From 2ece86b79c276dafee7e751234292e6aa584f7cc Mon Sep 17 00:00:00 2001 From: Sebastian Hack Date: Tue, 7 Mar 2006 14:49:17 +0000 Subject: [PATCH] Several changes --- ir/be/benode.c | 190 ++++++++++++++++++++++++++++++++--------------- ir/be/benode_t.h | 39 ++++++++-- 2 files changed, 160 insertions(+), 69 deletions(-) diff --git a/ir/be/benode.c b/ir/be/benode.c index f30c8c45b..5f4a84865 100644 --- a/ir/be/benode.c +++ b/ir/be/benode.c @@ -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)) { diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h index 920c942e4..9f9fecf9b 100644 --- a/ir/be/benode_t.h +++ b/ir/be/benode_t.h @@ -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); /** -- 2.20.1