Optimize table length computation with hinting.

10x faster on loop with t[#t+1] = x idiom. Also used by table.insert.
2020-05-27 19:20:44 +02:00
parent b2307c8ad8
commit 1a4ff13117
12 changed files with 135 additions and 82 deletions
--- a/src/lj_opt_sink.c
+++ b/src/lj_opt_sink.c
@@ -78,8 +78,7 @@ static void sink_mark_ins(jit_State *J)
    switch (ir->o) {
    case IR_BASE:
      return;  /* Finished. */
-    case IR_CALLL:  /* IRCALL_lj_tab_len */
-    case IR_ALOAD: case IR_HLOAD: case IR_XLOAD: case IR_TBAR:
+    case IR_ALOAD: case IR_HLOAD: case IR_XLOAD: case IR_TBAR: case IR_ALEN:
      irt_setmark(IR(ir->op1)->t);  /* Mark ref for remaining loads. */
      break;
    case IR_FLOAD: