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| author | Sjoerd Meijer <sjoerd.meijer@arm.com> | 2019-11-06 09:58:36 +0000 |
|---|---|---|
| committer | Sjoerd Meijer <sjoerd.meijer@arm.com> | 2019-11-06 10:14:20 +0000 |
| commit | 6c2a4f5ff93e16c3b86c18543e02a193ced2d956 (patch) | |
| tree | d2cb3ef09bdcc0e963f75f4dd5cfa58705d450da /libcxx/test/std/algorithms/alg.nonmodifying/alg.equal/equal_pred.pass.cpp | |
| parent | 9577ee84e638530be7a310c9d50526a36e3c212e (diff) | |
| download | bcm5719-llvm-6c2a4f5ff93e16c3b86c18543e02a193ced2d956.tar.gz bcm5719-llvm-6c2a4f5ff93e16c3b86c18543e02a193ced2d956.zip | |
[TTI][LV] preferPredicateOverEpilogue
We have two ways to steer creating a predicated vector body over creating a
scalar epilogue. To force this, we have 1) a command line option and 2) a
pragma available. This adds a third: a target hook to TargetTransformInfo that
can be queried whether predication is preferred or not, which allows the
vectoriser to make the decision without forcing it.
While this change behaves as a non-functional change for now, it shows the
required TTI plumbing, usage of this new hook in the vectoriser, and the
beginning of an ARM MVE implementation. I will follow up on this with:
- a complete MVE implementation, see D69845.
- a patch to disable this, i.e. we should respect "vector_predicate(disable)"
and its corresponding loophint.
Differential Revision: https://reviews.llvm.org/D69040
Diffstat (limited to 'libcxx/test/std/algorithms/alg.nonmodifying/alg.equal/equal_pred.pass.cpp')
0 files changed, 0 insertions, 0 deletions
