1 files changed, 25 insertions, 0 deletions
diff --git a/tool/ruby_vm/views/_leaf_helpers.erb b/tool/ruby_vm/views/_leaf_helpers.erb
index 1735db2196..ed2b5dec49 100644
--- a/tool/ruby_vm/views/_leaf_helpers.erb
+++ b/tool/ruby_vm/views/_leaf_helpers.erb
@@ -10,6 +10,31 @@
 
 #include "iseq.h"
 
+extern const bool rb_vm_insn_leaf_p[];
+
+#ifdef RUBY_VM_INSNS_INFO
+const bool rb_vm_insn_leaf_p[] = {
+% RubyVM::Instructions.each_slice(20) do |insns|
+    <%= insns.map do |insn|
+        if insn.is_a?(RubyVM::BareInstructions)
+          insn.always_leaf? ? '1' : '0'
+        else
+          '0'
+        end
+      end.join(', ')
+    %>,
+% end
+};
+#endif
+
+CONSTFUNC(MAYBE_UNUSED(static bool insn_leaf_p(VALUE insn)));
+
+bool
+insn_leaf_p(VALUE insn)
+{
+    return rb_vm_insn_leaf_p[insn];
+}
+
 // This is used to tell MJIT that this insn would be leaf if CHECK_INTS didn't exist.
 // It should be used only when RUBY_VM_CHECK_INTS is directly written in insns.def.
 static bool leafness_of_check_ints = false;