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9b868172
2015 Aug 20
2
loop unrolling introduces conditional branch
Hi Xiangyang,
The algorithm for loop unrolling was changed post-3.5 to do more what you'd
expect. If you use 3.6 or 3.7 you'll likely get better results.
Cheers,
James
On Thu, 20 Aug 2015 at 18:09 Philip Reames via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> On 08/20/2015 07:38 AM, Xiangyang Guo via llvm-dev wrote:
>
> Hi,
>
> I want to use loop unrolling