YJIT: Add `--yjit-pause` and `RubyVM::YJIT.resume` (#7609)

* YJIT: Add --yjit-pause and RubyVM::YJIT.resume

This allows booting YJIT in a suspended state. We chose to add a new
command line option as opposed to simply allowing YJIT.resume to work
without any command line option because it allows for combining with
YJIT tuning command line options. It also simpifies implementation.

Paired with Kokubun and Maxime.

* Update yjit.rb

Co-authored-by: Takashi Kokubun <takashikkbn@gmail.com>

---------

Co-authored-by: Alan Wu <XrXr@users.noreply.github.com>
Co-authored-by: Takashi Kokubun <takashikkbn@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/vm.c b/vm.c
index 11fc54095b..31725ae2d0 100644
--- a/vm.c
+++ b/vm.c
@@ -376,7 +376,7 @@ jit_compile(rb_execution_context_t *ec)
     // Increment the ISEQ's call counter
     const rb_iseq_t *iseq = ec->cfp->iseq;
     struct rb_iseq_constant_body *body = ISEQ_BODY(iseq);
-    bool yjit_enabled = rb_yjit_enabled_p();
+    bool yjit_enabled = rb_yjit_compile_new_iseqs();
     if (yjit_enabled || rb_rjit_call_p) {
         body->total_calls++;
     }