vm.c: reduce branches for always-set VM fields

thgroup_default, mark_object_ary, load_path, load_path_snapshot,
expanded_load_path, loaded_features, loaded_features_snapshot,
top_self, defined_module_hash are always defined at process startup.

This makes it wasteful to have extra branches in an an effort to
skip the function call to `rb_gc_mark'.

This reduces binary size a small amount on x86-64:

   text	   data	    bss	    dec	    hex	filename
2830738	  22672	  71584	2924994	 2ca1c2	ruby.orig
2830234	  22672	  71584	2924490	 2c9fca	ruby.after

More similar changes coming when I'm bored enough to notice...

* vm.c (rb_vm_mark): reduce branches for always-set VM fields
  (rb_vm_add_root_module): ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51136 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

0 files changed, 0 insertions, 0 deletions