ruby.git/compile.c, branch v2_4_0_preview2

* vm_core.h: revisit the structure of frame, block and env.

2016-07-28T11:02:30+00:00

  [Bug #12628]

  This patch introduce many changes.

  * Introduce concept of "Block Handler (BH)" to represent
    passed blocks.

  * move rb_control_frame_t::flag to ep[0] (as a special local
    variable). This flags represents not only frame type, but also
    env flags such as escaped.

  * rename `rb_block_t` to `struct rb_block`.

  * Make Proc, Binding and RubyVM::Env objects wb-protected.

  Check [Bug #12628] for more details.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55766 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Coverage on non-positive lines

2016-06-26T23:56:57+00:00

* compile.c (ADD_TRACE): ignore trace instruction on non-positive
  line.
* parse.y (coverage): get rid of ArgumentError when the starting
  line number is not positive.  [ruby-core:76141] [Bug #12517]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* iseq.h (struct iseq_compile_data): use struct rb_id_table

2016-05-14T18:43:11+00:00

  instead of st_table.

* iseq.c (prepare_iseq_build): don't allocate ivar_cache_table
  until it has at least one element.

* iseq.c (compile_data_free): free ivar_cache_table only if it
  is allocated.

* compile.c (get_ivar_ic_value): allocate if the table is not
  allocated yet.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55002 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* compile.c (iseq_compile_each): share InlineCache during same

2016-05-11T12:50:38+00:00

	  instance variable accesses. Reducing memory consumption,
	  rasing cache hit rate and rasing branch prediction hit rate
	  are expected. A part of [Bug #12274].

	* iseq.h (struct iseq_compile_data): introduce instance
	  variable IC table for sharing.

	* iseq.c (prepare_iseq_build, compile_data_free):
	  construct/destruct above table.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: true conditions

2016-04-26T08:38:20+00:00

* 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

compile.c: remove redundant trace insn

2016-04-23T14:12:27+00:00

* compile.c (iseq_peephole_optimize): remove successive line trace
  instructions except for the last.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: instruction ID predicate

2016-04-23T11:43:52+00:00

* compile.c (IS_INSN_ID): add instruction ID predicate macro.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54731 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: ISeq element type predicates

2016-04-23T11:39:41+00:00

* compile.c (IS_INSN, IS_LABEL, IS_ADJUST): add ISeq element type
  predicate macros.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54730 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

compile.c: make SyntaxError after formatting

2016-04-20T02:52:07+00:00

* compile.c (append_compile_error): make SyntaxError instance by
  rb_syntax_error_append on demand after formatting the message.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

refactor syntax error

2016-04-20T01:25:55+00:00

* compile.c (append_compile_error): use rb_syntax_error_append.
* error.c (rb_syntax_error_append): append messages into a
  SyntaxError exception instance.
* parse.y (yycompile0): make new SyntaxError instance in main
  mode, otherwize error_buffer should be a SyntaxError if error
  has occurred.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54650 b2dd03c8-39d4-4d8f-98ff-823fe69b080e