[PATCH] D75128: [AArch64][SVE] Add intrinsics for first-faulting gather loads

Sander de Smalen via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Feb 25 14:02:54 PST 2020


sdesmalen added a comment.

These tests will currently fail when run with expensive checks (or alternatively, when running these tests with ` --verify-machineinstrs`) because the FFR will be undefined.
For the contiguous variants of ldff1, we've worked around this by emitting a Pseudo with `let hasSideEffects = 1` to model the possible changes to the FFR. The Pseudo is eventually expanded to the instruction. See D73025 <https://reviews.llvm.org/D73025> for details.


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  https://reviews.llvm.org/D75128/new/

https://reviews.llvm.org/D75128





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