X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbenode.c;h=521fdcbb8d47d7407481da65ac1651928cf2c130;hb=4d7a9507baf1737297cd4f7fc91eab209fd5d398;hp=5489b8bc4ef7917c771f920e51a5cbe1da8af95d;hpb=d6382919ff600a373d9ce8c88f030dcfab6104b4;p=libfirm diff --git a/ir/be/benode.c b/ir/be/benode.c index 5489b8bc4..521fdcbb8 100644 --- a/ir/be/benode.c +++ b/ir/be/benode.c @@ -23,12 +23,14 @@ #include "util.h" #include "debug.h" #include "fourcc.h" +#include "bitfiddle.h" #include "irop_t.h" #include "irmode_t.h" #include "irnode_t.h" #include "ircons_t.h" #include "irprintf.h" +#include "irgwalk.h" #include "be_t.h" #include "belive_t.h" @@ -37,11 +39,14 @@ #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, @@ -50,14 +55,7 @@ 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, @@ -68,6 +66,7 @@ typedef enum { typedef struct { arch_register_req_t req; be_req_kind_t kind; + arch_irn_flags_t flags; union { struct { void (*old_limited)(void *ptr, bitset_t *bs); @@ -86,34 +85,48 @@ typedef struct { typedef struct { int max_reg_data; - arch_irn_flags_t flags; - const arch_register_class_t *cls; be_reg_data_t *reg_data; } be_node_attr_t; -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; - typedef struct { be_node_attr_t node_attr; int offset; /**< The offset by which the stack shall be increased/decreased. */ be_stack_dir_t dir; /**< The direction in which the stack shall be modified (along or in the other direction). */ } be_stack_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; -static ir_op *op_Call; -static ir_op *op_IncSP; -static ir_op *op_AddSP; -static ir_op *op_RegParams; -static ir_op *op_StackParam; -static ir_op *op_NoReg; +typedef struct { + be_node_attr_t node_attr; + entity *ent; + int offset; +} be_frame_attr_t; + +typedef struct { + be_node_attr_t node_attr; + entity *ent; +} be_call_attr_t; + +typedef struct { + be_frame_attr_t frame_attr; + ir_node *spill_ctx; /**< The node in whose context this spill was introduced. */ +} be_spill_attr_t; + +ir_op *op_be_Spill; +ir_op *op_be_Reload; +ir_op *op_be_Perm; +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_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_Epilogue; static int beo_base = -1; @@ -141,38 +154,50 @@ void be_node_init(void) { /* Acquire all needed opcodes. */ beo_base = get_next_ir_opcodes(beo_Last - 1); - 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); - op_NoReg = new_ir_op(beo_base + beo_Keep, "NoReg", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops); - op_Call = new_ir_op(beo_base + beo_Keep, "Call", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops); - op_AddSP = new_ir_op(beo_base + beo_Keep, "AddSP", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_stack_attr_t), &be_node_op_ops); - op_IncSP = new_ir_op(beo_base + beo_Keep, "IncSP", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_stack_attr_t), &be_node_op_ops); - op_RegParams = new_ir_op(beo_base + beo_Keep, "RegParams", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops); - op_StackParam = new_ir_op(beo_base + beo_Keep, "StackParam", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_stack_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); - set_op_tag(op_NoReg, &be_node_tag); - set_op_tag(op_Call, &be_node_tag); - set_op_tag(op_AddSP, &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); -} - -static void *init_node_attr(ir_node* irn, const arch_register_class_t *cls, ir_graph *irg, int max_reg_data) + op_be_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_be_Reload = new_ir_op(beo_base + beo_Reload, "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, "Perm", op_pin_state_pinned, N, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops); + op_be_Copy = new_ir_op(beo_base + beo_Copy, "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, "Keep", op_pin_state_pinned, K, oparity_variable, 