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compile.c: true conditions

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* compile.c (compile_branch_condition): add more always-true
  conditions to optimize away unreachable branch.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54775 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-04-26 08:38:20 +00:00
parent 931581469f
commit a170b76906
1 changed files with 12 additions and 0 deletions
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12
compile.c
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@ -2784,6 +2784,18 @@ compile_branch_condition(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * cond,
case NODE_LIT: /* NODE_LIT is always not true */
case NODE_TRUE:
case NODE_STR:
case NODE_DSTR:
case NODE_XSTR:
case NODE_DXSTR:
case NODE_DREGX:
case NODE_DREGX_ONCE:
case NODE_DSYM:
case NODE_ARRAY:
case NODE_ZARRAY:
case NODE_HASH:
case NODE_LAMBDA:
case NODE_DEFN:
case NODE_DEFS:
/* printf("useless condition eliminate (%s)\n", ruby_node_name(nd_type(cond))); */
ADD_INSNL(ret, nd_line(cond), jump, then_label);
break;