Ruby shovel operator (<<) speedup. (#5896)

For string concat, see if compile-time encoding of strings matches.
If so, use simple buffer string concat at runtime. Otherwise, use
encoding-checking string concat.

1 files changed, 13 insertions, 0 deletions

diff --git a/yjit.c b/yjit.c
index 3b4a9907be..b97fcdb62c 100644
--- a/yjit.c
+++ b/yjit.c
@@ -557,6 +557,12 @@ rb_leaf_builtin_function(const rb_iseq_t *iseq)
     return (const struct rb_builtin_function *)iseq->body->iseq_encoded[1];
 }
 
+VALUE
+rb_yjit_str_simple_append(VALUE str1, VALUE str2)
+{
+    return rb_str_cat(str1, RSTRING_PTR(str2), RSTRING_LEN(str2));
+}
+
 struct rb_control_frame_struct *
 rb_get_ec_cfp(rb_execution_context_t *ec)
 {
@@ -692,6 +698,13 @@ rb_RCLASS_ORIGIN(VALUE c)
     return RCLASS_ORIGIN(c);
 }
 
+// Return the string encoding index
+int
+rb_ENCODING_GET(VALUE obj)
+{
+    return RB_ENCODING_GET(obj);
+}
+
 bool
 rb_yjit_multi_ractor_p(void)
 {