https://git.ruby-lang.org/ruby.git/commit/?id=25eed28483

From 25eed2848344f19385b39daaac8ca5eef79f9466 Mon Sep 17 00:00:00 2001
From: Alan Wu <XrXr@u...>
Date: Fri, 1 Oct 2021 17:46:50 -0400
Subject: Remove unused function

---
 yjit_iface.c | 16 ----------------
 yjit_iface.h |  1 -
 2 files changed, 17 deletions(-)

diff --git a/yjit_iface.c b/yjit_iface.c
index e9e82ea147..8b2ffcff32 100644
--- a/yjit_iface.c
+++ b/yjit_iface.c
@@ -60,22 +60,6 @@ yjit_iseq_pc_at_idx(const rb_iseq_t *iseq, uint32_t insn_idx) https://github.com/ruby/ruby/blob/trunk/yjit_iface.c#L60
     return pc;
 }
 
-// Keep track of mapping from instructions to generated code
-// See comment for rb_encoded_insn_data in iseq.c
-void
-map_addr2insn(void *code_ptr, int insn)
-{
-    const void * const *table = rb_vm_get_insns_address_table();
-    const void * const translated_address = table[insn];
-    st_data_t encoded_insn_data;
-    if (st_lookup(rb_encoded_insn_data, (st_data_t)translated_address, &encoded_insn_data)) {
-        st_insert(rb_encoded_insn_data, (st_data_t)code_ptr, encoded_insn_data);
-    }
-    else {
-        rb_bug("yjit: failed to find info for original instruction while dealing with addr2insn");
-    }
-}
-
 // For debugging. Print the disassembly of an iseq.
 void
 yjit_print_iseq(const rb_iseq_t *iseq)
diff --git a/yjit_iface.h b/yjit_iface.h
index 9eef02c2d9..319e877560 100644
--- a/yjit_iface.h
+++ b/yjit_iface.h
@@ -122,7 +122,6 @@ RUBY_EXTERN struct rb_yjit_runtime_counters yjit_runtime_counters; https://github.com/ruby/ruby/blob/trunk/yjit_iface.h#L122
 
 RUBY_EXTERN struct rb_yjit_options rb_yjit_opts;
 
-void yjit_map_addr2insn(void *code_ptr, int insn);
 VALUE *yjit_iseq_pc_at_idx(const rb_iseq_t *iseq, uint32_t insn_idx);
 int yjit_opcode_at_pc(const rb_iseq_t *iseq, const VALUE *pc);
 void yjit_print_iseq(const rb_iseq_t *iseq);
-- 
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