diff options
| -rw-r--r-- | src/codegen.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/codegen.c b/src/codegen.c index df5bc2acf..b0e6f8fd1 100644 --- a/src/codegen.c +++ b/src/codegen.c @@ -170,6 +170,10 @@ genop_peep(codegen_scope *s, mrb_code i, int val) switch (c1) { case OP_MOVE: + if (GETARG_A(i) == GETARG_B(i)) { + /* skip useless OP_MOVE */ + return; + } if (val) break; switch (c0) { case OP_MOVE: |