Implement SVE2 BitwiseSelect, BitwiseSelectLeftInverted, BitwiseSelectRightInverted#115775
Merged
kunalspathak merged 4 commits intodotnet:mainfrom May 22, 2025
Merged
Conversation
dotnet-policy-service
bot
added
the
community-contribution
| case NI_Sve2_BitwiseSelectRightInverted: | ||
| // op1: select, op2: left, op3: right | ||
| // Operation is destructive on the 'left' operand. | ||
| if (targetReg != op2Reg) |
Contributor
There was a problem hiding this comment.
this should be op1Reg because 1st operand has RMW semantics, not 2nd.
Member
There was a problem hiding this comment.
@kunalspathak this didn't need addressing because the logic was already correct, right?
The instruction is BSL <Zdn>.D, <Zdn>.D, <Zm>.D, <Zk>.D and the operation is:
CheckSVEEnabled();
constant integer VL = CurrentVL;
bits(VL) operand1 = Z[dn, VL];
bits(VL) operand2 = Z[m, VL];
bits(VL) operand3 = Z[k, VL];
Z[dn, VL] = (operand1 AND operand3) OR (operand2 AND NOT(operand3));
So we end up emitting mov tgt, op2; BSL tgt, op3, op1
Contributor
There was a problem hiding this comment.
right, it was already resolved in #115775 (comment)
kunalspathak
added
the
needs-author-action
dotnet-policy-service
bot
removed
the
needs-author-action
Contributor
Author
Contributor
|
/ba-g failures unrelated |
1 similar comment
Contributor
|
/ba-g failures unrelated |
SimaTian
pushed a commit
that referenced
this pull request
May 27, 2025
…tRightInverted (#115775) * Implement SVE2 BitwiseSelect, BitwiseSelectLeftInverted, BitwiseSelectRightInverted * Add missing PlatformNotSupported lines * Fix the list order
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
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
3 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
@a74nh @kunalspathak
Contributes to #115479