iseq.c: add a map from encoded insn to insn data

This enhances rb_vm_insn_addr2insn which retrieves a decoded insn number
from encoded insn.
The insn data table include not only decoded insn number, but also its
len, trace and non-trace version of encoded insn.
This table can be used to simplify trace instrumentation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64518 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 29 deletions

diff --git a/compile.c b/compile.c
index 0e7153f6e7..71fecf1069 100644
--- a/compile.c
+++ b/compile.c
@@ -746,35 +746,6 @@ rb_iseq_translate_threaded_code(rb_iseq_t *iseq)
     return COMPILE_OK;
 }
 
-#if OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE
-static st_table *addr2insn;
-
-void
-rb_addr2insn_init(void)
-{
-    const void * const *table = rb_vm_get_insns_address_table();
-    st_data_t insn;
-
-    addr2insn = st_init_numtable_with_size(VM_INSTRUCTION_SIZE);
-    for (insn = 0; insn < VM_INSTRUCTION_SIZE; insn++) {
-        st_add_direct(addr2insn, (st_data_t)table[insn], insn);
-    }
-}
-
-int
-rb_vm_insn_addr2insn(const void *addr)
-{
-    st_data_t key = (st_data_t)addr;
-    st_data_t val;
-
-    if (st_lookup(addr2insn, key, &val)) {
-        return (int)val;
-    }
-
-    rb_bug("rb_vm_insn_addr2insn: invalid insn address: %p", addr);
-}
-#endif /* OPT_DIRECT_THREADED_CODE || OPT_CALL_THREADED_CODE */
-
 VALUE *
 rb_iseq_original_iseq(const rb_iseq_t *iseq) /* cold path */
 {