[PATCH] D109821: [ScalarEvolution] Infer loop max trip count from array accesses

[Liren.Peng via Phabricator via llvm-commits]

Peakulorain added a comment.

In D109821#3007802 <https://reviews.llvm.org/D109821#3007802>, @xbolva00 wrote:

> This can be useful also for loopunrollruntime, right?
>
> For example:
>
>   int data[6];
>   
>   int foo(void) {
>     int p = 0;
>     int i = 0;
>     while (data[i++] != -1) // currently LLVM does not unroll this loop 6x like GCC does
>        p += data[i];
>     return p;
>   }

Yes, this will be helpful for loop unroll.


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