+/*
+ * Copyright (C) 1995-2007 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.
+ */
+
+/*
+ * Project: libFIRM
+ * File name: ir/be/benode.c
+ * Purpose: Backend node support for generic backend nodes.
+ * Author: Sebastian Hack
+ * Modified by: Michael Beck, Matthias Braun
+ * Created: 17.05.2005
+ * CVS-ID: $Id$
+ * Copyright: (c) 1998-2007 Universität Karlsruhe
+ * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ */
+
/**
* @file benode.c
* @date 17.05.2005
* @author Sebastian Hack
*
- * Backend node support.
- *
- * This file provdies Perm, Copy, Spill and Reload nodes.
- *
- * Copyright (C) 2005 Universitaet Karlsruhe
- * Released under the GPL
+ * Backend node support for generic backend nodes.
+ * This file provides Perm, Copy, Spill and Reload nodes.
*/
#ifdef HAVE_CONFIG_H
#include "util.h"
#include "debug.h"
#include "fourcc.h"
+#include "offset.h"
+#include "bitfiddle.h"
+#include "raw_bitset.h"
#include "irop_t.h"
#include "irmode_t.h"
#include "irnode_t.h"
#include "ircons_t.h"
#include "irprintf.h"
+#include "irgwalk.h"
+#include "iropt_t.h"
#include "be_t.h"
#include "belive_t.h"
#include "beirgmod.h"
+#define OUT_POS(x) (-((x) + 1))
+
/* Sometimes we want to put const nodes into get_irn_generic_attr ... */
#define get_irn_attr(irn) get_irn_generic_attr((ir_node *) (irn))
static unsigned be_node_tag = FOURCC('B', 'E', 'N', 'O');
-typedef enum _node_kind_t {
- node_kind_spill,
- node_kind_reload,
- node_kind_perm,
- node_kind_copy,
- node_kind_kill,
- node_kind_last
-} node_kind_t;
-
-typedef struct {
- node_kind_t kind;
- const arch_register_class_t *cls;
- ir_op *op;
- int n_pos;
- int *pos;
-} be_op_t;
-
typedef struct {
arch_register_req_t req;
- unsigned negate_limited : 1;
- void (*old_limited)(void *ptr, bitset_t *bs);
- void *old_limited_env;
+ arch_irn_flags_t flags;
} be_req_t;
typedef struct {
const arch_register_t *reg;
- be_req_t req;
+ be_req_t req;
+ be_req_t in_req;
} be_reg_data_t;
+/** The generic be nodes attribute type. */
typedef struct {
- int n_outs;
- const arch_register_class_t *cls;
- be_reg_data_t *reg_data;
+ be_reg_data_t *reg_data;
} be_node_attr_t;
+/** The be_Return nodes attribute type. */
+typedef struct {
+ be_node_attr_t node_attr;
+ int num_ret_vals; /**< number of return values */
+} be_return_attr_t;
+
+/** The be_Stack attribute type. */
+typedef struct {
+ be_node_attr_t node_attr;
+ int offset; /**< The offset by which the stack shall be expanded/shrinked. */
+} be_stack_attr_t;
+
+/** The be_Frame attribute type. */
typedef struct {
be_node_attr_t node_attr;
- ir_node *spill_ctx; /**< The node in whose context this spill was introduced. */
- entity *ent; /**< The entity in the stack frame the spill writes to. */
-} be_spill_attr_t;
+ ir_entity *ent;
+ int offset;
+} be_frame_attr_t;
-static ir_op *op_Spill;
-static ir_op *op_Reload;
-static ir_op *op_Perm;
-static ir_op *op_Copy;
-static ir_op *op_Keep;
+/** The be_Call attribute type. */
+typedef struct {
+ be_node_attr_t node_attr;
+ ir_entity *ent; /**< The called entity if this is a static call. */
+ ir_type *call_tp; /**< The call type, copied from the original Call node. */
+} be_call_attr_t;
+
+typedef struct {
+ be_node_attr_t node_attr;
+ ir_entity **in_entities;
+ ir_entity **out_entities;
+} be_memperm_attr_t;
+
+ir_op *op_be_Spill;
+ir_op *op_be_Reload;
+ir_op *op_be_Perm;
+ir_op *op_be_MemPerm;
+ir_op *op_be_Copy;
+ir_op *op_be_Keep;
+ir_op *op_be_CopyKeep;
+ir_op *op_be_Call;
+ir_op *op_be_Return;
+ir_op *op_be_IncSP;
+ir_op *op_be_AddSP;
+ir_op *op_be_SubSP;
+ir_op *op_be_SetSP;
+ir_op *op_be_RegParams;
+ir_op *op_be_StackParam;
+ir_op *op_be_FrameAddr;
+ir_op *op_be_FrameLoad;
+ir_op *op_be_FrameStore;
+ir_op *op_be_Barrier;
static int beo_base = -1;
#define H irop_flag_highlevel
#define c irop_flag_constlike
#define K irop_flag_keep
+#define M irop_flag_machine
+
+
+/**
+ * Compare two node attributes.
+ *
+ * @return zero if both attributes are identically
+ */
+static int cmp_node_attr(be_node_attr_t *a, be_node_attr_t *b) {
+ int i, len;
+
+ if(ARR_LEN(a->reg_data) != ARR_LEN(b->reg_data))
+ return 1;
+
+ len = ARR_LEN(a->reg_data);
+ for (i = 0; i < len; ++i) {
+ if (a->reg_data[i].reg != b->reg_data[i].reg ||
+ memcmp(&a->reg_data[i].in_req, &b->reg_data[i].in_req, sizeof(b->reg_data[i].in_req)) ||
+ memcmp(&a->reg_data[i].req, &b->reg_data[i].req, sizeof(a->reg_data[i].req)))
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * Compare the attributes of two FrameAddr nodes.
+ *
+ * @return zero if both attributes are identically
+ */
+static int FrameAddr_cmp_attr(ir_node *a, ir_node *b) {
+ be_frame_attr_t *a_attr = get_irn_attr(a);
+ be_frame_attr_t *b_attr = get_irn_attr(b);
+
+ if (a_attr->ent == b_attr->ent && a_attr->offset == b_attr->offset)
+ return cmp_node_attr(&a_attr->node_attr, &b_attr->node_attr);
+ return 1;
+}
+
+static INLINE be_req_t *get_be_req(const ir_node *node, int pos)
+{
+ int idx;
+ be_node_attr_t *attr;
+ be_reg_data_t *rd;
+
+ assert(is_be_node(node));
+ attr = get_irn_attr(node);
+
+ if(pos < 0) {
+ idx = -(pos + 1);
+ } else {
+ idx = pos;
+ assert(idx < get_irn_arity(node));
+ }
+ assert(idx < ARR_LEN(attr->reg_data));
+ rd = &attr->reg_data[idx];
+
+ return pos < 0 ? &rd->req : &rd->in_req;
+}
+
+static INLINE arch_register_req_t *get_req(const ir_node *node, int pos)
+{
+ be_req_t *bereq = get_be_req(node, pos);
+ return &bereq->req;
+}
void be_node_init(void) {
static int inited = 0;
- int i;
if(inited)
return;
inited = 1;
- beo_base = get_next_ir_opcode();
-
- /* Acquire all needed opcodes. We assume that they are consecutive! */
- for(i = beo_Spill; i < beo_Last; ++i)
- get_next_ir_opcode();
-
- op_Spill = new_ir_op(beo_base + beo_Spill, "Spill", op_pin_state_mem_pinned, N, oparity_unary, 0, sizeof(be_spill_attr_t), &be_node_op_ops);
- op_Reload = new_ir_op(beo_base + beo_Reload, "Reload", op_pin_state_mem_pinned, N, oparity_zero, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_Perm = new_ir_op(beo_base + beo_Perm, "Perm", op_pin_state_pinned, N, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_Copy = new_ir_op(beo_base + beo_Copy, "Copy", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
- op_Keep = new_ir_op(beo_base + beo_Keep, "Keep", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
-
- set_op_tag(op_Spill, &be_node_tag);
- set_op_tag(op_Reload, &be_node_tag);
- set_op_tag(op_Perm, &be_node_tag);
- set_op_tag(op_Copy, &be_node_tag);
- set_op_tag(op_Keep, &be_node_tag);
+ /* Acquire all needed opcodes. */
+ beo_base = get_next_ir_opcodes(beo_Last - 1);
+
+ op_be_Spill = new_ir_op(beo_base + beo_Spill, "be_Spill", op_pin_state_mem_pinned, N, oparity_unary, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_Reload = new_ir_op(beo_base + beo_Reload, "be_Reload", op_pin_state_mem_pinned, N, oparity_zero, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_Perm = new_ir_op(beo_base + beo_Perm, "be_Perm", op_pin_state_pinned, N, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_MemPerm = new_ir_op(beo_base + beo_MemPerm, "be_MemPerm", op_pin_state_mem_pinned, N, oparity_variable, 0, sizeof(be_memperm_attr_t), &be_node_op_ops);
