YJIT: specialized codegen for integer right shift (#9564)

* YJIT: specialized codegen for integer right shift

Used in optcarrot. May also be used to write pure-Ruby gems.
No overflow check or fixnum untagging required.

* Update yjit/src/codegen.rs

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

---------

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

1 files changed, 1 insertions, 0 deletions

diff --git a/yjit.rb b/yjit.rb
index 84d4d99b1f..485b4062fa 100644
--- a/yjit.rb
+++ b/yjit.rb
@@ -290,6 +290,7 @@ module RubyVM::YJIT
         print_counters(stats, out: out, prefix: "#{insn}_", prompt: "#{insn} exit reasons:", optional: true)
       end
       print_counters(stats, out: out, prefix: 'lshift_', prompt: 'left shift (opt_ltlt) exit reasons: ')
+      print_counters(stats, out: out, prefix: 'rshift_', prompt: 'right shift (>>) exit reasons: ')
       print_counters(stats, out: out, prefix: 'invalidate_', prompt: 'invalidation reasons: ')
     end