Moved this hack mark to an argument to `compile_hash`.
> Bad Hack: temporarily mark hash node with flag so
> compile_hash can compile call differently.
and a related VM improvement.
JIT related commits:
* Code size reduction
* Deduplicate functions on JIT compaction 818d6d3336
* Avoid always inlining cold paths of ivar fcd2576290
* Inline only fast path of rb_class_of b16a2aa938
* Eliminate a call instruction on deopt 61b14bb32b
* Cold path partitioning
* Mark method call slow paths as COLDFUNC 0e5a58b6bf
* Mark vm_stackoverflow as NOINLINE COLDFUNC 9d71373c23
* Create mjit_exec_slowpath and mark it as NOINLINE COLDFUNC 083a17a82a
* Primitive.attr! 'inline' / Integer#zero? 7561db8c00
* Kernel#class 946e5cc668
* (more to come...)
* Properly generate opt_send for cfunc cc 7982dc1dfd
* Optimize exivar access b736ea63bd
* Make JIT-ed leave leaf 151f8be40d
* Inline vm_call_cfunc b9d3ceee8f
VM:
* Enable fastpath on invokesuper 5c27681813
* History: https://speakerdeck.com/k0kubun/ruby-3-samituto?slide=40 (in Japanese)
for opt_* insns.
opt_eq handles rb_obj_equal inside opt_eq, and all other cfunc is
handled by opt_send_without_block. Therefore we can't decide which insn
should be generated by checking whether it's cfunc cc or not.
```
$ benchmark-driver -v --rbenv 'before --jit;after --jit' benchmark/mjit_opt_cc_insns.yml --repeat-count=4
before --jit: ruby 2.8.0dev (2020-06-26T05:21:43Z master 9dbc2294a6) +JIT [x86_64-linux]
after --jit: ruby 2.8.0dev (2020-06-26T06:30:18Z master 75cece1b0b) +JIT [x86_64-linux]
last_commit=Decide JIT-ed insn based on cached cfunc
Calculating -------------------------------------
before --jit after --jit
mjit_nil?(1) 73.878M 74.021M i/s - 40.000M times in 0.541432s 0.540391s
mjit_not(1) 72.635M 74.601M i/s - 40.000M times in 0.550702s 0.536187s
mjit_eq(1, nil) 7.331M 7.445M i/s - 8.000M times in 1.091211s 1.074596s
mjit_eq(nil, 1) 49.450M 64.711M i/s - 8.000M times in 0.161781s 0.123627s
Comparison:
mjit_nil?(1)
after --jit: 74020528.4 i/s
before --jit: 73878185.9 i/s - 1.00x slower
mjit_not(1)
after --jit: 74600882.0 i/s
before --jit: 72634507.6 i/s - 1.03x slower
mjit_eq(1, nil)
after --jit: 7444657.4 i/s
before --jit: 7331304.3 i/s - 1.02x slower
mjit_eq(nil, 1)
after --jit: 64710790.6 i/s
before --jit: 49449507.4 i/s - 1.31x slower
```
to make sure :opt_invokebuiltin_delegate_leave doesn't become
:(trace_)opt_invokebuiltin_delegate.
This is to prevent a warning like
> /tmp/ruby/v3/src/trunk-test/test/ruby/test_jit.rb:618: warning:
'opt_invokebuiltin_delegate_leave' insn is not included in the script.
Actual insns are: opt_invokebuiltin_delegate leave
20200626T033003Z.log.html.gz
```
/home/chkbuild/chkbuild/tmp/build/20200626T033003Z/ruby/test/ruby/test_settracefunc.rb:2299: warning: ambiguous first argument; put parentheses or a space even after `/' operator
```
If :return event is specified for a opt_invokebuiltin_delegate_leave
and leave combination, the instructions should be
opt_invokebuiltin_delegate
trace_return
instructions. To make it, opt_invokebuiltin_delegate_leave
instruction will be changed to opt_invokebuiltin_delegate even if
it is not an event target instruction.
In Ruby 2.7.1 SimpeDelegator cannot be used without requiring `delegate` this PR adds the require to the first example for each class so that devs don't have to hunt for what require to use.
While `spec/bundler` and `spec/bundler/` are treated different
targets by GNU make 4, the same target by GNU make 3. The latter
target, ending with a slash, was to run `test-bundler-parallel`,
instead of `spec/bundler/%`.
only for opt_nil_p and opt_not.
While vm_method_cfunc_is is used for opt_eq too, many fast paths of it
don't call it. So if it's populated, it should generate opt_send,
regardless of cfunc or not. And again, opt_neq isn't relevant due to the
difference in operands.
So opt_nil_p and opt_not are the only variants using vm_method_cfunc_is
like they use.
```
$ benchmark-driver -v --rbenv 'before2 --jit::ruby --jit;before --jit;after --jit' benchmark/mjit_opt_cc_insns.yml --repeat-count=4
before2 --jit: ruby 2.8.0dev (2020-06-22T08:37:37Z master 3238641750) +JIT [x86_64-linux]
before --jit: ruby 2.8.0dev (2020-06-23T01:01:24Z master 9ce2066209) +JIT [x86_64-linux]
after --jit: ruby 2.8.0dev (2020-06-23T06:58:37Z master 17e9df3157) +JIT [x86_64-linux]
last_commit=Avoid generating opt_send with cfunc cc with JIT
Calculating -------------------------------------
before2 --jit before --jit after --jit
mjit_nil?(1) 54.204M 75.536M 75.031M i/s - 40.000M times in 0.737947s 0.529548s 0.533110s
mjit_not(1) 53.822M 70.921M 71.920M i/s - 40.000M times in 0.743195s 0.564007s 0.556171s
mjit_eq(1, nil) 7.367M 6.496M 7.331M i/s - 8.000M times in 1.085882s 1.231470s 1.091327s
Comparison:
mjit_nil?(1)
before --jit: 75536059.3 i/s
after --jit: 75031409.4 i/s - 1.01x slower
before2 --jit: 54204431.6 i/s - 1.39x slower
mjit_not(1)
after --jit: 71920324.1 i/s
before --jit: 70921063.1 i/s - 1.01x slower
before2 --jit: 53821697.6 i/s - 1.34x slower
mjit_eq(1, nil)
before2 --jit: 7367280.0 i/s
after --jit: 7330527.4 i/s - 1.01x slower
before --jit: 6496302.8 i/s - 1.13x slower
```
This commit converts RMoved slots to a doubly linked list. I want to
convert this to a doubly linked list because the read barrier (currently
in development) must remove nodes from the moved list sometimes.
Removing nodes from the list is much easier if the list is doubly
linked. In addition, we can reuse the list manipulation routines.