+ op_be_Copy = new_ir_op(beo_base + beo_Copy, "be_Copy", op_pin_state_floats, N, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_Keep = new_ir_op(beo_base + beo_Keep, "be_Keep", op_pin_state_pinned, K, oparity_dynamic, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_CopyKeep = new_ir_op(beo_base + beo_CopyKeep, "be_CopyKeep", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_Call = new_ir_op(beo_base + beo_Call, "be_Call", op_pin_state_pinned, F, oparity_variable, 0, sizeof(be_call_attr_t), &be_node_op_ops);
+ op_be_Return = new_ir_op(beo_base + beo_Return, "be_Return", op_pin_state_pinned, X, oparity_dynamic, 0, sizeof(be_return_attr_t), &be_node_op_ops);
+ op_be_AddSP = new_ir_op(beo_base + beo_AddSP, "be_AddSP", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_SubSP = new_ir_op(beo_base + beo_SubSP, "be_SubSP", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_SetSP = new_ir_op(beo_base + beo_SetSP, "be_SetSP", op_pin_state_pinned, N, oparity_binary, 0, sizeof(be_stack_attr_t), &be_node_op_ops);
+ op_be_IncSP = new_ir_op(beo_base + beo_IncSP, "be_IncSP", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_stack_attr_t), &be_node_op_ops);
+ op_be_RegParams = new_ir_op(beo_base + beo_RegParams, "be_RegParams", op_pin_state_pinned, N, oparity_zero, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+ op_be_StackParam = new_ir_op(beo_base + beo_StackParam, "be_StackParam", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_FrameAddr = new_ir_op(beo_base + beo_FrameAddr, "be_FrameAddr", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_FrameLoad = new_ir_op(beo_base + beo_FrameLoad, "be_FrameLoad", op_pin_state_pinned, N, oparity_any, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_FrameStore = new_ir_op(beo_base + beo_FrameStore, "be_FrameStore", op_pin_state_pinned, N, oparity_any, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
+ op_be_Barrier = new_ir_op(beo_base + beo_Barrier, "be_Barrier", op_pin_state_pinned, N, oparity_dynamic, 0, sizeof(be_node_attr_t), &be_node_op_ops);
+
+ set_op_tag(op_be_Spill, &be_node_tag);
+ set_op_tag(op_be_Reload, &be_node_tag);
+ set_op_tag(op_be_Perm, &be_node_tag);
+ set_op_tag(op_be_MemPerm, &be_node_tag);
+ set_op_tag(op_be_Copy, &be_node_tag);
+ set_op_tag(op_be_Keep, &be_node_tag);
+ set_op_tag(op_be_CopyKeep, &be_node_tag);
+ set_op_tag(op_be_Call, &be_node_tag);
+ set_op_tag(op_be_Return, &be_node_tag);
+ set_op_tag(op_be_AddSP, &be_node_tag);
+ set_op_tag(op_be_SubSP, &be_node_tag);
+ set_op_tag(op_be_SetSP, &be_node_tag);
+ set_op_tag(op_be_IncSP, &be_node_tag);
+ set_op_tag(op_be_RegParams, &be_node_tag);
+ set_op_tag(op_be_StackParam, &be_node_tag);
+ set_op_tag(op_be_FrameLoad, &be_node_tag);
+ set_op_tag(op_be_FrameStore, &be_node_tag);
+ set_op_tag(op_be_FrameAddr, &be_node_tag);
+ set_op_tag(op_be_Barrier, &be_node_tag);
+
+ op_be_FrameAddr->ops.node_cmp_attr = FrameAddr_cmp_attr;
}
-static void *init_node_attr(ir_node* irn, const arch_register_class_t *cls, ir_graph *irg, int n_outs)
+/**
+ * Initializes the generic attribute of all be nodes and return ir.
+ */
+static void *init_node_attr(ir_node *node, int max_reg_data)
{
- be_node_attr_t *a = get_irn_attr(irn);
-
- a->n_outs = n_outs;
- a->cls = cls;
- a->reg_data = NULL;
+ ir_graph *irg = get_irn_irg(node);
+ struct obstack *obst = get_irg_obstack(irg);
+ be_node_attr_t *a = get_irn_attr(node);
- if(n_outs > 0) {
- int i;
+ memset(a, 0, sizeof(get_op_attr_size(get_irn_op(node))));
- a->reg_data = NEW_ARR_D(be_reg_data_t, get_irg_obstack(irg), n_outs);
- memset(a->reg_data, 0, n_outs * sizeof(a->reg_data[0]));
- for(i = 0; i < n_outs; ++i) {
- a->reg_data[i].req.req.cls = cls;
- a->reg_data[i].req.req.type = arch_register_req_type_normal;
- }
+ if(max_reg_data >= 0) {
+ a->reg_data = NEW_ARR_D(be_reg_data_t, obst, max_reg_data);
+ memset(a->reg_data, 0, max_reg_data * sizeof(a->reg_data[0]));
+ } else {
+ a->reg_data = NEW_ARR_F(be_reg_data_t, 0);
}
return a;
}
-static INLINE int is_be_node(const ir_node *irn)
+static void add_register_req(ir_node *node)
+{
+ be_node_attr_t *a = get_irn_attr(node);
+ be_reg_data_t regreq;
+ memset(®req, 0, sizeof(regreq));
+ ARR_APP1(be_reg_data_t, a->reg_data, regreq);
+}
+
+int is_be_node(const ir_node *irn)
{
return get_op_tag(get_irn_op(irn)) == &be_node_tag;
}
-be_opcode_t get_irn_be_opcode(const ir_node *irn)
+be_opcode_t be_get_irn_opcode(const ir_node *irn)
{
return is_be_node(irn) ? get_irn_opcode(irn) - beo_base : beo_NoBeOp;
}
-ir_node *be_new_Spill(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *to_spill, ir_node *ctx)
+/**
+ * Skip Proj nodes and return their Proj numbers.
+ *
+ * If *node is a Proj or Proj(Proj) node, skip it.
+ *
+ * @param node points to the node to be skipped
+ *
+ * @return 0 if *node was no Proj node, its Proj number else.
+ */
+static int redir_proj(const ir_node **node)
{
- be_spill_attr_t *a;
- ir_node *in[1];
- ir_node *res;
+ const ir_node *n = *node;
- in[0] = to_spill;
- res = new_ir_node(NULL, irg, bl, op_Spill, mode_M, 1, in);
- a = init_node_attr(res, cls, irg, 0);
- a->ent = NULL;
- a->spill_ctx = ctx;
- return res;
+ if(is_Proj(n)) {
+ ir_node *irn;
+
+ *node = irn = get_Proj_pred(n);
+ if(is_Proj(irn)) {
+ assert(get_irn_mode(irn) == mode_T);
+ *node = get_Proj_pred(irn);
+ }
+ return get_Proj_proj(n);
+ }
+
+ return 0;
}
-ir_node *be_new_Reload(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *mem)
+static be_reg_data_t *retrieve_reg_data(const ir_node *node)
{
- ir_node *in[1];
- ir_node *res;
+ be_node_attr_t *attr;
+ int pos = 0;
- in[0] = mem;
- res = new_ir_node(NULL, irg, bl, op_Reload, mode, 1, in);
- init_node_attr(res, cls, irg, 1);
- return res;
+ if(is_Proj(node)) {
+ pos = get_Proj_proj(node);
+ node = get_Proj_pred(node);
+ }
+
+ assert(is_be_node(node));
+ attr = get_irn_attr(node);
+ assert(pos >= 0 && pos < ARR_LEN(attr->reg_data) && "illegal proj number");
+
+ return &attr->reg_data[pos];
}
-ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int n, ir_node *in[])
+static void
+be_node_set_irn_reg(const void *_self, ir_node *irn, const arch_register_t *reg)
{
- ir_node *irn = new_ir_node(NULL, irg, bl, op_Perm, mode_T, n, in);
- init_node_attr(irn, cls, irg, n);
- return irn;
+ be_reg_data_t *r = retrieve_reg_data(irn);
+ r->reg = reg;
}
-ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *op)
+ir_node *be_new_Spill(const arch_register_class_t *cls, const arch_register_class_t *cls_frame,
+ ir_graph *irg, ir_node *bl, ir_node *frame, ir_node *to_spill)
{
- ir_node *in[1];
- ir_node *res;
-
- in[0] = op;
- res = new_ir_node(NULL, irg, bl, op_Copy, get_irn_mode(op), 1, in);
- init_node_attr(res, cls, irg, 1);
+ be_frame_attr_t *a;
+ ir_node *in[2];
+ ir_node *res;
+
+ in[0] = frame;
+ in[1] = to_spill;
+ res = new_ir_node(NULL, irg, bl, op_be_Spill, mode_M, 2, in);
+ a = init_node_attr(res, 2);
