https://git.ruby-lang.org/ruby.git/commit/?id=3ae8b115c2

From 3ae8b115c2fad3ed71209ff56813fff2e4a8ad3b Mon Sep 17 00:00:00 2001
From: Alan Wu <alanwu@r...>
Date: Mon, 3 Jan 2022 12:43:23 -0500
Subject: YJIT: Fix confusing self reference when initializing variable

---
 yjit_codegen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/yjit_codegen.c b/yjit_codegen.c
index 33c1ec65397..aa352dac700 100644
--- a/yjit_codegen.c
+++ b/yjit_codegen.c
@@ -1330,7 +1330,7 @@ slot_to_local_idx(const rb_iseq_t *iseq, int32_t slot_idx) https://github.com/ruby/ruby/blob/trunk/yjit_codegen.c#L1330
     // FIXME: unsigned to signed cast below can truncate
     int32_t local_table_size = iseq->body->local_table_size;
     int32_t op = slot_idx - VM_ENV_DATA_SIZE;
-    int32_t local_idx = local_idx = local_table_size - op - 1;
+    int32_t local_idx = local_table_size - op - 1;
     RUBY_ASSERT(local_idx >= 0 && local_idx < local_table_size);
     return (uint32_t)local_idx;
 }
-- 
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