Support mask of broadcast, consts (arange, zeros, ...) #3472
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Adds support for
mask
of broadcast (fixing #2769) and constant operations, as well asmask(squeeze)
and preparations formask(where)
.It introduces four new lax primitives (
iota_p
,eye_p
,delta_p
,tri_p
), all without inputs (= constants). Together withbroadcast_in_dim_p
, each of these requires a target shape (or size) parameter. This shape can be polymorphic during masking. In that case, abstract evaluation of these primitives cannot return aConcreteArray
. To solve this, theirabstract_eval
function is modified to return aShapedArray
with polymorphic shape.mask
andshapecheck
now require omnistaging, which is default since #4038. @mattjjOmnistaging broke
mask(jit)
and thereforemask(where)
andmask(pad)
, see TODOs in tests. Do you already have a plan to fix this?