Pr issue 4 #1040
Merged
Pr issue 4 #1040
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-pick 13173d8 |
tstellar
pushed a commit
that referenced
this pull request
Nov 13, 2025
llvm#166561) This patch enables `aarch64-split-sve-objects` to handle hazard padding in functions that use the SVE CC even when there are no predicate spills/locals. This improves the codegen over the base hazard padding implementation, as rather than placing the padding in the callee-save area, it is placed at the start of the ZPR area. E.g., Current lowering: ``` sub sp, sp, #1040 str x29, [sp, #1024] // 8-byte Folded Spill addvl sp, sp, #-1 str z8, [sp] // 16-byte Folded Spill sub sp, sp, #1040 ``` New lowering: ``` str x29, [sp, #-16]! // 8-byte Folded Spill sub sp, sp, #1024 addvl sp, sp, #-1 str z8, [sp] // 16-byte Folded Spill sub sp, sp, #1040 ``` This also re-enables paired stores for GPRs (as the offsets no longer include the hazard padding).
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
No description provided.