+ a->ent = NULL;
+ a->offset = 0;
+
+ be_node_set_reg_class(res, be_pos_Spill_frame, cls_frame);
+ be_node_set_reg_class(res, be_pos_Spill_val, cls);
return res;
}
-ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int n, ir_node *in[])
+ir_node *be_new_Reload(const arch_register_class_t *cls, const arch_register_class_t *cls_frame,
+ ir_graph *irg, ir_node *bl, ir_node *frame, ir_node *mem, ir_mode *mode)
{
- ir_node *irn;
+ ir_node *in[2];
+ ir_node *res;
- irn = new_ir_node(NULL, irg, bl, op_Keep, mode_ANY, n, in);
- init_node_attr(irn, cls, irg, 0);
- keep_alive(irn);
- return irn;
-}
+ in[0] = frame;
+ in[1] = mem;
+ res = new_ir_node(NULL, irg, bl, op_be_Reload, mode, 2, in);
-int be_is_Spill(const ir_node *irn)
-{
- return get_irn_be_opcode(irn) == beo_Spill;
+ init_node_attr(res, 2);
+ be_node_set_reg_class(res, -1, cls);
+ be_node_set_reg_class(res, be_pos_Reload_frame, cls_frame);
+ be_node_set_flags(res, -1, arch_irn_flags_rematerializable);
+ return res;
}
-int be_is_Reload(const ir_node *irn)
+ir_node *be_get_Reload_mem(const ir_node *irn)
{
- return get_irn_be_opcode(irn) == beo_Reload;
+ assert(be_is_Reload(irn));
+ return get_irn_n(irn, be_pos_Reload_mem);
}
-int be_is_Copy(const ir_node *irn)
+ir_node *be_get_Reload_frame(const ir_node *irn)
{
- return get_irn_be_opcode(irn) == beo_Copy;
+ assert(be_is_Reload(irn));
+ return get_irn_n(irn, be_pos_Reload_frame);
}
-int be_is_Perm(const ir_node *irn)
+ir_node *be_get_Spill_val(const ir_node *irn)
{
- return get_irn_be_opcode(irn) == beo_Perm;
+ assert(be_is_Spill(irn));
+ return get_irn_n(irn, be_pos_Spill_val);
}
-int be_is_Keep(const ir_node *irn)
+ir_node *be_get_Spill_frame(const ir_node *irn)
{
- return get_irn_be_opcode(irn) == beo_Keep;
+ assert(be_is_Spill(irn));
+ return get_irn_n(irn, be_pos_Spill_frame);
}
-static void be_limited(void *data, bitset_t *bs)
+ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int n, ir_node *in[])
{
- be_req_t *req = data;
+ int i;
+ ir_node *irn = new_ir_node(NULL, irg, bl, op_be_Perm, mode_T, n, in);
+ init_node_attr(irn, n);
+ for(i = 0; i < n; ++i) {
+ be_node_set_reg_class(irn, i, cls);
+ be_node_set_reg_class(irn, OUT_POS(i), cls);
+ }
- req->old_limited(req->old_limited_env, bs);
- if(req->negate_limited)
- bitset_flip_all(bs);
+ return irn;
}
-void be_set_Perm_out_req(ir_node *irn, int pos, const arch_register_req_t *req, unsigned negate_limited)
+ir_node *be_new_MemPerm(const arch_env_t *arch_env, ir_graph *irg, ir_node *bl, int n, ir_node *in[])
{
- be_node_attr_t *a = get_irn_attr(irn);
- be_req_t *r = &a->reg_data[pos].req;
+ int i;
+ ir_node *frame = get_irg_frame(irg);
+ const arch_register_class_t *cls_frame = arch_get_irn_reg_class(arch_env, frame, -1);
+ ir_node *irn;
+ const arch_register_t *sp = arch_env->isa->sp;
+ be_memperm_attr_t *attr;
+ ir_node **real_in;
+
+ real_in = alloca((n+1) * sizeof(real_in[0]));
+ real_in[0] = frame;
+ memcpy(&real_in[1], in, n * sizeof(real_in[0]));
- assert(be_is_Perm(irn));
- assert(pos >= 0 && pos < get_irn_arity(irn));
- memcpy(&r->req, req, sizeof(req[0]));
+ irn = new_ir_node(NULL, irg, bl, op_be_MemPerm, mode_T, n+1, real_in);
- if(arch_register_req_is(req, limited)) {
- r->old_limited = r->req.limited;
- r->old_limited_env = r->req.limited_env;
- r->req.limited = be_limited;
- r->req.limited_env = r;
- r->negate_limited = negate_limited;
+ init_node_attr(irn, n + 1);
+ be_node_set_reg_class(irn, 0, sp->reg_class);
+ for(i = 0; i < n; ++i) {
+ be_node_set_reg_class(irn, i + 1, cls_frame);
+ be_node_set_reg_class(irn, OUT_POS(i), cls_frame);
}
-}
-void be_set_Spill_entity(ir_node *irn, entity *ent)
-{
- be_spill_attr_t *a = get_irn_attr(irn);
- assert(be_is_Spill(irn));
- a->ent = ent;
+ attr = get_irn_attr(irn);
+
+ attr->in_entities = obstack_alloc(irg->obst, n * sizeof(attr->in_entities[0]));
+ memset(attr->in_entities, 0, n * sizeof(attr->in_entities[0]));
+ attr->out_entities = obstack_alloc(irg->obst, n*sizeof(attr->out_entities[0]));
+ memset(attr->out_entities, 0, n*sizeof(attr->out_entities[0]));
+
+ return irn;
}
-static ir_node *find_a_spill_walker(ir_node *irn, unsigned visited_nr)
+
+ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *op)
{
- if(get_irn_visited(irn) < visited_nr) {
- set_irn_visited(irn, visited_nr);
+ ir_node *in[1];
+ ir_node *res;
+ arch_register_req_t *req;
- if(is_Phi(irn)) {
- int i, n;
- for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
- ir_node *n = find_a_spill_walker(get_irn_n(irn, i), visited_nr);
- if(n != NULL)
- return n;
- }
- }
+ in[0] = op;
+ res = new_ir_node(NULL, irg, bl, op_be_Copy, get_irn_mode(op), 1, in);
+ init_node_attr(res, 1);
+ be_node_set_reg_class(res, 0, cls);
+ be_node_set_reg_class(res, OUT_POS(0), cls);
- else if(get_irn_be_opcode(irn) == beo_Spill)
- return irn;
- }
+ req = get_req(res, OUT_POS(0));
+ req->cls = cls;
+ req->type = arch_register_req_type_should_be_same;
+ req->other_same = 0;
- return NULL;
+ return res;
}
-ir_node *be_get_Spill_context(const ir_node *irn) {
- const be_spill_attr_t *a = get_irn_attr(irn);
- assert(be_is_Spill(irn));
- return a->spill_ctx;
+ir_node *be_get_Copy_op(const ir_node *cpy) {
+ return get_irn_n(cpy, be_pos_Copy_op);
}
-/**
- * Finds a spill for a reload.
- * If the reload is directly using the spill, this is simple,
- * else we perform DFS from the reload (over all PhiMs) and return
- * the first spill node we find.
- */
-static INLINE ir_node *find_a_spill(ir_node *irn)
-{
- ir_graph *irg = get_irn_irg(irn);
- unsigned visited_nr = get_irg_visited(irg) + 1;
-
- assert(be_is_Reload(irn));
- set_irg_visited(irg, visited_nr);
- return find_a_spill_walker(irn, visited_nr);
+void be_set_Copy_op(ir_node *cpy, ir_node *op) {
+ set_irn_n(cpy, be_pos_Copy_op, op);
}
-entity *be_get_spill_entity(ir_node *irn)
+ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int n, ir_node *in[])
{
- int opc = get_irn_opcode(irn);
+ int i;
+ ir_node *res;
- switch(get_irn_be_opcode(irn)) {
- case beo_Reload:
- return be_get_spill_entity(find_a_spill(irn));
- case beo_Spill:
- {
- be_spill_attr_t *a = get_irn_attr(irn);
- return a->ent;
- }
- default:
- assert(0 && "Must give spill/reload node");
+ res = new_ir_node(NULL, irg, bl, op_be_Keep, mode_ANY, -1, NULL);
+ init_node_attr(res, -1);
+
+ for(i = 0; i < n; ++i) {
+ add_irn_n(res, in[i]);
+ add_register_req(res);
+ be_node_set_reg_class(res, i, cls);
}
+ keep_alive(res);
- return NULL;
+ return res;
}
-ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn, ir_node *ctx)
+void be_Keep_add_node(ir_node *keep, const arch_register_class_t *cls, ir_node *node)
{
- const arch_register_class_t *cls = arch_get_irn_reg_class(arch_env, irn, -1);
-
- ir_node *bl = get_nodes_block(irn);
- ir_graph *irg = get_irn_irg(bl);
- ir_node *spill = be_new_Spill(cls, irg, bl, irn, ctx);
- ir_node *insert;
+ int n;
- /*
- * search the right insertion point. a spill of a phi cannot be put
- * directly after the phi, if there are some phis behind the one which
- * is spilled.
