[llvm] r310481 - [ValueTracking] Honour recursion limit.

[Davide Italiano via llvm-commits]

On Wed, Aug 9, 2017 at 8:19 AM, Davide Italiano <davide at freebsd.org> wrote:
> On Wed, Aug 9, 2017 at 8:13 AM, Davide Italiano via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
>> Author: davide
>> Date: Wed Aug  9 08:13:50 2017
>> New Revision: 310481
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=310481&view=rev
>> Log:
>> [ValueTracking] Honour recursion limit.
>>
>> The recently improved support for `icmp` in ValueTracking
>> (r307304) exposes the fact that `isImplied` condition doesn't
>> really bail out if we hit the recursion limit (and calls
>> `computeKnownBits` which increases the depth and asserts).
>>
>
> Hans, I think this could be considered as a candidate to be backported
> to 5 [cc: Petr & Chad].
>

Also r310492 (which fixes the tests)

--
Davide