[AArch64] Combine store (trunc X to <3 x i8>) to sequence of ST1.b #8052
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
(cherry-picked from 8336515)
Extra tests for llvm#78637 llvm#78632 (cherry-picked from ff1cde5)
Extra tests for llvm#78637 llvm#78632 (cherry-picked from e7b4ff8)
Add extra tests with different load/store alignments for llvm#78637. (cherry-picked from 98509c7)
…lvm#78637) Improve codegen for (trunc X to <3 x i8>) by converting it to a sequence of 3 ST1.b, but first converting the truncate operand to either v8i8 or v16i8, extracting the lanes for the truncate results and storing them. At the moment, there are almost no cases in which such vector operations will be generated automatically. The motivating case is non-power-of-2 SLP vectorization: llvm#77790 PR: llvm#78637 (cherry-picked from eb678d8)
Author
|
@swift-ci please test |
Author
|
@swift-ci please test llvm |
Author
|
@swift-ci please test macos |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.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.
Improve codegen for (trunc X to <3 x i8>) by converting it to a sequence
of 3 ST1.b, but first converting the truncate operand to either v8i8 or
v16i8, extracting the lanes for the truncate results and storing them.
At the moment, there are almost no cases in which such vector operations
will be generated automatically. The motivating case is non-power-of-2
SLP vectorization: llvm#77790
PR: llvm#78637
(cherry-picked from eb678d8)