Reduce conversion of VALUEs to native handles.

Author: aardvark179

CHANGELOG.md

@@ -38,6 +38,7 @@ Performance:
 * Optimize `Dir[]` by sorting entries as they are found and grouping syscalls (#2092, @aardvark179).
 * Reduce memory footprint by tracking `VALUE`s created during C extension init separately (@aardvark179).
 * Rewrote `ArrayEachIteratorNode` to optimize performance for a constant-sized array and reduce specializations to 1 general case (#2587, @MattAlp)
+* Reduce conversion of `VALUE`s to native handle during common operations in C extensions (@aardvark179).
 
 Changes:
 

lib/cext/ABI_version.txt

@@ -1 +1 @@
-12
+13

lib/cext/include/truffleruby/truffleruby.h

@@ -185,13 +185,13 @@ static inline VALUE rb_tr_string_value(VALUE *value_pointer) {
 
 ALWAYS_INLINE(static char *rb_tr_string_value_ptr(VALUE *value_pointer));
 static inline char *rb_tr_string_value_ptr(VALUE *value_pointer) {
-  VALUE string = rb_string_value(value_pointer);
+  VALUE string = rb_tr_string_value(value_pointer);
   return RSTRING_PTR(string);
 }
 
 ALWAYS_INLINE(static char *rb_tr_string_value_cstr(VALUE *value_pointer));
 static inline char *rb_tr_string_value_cstr(VALUE *value_pointer) {
-  VALUE string = rb_string_value(value_pointer);
+  VALUE string = rb_tr_string_value(value_pointer);
   RUBY_CEXT_INVOKE("rb_string_value_cstr_check", string);
   return RSTRING_PTR(string);
 }