Commit 2ece86b7 authored by Sebastian Hack's avatar Sebastian Hack
Browse files

Several changes

parent 1d017c58
......@@ -38,11 +38,14 @@
#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');
#if 0
typedef enum _node_kind_t {
node_kind_spill,
node_kind_reload,
......@@ -51,14 +54,7 @@ typedef enum _node_kind_t {
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;
#endif
typedef enum {
be_req_kind_old_limited,
......@@ -88,7 +84,6 @@ typedef struct {
typedef struct {
int max_reg_data;
const arch_register_class_t *cls;
be_reg_data_t *reg_data;
} be_node_attr_t;
......@@ -118,6 +113,7 @@ static ir_op *op_Call;
static ir_op *op_Return;
static ir_op *op_IncSP;
static ir_op *op_AddSP;
static ir_op *op_SetSP;
static ir_op *op_RegParams;
static ir_op *op_StackParam;
static ir_op *op_FrameAddr;
......@@ -158,6 +154,7 @@ void be_node_init(void) {
op_Call = new_ir_op(beo_base + beo_Call, "Call", op_pin_state_pinned, N, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
op_Return = new_ir_op(beo_base + beo_Return, "Return", op_pin_state_pinned, X, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops);
op_AddSP = new_ir_op(beo_base + beo_AddSP, "AddSP", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_stack_attr_t), &be_node_op_ops);
op_SetSP = new_ir_op(beo_base + beo_SetSP, "SetSP", op_pin_state_pinned, N, oparity_binary, 0, sizeof(be_stack_attr_t), &be_node_op_ops);
op_IncSP = new_ir_op(beo_base + beo_IncSP, "IncSP", op_pin_state_pinned, N, oparity_binary, 0, sizeof(be_stack_attr_t), &be_node_op_ops);
op_RegParams = new_ir_op(beo_base + beo_RegParams, "RegParams", op_pin_state_pinned, N, oparity_zero, 0, sizeof(be_node_attr_t), &be_node_op_ops);
op_StackParam = new_ir_op(beo_base + beo_StackParam, "StackParam", op_pin_state_pinned, N, oparity_unary, 0, sizeof(be_frame_attr_t), &be_node_op_ops);
......@@ -173,6 +170,7 @@ void be_node_init(void) {
set_op_tag(op_Call, &be_node_tag);
set_op_tag(op_Return, &be_node_tag);
set_op_tag(op_AddSP, &be_node_tag);
set_op_tag(op_SetSP, &be_node_tag);
set_op_tag(op_IncSP, &be_node_tag);
set_op_tag(op_RegParams, &be_node_tag);
set_op_tag(op_StackParam, &be_node_tag);
......@@ -181,12 +179,12 @@ void be_node_init(void) {
set_op_tag(op_FrameAddr, &be_node_tag);
}
static void *init_node_attr(ir_node* irn, const arch_register_class_t *cls, ir_graph *irg, int max_reg_data)
static void *init_node_attr(ir_node* irn, int max_reg_data)
{
ir_graph *irg = get_irn_irg(irn);
be_node_attr_t *a = get_irn_attr(irn);
a->max_reg_data = max_reg_data;
a->cls = cls;
a->reg_data = NULL;
if(max_reg_data > 0) {
......@@ -195,8 +193,8 @@ static void *init_node_attr(ir_node* irn, const arch_register_class_t *cls, ir_g
a->reg_data = NEW_ARR_D(be_reg_data_t, get_irg_obstack(irg), max_reg_data);
memset(a->reg_data, 0, max_reg_data * sizeof(a->reg_data[0]));
for(i = 0; i < max_reg_data; ++i) {
a->reg_data[i].req.req.cls = cls;
a->reg_data[i].req.req.type = arch_register_req_type_normal;
a->reg_data[i].req.req.cls = NULL;
a->reg_data[i].req.req.type = arch_register_req_type_none;
}
}
......@@ -241,36 +239,55 @@ be_node_set_irn_reg(const void *_self, ir_node *irn, const arch_register_t *reg)
}
ir_node *be_new_Spill(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *to_spill, ir_node *ctx)
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 *ctx)
{
be_spill_attr_t *a;
ir_node *in[1];
ir_node *in[2];
ir_node *res;
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);
in[0] = frame;
in[1] = to_spill;
res = new_ir_node(NULL, irg, bl, op_Spill, mode_M, 2, in);
a = init_node_attr(res, 2);
a->frame_attr.ent = NULL;
a->frame_attr.offset = 0;
a->spill_ctx = ctx;
be_node_set_reg_class(res, 0, cls_frame);
be_node_set_reg_class(res, 1, cls);
return res;
}
ir_node *be_new_Reload(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *mem)
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 *in[1];
ir_node *in[2];
ir_node *res;
in[0] = mem;
res = new_ir_node(NULL, irg, bl, op_Reload, mode, 1, in);
init_node_attr(res, cls, irg, 1);
in[0] = frame;
in[1] = mem;
res = new_ir_node(NULL, irg, bl, op_Reload, mode, 2, in);
init_node_attr(res, 2);
be_node_set_reg_class(res, 0, cls_frame);
be_node_set_reg_class(res, -1, cls);
return res;
}
ir_node *(be_get_Reload_mem)(const ir_node *irn)
