mjit.c: copy inline cache values to MJIT worker

on VM_CHECK_INTS. Letting MJIT worker directly see inline cache which
may be being updated could result in inconsistent IC index and serial.

mjit_worker.c: request the copy job after dequeue, and receive the
result synchronously.

tool/ruby_vm/views/_mjit_compile_ivar.erb: use the copied IC

mjit_compile.c: change the interface to pass is_entries
mjit.h: ditto

=== Optcarrot Benchmark ===
Thankfully this didn't have major performance regression.

$ benchmark-driver benchmark.yml --rbenv 'before::before --disable-gems --jit;after::after --disable-gems --jit' -v --repeat-count 24
before: ruby 2.6.0dev (2018-10-21 trunk 65263) +JIT [x86_64-linux]
after: ruby 2.6.0dev (2018-10-21 trunk 65263) +JIT [x86_64-linux]
last_commit=mjit.c: copy inline cache values to MJIT worker
Calculating -------------------------------------
                             before       after
Optcarrot Lan_Master.nes     85.421      85.454 fps

Comparison:
             Optcarrot Lan_Master.nes
                   after:        85.5 fps
                  before:        85.4 fps - 1.00x  slower

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65275 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/mjit.h b/mjit.h
index d502b906dc..9209389e99 100644
--- a/mjit.h
+++ b/mjit.h
@@ -64,7 +64,7 @@ extern void mjit_add_iseq_to_process(const rb_iseq_t *iseq);
 extern VALUE mjit_wait_call(rb_execution_context_t *ec, struct rb_iseq_constant_body *body);
 RUBY_SYMBOL_EXPORT_END
 
-extern int mjit_compile(FILE *f, const struct rb_iseq_constant_body *body, const char *funcname);
+extern int mjit_compile(FILE *f, const struct rb_iseq_constant_body *body, const char *funcname, union iseq_inline_storage_entry *is_entries);
 extern void mjit_init(struct mjit_options *opts);
 extern void mjit_finish(void);
 extern void mjit_gc_start_hook(void);