_irn_mode(val);
- ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ ir_node *irn = new_Const(get_mode_null(mode));
ir_node *mem = get_Call_mem(call);
DBG_OPT_ALGSIM0(call, irn, reason);
replace_call(irn, call, mem, NULL, NULL);
dbg_info *dbg = get_irn_dbg_info(val);
op = get_Minus_op(op);
- val = new_rd_Conv(dbg, current_ir_graph, block, op, mode);
+ val = new_rd_Conv(dbg, block, op, mode);
if (is_Conv(val)) {
/* still a Conv ? */
set_Conv_strict(val, 1);
if (is_Const(val) && is_Const_null(val)) {
/* f(0.0) = 1.0 */
- ir_node *block = get_nodes_block(call);
ir_mode *mode = get_irn_mode(val);
- ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ ir_node *irn = new_Const(get_mode_one(mode));
ir_node *mem = get_Call_mem(call);
DBG_OPT_ALGSIM0(call, irn, reason);
replace_call(irn, call, mem, NULL, NULL);
*/
static ir_entity *get_const_entity(ir_node *ptr) {
/* FIXME: this cannot handle constant strings inside struct initializers yet */
- if (is_SymConst(ptr) && get_SymConst_kind(ptr) == symconst_addr_ent) {
- ir_entity *ent = get_SymConst_entity(ptr);
+ if (is_Global(ptr)) {
+ ir_entity *ent = get_Global_entity(ptr);
if (get_entity_variability(ent) == variability_constant) {
/* a constant entity */
mode = get_type_mode(tp);
/* FIXME: This is too restrict, as the type char might be more the 8bits */
- if (!mode_is_int(mode) || get_mode_size_bits(mode) != get_mode_size_bits(mode_Bs))
+ if (!mode_is_int(mode) || get_mode_size_bits(mode) != 8)
return NULL;
n = get_compound_ent_n_values(ent);
mode = get_type_mode(tp);
/* FIXME: This is too restrict, as the type char might be more the 8bits */
- if (!mode_is_int(mode) || get_mode_size_bits(mode) != get_mode_size_bits(mode_Bs))
+ if (!mode_is_int(mode) || get_mode_size_bits(mode) != 8)
return NULL;
tp = get_entity_type(right);
mode = get_type_mode(tp);
/* FIXME: This is too restrict, as the type char might be more the 8bits */
- if (!mode_is_int(mode) || get_mode_size_bits(mode) != get_mode_size_bits(mode_Bs))
+ if (!mode_is_int(mode) || get_mode_size_bits(mode) != 8)
return NULL;
n = get_compound_ent_n_values(left);
mode = get_type_mode(tp);
/* FIXME: This is too restrict, as the type char might be more the 8bits */
- if (!mode_is_int(mode) || get_mode_size_bits(mode) != get_mode_size_bits(mode_Bs))
+ if (!mode_is_int(mode) || get_mode_size_bits(mode) != 8)
return 0;
n = get_compound_ent_n_values(ent);
ir_node *irn = NULL;
ir_node *exc = NULL;
ir_node *reg = NULL;
- ir_node *adr = get_Call_ptr(call);
- ir_entity *ent = get_SymConst_entity(adr);
- ir_type *call_tp = get_entity_type(ent);
+ ir_type *call_tp = get_Call_type(call);
ir_type *res_tp = get_method_res_type(call_tp, 0);
ir_entity *ent_l, *ent_r;
ir_type *char_tp;
/* a strcmp(s, s) ==> 0 */
ir_node *mem = get_Call_mem(call);
ir_mode *mode = get_type_mode(res_tp);
- ir_node *block = get_nodes_block(call);
- irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ irn = new_Const(get_mode_null(mode));
DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_STRCMP);
replace_call(irn, call, mem, NULL, NULL);
return 1;
mode = get_type_mode(char_tp);
/* replace the strcmp by (*x) */
- irn = new_rd_Load(dbg, current_ir_graph, block, mem, v, mode);
- mem = new_r_Proj(current_ir_graph, block, irn, mode_M, pn_Load_M);
- exc = new_r_Proj(current_ir_graph, block, irn, mode_X, pn_Load_X_except);
- reg = new_r_Proj(current_ir_graph, block, irn, mode_X, pn_Load_X_regular);
- irn = new_r_Proj(current_ir_graph, block, irn, mode, pn_Load_res);
+ irn = new_rd_Load(dbg, block, mem, v, mode, 0);
+ mem = new_r_Proj(block, irn, mode_M, pn_Load_M);
+ exc = new_r_Proj(block, irn, mode_X, pn_Load_X_except);
+ reg = new_r_Proj(block, irn, mode_X, pn_Load_X_regular);
+ irn = new_r_Proj(block, irn, mode, pn_Load_res);
/* conv to the result mode */
mode = get_type_mode(res_tp);
- irn = new_rd_Conv(dbg, current_ir_graph, block, irn, mode);