- */
- insert = sched_next(irn);
- while(is_Phi(insert) && !sched_is_end(insert))
- insert = sched_next(insert);
-
- sched_add_before(insert, spill);
- return spill;
+ assert(be_is_Keep(keep));
+ n = add_irn_n(keep, node);
+ add_register_req(keep);
+ be_node_set_reg_class(keep, n, cls);
}
-ir_node *be_reload(const arch_env_t *arch_env,
- const arch_register_class_t *cls,
- ir_node *irn, int pos, ir_mode *mode, ir_node *spill)
+ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_node *ptr,
+ int n_outs, int n, ir_node *in[], ir_type *call_tp)
{
- ir_node *reload;
+ be_call_attr_t *a;
+ int real_n = be_pos_Call_first_arg + n;
+ ir_node *irn;
+ ir_node **real_in;
+
+ NEW_ARR_A(ir_node *, real_in, real_n);
+ real_in[be_pos_Call_mem] = mem;
+ real_in[be_pos_Call_sp] = sp;
+ real_in[be_pos_Call_ptr] = ptr;
+ memcpy(&real_in[be_pos_Call_first_arg], in, n * sizeof(in[0]));
+
+ irn = new_ir_node(dbg, irg, bl, op_be_Call, mode_T, real_n, real_in);
+ a = init_node_attr(irn, (n_outs > real_n ? n_outs : real_n));
+ a->ent = NULL;
+ a->call_tp = call_tp;
+ return irn;
+}
- ir_node *bl = get_nodes_block(irn);
- ir_graph *irg = get_irn_irg(bl);
+/* Gets the call entity or NULL if this is no static call. */
+ir_entity *be_Call_get_entity(const ir_node *call) {
+ be_call_attr_t *a = get_irn_attr(call);
+ assert(be_is_Call(call));
+ return a->ent;
+}
- assert(be_is_Spill(spill) || (is_Phi(spill) && get_irn_mode(spill) == mode_M));
+/* Sets the call entity. */
+void be_Call_set_entity(ir_node *call, ir_entity *ent) {
+ be_call_attr_t *a = get_irn_attr(call);
+ assert(be_is_Call(call));
+ a->ent = ent;
+}
- reload = be_new_Reload(cls, irg, bl, mode, spill);
+/* Gets the call type. */
+ir_type *be_Call_get_type(ir_node *call) {
+ be_call_attr_t *a = get_irn_attr(call);
+ assert(be_is_Call(call));
+ return a->call_tp;
+}
- set_irn_n(irn, pos, reload);
- sched_add_before(irn, reload);
- return reload;
+/* Sets the call type. */
+void be_Call_set_type(ir_node *call, ir_type *call_tp) {
+ be_call_attr_t *a = get_irn_attr(call);
+ assert(be_is_Call(call));
+ a->call_tp = call_tp;
}
-static int redir_proj(const ir_node **node, int pos)
+/* Construct a new be_Return. */
+ir_node *be_new_Return(dbg_info *dbg, ir_graph *irg, ir_node *block, int n_res,
+ int n, ir_node *in[])
{
- const ir_node *n = *node;
+ be_return_attr_t *a;
+ ir_node *res;
+ int i;
- if(is_Proj(n)) {
- assert(pos == -1 && "Illegal pos for a Proj");
- *node = get_Proj_pred(n);
- return get_Proj_proj(n);
+ res = new_ir_node(dbg, irg, block, op_be_Return, mode_X, -1, NULL);
+ init_node_attr(res, -1);
+ for(i = 0; i < n; ++i) {
+ add_irn_n(res, in[i]);
+ add_register_req(res);
}
- return 0;
+ a = get_irn_attr(res);
+ a->num_ret_vals = n_res;
+
+ return res;
}
-static void *put_out_reg_req(arch_register_req_t *req, const ir_node *irn, int out_pos)
+/* Returns the number of real returns values */
+int be_Return_get_n_rets(ir_node *ret)
{
- const be_node_attr_t *a = get_irn_attr(irn);
+ be_return_attr_t *a = get_irn_attr(ret);
+ return a->num_ret_vals;
+}
+int be_Return_append_node(ir_node *ret, ir_node *node)
+{
+ int pos;
- if(out_pos < a->n_outs)
- memcpy(req, &a->reg_data[out_pos].req, sizeof(req[0]));
- else {
- req->type = arch_register_req_type_none;
- req->cls = NULL;
- }
+ pos = add_irn_n(ret, node);
+ add_register_req(ret);
- return req;
+ return pos;
}
-static void *put_in_reg_req(arch_register_req_t *req, const ir_node *irn, int pos)
+ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, int offset)
{
- const be_node_attr_t *a = get_irn_attr(irn);
- int n = get_irn_arity(irn);
+ be_stack_attr_t *a;
+ ir_node *irn;
+ ir_node *in[1];
- req->type = arch_register_req_type_none;
- req->cls = NULL;
+ in[0] = old_sp;
+ irn = new_ir_node(NULL, irg, bl, op_be_IncSP, sp->reg_class->mode, sizeof(in) / sizeof(in[0]), in);
+ a = init_node_attr(irn, 1);
+ a->offset = offset;
- switch(get_irn_be_opcode(irn)) {
- case beo_Spill:
- case beo_Copy:
- case beo_Keep:
- case beo_Perm:
- if(pos < n) {
- req->type = arch_register_req_type_normal;
- req->cls = a->cls;
- }
- break;
- case beo_Reload:
- default:
- req = NULL;
- }
+ be_node_set_flags(irn, -1, arch_irn_flags_ignore | arch_irn_flags_modify_sp);
+
+ /* Set output constraint to stack register. */
+ be_node_set_reg_class(irn, 0, sp->reg_class);
+ be_set_constr_single_reg(irn, BE_OUT_POS(0), sp);
+ be_node_set_irn_reg(NULL, irn, sp);
- return req;
+ return irn;
}
-static const arch_register_req_t *
-be_node_get_irn_reg_req(const void *self, arch_register_req_t *req, const ir_node *irn, int pos)
+ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz)
{
- int out_pos = pos;
+ be_node_attr_t *a;
+ ir_node *irn;
+ ir_node *in[be_pos_AddSP_last];
- if(pos < 0) {
- if(get_irn_mode(irn) == mode_T)
- return NULL;
+ in[be_pos_AddSP_old_sp] = old_sp;
+ in[be_pos_AddSP_size] = sz;
- out_pos = redir_proj((const ir_node **) &irn, pos);
- assert(is_be_node(irn));
- return put_out_reg_req(req, irn, out_pos);
- }
+ irn = new_ir_node(NULL, irg, bl, op_be_AddSP, mode_T, be_pos_AddSP_last, in);
+ a = init_node_attr(irn, be_pos_AddSP_last);
- else {
- return is_be_node(irn) ? put_in_reg_req(req, irn, pos) : NULL;
- }
+ be_node_set_flags(irn, OUT_POS(pn_be_AddSP_res), arch_irn_flags_ignore | arch_irn_flags_modify_sp);
+
+ /* Set output constraint to stack register. */
+ be_set_constr_single_reg(irn, be_pos_AddSP_old_sp, sp);
+ be_node_set_reg_class(irn, be_pos_AddSP_size, arch_register_get_class(sp));
+ be_set_constr_single_reg(irn, OUT_POS(pn_be_AddSP_res), sp);
+ a->reg_data[pn_be_AddSP_res].reg = sp;
- return req;
+ return irn;
}
-static void
-be_node_set_irn_reg(const void *_self, ir_node *irn, const arch_register_t *reg)
+ir_node *be_new_SubSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz)
{
- int out_pos;
be_node_attr_t *a;
+ ir_node *irn;
+ ir_node *in[be_pos_SubSP_last];
- out_pos = redir_proj((const ir_node **) &irn, -1);
- a = get_irn_attr(irn);
+ in[be_pos_SubSP_old_sp] = old_sp;
+ in[be_pos_SubSP_size] = sz;
- assert(is_be_node(irn));
- assert(out_pos < a->n_outs && "position too high");
- a->reg_data[out_pos].reg = reg;
+ irn = new_ir_node(NULL, irg, bl, op_be_SubSP, mode_T, be_pos_SubSP_last, in);
+ a = init_node_attr(irn, be_pos_SubSP_last);
+
+ be_node_set_flags(irn, OUT_POS(pn_be_SubSP_res), arch_irn_flags_ignore | arch_irn_flags_modify_sp);
+
+ /* Set output constraint to stack register. */
+ be_set_constr_single_reg(irn, be_pos_SubSP_old_sp, sp);
+ be_node_set_reg_class(irn, be_pos_SubSP_size, arch_register_get_class(sp));
+ be_set_constr_single_reg(irn, OUT_POS(pn_be_SubSP_res), sp);
+ a->reg_data[pn_be_SubSP_res].reg = sp;
+
+ return irn;
}
-const arch_register_t *
-be_node_get_irn_reg(const void *_self, const ir_node *irn)
+ir_node *be_new_SetSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *op, ir_node *mem)
{
- int out_pos;
be_node_attr_t *a;
+ ir_node *irn;
+ ir_node *in[3];
- out_pos = redir_proj((const ir_node **) &irn, -1);
- a = get_irn_attr(irn);
+ in[0] = mem;
+ in[1] = old_sp;
+ in[2] = op;
+ irn = new_ir_node(NULL, irg, bl, op_be_SetSP, get_irn_mode(old_sp), 3, in);
+ a = init_node_attr(irn, 3);
- assert(is_be_node(irn));
- assert(out_pos < a->n_outs && "position too high");
+ be_node_set_flags(irn, OUT_POS(0), arch_irn_flags_ignore | arch_irn_flags_modify_sp);
+
+ /* Set output constraint to stack register. */
+ be_set_constr_single_reg(irn, OUT_POS(0), sp);
+ be_node_set_reg_class(irn, be_pos_AddSP_size, sp->reg_class);
+ be_node_set_reg_class(irn, be_pos_AddSP_old_sp, sp->reg_class);
- return a->reg_data[out_pos].reg;
+ return irn;
}