0, sizeof(be_node_attr_t), &be_node_op_ops); + op_be_CopyKeep = new_ir_op(beo_base + beo_CopyKeep, "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, "Call", op_pin_state_pinned, N, oparity_variable, 0, sizeof(be_call_attr_t), &be_node_op_ops); + op_be_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_be_AddSP = new_ir_op(beo_base + beo_AddSP, "AddSP", 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, "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, "IncSP", op_pin_state_pinned, N, oparity_binary, 0, sizeof(be_stack_attr_t), &be_node_op_ops); + op_be_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_be_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); + op_be_FrameAddr = new_ir_op(beo_base + beo_FrameAddr, "FrameAddr", op_pin_state_pinned, N, oparity_binary, 0, sizeof(be_frame_attr_t), &be_node_op_ops); + op_be_FrameLoad = new_ir_op(beo_base + beo_FrameLoad, "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, "FrameStore", op_pin_state_pinned, N, oparity_any, 0, sizeof(be_frame_attr_t), &be_node_op_ops); + op_be_Epilogue = new_ir_op(beo_base + beo_Epilogue, "Epilogue", op_pin_state_pinned, N, oparity_any, 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_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_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_Epilogue, &be_node_tag); +} + +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); + memset(a, 0, sizeof(get_op_attr_size(get_irn_op(irn)))); a->max_reg_data = max_reg_data; - a->flags = arch_irn_flags_none; - a->cls = cls; a->reg_data = NULL; if(max_reg_data > 0) { @@ -181,8 +206,8 @@ 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; } } @@ -194,7 +219,7 @@ static INLINE 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; } @@ -204,8 +229,14 @@ static int redir_proj(const ir_node **node, int pos) const ir_node *n = *node; if(is_Proj(n)) { + ir_node *irn; + assert(pos == -1 && "Illegal pos for a Proj"); - *node = get_Proj_pred(n); + *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); } @@ -227,35 +258,55 @@ 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); - a->ent = NULL; + 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->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_be_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, be_pos_Reload_mem); +} + ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int n, ir_node *in[]) { - ir_node *irn = new_ir_node(NULL, irg, bl, op_Perm, mode_T, n, in); - init_node_attr(irn, cls, irg, n); + 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); + } + return irn; } @@ -265,17 +316,23 @@ ir_node *be_new_Copy(const arch_register_class_t *cls, ir_graph *irg, ir_node *b 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); + 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); 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); + irn = new_ir_node(NULL, irg, bl, op_be_Keep, mode_ANY, n, in); + init_node_attr(irn, n); + for(i = 0; i < n; ++i) { + be_node_set_reg_class(irn, i, cls); + } keep_alive(irn); return irn; } @@ -293,100 +350,250 @@ ir_node *be_new_Call(ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_n real_in[2] = ptr; 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)); + irn = new_ir_node(NULL, irg, bl, op_be_Call, mode_T, real_n, real_in); + init_node_attr(irn, (n_outs > real_n ? n_outs : real_n)); + return irn; +} + +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; +} + +void be_Call_set_entity(ir_node *call, entity *ent) +{ + be_call_attr_t *a = get_irn_attr(call); + assert(be_is_Call(call)); + a->ent = ent; +} + +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_be_Return, mode_X, n, in); + init_node_attr(irn, n); + return irn; } -ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, unsigned offset, be_stack_dir_t dir) +ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *mem, unsigned