Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[SR-9424] String: Faster scalar decoding #51888

Open
milseman mannequin opened this issue Dec 6, 2018 · 2 comments
Open

[SR-9424] String: Faster scalar decoding #51888

milseman mannequin opened this issue Dec 6, 2018 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella

Comments

@milseman
Copy link
Mannequin

milseman mannequin commented Dec 6, 2018

Previous ID SR-9424
Radar rdar://problem/52193396
Original Reporter @milseman
Type Bug
Additional Detail from JIRA
Votes 0
Component/s Standard Library
Labels Bug
Assignee None
Priority Medium

md5: ef5da7b24eee012966bde518e8f3a121

Issue Description:

For non-ASCII scalar decoding, we do a fairly simple branchy byte-by-byte operation. For longer scalars, we could derive greater benefit from operating at higher widths and during a vector-table lookup.
@milseman
Copy link
Mannequin Author

milseman mannequin commented Dec 6, 2018

@swift-ci create

@milseman
Copy link
Mannequin Author

milseman mannequin commented Dec 6, 2018

CC @stephentyrone

swift/stdlib/public/core/UnicodeHelpers.swift

Line 88 in 9694851

internal func _decodeScalar(

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
0 participants