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, 1 insertions, 1 deletions

diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index e55b6791d..7911ecb36 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -1533,7 +1533,7 @@ codegen(codegen_scope *s, node *tree, int val)
         }
         if (pos1) {
           dispatch(s, pos1);
-          genop_1(s, OP_RAISE, exc);
+          genop_1(s, OP_RAISEIF, exc);
         }
       }
       pop();