[PATCH] D93734: [LoopDeletion] Insert an early exit from dead path in loop

Thu Jan 28 15:56:42 PST 2021

jonpa added a comment.

In D93734#2524218 <https://reviews.llvm.org/D93734#2524218>, @jdoerfert wrote:

>> I may be doing something wrong, but D95468 <https://reviews.llvm.org/D95468> did not help very much looking at these numbers it seems...
>
> Maybe outer loops have been skipped and therefore you avoided duplication of outer and inner loops (with D95468 <https://reviews.llvm.org/D95468>). The statistics we have are too coarse grained to exactly pinpoint what happened.

I wonder what loops are those which where "partially unrolled", and which were not. Do the partially unrolled ones get some recognizable name maybe in the header blocks?

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https://reviews.llvm.org/D93734