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pass division by zero test

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This commit is contained in:
Andrew Kelley 2017-01-08 22:35:31 -05:00
parent 6caf32195a
commit 8d27a02705
1 changed files with 19 additions and 0 deletions
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19
src/ir.cpp
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@ -6915,6 +6915,25 @@ static int ir_eval_bignum(ConstExprValue *op1_val, ConstExprValue *op2_val,
ConstExprValue *out_val, bool (*bignum_fn)(BigNum *, BigNum *, BigNum *),
TypeTableEntry *type, bool wrapping_op)
{
bool is_int = false;
bool is_float = false;
if (bignum_fn == bignum_div || bignum_fn == bignum_mod) {
if (type->id == TypeTableEntryIdInt ||
type->id == TypeTableEntryIdNumLitInt)
{
is_int = true;
} else if (type->id == TypeTableEntryIdFloat ||
type->id == TypeTableEntryIdNumLitFloat)
{
is_float = true;
}
if ((is_int && op2_val->data.x_bignum.data.x_uint == 0) ||
(is_float && op2_val->data.x_bignum.data.x_float == 0.0))
{
return ErrorDivByZero;
}
}
bool overflow = bignum_fn(&out_val->data.x_bignum, &op1_val->data.x_bignum, &op2_val->data.x_bignum);
if (overflow) {
return ErrorOverflow;