{
assert(be_is_Reload(irn));
return get_irn_n(irn, 1);
}
ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int n, ir_node *in[])
{
int i;
ir_node *irn = new_ir_node(NULL, irg, bl, op_Perm, mode_T, n, in);
init_node_attr(irn, cls, irg, n);
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);
}
return irn;
}
......@@ -281,16 +298,22 @@ ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *b
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);
init_node_attr(res, 1);
be_node_set_reg_class(res, 0, cls);
be_node_set_reg_class(res, OUT_POS(0), 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[])
{
int i;
ir_node *irn;
irn = new_ir_node(NULL, irg, bl, op_Keep, mode_ANY, n, in);
init_node_attr(irn, cls, irg, 0);
init_node_attr(irn, n);
for(i = 0; i < n; ++i) {
be_node_set_reg_class(irn, i, cls);
}
keep_alive(irn);
return irn;
}
......@@ -309,14 +332,14 @@ ir_node *be_new_Call(ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_n
memcpy(&real_in[3], in, n * sizeof(in[0]));
irn = new_ir_node(NULL, irg, bl, op_Call, mode_T, real_n, real_in);
init_node_attr(irn, NULL, irg, (n_outs > real_n ? n_outs : real_n));
init_node_attr(irn, (n_outs > real_n ? n_outs : real_n));
return irn;
}
ir_node *be_new_Return(ir_graph *irg, ir_node *bl, int n, ir_node *in[])
{
ir_node *irn = new_ir_node(NULL, irg, bl, op_Return, mode_X, n, in);
init_node_attr(irn, NULL, irg, n);
init_node_attr(irn, n);
return irn;
}
......@@ -330,13 +353,14 @@ ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_
in[0] = old_sp;
in[1] = mem;
irn = new_ir_node(NULL, irg, bl, op_IncSP, sp->reg_class->mode, 2, in);
a = init_node_attr(irn, sp->reg_class, irg, 1);
a = init_node_attr(irn, 1);
a->dir = dir;
a->offset = offset;
be_node_set_flags(irn, -1, arch_irn_flags_ignore);
/* Set output constraint to stack register. */
be_node_set_reg_class(irn, 0, sp->reg_class);
be_set_constr_single_reg(irn, -1, sp);
be_node_set_irn_reg(NULL, irn, sp);
......@@ -352,18 +376,41 @@ ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_
in[0] = old_sp;
in[1] = op;
irn = new_ir_node(NULL, irg, bl, op_AddSP, sp->reg_class->mode, 2, in);
a = init_node_attr(irn, sp->reg_class, irg, 1);
a = init_node_attr(irn, 1);
be_node_set_flags(irn, -1, arch_irn_flags_ignore);
be_node_set_flags(irn, OUT_POS(0), arch_irn_flags_ignore);
/* Set output constraint to stack register. */
be_set_constr_single_reg(irn, -1, sp);
be_set_constr_single_reg(irn, OUT_POS(0), sp);
be_node_set_irn_reg(NULL, irn, sp);
return 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)
{
be_node_attr_t *a;
ir_node *irn;
ir_node *in[3];
in[0] = mem;
in[1] = old_sp;
in[2] = op;
irn = new_ir_node(NULL, irg, bl, op_SetSP, get_irn_mode(old_sp), 3, in);
a = init_node_attr(irn, 3);
be_node_set_flags(irn, OUT_POS(0), arch_irn_flags_ignore);
/* Set output constraint to stack register. */
be_set_constr_single_reg(irn, OUT_POS(0), sp);
be_node_set_reg_class(irn, 1, sp->reg_class);
be_node_set_reg_class(irn, 2, sp->reg_class);
be_node_set_irn_reg(NULL, irn, sp);
return irn;
}
ir_node *be_new_StackParam(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *frame_pointer, entity *ent)
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, entity *ent)
{
be_frame_attr_t *a;
ir_node *irn;
......@@ -371,8 +418,11 @@ ir_node *be_new_StackParam(const arch_register_class_t *cls, ir_graph *irg, ir_n
in[0] = frame_pointer;
irn = new_ir_node(NULL, irg, bl, op_StackParam, mode, 1, in);
a = init_node_attr(irn, cls, irg, 1);
a = init_node_attr(irn, 1);
a->ent = ent;
be_node_set_reg_class(irn, 0, cls_frame);
be_node_set_reg_class(irn, OUT_POS(0), cls);
return irn;
}
......@@ -382,7 +432,7 @@ ir_node *be_new_RegParams(ir_graph *irg, ir_node *bl, int n_outs)
ir_node *in[1];
irn = new_ir_node(NULL, irg, bl, op_RegParams, mode_T, 0, in);
init_node_attr(irn, NULL, irg, n_outs);
init_node_attr(irn, n_outs);
return irn;
}
......@@ -396,11 +446,11 @@ ir_node *be_new_FrameLoad(const arch_register_class_t *cls_frame, const arch_reg
in[0] = mem;
in[1] = frame;
irn = new_ir_node(NULL, irg, bl, op_FrameLoad, mode_T, 2, in);
a = init_node_attr(irn, NULL, irg, 3);
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, -(pn_Load_res + 1), cls_data);
