X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbenode.c;h=521fdcbb8d47d7407481da65ac1651928cf2c130;hb=4d7a9507baf1737297cd4f7fc91eab209fd5d398;hp=220a05c94d2c5b0b0c7484560672a889498721d6;hpb=f92968d9536ae0ab9f8a17803fb72ae6fea723c0;p=libfirm diff --git a/ir/be/benode.c b/ir/be/benode.c index 220a05c94..521fdcbb8 100644 --- a/ir/be/benode.c +++ b/ir/be/benode.c @@ -30,6 +30,7 @@ #include "irnode_t.h" #include "ircons_t.h" #include "irprintf.h" +#include "irgwalk.h" #include "be_t.h" #include "belive_t.h" @@ -99,6 +100,11 @@ typedef struct { 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. */ @@ -109,6 +115,7 @@ 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; @@ -119,6 +126,7 @@ 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; @@ -147,13 +155,14 @@ void be_node_init(void) { beo_base = get_next_ir_opcodes(beo_Last - 1); 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_node_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_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_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_stack_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); @@ -161,12 +170,14 @@ void be_node_init(void) { 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); @@ -177,6 +188,7 @@ void be_node_init(void) { 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) @@ -184,6 +196,7 @@ 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->reg_data = NULL; @@ -216,8 +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); } @@ -275,7 +294,7 @@ ir_node *be_new_Reload(const arch_register_class_t *cls, const arch_register_cla ir_node *(be_get_Reload_mem)(const ir_node *irn) { assert(be_is_Reload(irn)); - return get_irn_n(irn, 1); + 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[]) @@ -336,6 +355,20 @@ ir_node *be_new_Call(ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_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); @@ -367,22 +400,22 @@ ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_ 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_be_AddSP, sp->reg_class->mode, 2, in); - a = init_node_attr(irn, 1); + 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, OUT_POS(0), sp); - be_node_set_irn_reg(NULL, irn, sp); return irn; } @@ -489,6 +522,38 @@ ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, 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 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 ; } @@ -504,12 +569,14 @@ int be_is_StackParam (const ir_node *irn) { return be_get_irn_opcode(irn) == 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: @@ -525,10 +592,6 @@ entity *be_get_frame_entity(const ir_node *irn) be_frame_attr_t *a = get_irn_attr(irn); return a->ent; } - - else if(be_get_irn_opcode(irn) == beo_Reload) - return be_get_spill_entity(irn); - return NULL; } @@ -643,22 +706,24 @@ void be_set_Spill_entity(ir_node *irn, entity *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); - if(is_Phi(irn)) { - int i, n; + set_irn_visited(irn, visited_nr); + + 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(be_get_irn_opcode(irn) == beo_Spill) - return irn; } + else if(be_get_irn_opcode(irn) == beo_Spill) + return irn; + return NULL; } @@ -690,7 +755,10 @@ entity *be_get_spill_entity(const ir_node *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); @@ -698,11 +766,34 @@ entity *be_get_spill_entity(const ir_node *irn) } default: assert(0 && "Must give spill/reload node"); + break; } return NULL; } +static void link_reload_walker(ir_node *irn, void *data) +{ + 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); @@ -730,8 +821,10 @@ ir_node *be_spill(const arch_env_t *arch_env, ir_node *irn, ir_node *ctx) * 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)) + if(bl == get_irg_start_block(irg) && insert != bl && sched_comes_after(insert, frame)) insert = sched_next(frame); sched_add_before(insert, spill);