зеркало из https://github.com/github/ruby.git
458 строки
9.8 KiB
C
458 строки
9.8 KiB
C
/**********************************************************************
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blockinlining.c -
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$Author$
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Copyright (C) 2004-2007 Koichi Sasada
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**********************************************************************/
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#include "ruby/ruby.h"
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#include "ruby/node.h"
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#include "vm_core.h"
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static VALUE
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iseq_special_block(rb_iseq_t *iseq, void *builder)
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{
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#if OPT_BLOCKINLINING
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VALUE parent = Qfalse;
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VALUE iseqval;
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if (iseq->argc > 1 || iseq->arg_simple == 0) {
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/* argument check */
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return 0;
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}
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if (iseq->cached_special_block_builder) {
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if (iseq->cached_special_block_builder == builder) {
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return iseq->cached_special_block;
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}
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else {
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return 0;
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}
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}
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else {
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iseq->cached_special_block_builder = (void *)1;
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}
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if (iseq->parent_iseq) {
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parent = iseq->parent_iseq->self;
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}
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iseqval = rb_iseq_new_with_bopt(iseq->node, iseq->name, iseq->filename,
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parent, iseq->type,
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GC_GUARDED_PTR(builder));
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if (0) {
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printf("%s\n", RSTRING_PTR(ruby_iseq_disasm(iseqval)));
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}
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iseq->cached_special_block = iseqval;
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iseq->cached_special_block_builder = builder;
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return iseqval;
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#else
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return 0;
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#endif
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}
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static NODE *
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new_block(NODE * head, NODE * tail)
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{
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head = NEW_BLOCK(head);
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tail = NEW_BLOCK(tail);
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head->nd_next = tail;
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return head;
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}
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static NODE *
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new_ary(NODE * head, NODE * tail)
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{
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head = NEW_ARRAY(head);
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head->nd_next = tail;
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return head;
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}
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static NODE *
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new_assign(NODE * lnode, NODE * rhs)
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{
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switch (nd_type(lnode)) {
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case NODE_LASGN:{
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return NEW_NODE(NODE_LASGN, lnode->nd_vid, rhs, lnode->nd_cnt);
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/* NEW_LASGN(lnode->nd_vid, rhs); */
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}
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case NODE_GASGN:{
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return NEW_GASGN(lnode->nd_vid, rhs);
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}
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case NODE_DASGN:{
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return NEW_DASGN(lnode->nd_vid, rhs);
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}
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case NODE_ATTRASGN:{
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NODE *args = 0;
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if (lnode->nd_args) {
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args = NEW_ARRAY(lnode->nd_args->nd_head);
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args->nd_next = NEW_ARRAY(rhs);
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args->nd_alen = 2;
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}
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else {
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args = NEW_ARRAY(rhs);
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}
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return NEW_ATTRASGN(lnode->nd_recv,
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lnode->nd_mid,
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args);
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}
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default:
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rb_bug("unimplemented (block inlining): %s", ruby_node_name(nd_type(lnode)));
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}
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return 0;
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}
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static NODE *
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build_Integer_times_node(rb_iseq_t *iseq, NODE * node, NODE * lnode,
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VALUE param_vars, VALUE local_vars)
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{
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/* Special Block for Integer#times
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{|e, _self|
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_e = e
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while(e < _self)
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e = _e
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redo_point:
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BODY
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next_point:
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_e = _e.succ
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end
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}
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{|e, _self|
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while(e < _self)
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BODY
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next_point:
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e = e.succ
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end
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}
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*/
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ID _self = rb_intern("#_self");
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if (iseq->argc == 0) {
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ID e = rb_intern("#e");
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rb_ary_push(param_vars, ID2SYM(e));
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rb_ary_push(param_vars, ID2SYM(_self));
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iseq->argc += 2;
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node =
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NEW_WHILE(NEW_CALL
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(NEW_DVAR(e), idLT, new_ary(NEW_DVAR(_self), 0)),
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new_block(NEW_OPTBLOCK(node),
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NEW_DASGN(e,
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NEW_CALL(NEW_DVAR(e), idSucc, 0))),
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Qundef);
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}
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else {
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ID _e = rb_intern("#_e");
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ID e = SYM2ID(rb_ary_entry(param_vars, 0));
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NODE *assign;
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rb_ary_push(param_vars, ID2SYM(_self));
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rb_ary_push(local_vars, ID2SYM(_e));
