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codegen.c: check zero division before constant folding.

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2021-08-03 16:43:50 +09:00
parent c480ac4457
commit caaa07f2da
1 changed files with 1 additions and 1 deletions
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mrbgems/mruby-compiler/core/codegen.c
+1 -1
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@@ -822,7 +822,7 @@ gen_binop(codegen_scope *s, mrb_sym op, uint16_t dst)
if (n == MRB_INT_MIN) return FALSE;
if (!mrb_num_shift(s->mrb, n0, -n, &n)) return FALSE;
}
else if (op == MRB_OPSYM_2(s->mrb, mod)) {
else if (op == MRB_OPSYM_2(s->mrb, mod) && n != 0) {
mrb_int n1 = n0 % n;
if ((n0 < 0) != (n < 0) && n1 != 0) {
n1 += n;