offset, be_stack_dir_t dir) { be_stack_attr_t *a; ir_node *irn; ir_node *in[1]; in[0] = old_sp; - irn = new_ir_node(NULL, irg, bl, op_IncSP, sp->reg_class->mode, 1, in); - a = init_node_attr(irn, sp->reg_class, irg, 1); + in[1] = mem; + irn = new_ir_node(NULL, irg, bl, op_be_IncSP, sp->reg_class->mode, 2, in); + a = init_node_attr(irn, 1); a->dir = dir; a->offset = offset; - a->node_attr.flags |= arch_irn_flags_ignore; + 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); return irn; } -ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *op) +ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz) { be_node_attr_t *a; ir_node *irn; - ir_node *in[2]; + ir_node *in[be_pos_AddSP_last]; + + in[be_pos_AddSP_old_sp] = old_sp; + in[be_pos_AddSP_size] = sz; - 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->flags |= arch_irn_flags_ignore; + 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); + + 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_node_set_irn_reg(NULL, irn, sp); + be_set_constr_single_reg(irn, OUT_POS(0), sp); return irn; } -ir_node *be_new_NoReg(const arch_register_t *reg, ir_graph *irg, ir_node *bl) +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[1]; + ir_node *in[3]; + + 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); + + 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); - irn = new_ir_node(NULL, irg, bl, op_NoReg, reg->reg_class->mode, 0, in); - a = init_node_attr(irn, reg->reg_class, irg, 1); - a->flags |= arch_irn_flags_ignore; - be_set_constr_single_reg(irn, -1, reg); - be_node_set_irn_reg(NULL, irn, reg); 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, unsigned offset) +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_stack_attr_t *a; + be_frame_attr_t *a; ir_node *irn; ir_node *in[1]; 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->offset = offset; + irn = new_ir_node(NULL, irg, bl, op_be_StackParam, mode, 1, in); + 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; } ir_node *be_new_RegParams(ir_graph *irg, ir_node *bl, int n_outs) { - be_node_attr_t *a; ir_node *irn; 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); + irn = new_ir_node(NULL, irg, bl, op_be_RegParams, mode_T, 0, in); + init_node_attr(irn, n_outs); + return irn; +} + +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, entity *ent) +{ + be_frame_attr_t *a; + ir_node *irn; + ir_node *in[2]; + + 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, entity *ent) +{ + be_frame_attr_t *a; + ir_node *irn; + ir_node *in[3]; + + 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; +} + +ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, entity *ent) +{ + be_frame_attr_t *a; + ir_node *irn; + ir_node *in[1]; + + 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 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); + 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_new_Epilogue(ir_graph *irg, ir_node *bl, int n, ir_node *in[]) +{ + ir_node *irn; + + irn = new_ir_node(NULL, irg, bl, op_be_Epilogue, mode_T, n, in); + init_node_attr(irn, n); return irn; } -int be_is_Spill (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_Spill ; } -int be_is_Reload (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_Reload ; } -int be_is_Copy (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_Copy ; } -int be_is_Perm (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_Perm ; } -int be_is_Keep (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_Keep ; } -int be_is_Call (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_Call ; } -int be_is_IncSP (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_IncSP ; } -int be_is_AddSP (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_AddSP ; } -int be_is_RegParams (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_RegParams ; } -int be_is_StackParam (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_StackParam ; } -int be_is_NoReg (const ir_node *irn) { return get_irn_be_opcode(irn) == beo_NoReg ; } +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_Perm (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Perm ; } +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_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_Epilogue (const ir_node *irn) { return be_get_irn_opcode(irn) == beo_Epilogue ; } + +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; + } + + return 0; +} + +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; +} static void be_limited(void *data, bitset_t *bs) { @@ -406,9 +613,9 @@ static void be_limited(void *data, bitset_t *bs) } } -void be_set_constr_single_reg(ir_node *irn, int pos, const arch_register_t *reg) +static INLINE be_req_t *get_req(ir_node *irn, int pos) { - int idx = pos < 0 ? -(pos - 1) : pos; + int idx = pos < 0 ? -(pos + 1) : pos; be_node_attr_t *a = get_irn_attr(irn); be_reg_data_t *rd = &a->reg_data[idx]; be_req_t *r = pos < 0 ? &rd->req : &rd->in_req; @@ -417,6 +624,13 @@ void be_set_constr_single_reg(ir_node *irn, int pos, const arch_register_t *reg) assert(!(pos >= 0) || pos < get_irn_arity(irn)); assert(!(pos < 0) || -(pos + 1) <= a->max_reg_data); + return r; +} + +void be_set_constr_single_reg(ir_node *irn, int pos, const arch_register_t *reg) +{ + be_req_t *r = get_req(irn, pos); + r->kind = be_req_kind_single_reg; r->x.single_reg = reg; r->req.limited = be_limited; @@ -427,14 +641,8 @@ 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) { - int idx = pos < 0 ? -(pos - 1) : pos; - be_node_attr_t *a = get_irn_attr(irn); - be_reg_data_t *rd = &a->reg_data[idx]; - be_req_t *r = pos < 0 ? &rd->req : &rd->in_req; + be_req_t *r = get_req(irn, pos); - assert(is_be_node(irn)); - assert(!(pos >= 0) || pos < get_irn_arity(irn)); - assert(!(pos < 0) || -(pos + 1) <= a->max_reg_data); assert(arch_register_req_is(req, limited)); r->kind = be_req_kind_old_limited; @@ -447,6 +655,20 @@ void be_set_constr_limited(ir_node *irn, int pos, const arch_register_req_t *req r->x.old_limited.old_limited_env = req->limited_env; } +void be_node_set_flags(ir_node *irn, int pos, arch_irn_flags_t flags) +{ + be_req_t *r = get_req(irn, pos); + r->flags = flags; +} + +void be_node_set_reg_class(ir_node *irn, int pos, const arch_register_class_t *cls) +{ + 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) { be_stack_attr_t *a = get_irn_attr(irn); @@ -454,7 +676,7 @@ void be_set_IncSP_offset(ir_node *irn, unsigned offset) a->offset = offset; } -unsigned be_get_IncSP_offset(ir_node *irn) +unsigned be_get_IncSP_offset(const ir_node *irn) { be_stack_attr_t *a = get_irn_attr(irn); assert(be_is_IncSP(irn)); @@ -468,7 +690,7 @@ void be_set_IncSP_direction(ir_node *irn, be_stack_dir_t dir) a->dir = dir; } -be_stack_dir_t be_get_IncSP_direction(ir_node *irn) +be_stack_dir_t be_get_IncSP_direction(const ir_node *irn) { be_stack_attr_t *a = get_irn_attr(irn); assert(be_is_IncSP(irn)); @@ -479,27 +701,29 @@ 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; + a->frame_attr.ent = ent; } static ir_node *find_a_spill_walker(ir_node *irn, unsigned visited_nr) { - if(get_irn_visited(irn) < visited_nr) { - set_irn_visited(irn, visited_nr); + unsigned nr = get_irn_visited(irn); + + set_irn_visited(irn, visited_nr); - if(is_Phi(irn)) { - int i, n; + if(is_Phi(irn)) { + int i, n; + if(nr < visited_nr) { 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; } } - - else if(get_irn_be_opcode(irn) == beo_Spill) - return irn; } + else if(be_get_irn_opcode(irn) == beo_Spill) + return irn; + return NULL; } @@ -515,72 +739,112 @@ ir_node *be_get_Spill_context(const ir_node *irn) { * 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) +static INLINE ir_node *find_a_spill(const 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); + return