-arch_irn_class_t be_node_classify(const void *_self, const ir_node *irn)
+ir_node *be_new_StackParam(const arch_register_class_t *cls, const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *frame_pointer, ir_entity *ent)
{
- redir_proj((const ir_node **) &irn, -1);
+ be_frame_attr_t *a;
+ ir_node *irn;
+ ir_node *in[1];
- switch(get_irn_be_opcode(irn)) {
-#define XXX(a,b) case beo_ ## a: return arch_irn_class_ ## b;
- XXX(Spill, spill)
- XXX(Reload, reload)
- XXX(Perm, perm)
- XXX(Copy, copy)
-#undef XXX
- default:
- return 0;
- }
+ in[0] = frame_pointer;
+ irn = new_ir_node(NULL, irg, bl, op_be_StackParam, mode, 1, in);
+ a = init_node_attr(irn, 1);
+ a->ent = ent;
- return 0;
+ be_node_set_reg_class(irn, 0, cls_frame);
+ be_node_set_reg_class(irn, OUT_POS(0), cls);
+ return irn;
}
-arch_irn_class_t be_node_get_flags(const void *_self, const ir_node *irn)
+ir_node *be_new_RegParams(ir_graph *irg, ir_node *bl, int n_outs)
{
- return 0;
-}
+ ir_node *res;
+ int i;
-static const arch_irn_ops_if_t be_node_irn_ops_if = {
- be_node_get_irn_reg_req,
- be_node_set_irn_reg,
- be_node_get_irn_reg,
- be_node_classify,
- be_node_get_flags,
-};
+ res = new_ir_node(NULL, irg, bl, op_be_RegParams, mode_T, 0, NULL);
+ init_node_attr(res, -1);
+ for(i = 0; i < n_outs; ++i)
+ add_register_req(res);
-static const arch_irn_ops_t be_node_irn_ops = {
- &be_node_irn_ops_if
-};
+ return res;
+}
-const void *be_node_get_arch_ops(const arch_irn_handler_t *self, const ir_node *irn)
+ir_node *be_RegParams_append_out_reg(ir_node *regparams,
+ const arch_env_t *arch_env,
+ const arch_register_t *reg)
{
- redir_proj((const ir_node **) &irn, -1);
- return is_be_node(irn) ? &be_node_irn_ops : NULL;
+ ir_graph *irg = get_irn_irg(regparams);
+ ir_node *block = get_nodes_block(regparams);
+ be_node_attr_t *attr = get_irn_attr(regparams);
+ const arch_register_class_t *cls = arch_register_get_class(reg);
+ ir_mode *mode = arch_register_class_mode(cls);
+ int n = ARR_LEN(attr->reg_data);
+ ir_node *proj;
+
+ assert(be_is_RegParams(regparams));
+ proj = new_r_Proj(irg, block, regparams, mode, n);
+ add_register_req(regparams);
+ be_set_constr_single_reg(regparams, BE_OUT_POS(n), reg);
+ arch_set_irn_register(arch_env, proj, reg);
+
+ /* TODO decide, whether we need to set ignore/modify sp flags here? */
+
+ return proj;
}
-const arch_irn_handler_t be_node_irn_handler = {
- be_node_get_arch_ops
-};
+ir_node *be_new_FrameLoad(const arch_register_class_t *cls_frame, const arch_register_class_t *cls_data,
+ ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_entity *ent)
+{
+ be_frame_attr_t *a;
+ ir_node *irn;
+ ir_node *in[2];
-static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason)
+ in[0] = mem;
+ in[1] = frame;
+ irn = new_ir_node(NULL, irg, bl, op_be_FrameLoad, mode_T, 2, in);
+ a = init_node_attr(irn, 3);
+ a->ent = ent;
+ a->offset = 0;
+ be_node_set_reg_class(irn, 1, cls_frame);
+ be_node_set_reg_class(irn, OUT_POS(pn_Load_res), cls_data);
+ return irn;
+}
+
+ir_node *be_new_FrameStore(const arch_register_class_t *cls_frame, const arch_register_class_t *cls_data,
+ ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *frame, ir_node *data, ir_entity *ent)
{
- be_node_attr_t *at = get_irn_attr(irn);
- int i;
+ be_frame_attr_t *a;
+ ir_node *irn;
+ ir_node *in[3];
- assert(is_be_node(irn));
+ in[0] = mem;
+ in[1] = frame;
+ in[2] = data;
+ irn = new_ir_node(NULL, irg, bl, op_be_FrameStore, mode_T, 3, in);
+ a = init_node_attr(irn, 3);
+ a->ent = ent;
+ a->offset = 0;
+ be_node_set_reg_class(irn, 1, cls_frame);
+ be_node_set_reg_class(irn, 2, cls_data);
+ return irn;
+}
- switch(reason) {
- case dump_node_opcode_txt:
- fprintf(f, get_op_name(get_irn_op(irn)));
- break;
- case dump_node_mode_txt:
- fprintf(f, get_mode_name(get_irn_mode(irn)));
- break;
- case dump_node_nodeattr_txt:
- break;
- case dump_node_info_txt:
- fprintf(f, "reg class: %s\n", at->cls->name);
- for(i = 0; i < at->n_outs; ++i) {
- const arch_register_t *reg = at->reg_data[i].reg;
- fprintf(f, "reg #%d: %s\n", i, reg ? reg->name : "n/a");
- }
+ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, ir_entity *ent)
+{
+ be_frame_attr_t *a;
+ ir_node *irn;
+ ir_node *in[1];
- if(get_irn_be_opcode(irn) == beo_Spill) {
- be_spill_attr_t *a = (be_spill_attr_t *) at;
- unsigned ofs = get_entity_offset_bytes(a->ent);
- ir_fprintf(f, "spill context: %+F\n", a->spill_ctx);
- ir_fprintf(f, "spill entity: %+F offset %x (%d)\n", a->ent, ofs, ofs);
- }
- break;
+ in[0] = frame;
+ irn = new_ir_node(NULL, irg, bl, op_be_FrameAddr, get_irn_mode(frame), 1, in);
+ a = init_node_attr(irn, 1);
+ a->ent = ent;
+ a->offset = 0;
+ be_node_set_reg_class(irn, 0, cls_frame);
+ be_node_set_reg_class(irn, OUT_POS(0), cls_frame);
+
+ return optimize_node(irn);
+}
+
+ir_node *be_new_CopyKeep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *src, int n, ir_node *in_keep[], ir_mode *mode)
+{
+ ir_node *irn;
+ ir_node **in = (ir_node **) alloca((n + 1) * sizeof(in[0]));
+
+ in[0] = src;
+ memcpy(&in[1], in_keep, n * sizeof(in[0]));
+ irn = new_ir_node(NULL, irg, bl, op_be_CopyKeep, mode, n + 1, in);
+ init_node_attr(irn, n + 1);
+ be_node_set_reg_class(irn, OUT_POS(0), cls);
+ be_node_set_reg_class(irn, 0, cls);
+
+ return irn;
+}
+
+ir_node *be_new_CopyKeep_single(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *src, ir_node *keep, ir_mode *mode)
+{
+ ir_node *in[1];
+
+ in[0] = keep;
+ return be_new_CopyKeep(cls, irg, bl, src, 1, in, mode);
+}
+
+ir_node *be_get_CopyKeep_op(const ir_node *cpy) {
+ return get_irn_n(cpy, be_pos_CopyKeep_op);
+}
+
+void be_set_CopyKeep_op(ir_node *cpy, ir_node *op) {
+ set_irn_n(cpy, be_pos_CopyKeep_op, op);
+}
+
+ir_node *be_new_Barrier(ir_graph *irg, ir_node *bl, int n, ir_node *in[])
+{
+ ir_node *res;
+ int i;
+
+ res = new_ir_node(NULL, irg, bl, op_be_Barrier, mode_T, -1, NULL);
+ init_node_attr(res, -1);
+ for(i = 0; i < n; ++i) {
+ add_irn_n(res, in[i]);
+ add_register_req(res);
}
+ return res;
+}
+
+ir_node *be_Barrier_append_node(ir_node *barrier, ir_node *node)
+{
+ ir_graph *irg = get_irn_irg(barrier);
+ ir_node *block = get_nodes_block(barrier);
+ ir_mode *mode = get_irn_mode(node);
+ int n = add_irn_n(barrier, node);
+
+ ir_node *proj = new_r_Proj(irg, block, barrier, mode, n);
+ add_register_req(barrier);
+
+ return proj;
+}
+
+int be_is_Spill (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Spill ; }
+int be_is_Reload (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Reload ; }
+int be_is_Copy (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Copy ; }
+int be_is_CopyKeep (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_CopyKeep ; }
+int be_is_Perm (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Perm ; }
+int be_is_MemPerm (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_MemPerm ; }
+int be_is_Keep (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Keep ; }
+int be_is_Call (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Call ; }
+int be_is_Return (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Return ; }
+int be_is_IncSP (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_IncSP ; }
+int be_is_SetSP (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_SetSP ; }
+int be_is_AddSP (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_AddSP ; }
+int be_is_SubSP (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_SubSP ; }
+int be_is_RegParams (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_RegParams ; }
+int be_is_StackParam (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_StackParam ; }