+ irn = new_rd_Conv(dbg, block, irn, mode);
if (v == right) {
/* negate in the ("", s) case */
- irn = new_rd_Minus(dbg, current_ir_graph, block, irn, mode);
+ irn = new_rd_Minus(dbg, block, irn, mode);
}
}
}
ir_type *call_tp = get_entity_type(ent);
ir_type *res_tp = get_method_res_type(call_tp, 0);
ir_mode *mode = get_type_mode(res_tp);
- ir_node *block = get_nodes_block(call);
- irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ irn = new_Const(get_mode_null(mode));
DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_STRNCMP);
replace_call(irn, call, mem, NULL, NULL);
return 1;
return 0;
} /* i_mapper_strncmp */
+/* A mapper for strcpy */
+int i_mapper_strcpy(ir_node *call, void *ctx) {
+ ir_node *dst = get_Call_param(call, 0);
+ ir_node *src = get_Call_param(call, 1);
+ (void) ctx;
+
+ if (dst == src) {
+ /* a strcpy(d, s) ==> d */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *dst = get_Call_param(call, 0);
+
+ DBG_OPT_ALGSIM0(call, dst, FS_OPT_RTS_STRCPY);
+ replace_call(dst, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_strcpy */
+
/* A mapper for memcpy */
int i_mapper_memcpy(ir_node *call, void *ctx) {
+ ir_node *dst = get_Call_param(call, 0);
+ ir_node *src = get_Call_param(call, 1);
ir_node *len = get_Call_param(call, 2);
(void) ctx;
- if (is_Const(len) && is_Const_null(len)) {
- /* a memcpy(d, s, 0) ==> d */
+ if (dst == src || (is_Const(len) && is_Const_null(len))) {
+ /* a memcpy(d, d, len) ==> d OR
+ a memcpy(d, s, 0) ==> d */
ir_node *mem = get_Call_mem(call);
- ir_node *dst = get_Call_param(call, 0);
DBG_OPT_ALGSIM0(call, dst, FS_OPT_RTS_MEMCPY);
replace_call(dst, call, mem, NULL, NULL);
return 0;
} /* i_mapper_memcpy */
+/* A mapper for mempcpy */
+int i_mapper_mempcpy(ir_node *call, void *ctx) {
+ ir_node *dst = get_Call_param(call, 0);
+ ir_node *src = get_Call_param(call, 1);
+ ir_node *len = get_Call_param(call, 2);
+ (void) ctx;
+
+ if (dst == src || (is_Const(len) && is_Const_null(len))) {
+ /* a memcpy(d, d, len) ==> d + len OR
+ a memcpy(d, s, 0) ==> d + 0 */
+ dbg_info *dbg = get_irn_dbg_info(call);
+ ir_node *mem = get_Call_mem(call);
+ ir_node *blk = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(dst);
+ ir_node *res = new_rd_Add(dbg, blk, dst, len, mode);
+
+ DBG_OPT_ALGSIM0(call, res, FS_OPT_RTS_MEMPCPY);
+ replace_call(res, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_mempcpy */
+
+/* A mapper for memmove */
+int i_mapper_memmove(ir_node *call, void *ctx) {
+ ir_node *dst = get_Call_param(call, 0);
+ ir_node *src = get_Call_param(call, 1);
+ ir_node *len = get_Call_param(call, 2);
+ (void) ctx;
+
+ if (dst == src || (is_Const(len) && is_Const_null(len))) {
+ /* a memmove(d, d, len) ==> d OR
+ a memmove(d, s, 0) ==> d */
+ ir_node *mem = get_Call_mem(call);
+
+ DBG_OPT_ALGSIM0(call, dst, FS_OPT_RTS_MEMMOVE);
+ replace_call(dst, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_memmove */
+
/* A mapper for memset */
int i_mapper_memset(ir_node *call, void *ctx) {
ir_node *len = get_Call_param(call, 2);
return 0;
} /* i_mapper_memset */
+/* A mapper for memcmp */
+int i_mapper_memcmp(ir_node *call, void *ctx) {
+ ir_node *left = get_Call_param(call, 0);
+ ir_node *right = get_Call_param(call, 1);
+ ir_node *len = get_Call_param(call, 2);
+ ir_node *irn;
+ (void) ctx;
+
+ if (left == right || (is_Const(len) && is_Const_null(len))) {
+ /* a memcmp(s, s, len) ==> 0 OR
+ a memcmp(a, b, 0) ==> 0 */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *adr = get_Call_ptr(call);
+ ir_entity *ent = get_SymConst_entity(adr);
+ ir_type *call_tp = get_entity_type(ent);
+ ir_type *res_tp = get_method_res_type(call_tp, 0);
+ ir_mode *mode = get_type_mode(res_tp);
+
+ irn = new_Const(get_mode_null(mode));
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_STRNCMP);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_memcmp */
+
/**
* Returns the result mode of a node.