find_a_spill_walker(be_get_Reload_mem(irn), visited_nr); } -entity *be_get_spill_entity(ir_node *irn) +entity *be_get_spill_entity(const ir_node *irn) { int opc = get_irn_opcode(irn); - switch(get_irn_be_opcode(irn)) { + switch(be_get_irn_opcode(irn)) { case beo_Reload: - return be_get_spill_entity(find_a_spill(irn)); + { + ir_node *spill = find_a_spill(irn); + return be_get_spill_entity(spill); + } case beo_Spill: { be_spill_attr_t *a = get_irn_attr(irn); - return a->ent; + return a->frame_attr.ent; } default: assert(0 && "Must give spill/reload node"); + break; } return NULL; } -ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn, ir_node *ctx) +static void link_reload_walker(ir_node *irn, void *data) { - const arch_register_class_t *cls = arch_get_irn_reg_class(arch_env, irn, -1); + ir_node **root = (ir_node **) data; + if(be_is_Reload(irn)) { + set_irn_link(irn, *root); + *root = irn; + } +} + +void be_copy_entities_to_reloads(ir_graph *irg) +{ + ir_node *irn = NULL; + irg_walk_graph(irg, link_reload_walker, NULL, (void *) &irn); + + while(irn) { + be_frame_attr_t *a = get_irn_attr(irn); + entity *ent = be_get_spill_entity(irn); + a->ent = ent; + irn = get_irn_link(irn); + } +} +ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn, ir_node *ctx) +{ 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 the insertion point is already the block, everything is fine, since + * the Spill gets inserted at the end of the block. + */ + if(bl == get_irg_start_block(irg) && insert != bl && sched_comes_after(insert, frame)) + 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 = is_Block(reloader) ? reloader : 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; } @@ -603,7 +867,7 @@ static void *put_in_reg_req(arch_register_req_t *req, const ir_node *irn, int po const be_node_attr_t *a = get_irn_attr(irn); int n = get_irn_arity(irn); - if(pos < get_irn_arity(irn)) + if(pos < get_irn_arity(irn) && pos < a->max_reg_data) memcpy(req, &a->reg_data[pos].in_req, sizeof(req[0])); else { req->type = arch_register_req_type_none; @@ -649,11 +913,11 @@ be_node_get_irn_reg(const void *_self, const ir_node *irn) return a->reg_data[out_pos].reg; } -arch_irn_class_t be_node_classify(const void *_self, const ir_node *irn) +static arch_irn_class_t be_node_classify(const void *_self, const ir_node *irn) { redir_proj((const ir_node **) &irn, -1); - switch(get_irn_be_opcode(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) @@ -667,18 +931,42 @@ arch_irn_class_t be_node_classify(const void *_self, const ir_node *irn) return 0; } -arch_irn_flags_t be_node_get_flags(const void *_self, const ir_node *irn) +static arch_irn_flags_t be_node_get_flags(const void *_self, const ir_node *irn) { - be_node_attr_t *a = get_irn_attr(irn); - return a->flags; + int out_pos; + be_node_attr_t *a; + + out_pos = redir_proj((const ir_node **) &irn, -1); + a = get_irn_attr(irn); + + assert(is_be_node(irn)); + assert(out_pos < a->max_reg_data && "position too high"); + + return a->reg_data[out_pos].req.flags; } +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_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; + } +} + + 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_offset }; static const arch_irn_ops_t be_node_irn_ops = { @@ -695,10 +983,63 @@ const arch_irn_handler_t be_node_irn_handler = { be_node_get_arch_ops }; + +static void dump_node_req(FILE *f, be_req_t *req) +{ + unsigned i; + int did_something = 0; + const char *suffix = ""; + + if(req->flags != arch_irn_flags_none) { + fprintf(f, "flags: "); + for(i = arch_irn_flags_none; i <= log2_ceil(arch_irn_flags_last); ++i) { + if(req->flags & (1 << i)) { + fprintf(f, "%s%s", suffix, arch_irn_flag_str(1 << i)); + suffix = "|"; + } + } + suffix = ", "; + did_something = 1; + } + + if(req->req.cls != 0) { + char tmp[256]; + fprintf(f, suffix); + arch_register_req_format(tmp, sizeof(tmp), &req->req); + fprintf(f, "%s", tmp); + did_something = 1; + } + + if(did_something) + fprintf(f, "\n"); +} + +static void dump_node_reqs(FILE *f, ir_node *irn) +{ + int i; + be_node_attr_t *a = get_irn_attr(irn); + + fprintf(f, "registers: \n"); + for(i = 0; i < a->max_reg_data; ++i) { + be_reg_data_t *rd = &a->reg_data[i]; + if(rd->reg) + fprintf(f, "#%d: %s\n", i, rd->reg->name); + } + + fprintf(f, "in requirements\n"); + for(i = 0; i < a->max_reg_data; ++i) { + dump_node_req(f, &a->reg_data[i].in_req); + } + + fprintf(f, "\nout requirements\n"); + for(i = 0; i < a->max_reg_data; ++i) { + dump_node_req(f, &a->reg_data[i].req); + } +} + static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason) { be_node_attr_t *at = get_irn_attr(irn); - int i; assert(is_be_node(irn)); @@ -712,25 +1053,20 @@ static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason) 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->max_reg_data; ++i) { - const arch_register_t *reg = at->reg_data[i].reg; - fprintf(f, "reg #%d: %s\n", i, reg ? reg->name : "n/a"); + dump_node_reqs(f, irn); + + if(be_has_frame_entity(irn)) { + be_frame_attr_t *a = (be_frame_attr_t *) at; + if (a->ent) + ir_fprintf(f, "frame entity: %+F offset %x (%d)\n", a->ent, a->offset, a->offset); + } - switch(get_irn_be_opcode(irn)) { + switch(be_get_irn_opcode(irn)) { case beo_Spill: { be_spill_attr_t *a = (be_spill_attr_t *) at; - ir_fprintf(f, "spill context: %+F\n", a->spill_ctx); - if (a->ent) { - unsigned ofs = get_entity_offset_bytes(a->ent); - ir_fprintf(f, "spill entity: %+F offset %x (%d)\n", a->ent, ofs, ofs); - } - else { - ir_fprintf(f, "spill entity: n/a\n"); - } } break; @@ -748,18 +1084,35 @@ static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason) return 0; } -void copy_attr(const ir_node *old_node, ir_node *new_node) +/** + * 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_attr); + be_node_attr_t *old_attr = get_irn_attr(old_node); be_node_attr_t *new_attr = get_irn_attr(new_node); + int i; assert(is_be_node(old_node)); assert(is_be_node(new_node)); - memcpy(new_attr, old_attr, old_node->op->attr_size); + memcpy(new_attr, old_attr, get_op_attr_size(get_irn_op(old_node))); + new_attr->reg_data = NULL; + + if(new_attr->max_reg_data > 0) { + new_attr->reg_data = NEW_ARR_D(be_reg_data_t, get_irg_obstack(get_irn_irg(new_node)), new_attr->max_reg_data); + memcpy(new_attr->reg_data, old_attr->reg_data, new_attr->max_reg_data * sizeof(be_reg_data_t)); + + for(i = 0; i < old_attr->max_reg_data; ++i) { + be_req_t *r; - new_attr->reg_data = NEW_ARR_D(be_reg_data_t, get_irg_obstack(get_irn_irg(new_node)), new_attr->max_reg_data); - memcpy(new_attr->reg_data, old_attr->reg_data, new_attr->max_reg_data * sizeof(be_reg_data_t)); + r = &new_attr->reg_data[i].req; + r->req.limited_env = r; + + r = &new_attr->reg_data[i].in_req; + r->req.limited_env = r; + } + } } static const ir_op_ops be_node_op_ops = { @@ -806,7 +1159,7 @@ pset *nodes_live_at(const arch_env_t *arch_env, const arch_register_class_t *cls for(x = pset_first(live); x; x = pset_next(live)) DBG((dbg, LEVEL_1, "\tlive: %+F\n", x)); - if(arch_irn_has_reg_class(arch_env, irn, -1, cls)) + if(arch_irn_consider_in_reg_alloc(arch_env, cls, irn)) pset_remove_ptr(live, irn); for(i = 0, n = get_irn_arity(irn); i < n; ++i) { @@ -856,7 +1209,7 @@ ir_node *insert_Perm_after(const arch_env_t *arch_env, curr = perm; for(i = 0; i < n; ++i) { - ir_node *copies[1]; + ir_node *copies[2]; ir_node *perm_op = get_irn_n(perm, i); const arch_register_t *reg = arch_get_irn_register(arch_env, perm_op); @@ -867,8 +1220,9 @@ ir_node *insert_Perm_after(const arch_env_t *arch_env, sched_add_after(curr, proj); curr = proj; - copies[0] = proj; - be_ssa_constr_single(dom_front, perm_op, 1, copies); + copies[0] = perm_op; + copies[1] = proj; + be_ssa_constr(dom_front, 2, copies); } return perm; }