+int be_is_FrameAddr (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_FrameAddr ; }
+int be_is_FrameLoad (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_FrameLoad ; }
+int be_is_FrameStore (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_FrameStore ; }
+int be_is_Barrier (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Barrier ; }
+
+int be_has_frame_entity(const ir_node *irn)
+{
+ switch(be_get_irn_opcode(irn)) {
+ case beo_StackParam:
+ case beo_Spill:
+ case beo_Reload:
+ case beo_FrameStore:
+ case beo_FrameLoad:
+ case beo_FrameAddr:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+ir_entity *be_get_frame_entity(const ir_node *irn)
+{
+ if (be_has_frame_entity(irn)) {
+ be_frame_attr_t *a = get_irn_attr(irn);
+ return a->ent;
+ }
+ return NULL;
+}
+
+int be_get_frame_offset(const ir_node *irn)
+{
+ assert(is_be_node(irn));
+ if (be_has_frame_entity(irn)) {
+ be_frame_attr_t *a = get_irn_attr(irn);
+ return a->offset;
+ }
return 0;
}
-static const ir_op_ops be_node_op_ops = {
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- dump_node,
- NULL
-};
+void be_set_MemPerm_in_entity(const ir_node *irn, int n, ir_entity *ent)
+{
+ be_memperm_attr_t *attr = get_irn_attr(irn);
+
+ assert(be_is_MemPerm(irn));
+ assert(n < be_get_MemPerm_entity_arity(irn));
-pset *nodes_live_at(const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *pos, pset *live)
+ attr->in_entities[n] = ent;
+}
+
+ir_entity* be_get_MemPerm_in_entity(const ir_node* irn, int n)
{
- firm_dbg_module_t *dbg = firm_dbg_register("firm.be.node");
- ir_node *bl = get_nodes_block(pos);
- ir_node *irn;
- irn_live_t *li;
+ be_memperm_attr_t *attr = get_irn_attr(irn);
+
+ assert(be_is_MemPerm(irn));
+ assert(n < be_get_MemPerm_entity_arity(irn));
+
+ return attr->in_entities[n];
+}
+
+void be_set_MemPerm_out_entity(const ir_node *irn, int n, ir_entity *ent)
+{
+ be_memperm_attr_t *attr = get_irn_attr(irn);
+
+ assert(be_is_MemPerm(irn));
+ assert(n < be_get_MemPerm_entity_arity(irn));
+
+ attr->out_entities[n] = ent;
+}
+
+ir_entity* be_get_MemPerm_out_entity(const ir_node* irn, int n)
+{
+ be_memperm_attr_t *attr = get_irn_attr(irn);
+
+ assert(be_is_MemPerm(irn));
+ assert(n < be_get_MemPerm_entity_arity(irn));
- live_foreach(bl, li) {
- ir_node *irn = (ir_node *) li->irn;
- if(live_is_end(li) && arch_irn_consider_in_reg_alloc(arch_env, cls, irn))
- pset_insert_ptr(live, irn);
+ return attr->out_entities[n];
+}
+
+int be_get_MemPerm_entity_arity(const ir_node *irn)
+{
+ return get_irn_arity(irn) - 1;
+}
+
+void be_set_constr_single_reg(ir_node *node, int pos, const arch_register_t *reg)
+{
+ arch_register_req_t *req = get_req(node, pos);
+ const arch_register_class_t *cls = arch_register_get_class(reg);
+ ir_graph *irg = get_irn_irg(node);
+ struct obstack *obst = get_irg_obstack(irg);
+ unsigned *limited_bitset;
+
+ assert(req->cls == NULL || req->cls == cls);
+ assert(! (req->type & arch_register_req_type_limited));
+ assert(req->limited == NULL);
+
+ limited_bitset = rbitset_obstack_alloc(obst, arch_register_class_n_regs(cls));
+ rbitset_set(limited_bitset, arch_register_get_index(reg));
+
+ req->cls = cls;
+ req->type |= arch_register_req_type_limited;
+ req->limited = limited_bitset;
+}
+
+void be_set_constr_limited(ir_node *node, int pos, const arch_register_req_t *req)
+{
+ ir_graph *irg = get_irn_irg(node);
+ struct obstack *obst = get_irg_obstack(irg);
+ arch_register_req_t *r = get_req(node, pos);
+
+ assert(arch_register_req_is(req, limited));
+ assert(! (req->type & (arch_register_req_type_should_be_same | arch_register_req_type_should_be_different)));
+ memcpy(r, req, sizeof(r[0]));
+ r->limited = rbitset_duplicate_obstack_alloc(obst, req->limited, req->cls->n_regs);
+}
+
+void be_node_set_flags(ir_node *irn, int pos, arch_irn_flags_t flags)
+{
+ be_req_t *bereq = get_be_req(irn, pos);
+ bereq->flags = flags;
+}
+
+void be_node_set_reg_class(ir_node *irn, int pos, const arch_register_class_t *cls)
+{
+ arch_register_req_t *req = get_req(irn, pos);
+
+ req->cls = cls;
+
+ if (cls == NULL) {
+ req->type = arch_register_req_type_none;
+ } else if (req->type == arch_register_req_type_none) {
+ req->type = arch_register_req_type_normal;
}
+}
+
+void be_node_set_req_type(ir_node *irn, int pos, arch_register_req_type_t type)
+{
+ arch_register_req_t *req = get_req(irn, pos);
+ req->type = type;
+}
+
+ir_node *be_get_IncSP_pred(ir_node *irn) {
+ assert(be_is_IncSP(irn));
+ return get_irn_n(irn, 0);
+}
+
+void be_set_IncSP_pred(ir_node *incsp, ir_node *pred) {
+ assert(be_is_IncSP(incsp));
+ set_irn_n(incsp, 0, pred);
+}
+
+ir_node *be_get_IncSP_mem(ir_node *irn) {
+ assert(be_is_IncSP(irn));
+ return get_irn_n(irn, 1);
+}
+
+void be_set_IncSP_offset(ir_node *irn, int offset)
+{
+ be_stack_attr_t *a = get_irn_attr(irn);
+ assert(be_is_IncSP(irn));
+ a->offset = offset;
+}
- sched_foreach_reverse(bl, irn) {
- int i, n;
- ir_node *x;
+int be_get_IncSP_offset(const ir_node *irn)
+{
+ be_stack_attr_t *a = get_irn_attr(irn);
+ assert(be_is_IncSP(irn));
+ return a->offset;
+}
+ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn)
+{
+ ir_node *bl = get_nodes_block(irn);
+ ir_graph *irg = get_irn_irg(bl);
+ ir_node *frame = get_irg_frame(irg);
+ const arch_register_class_t *cls = arch_get_irn_reg_class(arch_env, irn, -1);
+ const arch_register_class_t *cls_frame = arch_get_irn_reg_class(arch_env, frame, -1);
+ ir_node *spill;
+
+ spill = be_new_Spill(cls, cls_frame, irg, bl, frame, irn);
+ return spill;
+}
+
+ir_node *be_reload(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *insert, ir_mode *mode, ir_node *spill)
+{
+ ir_node *reload;
+ ir_node *bl = is_Block(insert) ? insert : get_nodes_block(insert);
+ ir_graph *irg = get_irn_irg(bl);
+ ir_node *frame = get_irg_frame(irg);
+ const arch_register_class_t *cls_frame = arch_get_irn_reg_class(arch_env, frame, -1);
+
+ assert(be_is_Spill(spill) || (is_Phi(spill) && get_irn_mode(spill) == mode_M));
+
+ reload = be_new_Reload(cls, cls_frame, irg, bl, frame, spill, mode);
+
+ if (is_Block(insert)) {
+ insert = sched_skip(insert, 0, sched_skip_cf_predicator, (void *) arch_env);
+ sched_add_after(insert, reload);
+ } else {
+ sched_add_before(insert, reload);
+ }
+
+ return reload;
+}
+
+/*
+ ____ ____
+ | _ \ ___ __ _ | _ \ ___ __ _ ___
+ | |_) / _ \/ _` | | |_) / _ \/ _` / __|
+ | _ < __/ (_| | | _ < __/ (_| \__ \
+ |_| \_\___|\__, | |_| \_\___|\__, |___/
+ |___/ |_|
+
+*/
+
+
+static const
+arch_register_req_t *get_out_reg_req(const ir_node *irn, int out_pos)
+{
+ const be_node_attr_t *a = get_irn_attr(irn);
+
+ if(out_pos >= ARR_LEN(a->reg_data)) {
+ return arch_no_register_req;
+ }
+
+ return &a->reg_data[out_pos].req.req;
+}
+
+static const
+arch_register_req_t *get_in_reg_req(const ir_node *irn, int pos)
+{
+ const be_node_attr_t *a = get_irn_attr(irn);
+
+ if(pos >= get_irn_arity(irn) || pos >= ARR_LEN(a->reg_data))
+ return arch_no_register_req;
+
+ return &a->reg_data[pos].in_req.req;
+}
+
+static const arch_register_req_t *
+be_node_get_irn_reg_req(const void *self, const ir_node *irn, int pos)
+{
+ int out_pos = pos;
+
+ if (pos < 0) {
+ if (get_irn_mode(irn) == mode_T)
+ return arch_no_register_req;
+
+ out_pos = redir_proj((const ir_node **)&irn);
+ assert(is_be_node(irn));
+ return get_out_reg_req(irn, out_pos);
+ } else if (is_be_node(irn)) {
/*
- * If we encounter the node we want to insert the Perm after,
- * exit immediately, so that this node is still live
- */
- if(irn == pos)
- return live;
+ * For spills and reloads, we return "none" as requirement for frame
+ * pointer, so every input is ok. Some backends need this (e.g. STA).
