YJIT: Implement new struct accessors (#5161)

* YJIT: Implement optimized_method_struct_aref

* YJIT: Implement struct_aref without method call

Struct member reads can be compiled directly into a memory read (with
either one or two levels of indirection).

* YJIT: Implement optimized struct aset

* YJIT: Update tests for struct access

* YJIT: Add counters for remaining optimized methods

* Check for INT32_MAX overflow

It only takes a struct with 0x7fffffff/8+1 members. Also add some
cheap compile time checks.

* Add tests for non-embedded struct aref/aset

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

1 files changed, 3 insertions, 0 deletions

diff --git a/yjit.c b/yjit.c
index cef7492e34..33517ca36d 100644
--- a/yjit.c
+++ b/yjit.c
@@ -69,6 +69,9 @@ YJIT_DECLARE_COUNTERS(
     send_zsuper_method,
     send_undef_method,
     send_optimized_method,
+    send_optimized_method_send,
+    send_optimized_method_call,
+    send_optimized_method_block_call,
     send_missing_method,
     send_bmethod,
     send_refined_method,