golang/go

gollvm: invalid argument to -O flag: fast

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#56,484 opened on Oct 29, 2022

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FeatureRequestNeedsInvestigationhelp wanted

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Description

What version of Go are you using (go version)?

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

What did you do?

What did you expect to see?

Successful build

What did you see instead?

Error

Is there any reason why gollvm does not support -Ofast optimization level? For example the gccgo works fine with this option. If there is no reason I can add a support of this feature.

Contributor guide

Research direction
Look at the gollvm compiler code where O flags are parsed and add support for the 'fast' optimization level. The error occurs in llvm goc; trace to the argument parsing logic and implement handling for 'fast'.
Tech stack
go
Domain
tooling
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30