Because the name "code_range" is ambiguous with encoding's.
Abbreviations ("crange", and "cr") are also renamed to "loc".
The traditional "code_location" (a pair of lineno and column) is
renamed to "code_position". Abbreviations are also renamed
(first_loc to beg_pos, and last_loc to end_pos).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
"loc" was ambiguous; it might refer both a location and a code range.
This change uses "loc" for a location, and "crange" or "cr" for a code
range.
A location (abbr. loc) is a point in a program and consists of line
number and column number. A code range (abbr. crange and cr) is a range
within a program and consists of a pair of locations which is the first
and the last.
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NODE_PRELUDE contains a `BEGIN` node, a main node, and compile_option.
This node is assumed that it must be located immediately under the root
NODE_SCOPE, but this strange assumption is not so good, IMO.
This change removes the assumtion; it integrates the former two nodes by
block_append, and moves compile_option into rb_ast_body_t.
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This commit removes ISEQ_TYPE_DEFINED_GUARD because it is no longer
needed. And this introduces ISEQ_TYPE_PLAIN which means that the iseq
does nothing special but just wrap an expression. Currently, this is
used for once execution: `/foo#{ bar }baz/o`.
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It is too error-prone to pass IMEMO_IFUNC object as NODE*.
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Currently, VM_INSN_INFO_TABLE_IMPL == 0 means linear search, and
VM_INSN_INFO_TABLE_IMPL == 1 means binary search. I plan to add
succinct bitvector algorithm later.
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This makes TracePoint a bit fast by reducing cache misses of
`get_insn_info_binary_search`.
Also, I plan to use succinct bitvector algorithm for `get_insn_info`
instead of binary search. This change will make it easy.
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This factors rb_iseq_constant_body#insns_info and #insns_info_size to
struct iseq_insn_info.
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* iseq.c (iseq_inspect): show also code range information.
Note that `iseq_inspect` is used only for header of disasm.
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* iseq.h (rb_compile_option_struct): trace instruction is removed so that
remove the trace_instruction compile option.
Don't show warning (just ignore) for Ruby 2.5.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61450 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (iseqw_trace_points): add `RubyVM::InstructionSequence#trace_points`
method for tools which want to manipulate ISeq (and traces).
* test/ruby/test_iseq.rb: add a test for this method.
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* iseq.c (iseqw_each_child): add RubyVM::InstructionSequence#each_child
method for tools which want to manipulate ISeq.
* test/ruby/test_iseq.rb: add a test for this method.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61425 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
My motivation was to improve the output of `ruby --dump=insns xxx.rb`.
When one file has many iseqs, it's hard to find the one I want to read.
So I wanted `iseq_disasm` to show first_lineno. I unified the behavior
of `iseqw_disasm` for consistency.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61423 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (rb_insn_operand_intern): simplified the condition for
local variable names, assume TS_LINDEX and TS_NUM combinations
are only for local variables.
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* iseq.c (rb_insn_operand_intern): show local variable name at
getblockparam/setblockparam too.
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This change introduces get_insn_info_binary_search, which is (should be)
equivalent to the old get_insn_info.
The old get_insn_info is renamed to get_insn_info_linear_search. When
VM_CHECK_MODE > 0, the equivalence is validated at finish_iseq_build.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61353 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2.5's line coverage measurement was about two times slower than 2.4
because of two reasons; (1) vm_trace uses rb_iseq_event_flags (which
takes O(n) currently where n is the length of iseq) to get an event
type, and (2) RUBY_EVENT_LINE uses setjmp to call an event hook.
This change adds a special event for line coverage,
RUBY_EVENT_COVERAGE_LINE, and adds `tracecoverage` instructions where
the event occurs in iseq.
`tracecoverage` instruction calls an event hook without vm_trace.
And, RUBY_EVENT_COVERAGE_LINE is an internal event which does not
use setjmp.
This change also cancells lineno change due to the deletion of trace
instructions [Feature #14104]. So fixes [Bug #14191].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Before this change, coverage.so had failed to measure some multiple-line
code fragments. This is because removing trace instructions (#14104)
changed TracePoint's lineno (new lineno), and coverage counter array was
based on old lineno.
This change initializes coverage counter array based on new lineno.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61313 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm.c: introduce `ruby_vm_event_enabled_flags` which represents which
event flags are enabled before.
* vm_trace.c: do not turn off `trace_` prefix instructions because turn on
overhead is a matter if a program repeats turn on and turn off frequently.
* iseq.c (finish_iseq_build): respect `ruby_vm_event_enabled_flags`.
* vm_insnhelper.c (vm_trace): check `ruby_vm_event_flags` and disable
lazy trace-off technique (do not disable traces).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This change makes coverage use the general event type RUBY_EVENT_LINE
instead of a special event type RUBY_EVENT_COVERAGE.
Just a refactoring.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61043 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This change makes each ISeq keep NODE's code range. This information is
needed for method coverage.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61025 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (rb_iseq_trace_set): simply return immediately if
ISeq::compile_data is available. Not sure why this state
is allowed, but exception during compile (or `ISeq::load`)
can make such states.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60915 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (rb_iseq_trace_set): at this point ISEQ_USE_COMPILE_DATA
should not be set.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60871 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_core.h (rb_iseq_t::aux): add `trace_events` which represents
which events are enabled on this iseq. With this information,
we can skip useless trace-on changes for ISeqs.
* vm_trace.c (RUBY_EVENTS_TRACE_BY_ISEQ): moved to iseq.h and rename it
with ISEQ_TRACE_EVENTS.
* iseq.h: introduce ISEQ_USE_COMPILE_DATA iseq (imemo) flag to represent
COMPILE_DATA is available. In other words, iseq->aux.trace_events is not
available when this flag is set.
* ISEQ_COMPILE_DATA() is changed from a macro.
* ISEQ_COMPILE_DATA_ALLOC() is added.
* ISEQ_COMPILE_DATA_CLEAR() is added.
* iseq.c: use them.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60838 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (rb_iseq_trace_set): remove a wrong assertion.
This assertion checked `insn` is `trace_` prefix instruction
but threaded code `insn` is original code.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60820 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_trace.c (update_global_event_hook): set only when tracing is added.
If tracing was off (event flags are decreased), then ignore them.
Next `trace_` prefix instruction will trace off itself (lazy tracing off).
* vm_insnhelper.c (vm_trace): trace-off for when trace is not needed.
* iseq.c (rb_iseq_trace_set): fix trace-off process (it was never off tracing).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60817 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/instruction.rb: create `trace_` prefix instructions.
* compile.c (ADD_TRACE): do not add `trace` instructions but add
TRACE link elements. TRACE elements will be unified with a next
instruction as instruction information.
* vm_trace.c (update_global_event_hook): modify all ISeqs when
hooks are enabled.
* iseq.c (rb_iseq_trace_set): added to toggle `trace_` instructions.
* vm_insnhelper.c (vm_trace): added.
This function is a body of `trace_` prefix instructions.
* vm_insnhelper.h (JUMP): save PC to a control frame.
* insns.def (trace): removed.
* vm_exec.h (INSN_ENTRY_SIG): add debug output (disabled).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60763 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (rb_iseq_disasm): do not dump repeatedly same iseq which
has been dumped by catch tables.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60735 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* iseq.c (find_line_no): renamed to rb_iseq_line_no().
* vm_backtrace.c (calc_lineno): add a comment why we need to use "pos-1".
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