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iseq->argc++;
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if (nd_type(lnode) == NODE_DASGN_CURR) {
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assign = NEW_DASGN(e, NEW_DVAR(_e));
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}
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else {
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assign = new_assign(lnode, NEW_DVAR(_e));
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}
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node =
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new_block(NEW_DASGN(_e, NEW_DVAR(e)),
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NEW_WHILE(NEW_CALL
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(NEW_DVAR(_e), idLT,
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new_ary(NEW_DVAR(_self), 0)),
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new_block(assign,
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new_block(NEW_OPTBLOCK(node),
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NEW_DASGN(_e,
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NEW_CALL
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(NEW_DVAR(_e),
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idSucc, 0)))),
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Qundef));
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}
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return node;
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}
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VALUE
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invoke_Integer_times_special_block(VALUE num)
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{
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rb_thread_t *th = GET_THREAD();
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rb_block_t *orig_block = GC_GUARDED_PTR_REF(th->cfp->lfp[0]);
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if (orig_block && BUILTIN_TYPE(orig_block->iseq) != T_NODE) {
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VALUE tsiseqval = iseq_special_block(orig_block->iseq,
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build_Integer_times_node);
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rb_iseq_t *tsiseq;
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VALUE argv[2], val;
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if (tsiseqval) {
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rb_block_t block = *orig_block;
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GetISeqPtr(tsiseqval, tsiseq);
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block.iseq = tsiseq;
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th->cfp->lfp[0] = GC_GUARDED_PTR(&block);
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argv[0] = INT2FIX(0);
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argv[1] = num;
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val = vm_yield(th, 2, argv);
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if (val == Qundef) {
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return num;
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}
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else {
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return val;
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}
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}
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}
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return Qundef;
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}
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static NODE *
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build_Range_each_node(rb_iseq_t *iseq, NODE * node, NODE * lnode,
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VALUE param_vars, VALUE local_vars, ID mid)
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{
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/* Special Block for Range#each
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{|e, _last|
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_e = e
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while _e < _last
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e = _e
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next_point:
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BODY
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redo_point:
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_e = _e.succ
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end
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}
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{|e, _last|
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while e < _last
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BODY
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redo_point:
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e = e.succ
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end
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}
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*/
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ID _last = rb_intern("#_last");
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if (iseq->argc == 0) {
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ID e = rb_intern("#e");
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rb_ary_push(param_vars, ID2SYM(e));
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rb_ary_push(param_vars, ID2SYM(_last));
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iseq->argc += 2;
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node =
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NEW_WHILE(NEW_CALL(NEW_DVAR(e), mid, new_ary(NEW_DVAR(_last), 0)),
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new_block(NEW_OPTBLOCK(node),
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NEW_DASGN(e,
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NEW_CALL(NEW_DVAR(e), idSucc, 0))),
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Qundef);
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}
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else {
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ID _e = rb_intern("#_e");
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ID e = SYM2ID(rb_ary_entry(param_vars, 0));
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NODE *assign;
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rb_ary_push(param_vars, ID2SYM(_last));
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rb_ary_push(local_vars, ID2SYM(_e));
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iseq->argc++;
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if (nd_type(lnode) == NODE_DASGN_CURR) {
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assign = NEW_DASGN(e, NEW_DVAR(_e));
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}
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else {
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assign = new_assign(lnode, NEW_DVAR(_e));
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}
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node =
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new_block(NEW_DASGN(_e, NEW_DVAR(e)),
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NEW_WHILE(NEW_CALL
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(NEW_DVAR(_e), mid,
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new_ary(NEW_DVAR(_last), 0)),
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new_block(assign,
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new_block(NEW_OPTBLOCK(node),
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NEW_DASGN(_e,
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NEW_CALL
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(NEW_DVAR(_e),
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idSucc, 0)))),
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Qundef));
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}
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return node;
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}
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static NODE *
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build_Range_each_node_LE(rb_iseq_t *iseq, NODE * node, NODE * lnode,
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VALUE param_vars, VALUE local_vars)
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{
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return build_Range_each_node(iseq, node, lnode,
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param_vars, local_vars, idLE);
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}
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static NODE *
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build_Range_each_node_LT(rb_iseq_t *iseq, NODE * node, NODE * lnode,
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VALUE param_vars, VALUE local_vars)
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{
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return build_Range_each_node(iseq, node, lnode,
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param_vars, local_vars, idLT);
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}
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VALUE
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invoke_Range_each_special_block(VALUE range,
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VALUE beg, VALUE end, int excl)
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{
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rb_thread_t *th = GET_THREAD();
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rb_block_t *orig_block = GC_GUARDED_PTR_REF(th->cfp->lfp[0]);
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if (BUILTIN_TYPE(orig_block->iseq) != T_NODE) {
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void *builder =
