On Wed, Sep 12, 2018 at 7:59 PM, Ian Romanick wrote:
> On 09/12/2018 04:33 PM, Ilia Mirkin wrote:
>> On Wed, Sep 12, 2018 at 7:29 PM, Ian Romanick wrote:
>>> From: Ian Romanick
>>>
>>> The optimizer recently added the ability to replace a compare with a
>>> subtraction under certain
On 09/12/2018 04:33 PM, Ilia Mirkin wrote:
> On Wed, Sep 12, 2018 at 7:29 PM, Ian Romanick wrote:
>> From: Ian Romanick
>>
>> The optimizer recently added the ability to replace a compare with a
>> subtraction under certain circumstances. This can fail for integers.
>> For inputs a =
On Wed, Sep 12, 2018 at 7:29 PM, Ian Romanick wrote:
> From: Ian Romanick
>
> The optimizer recently added the ability to replace a compare with a
> subtraction under certain circumstances. This can fail for integers.
> For inputs a = 0x8000, b = 4, int(0x8000) < 4, but
>
From: Ian Romanick
The optimizer recently added the ability to replace a compare with a
subtraction under certain circumstances. This can fail for integers.
For inputs a = 0x8000, b = 4, int(0x8000) < 4, but
int(0x8000) - 4 overflows and results in 0x7ffc. That's not
less than