be_node_set_reg_class(irn, OUT_POS(pn_Load_res), cls_data);
return irn;
}
......@@ -415,7 +465,7 @@ ir_node *be_new_FrameStore(const arch_register_class_t *cls_frame, const arch_re
in[1] = frame;
in[2] = data;
irn = new_ir_node(NULL, irg, bl, op_FrameStore, mode_T, 3, in);
a = init_node_attr(irn, NULL, irg, 3);
a = init_node_attr(irn, 3);
a->ent = ent;
a->offset = 0;
be_node_set_reg_class(irn, 1, cls_frame);
......@@ -431,11 +481,11 @@ ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg,
in[0] = frame;
irn = new_ir_node(NULL, irg, bl, op_FrameAddr, get_irn_mode(frame), 1, in);
a = init_node_attr(irn, NULL, irg, 1);
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, -1, cls_frame);
be_node_set_reg_class(irn, OUT_POS(0), cls_frame);
return irn;
}
......@@ -447,6 +497,7 @@ int be_is_Keep (const ir_node *irn) { return be_get_irn_opcode(irn) ==
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_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 ; }
......@@ -551,6 +602,8 @@ void be_node_set_reg_class(ir_node *irn, int pos, const arch_register_class_t *c
{
be_req_t *r = get_req(irn, pos);
r->req.cls = cls;
if(r->req.type == arch_register_req_type_none)
r->req.type = arch_register_req_type_normal;
}
void be_set_IncSP_offset(ir_node *irn, unsigned offset)
......@@ -628,7 +681,7 @@ static INLINE ir_node *find_a_spill(const ir_node *irn)
assert(be_is_Reload(irn));
set_irg_visited(irg, visited_nr);
return find_a_spill_walker((ir_node *)irn, visited_nr);
return find_a_spill_walker(be_get_Reload_mem(irn), visited_nr);
}
entity *be_get_spill_entity(const ir_node *irn)
......@@ -652,41 +705,53 @@ entity *be_get_spill_entity(const ir_node *irn)
ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn, ir_node *ctx)
{
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 *frame = get_irg_frame(irg);
ir_node *spill;
ir_node *insert;
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);
spill = be_new_Spill(cls, cls_frame, irg, bl, frame, irn, ctx);
/*
* 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.
* is spilled. Also, a spill of a Proj must be after all Projs of the
* same tuple node.
*/
insert = sched_next(irn);
while(is_Phi(insert) && !sched_is_end(insert))
while((is_Phi(insert) || is_Proj(insert)) && !sched_is_end(insert))
insert = sched_next(insert);
/*
* Here's one special case:
* If the spill is in the start block, the spill must be after the frame
* pointer is set up. This is checked here and fixed.
*/
if(bl == get_irg_start_block(irg))
insert = sched_next(frame);
sched_add_before(insert, spill);
return spill;
}
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_reload(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *reloader, ir_mode *mode, ir_node *spill)
{
ir_node *reload;
ir_node *bl = get_nodes_block(irn);
ir_graph *irg = get_irn_irg(bl);
ir_node *bl = get_nodes_block(reloader);
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, irg, bl, mode, spill);
reload = be_new_Reload(cls, cls_frame, irg, bl, frame, spill, mode);
set_irn_n(irn, pos, reload);
sched_add_before(irn, reload);
sched_add_before(reloader, reload);
return reload;
}
......@@ -792,8 +857,12 @@ static entity *be_node_get_frame_entity(const void *self, const ir_node *irn)
return be_get_frame_entity(irn);
}
static void be_node_set_stack_bias(const void *self, ir_node *irn, int bias)
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;
}
}
......@@ -804,7 +873,7 @@ static const arch_irn_ops_if_t be_node_irn_ops_if = {
be_node_classify,
be_node_get_flags,
be_node_get_frame_entity,
be_node_set_stack_bias
be_node_set_frame_offset
};
static const arch_irn_ops_t be_node_irn_ops = {
......@@ -824,7 +893,7 @@ const arch_irn_handler_t be_node_irn_handler = {
static void dump_node_req(FILE *f, be_req_t *req)
{
int i;
unsigned i;
int did_something = 0;
const char *suffix = "";
......@@ -895,10 +964,9 @@ static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason)
if(be_has_frame_entity(irn)) {
be_frame_attr_t *a = (be_frame_attr_t *) at;
if (a->ent) {
unsigned ofs = get_entity_offset_bytes(a->ent);
ir_fprintf(f, "frame entity: %+F offset %x (%d)\n", a->ent, ofs, ofs);
}
if (a->ent)
ir_fprintf(f, "frame entity: %+F offset %x (%d)\n", a->ent, a->offset, a->offset);
}
switch(be_get_irn_opcode(irn)) {
......