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excl ? build_Range_each_node_LT : build_Range_each_node_LE;
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VALUE tsiseqval = iseq_special_block(orig_block->iseq, builder);
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rb_iseq_t *tsiseq;
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VALUE argv[2];
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if (tsiseqval) {
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VALUE val;
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rb_block_t block = *orig_block;
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GetISeqPtr(tsiseqval, tsiseq);
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block.iseq = tsiseq;
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th->cfp->lfp[0] = GC_GUARDED_PTR(&block);
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argv[0] = beg;
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argv[1] = end;
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val = vm_yield(th, 2, argv);
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if (val == Qundef) {
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return range;
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}
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else {
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return val;
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}
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}
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}
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return Qundef;
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}
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static NODE *
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build_Array_each_node(rb_iseq_t *iseq, NODE * node, NODE * lnode,
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VALUE param_vars, VALUE local_vars)
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{
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/* Special block for Array#each
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ary.each{|e|
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BODY
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}
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=>
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{|e, _self|
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_i = 0
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while _i < _self.length
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e = _self[_i]
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redo_point:
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BODY
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next_point:
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_i = _i.succ
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end
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}
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ary.each{
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BODY
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}
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=>
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{|_i, _self|
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_i = 0
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while _i < _self.length
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redo_point:
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BODY
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next_point:
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_i = _i.succ
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end
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}
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*/
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ID _self = rb_intern("#_self");
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ID _i = rb_intern("#_i");
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if (iseq->argc == 0) {
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ID _e = rb_intern("#_e");
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rb_ary_push(param_vars, ID2SYM(_e));
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rb_ary_push(param_vars, ID2SYM(_self));
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iseq->argc += 2;
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rb_ary_push(local_vars, ID2SYM(_i));
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node =
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new_block(NEW_DASGN(_i, NEW_LIT(INT2FIX(0))),
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NEW_WHILE(NEW_CALL(NEW_DVAR(_i), idLT,
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new_ary(NEW_CALL
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(NEW_DVAR(_self), idLength,
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0), 0)),
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new_block(NEW_OPTBLOCK(node),
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NEW_DASGN(_i,
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NEW_CALL(NEW_DVAR(_i),
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idSucc, 0))),
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Qundef));
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}
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else {
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ID e = SYM2ID(rb_ary_entry(param_vars, 0));
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NODE *assign;
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rb_ary_push(param_vars, ID2SYM(_self));
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iseq->argc++;
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rb_ary_push(local_vars, ID2SYM(_i));
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if (nd_type(lnode) == NODE_DASGN_CURR) {
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assign = NEW_DASGN(e,
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NEW_CALL(NEW_DVAR(_self), idAREF,
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new_ary(NEW_DVAR(_i), 0)));
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}
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else {
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assign = new_assign(lnode,
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NEW_CALL(NEW_DVAR(_self), idAREF,
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new_ary(NEW_DVAR(_i), 0)));
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}
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node =
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new_block(NEW_DASGN(_i, NEW_LIT(INT2FIX(0))),
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NEW_WHILE(NEW_CALL(NEW_DVAR(_i), idLT,
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new_ary(NEW_CALL
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(NEW_DVAR(_self), idLength,
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0), 0)), new_block(assign,
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new_block
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(NEW_OPTBLOCK
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(node),
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NEW_DASGN
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(_i,
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NEW_CALL
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(NEW_DVAR
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(_i),
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idSucc,
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0)))),
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Qundef));
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}
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return node;
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}
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VALUE
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invoke_Array_each_special_block(VALUE ary)
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{
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rb_thread_t *th = GET_THREAD();
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rb_block_t *orig_block = GC_GUARDED_PTR_REF(th->cfp->lfp[0]);
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if (BUILTIN_TYPE(orig_block->iseq) != T_NODE) {
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VALUE tsiseqval = iseq_special_block(orig_block->iseq,
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build_Array_each_node);
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rb_iseq_t *tsiseq;
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VALUE argv[2];
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if (tsiseqval) {
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VALUE val;
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rb_block_t block = *orig_block;
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GetISeqPtr(tsiseqval, tsiseq);
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block.iseq = tsiseq;
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th->cfp->lfp[0] = GC_GUARDED_PTR(&block);
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argv[0] = 0;
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argv[1] = ary;
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val = vm_yield(th, 2, argv);
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if (val == Qundef) {
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return ary;
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}
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else {
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return val;
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}
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}
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}
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return Qundef;
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}
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