+ */
+ if ((be_is_Spill(irn) && pos == be_pos_Spill_frame) ||
+ (be_is_Reload(irn) && pos == be_pos_Reload_frame))
+ return arch_no_register_req;
+
+ return get_in_reg_req(irn, pos);
+ }
- DBG((dbg, LEVEL_1, "%+F\n", irn));
- for(x = pset_first(live); x; x = pset_next(live))
- DBG((dbg, LEVEL_1, "\tlive: %+F\n", x));
+ return arch_no_register_req;
+}
- if(arch_irn_has_reg_class(arch_env, irn, -1, cls))
- pset_remove_ptr(live, irn);
+const arch_register_t *
+be_node_get_irn_reg(const void *_self, const ir_node *irn)
+{
+ be_reg_data_t *r;
- for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
- ir_node *op = get_irn_n(irn, i);
+ if (get_irn_mode(irn) == mode_T)
+ return NULL;
+ r = retrieve_reg_data(irn);
+ return r->reg;
+}
- if(arch_irn_consider_in_reg_alloc(arch_env, cls, op))
- pset_insert_ptr(live, op);
- }
+static arch_irn_class_t be_node_classify(const void *_self, const ir_node *irn)
+{
+ redir_proj((const ir_node **) &irn);
+
+ switch(be_get_irn_opcode(irn)) {
+#define XXX(a,b) case beo_ ## a: return arch_irn_class_ ## b
+ XXX(Spill, spill);
+ XXX(Reload, reload);
+ XXX(Perm, perm);
+ XXX(Copy, copy);
+ XXX(Return, branch);
+ XXX(StackParam, stackparam);
+#undef XXX
+ default:
+ return arch_irn_class_normal;
}
- return NULL;
+ return 0;
+}
+
+static arch_irn_flags_t be_node_get_flags(const void *_self, const ir_node *node)
+{
+ be_req_t *bereq;
+ int pos = -1;
+
+ if(is_Proj(node)) {
+ pos = OUT_POS(get_Proj_proj(node));
+ node = skip_Proj_const(node);
+ }
+
+ bereq = get_be_req(node, pos);
+
+ return bereq->flags;
+}
+
+static ir_entity *be_node_get_frame_entity(const void *self, const ir_node *irn)
+{
+ return be_get_frame_entity(irn);
+}
+
+static void be_node_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent)
+{
+ be_frame_attr_t *a;
+
+ assert(be_has_frame_entity(irn));
+
+ a = get_irn_attr(irn);
+ a->ent = ent;
+}
+
+static void be_node_set_frame_offset(const void *self, ir_node *irn, int offset)
+{
+ if(be_has_frame_entity(irn)) {
+ be_frame_attr_t *a = get_irn_attr(irn);
+ a->offset = offset;
+ }
}
-ir_node *insert_Perm_after(const arch_env_t *arch_env,
- const arch_register_class_t *cls,
- dom_front_info_t *dom_front,
- ir_node *pos)
+static int be_node_get_sp_bias(const void *self, const ir_node *irn)
+{
+ return be_is_IncSP(irn) ? be_get_IncSP_offset(irn) : 0;
+}
+
+/*
+ ___ ____ _ _ _ _ _ _
+ |_ _| _ \| \ | | | | | | __ _ _ __ __| | | ___ _ __
+ | || |_) | \| | | |_| |/ _` | '_ \ / _` | |/ _ \ '__|
+ | || _ <| |\ | | _ | (_| | | | | (_| | | __/ |
+ |___|_| \_\_| \_| |_| |_|\__,_|_| |_|\__,_|_|\___|_|
+
+*/
+
+static const arch_irn_ops_if_t be_node_irn_ops_if = {
+ be_node_get_irn_reg_req,
+ be_node_set_irn_reg,
+ be_node_get_irn_reg,
+ be_node_classify,
+ be_node_get_flags,
+ be_node_get_frame_entity,
+ be_node_set_frame_entity,
+ be_node_set_frame_offset,
+ be_node_get_sp_bias,
+ NULL, /* get_inverse */
+ NULL, /* get_op_estimated_cost */
+ NULL, /* possible_memory_operand */
+ NULL, /* perform_memory_operand */
+};
+
+static const arch_irn_ops_t be_node_irn_ops = {
+ &be_node_irn_ops_if
+};
+
+const void *be_node_get_irn_ops(const arch_irn_handler_t *self, const ir_node *irn)
{
- ir_node *bl = is_Block(pos) ? pos : get_nodes_block(pos);
- ir_graph *irg = get_irn_irg(bl);
- pset *live = pset_new_ptr_default();
- firm_dbg_module_t *dbg = firm_dbg_register("be.node");
+ redir_proj((const ir_node **) &irn);
+ return is_be_node(irn) ? &be_node_irn_ops : NULL;
+}
- ir_node *curr, *irn, *perm, **nodes;
- int i, n;
+const arch_irn_handler_t be_node_irn_handler = {
+ be_node_get_irn_ops
+};
- DBG((dbg, LEVEL_1, "Insert Perm after: %+F\n", pos));
+/*
+ ____ _ _ ___ ____ _ _ _ _ _ _
+ | _ \| |__ (_) |_ _| _ \| \ | | | | | | __ _ _ __ __| | | ___ _ __
+ | |_) | '_ \| | | || |_) | \| | | |_| |/ _` | '_ \ / _` | |/ _ \ '__|
+ | __/| | | | | | || _ <| |\ | | _ | (_| | | | | (_| | | __/ |
+ |_| |_| |_|_| |___|_| \_\_| \_| |_| |_|\__,_|_| |_|\__,_|_|\___|_|
- if(!nodes_live_at(arch_env, cls, pos, live))
- assert(0 && "position not found");
+*/
- n = pset_count(live);
+typedef struct {
+ const arch_register_t *reg;
+ arch_register_req_t req;
+ arch_irn_flags_t flags;
+} phi_attr_t;
- if(n == 0)
+typedef struct {
+ arch_irn_handler_t irn_handler;
+ arch_irn_ops_t irn_ops;
+ const arch_env_t *arch_env;
+ pmap *phi_attrs;
+} phi_handler_t;
+
+#define get_phi_handler_from_handler(h) container_of(h, phi_handler_t, irn_handler)
+#define get_phi_handler_from_ops(h) container_of(h, phi_handler_t, irn_ops)
+
+static
+const void *phi_get_irn_ops(const arch_irn_handler_t *handler,
+ const ir_node *irn)
+{
+ const phi_handler_t *h;
+ if(!is_Phi(irn) || !mode_is_datab(get_irn_mode(irn)))
return NULL;
- nodes = malloc(n * sizeof(nodes[0]));
+ h = get_phi_handler_from_handler(handler);
+ return &h->irn_ops;
+}
- DBG((dbg, LEVEL_1, "live:\n"));
- for(irn = pset_first(live), i = 0; irn; irn = pset_next(live), i++) {
- DBG((dbg, LEVEL_1, "\t%+F\n", irn));
- nodes[i] = irn;
+static INLINE
+phi_attr_t *get_Phi_attr(const phi_handler_t *handler, const ir_node *phi)
+{
+ phi_attr_t *attr = pmap_get(handler->phi_attrs, (void*) phi);
+ if(attr == NULL) {
+ ir_graph *irg = get_irn_irg(phi);
+ struct obstack *obst = get_irg_obstack(irg);
+ attr = obstack_alloc(obst, sizeof(attr[0]));
+ memset(attr, 0, sizeof(attr[0]));
+ pmap_insert(handler->phi_attrs, phi, attr);
}
- perm = be_new_Perm(cls, irg, bl, n, nodes);
- sched_add_after(pos, perm);
- free(nodes);
+ return attr;
+}
+
+/**
+ * Get register class of a Phi.
+ */
+static
+const arch_register_req_t *get_Phi_reg_req_recursive(const phi_handler_t *h,
+ const ir_node *phi,
+ pset **visited)
+{
+ int n = get_irn_arity(phi);
+ ir_node *op;
+ int i;
+
+ if(*visited && pset_find_ptr(*visited, phi))
+ return NULL;
- curr = perm;
for(i = 0; i < n; ++i) {
- ir_node *copies[1];
- ir_node *perm_op = get_irn_n(perm, i);
- const arch_register_t *reg = arch_get_irn_register(arch_env, perm_op);
+ op = get_irn_n(phi, i);
+ /* Matze: don't we unnecessary constraint our phis with this?
+ * we only need to take the regclass IMO*/
+ if(!is_Phi(op))
+ return arch_get_register_req(h->arch_env, op, BE_OUT_POS(0));
+ }
+
+ /*
+ * The operands of that Phi were all Phis themselves.
+ * We have to start a DFS for a non-Phi argument now.
+ */
+ if(!*visited)
+ *visited = pset_new_ptr(16);
+
+ pset_insert_ptr(*visited, phi);
+
+ for(i = 0; i < n; ++i) {
+ const arch_register_req_t *req;
+ op = get_irn_n(phi, i);
+ req = get_Phi_reg_req_recursive(h, op, visited);
+ if(req != NULL)
+ return req;
+ }
+
+ return NULL;
+}
+
+static
+const arch_register_req_t *phi_get_irn_reg_req(const void *self,
+ const ir_node *irn, int pos)
+{
+ phi_handler_t *phi_handler = get_phi_handler_from_ops(self);
+ phi_attr_t *attr;
+
+ if(!mode_is_datab(get_irn_mode(irn)))
+ return arch_no_register_req;
+
+ attr = get_Phi_attr(phi_handler, irn);
+
+ if(attr->req.type == arch_register_req_type_none) {
+ pset *visited = NULL;
+ const arch_register_req_t *req;
+ req = get_Phi_reg_req_recursive(phi_handler, irn, &visited);
+
+ memcpy(&attr->req, req, sizeof(req[0]));
+ assert(attr->req.cls != NULL);
+ attr->req.type = arch_register_req_type_normal;
+
+ if(visited != NULL)
+ del_pset(visited);
+ }
+
+ return &attr->req;
+}
+
+void be_set_phi_reg_req(const arch_env_t *arch_env, ir_node *node,
+ const arch_register_req_t *req)
+{
+ const arch_irn_ops_t *ops = arch_get_irn_ops(arch_env, node);
+ const phi_handler_t *handler = get_phi_handler_from_ops(ops);
+ phi_attr_t *attr;
+
+ assert(mode_is_datab(get_irn_mode(node)));
+
+ attr = get_Phi_attr(handler, node);
+ memcpy(&attr->req, req, sizeof(req[0]));
+}
+
+void be_set_phi_flags(const arch_env_t *arch_env, ir_node *node,
+ arch_irn_flags_t flags)
+{
+ const arch_irn_ops_t *ops = arch_get_irn_ops(arch_env, node);
+ const phi_handler_t *handler = get_phi_handler_from_ops(ops);
+ phi_attr_t *attr;
+
+ assert(mode_is_datab(get_irn_mode(node)));
+
+ attr = get_Phi_attr(handler, node);
+ attr->flags = flags;
+}
+
+static
+void phi_set_irn_reg(const void *self, ir_node *irn, const arch_register_t *reg)
+{
+ phi_handler_t *h = get_phi_handler_from_ops(self);
+ phi_attr_t *attr = get_Phi_attr(h, irn);
+ attr->reg = reg;
+}
+
+static
+const arch_register_t *phi_get_irn_reg(const void *self, const ir_node *irn)
+{
+ phi_handler_t *h = get_phi_handler_from_ops(self);
+ phi_attr_t *attr = get_Phi_attr(h, irn);
+ return attr->reg;
+}
+
+static
+arch_irn_class_t phi_classify(const void *self, const ir_node *irn)
+{
+ return arch_irn_class_normal;
+}
+
+static
+arch_irn_flags_t phi_get_flags(const void *self, const ir_node *irn)
+{
+ phi_handler_t *h = get_phi_handler_from_ops(self);
+ phi_attr_t *attr = get_Phi_attr(h, irn);
+ return attr->flags;
+}
+
+static
+ir_entity *phi_get_frame_entity(const void *_self, const ir_node *irn)
+{
+ return NULL;
+}
+
+static
+void phi_set_frame_entity(const void *_self, ir_node *irn, ir_entity *ent)
+{
+ assert(0);
+}
+
+static
+void phi_set_frame_offset(const void *_self, ir_node *irn, int bias)
+{
+ assert(0);
+}
+
+static
+int phi_get_sp_bias(const void* self, const ir_node *irn)
+{
+ return 0;
+}
+
+static
+const arch_irn_ops_if_t phi_irn_ops = {
+ phi_get_irn_reg_req,
+ phi_set_irn_reg,
+ phi_get_irn_reg,
+ phi_classify,
+ phi_get_flags,
+ phi_get_frame_entity,
+ phi_set_frame_entity,
+ phi_set_frame_offset,
+ phi_get_sp_bias,
+ NULL, /* get_inverse */
+ NULL, /* get_op_estimated_cost */
+ NULL, /* possible_memory_operand */
+ NULL, /* perform_memory_operand */
+};
+
+arch_irn_handler_t *be_phi_handler_new(const arch_env_t *arch_env)
+{
+ phi_handler_t *h = xmalloc(sizeof(h[0]));
+ h->irn_handler.get_irn_ops = phi_get_irn_ops;
+ h->irn_ops.impl = &phi_irn_ops;
+ h->arch_env = arch_env;
+ h->phi_attrs = pmap_create();
+ return (arch_irn_handler_t *) h;
+}
+
+void be_phi_handler_free(arch_irn_handler_t *handler)
+{
+ phi_handler_t *h = (void *) handler;
+ pmap_destroy(h->phi_attrs);
+ free(handler);
+}
+
+void be_phi_handler_reset(arch_irn_handler_t *handler)
+{
+ phi_handler_t *h = get_phi_handler_from_handler(handler);
+ if(h->phi_attrs)
+ pmap_destroy(h->phi_attrs);
+ h->phi_attrs = pmap_create();
+}
- ir_mode *mode = get_irn_mode(perm_op);
- ir_node *proj = new_r_Proj(irg, bl, perm, mode, i);
- arch_set_irn_register(arch_env, proj, reg);
+/*
+ _ _ _ ____ _
+ | \ | | ___ __| | ___ | _ \ _ _ _ __ ___ _ __ (_)_ __ __ _
+ | \| |/ _ \ / _` |/ _ \ | | | | | | | '_ ` _ \| '_ \| | '_ \ / _` |
+ | |\ | (_) | (_| | __/ | |_| | |_| | | | | | | |_) | | | | | (_| |
+ |_| \_|\___/ \__,_|\___| |____/ \__,_|_| |_| |_| .__/|_|_| |_|\__, |
+ |_| |___/
+*/
- sched_add_after(curr, proj);
- curr = proj;
+/**
+ * Dumps a register requirement to a file.
+ */
+static void dump_node_req(FILE *f, int idx, const arch_register_req_t *req,
+ const ir_node *node)
+{
+ int did_something = 0;
+ char buf[16];
+ const char *prefix = buf;
+
+ snprintf(buf, sizeof(buf), "#%d ", idx);
+ buf[sizeof(buf) - 1] = '\0';
+
+ if(req->cls != 0) {
+ char tmp[256];
+ fprintf(f, prefix);
+ arch_register_req_format(tmp, sizeof(tmp), req, node);
+ fprintf(f, "%s", tmp);
+ did_something = 1;
+ }
+
+ if(did_something)
+ fprintf(f, "\n");
+}
+
+/**
+ * Dumps node register requirements to a file.
+ */
+static void dump_node_reqs(FILE *f, ir_node *node)
+{
+ int i;
+ be_node_attr_t *a = get_irn_attr(node);
+ int len = ARR_LEN(a->reg_data);
+
+ fprintf(f, "registers: \n");
+ for(i = 0; i < len; ++i) {
+ be_reg_data_t *rd = &a->reg_data[i];
+ if(rd->reg)
+ fprintf(f, "#%d: %s\n", i, rd->reg->name);
+ }
- copies[0] = proj;
- be_introduce_copies(dom_front, perm_op, 1, copies);
+ fprintf(f, "in requirements:\n");
+ for(i = 0; i < len; ++i) {
+ dump_node_req(f, i, &a->reg_data[i].in_req.req, node);
+ }
+
+ fprintf(f, "\nout requirements:\n");
+ for(i = 0; i < len; ++i) {
+ dump_node_req(f, i, &a->reg_data[i].req.req, node);
}
- return perm;
}
+
+/**
+ * ir_op-Operation: dump a be node to file
+ */
+static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason)
+{
+ be_node_attr_t *at = get_irn_attr(irn);
+
+ assert(is_be_node(irn));
+
+ switch(reason) {
+ case dump_node_opcode_txt:
+ fprintf(f, get_op_name(get_irn_op(irn)));
+ break;
+ case dump_node_mode_txt:
+ fprintf(f, get_mode_name(get_irn_mode(irn)));
+ break;
+ case dump_node_nodeattr_txt:
+ break;
+ case dump_node_info_txt:
+ dump_node_reqs(f, irn);
+
+ if(be_has_frame_entity(irn)) {
+ be_frame_attr_t *a = (be_frame_attr_t *) at;
+ if (a->ent) {
+ int bits = get_type_size_bits(get_entity_type(a->ent));
+ ir_fprintf(f, "frame entity: %+F, offset 0x%x (%d), size 0x%x (%d) bits\n",
+ a->ent, a->offset, a->offset, bits, bits);
+ }
+
+ }
+
+ switch(be_get_irn_opcode(irn)) {
+ case beo_IncSP:
+ {
+ be_stack_attr_t *a = (be_stack_attr_t *) at;
+ if (a->offset == BE_STACK_FRAME_SIZE_EXPAND)
+ fprintf(f, "offset: FRAME_SIZE\n");
+ else if(a->offset == BE_STACK_FRAME_SIZE_SHRINK)
+ fprintf(f, "offset: -FRAME SIZE\n");
+ else
+ fprintf(f, "offset: %u\n", a->offset);
+ }
+ break;
+ case beo_Call:
+ {
+ be_call_attr_t *a = (be_call_attr_t *) at;
+
+ if (a->ent)
+ fprintf(f, "\ncalling: %s\n", get_entity_name(a->ent));
+ }
+ break;
+ case beo_MemPerm:
+ {
+ int i;
+ for(i = 0; i < be_get_MemPerm_entity_arity(irn); ++i) {
+ ir_entity *in, *out;
+ in = be_get_MemPerm_in_entity(irn, i);
+ out = be_get_MemPerm_out_entity(irn, i);
+ if(in) {
+ fprintf(f, "\nin[%d]: %s\n", i, get_entity_name(in));
+ }
+ if(out) {
+ fprintf(f, "\nout[%d]: %s\n", i, get_entity_name(out));
+ }
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * ir_op-Operation:
+ * Copies the backend specific attributes from old node to new node.
+ */
+static void copy_attr(const ir_node *old_node, ir_node *new_node)
+{
+ be_node_attr_t *old_attr = get_irn_attr(old_node);
+ be_node_attr_t *new_attr = get_irn_attr(new_node);
+ struct obstack *obst = get_irg_obstack(get_irn_irg(new_node));
+ unsigned i, len;
+
+ assert(is_be_node(old_node));
+ assert(is_be_node(new_node));
+
+ memcpy(new_attr, old_attr, get_op_attr_size(get_irn_op(old_node)));
+ new_attr->reg_data = NULL;
+
+ if(old_attr->reg_data != NULL)
+ len = ARR_LEN(old_attr->reg_data);
+ else
+ len = 0;
+
+ if(get_irn_op(old_node)->opar == oparity_dynamic
+ || be_is_RegParams(old_node)) {
+ new_attr->reg_data = NEW_ARR_F(be_reg_data_t, len);
+ } else {
+ new_attr->reg_data = NEW_ARR_D(be_reg_data_t, obst, len);
+ }
+
+ if(len > 0) {
+ memcpy(new_attr->reg_data, old_attr->reg_data, len * sizeof(be_reg_data_t));
+ for(i = 0; i < len; ++i) {
+ const be_reg_data_t *rd = &old_attr->reg_data[i];
+ be_reg_data_t *newrd = &new_attr->reg_data[i];
+ if(arch_register_req_is(&rd->req.req, limited)) {
+ const arch_register_req_t *req = &rd->req.req;
+ arch_register_req_t *new_req = &newrd->req.req;
+ new_req->limited
+ = rbitset_duplicate_obstack_alloc(obst, req->limited, req->cls->n_regs);
+ }
+ if(arch_register_req_is(&rd->in_req.req, limited)) {
+ const arch_register_req_t *req = &rd->in_req.req;
+ arch_register_req_t *new_req = &newrd->in_req.req;
+ new_req->limited
+ = rbitset_duplicate_obstack_alloc(obst, req->limited, req->cls->n_regs);
+ }
+ }
+ }
+}
+
+static const ir_op_ops be_node_op_ops = {
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ copy_attr,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ dump_node,
+ NULL
+};