peephole optimization for LOADNIL before STRCAT; ref #3110

2026-06-08 16:11:16 +00:00 · 2016-02-17 11:03:27 +09:00
parent d8fc09cf92
commit 819c9da8d2
1 changed files with 6 additions and 0 deletions
@@ -339,6 +339,12 @@ genop_peep(codegen_scope *s, mrb_code i, int val)
          return 0;
        }
      }
+      if (c0 == OP_LOADNIL) {
+        if (GETARG_B(i) == GETARG_A(i0)) {
+          s->pc--;
+          return 0;
+        }
+      }
      break;
    case OP_JMPIF:
    case OP_JMPNOT: