Extended `OP_EXCEPT` and `OP_RAISE` (`OP_RAISEIF`) instructions

- `OP_EXCEPT` checks if `mrb->exc` is `NULL`, `MRB_TT_EXCEPTION` or
  `MRB_TT_BREAK`.
  If `mrb->exc` is `NULL`, it will be replaced with `nil`.

- If `OP_RAISE` is `nil`, it does nothing and the immediately
  following instruction is executed (like `OP_NOP`).
  Also, in case of `RBreak` object, it moves to the processing for
  `break`.
  With this change, the instruction name is changed from
  `OP_RAISE` to `OP_RAISEIF`.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/codedump.c b/src/codedump.c
index a19d60708..2225da4ce 100644
--- a/src/codedump.c
+++ b/src/codedump.c
@@ -507,8 +507,8 @@ codedump(mrb_state *mrb, const mrb_irep *irep)
       printf("OP_RESCUE\tR%d\tR%d", a, b);
       print_lv_ab(mrb, irep, a, b);
       break;
-    CASE(OP_RAISE, B);
-      printf("OP_RAISE\tR%d\t\t", a);
+    CASE(OP_RAISEIF, B);
+      printf("OP_RAISEIF\tR%d\t\t", a);
       print_lv_a(mrb, irep, a);
       break;
     CASE(OP_POPERR, B);