......@@ -34,6 +34,7 @@ typedef enum {
beo_Return,
beo_AddSP,
beo_IncSP,
beo_SetSP,
beo_RegParams,
beo_StackParam,
beo_FrameLoad,
......@@ -42,25 +43,31 @@ typedef enum {
beo_Last
} be_opcode_t;
/** Expresses the direction of the stack pointer increment of IncSP nodes. */
typedef enum {
be_stack_dir_along = 0,
be_stack_dir_against = 1
} be_stack_dir_t;
/** Not used yet. */
typedef enum {
be_frame_flag_spill = 1,
be_frame_flag_local = 2,
be_frame_flag_arg = 4
} be_frame_flag_t;
/**
* A "symbolic constant" for the size of the stack frame to use with IncSP nodes.
* It gets back-patched to the real size as soon it is known.
*/
#define BE_STACK_FRAME_SIZE ((unsigned) -1)
void be_node_init(void);
const arch_irn_handler_t be_node_irn_handler;
ir_node *be_new_Spill(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_node *node_to_spill, ir_node *ctx);
ir_node *be_new_Reload(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *spill_node);
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 *node_to_spill, ir_node *ctx);
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 *spill_node, ir_mode *mode);
ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *block, ir_node *in);
ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]);
ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]);
......@@ -73,9 +80,11 @@ ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg,
ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *operand);
ir_node *be_new_SetSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *operand, ir_node *mem);
/**
* Make a stack pointer increase/decrease node.
* @param sp The stack poitner register.
* @param sp The stack pointer register.
* @param irg The graph to insert the node to.
* @param bl The block to insert the node into.
* @param old_sp The node defining the former stack pointer.
......@@ -95,13 +104,17 @@ be_stack_dir_t be_get_IncSP_direction(ir_node *irn);
ir_node *be_new_Call(ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_node *ptr, int n_outs, int n, ir_node *in[]);
ir_node *be_new_Return(ir_graph *irg, ir_node *bl, int n, ir_node *in[]);
ir_node *be_new_StackParam(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, ir_mode *mode, ir_node *frame_pointer, entity *ent);
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, entity *ent);
ir_node *be_new_RegParams(ir_graph *irg, ir_node *bl, int n_out);
ir_node *be_new_NoReg(const arch_register_t *reg, ir_graph *irg, ir_node *bl);
ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn,ir_node *spill_ctx);
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_reload(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *reloader, ir_mode *mode, ir_node *spill);
/**
* Get the backend opcode of a backend node.
* @param irn The node.
* @return The backend opcode.
*/
be_opcode_t be_get_irn_opcode(const ir_node *irn);
int be_is_Spill(const ir_node *irn);
......@@ -114,8 +127,6 @@ int be_is_IncSP(const ir_node *irn);
int be_is_AddSP(const ir_node *irn);
int be_is_RegParams(const ir_node *irn);
int be_is_StackParam(const ir_node *irn);
int be_is_NoReg(const ir_node *irn);
/**
* Get the entity on the stack frame the given node uses.
......@@ -149,8 +160,20 @@ void be_set_constr_single_reg(ir_node *irn, int pos, const arch_register_t *reg)
*/
void be_set_constr_limited(ir_node *irn, int pos, const arch_register_req_t *req);
/**
* Set the flags of a node.
* @param irn The node itself.
* @param pos The position (0..n) for arguments, (-1..-m) for results.
* @param flags The flags to set for that node and position.
*/
void be_node_set_flags(ir_node *irn, int pos, arch_irn_flags_t flags);
/**
* Set the register class of a node.
* @param irn The node itself.
* @param pos The position (0..n) for arguments, (-1..-m) for results.
* @param flags The register class to set for that node and position.
*/
void be_node_set_reg_class(ir_node *irn, int pos, const arch_register_class_t *cls);
/**
......
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