*/
/* step 1: create the call */
sym.entity_p = rt->ent;
- addr = new_r_SymConst(irg, bl, mode_P_code, sym, symconst_addr_ent);
- call = new_rd_Call(get_irn_dbg_info(node), irg, bl, mem, addr, n_param, in, mtp);
+ addr = new_r_SymConst(irg, mode_P_code, sym, symconst_addr_ent);
+ call = new_rd_Call(get_irn_dbg_info(node), bl, mem, addr, n_param, in, mtp);
set_irn_pinned(call, get_irn_pinned(node));
if (n_res > 0)
- res_proj = new_r_Proj(irg, bl, call, mode_T, pn_Call_T_result);
+ res_proj = new_r_Proj(bl, call, mode_T, pn_Call_T_result);
else
res_proj = NULL;
for (i = 0; i < n_proj; ++i)
set_Tuple_pred(node, i, new_r_Bad(irg));
if (rt->mem_proj_nr >= 0)
- set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(irg, bl, call, mode_M, pn_Call_M_regular));
- if (get_irn_op(mem) != op_NoMem) {
+ set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(bl, call, mode_M, pn_Call_M_regular));
+ if (!is_NoMem(mem)) {
/* Exceptions can only be handled with real memory */
if (rt->regular_proj_nr >= 0)
- set_Tuple_pred(node, rt->regular_proj_nr, new_r_Proj(irg, bl, call, mode_X, pn_Call_X_regular));
+ set_Tuple_pred(node, rt->regular_proj_nr, new_r_Proj(bl, call, mode_X, pn_Call_X_regular));
if (rt->exc_proj_nr >= 0)
- set_Tuple_pred(node, rt->exc_proj_nr, new_r_Proj(irg, bl, call, mode_X, pn_Call_X_except));
+ set_Tuple_pred(node, rt->exc_proj_nr, new_r_Proj(bl, call, mode_X, pn_Call_X_except));
if (rt->exc_mem_proj_nr >= 0)
- set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(irg, bl, call, mode_M, pn_Call_M_except));
+ set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(bl, call, mode_M, pn_Call_M_except));
}
if (rt->res_proj_nr >= 0)
for (i = 0; i < n_res; ++i)
set_Tuple_pred(node, rt->res_proj_nr + i,
- new_r_Proj(irg, bl, res_proj, get_type_mode(get_method_res_type(mtp, i)), i));
+ new_r_Proj(bl, res_proj, get_type_mode(get_method_res_type(mtp, i)), i));
return 1;
} else {
/* only one return value supported */
if (n_res > 0) {
ir_mode *mode = get_type_mode(get_method_res_type(mtp, 0));
- res_proj = new_r_Proj(irg, bl, call, mode_T, pn_Call_T_result);
- res_proj = new_r_Proj(irg, bl, res_proj, mode, 0);
+ res_proj = new_r_Proj(bl, call, mode_T, pn_Call_T_result);
+ res_proj = new_r_Proj(bl, res_proj, mode, 0);
exchange(node, res_proj);
return 1;