[PATCH] D131028: [AArch64] Fix cost model for FADD vector reduction
Dave Green via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 17 04:11:30 PDT 2022
dmgreen added a comment.
> If you are able to share any of those benchmarks that regress in build- & run-able form, I could also verify that assumption.
For the arm_biquad case, I think it can use any old data as input. The blockSize we usually test with 16, 64 and 256 to give a range of values. numStages shouldn't matter too much, it is the outer loop. Something like 4 should be fine so long as the function is called in a loop to get the total runtime up.
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https://reviews.llvm.org/D131028/new/
https://reviews.llvm.org/D131028
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