The same optimization used for "literal string".freeze
can easily apply to uminus without introducing any
compatibility problems.
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This commit is auto-generated using following command:
svn diff -r57807:57788 include internal.h bignum.c numeric.c compile.c insns.def object.c sprintf.c | patch -p0
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Looking at the source code, FIXABLE tends to be just before LOING2FIX
to check applicability of that operation. Why not try computing first
then check for overflow, which should be optimial.
I also tried the same thing for unsigned types but resulted in slower
execution. It seems RB_POSFIXABLE() is fast enough on modern CPUs.
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* compile.c (ibf_load_code): raise an exception on invalid operand
size. should not use assert() to validate incoming data.
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We can use rb_fstring_cstr in some places to prevent an
intermediate object from being created before deduplication
via rb_fstring.
* compile.c (iseq_compile_each): use rb_fstring_cstr
(rb_insns_name_array): ditto
* load.c (rb_load_internal0): ditto
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* compile.c (compile_branch_condition): trivial optimization of
defined? expression in a branch condition, where a string is not
needed, but just a boolean.
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* compile.c (iseq_setup): bail out if any errors found.
[ruby-core:76531] [Bug #12613]
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* compile.c (append_compile_error): set Qtrue for erred state with
showing the message immediately.
* iseq.c (prepare_iseq_build): make immediate message mode if main
or top level context, not to show the failed path twice in the
first line.
* iseq.c (cleanup_iseq_build): raise default message exception if
immediate message mode.
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* compile.c (iseq_compile_each): yield cannot be in the main
context as well as a top context.
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* compile.c (iseq_compile_each): push fallback nil only when
defined guard is added.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57259 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (defined_expr): omit unnecessary defined guard when
method call has no receiver and no arguments.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57258 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (method_for_self): constify an argument of build
function for VC6.
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* compile.c (iseq_compile_each): stop execution of the current source
by toplevel return. [ruby-core:36785] [Feature #4840]
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A fix-up for r56316. Fix stack consistency error on '1..3; nil'.
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* compile.c (compile_array_): remove m_core_hash_merge_ary which
seems unreachable, and wrong number of arguments.
* vm.c (m_core_hash_merge_ary): removed because it is never used.
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* compile.c (static_literal_node_p): optimize literal nodes for
true, false, and nil, which are static literals in specific
nodes but not in NODE_LIT.
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* compile.c (DECL_ANCHOR, INIT_ANCHOR): make anchor name an array
and unassignable.
* compile.c (iseq_compile_each): ret is never 0.
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toplevel, eval, and load to avoid SEGV when interrupted by SIGINT.
[ruby-core:76327] [Bug #12576]
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* compile.c (iseq_compile_each): turn flip-flop in a not-operator
into a boolean value. fix up r56315
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* compile.c (iseq_compile_each): move numeric literal range
optimization from fixup_nodes() in parse.y.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[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.
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* 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
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.
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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 (iseq_peephole_optimize): remove successive line trace
instructions except for the last.
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* 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
* 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
* compile.c (append_compile_error, compile_bug): pass iseq and get
error info and file from it, not by the thread error info.
* error.c (rb_report_bug_valist): take va_list instead of variadic
arguments, and just report the bug but not abort.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54648 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (iseq_peephole_optimize): should not replace the
current target INSN, not to follow the replaced dangling link in
the caller. [ruby-core:74993] [Bug #11816]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54628 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (new_label_body): initialize bit fields, since
compile_data_alloc does not clear the memory. [Bug #12082]
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