diff options
| -rw-r--r-- | mrbgems/mruby-compiler/core/codegen.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index ac611f422..2d06c703a 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -784,11 +784,12 @@ gen_addsub(codegen_scope *s, uint8_t op, uint16_t dst) } return; } - if (op == OP_SUB) { - if (n == MRB_INT_MIN) goto normal; - n = -n; + if (op == OP_ADD) { + if (mrb_int_add_overflow(n0, n, &n)) goto normal; + } + else { /* OP_SUB */ + if (mrb_int_sub_overflow(n0, n, &n)) goto normal; } - if (mrb_int_add_overflow(n0, n, &n)) goto normal; s->pc = addr_pc(s, data0.addr); gen_int(s, dst, n); } |