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

cmd/asm: MOVL $x-8(SP) and LEAL x-8(SP) are different #4997

Open
rsc opened this issue Mar 7, 2013 · 5 comments
Open

cmd/asm: MOVL $x-8(SP) and LEAL x-8(SP) are different #4997

rsc opened this issue Mar 7, 2013 · 5 comments
Labels
NeedsInvestigation
Milestone

Comments

@rsc
Copy link
Contributor

@rsc rsc commented Mar 7, 2013

MOVL $x-8(SP), AX assembles to raw LEAL -8(SP), AX.
LEAL x-8(SP), AX assembles to raw LEAL (framesize-8)(SP), AX.
It's a bit confusing that they have different interpretations of x-8(SP).

Same for MOVQ on 6a.

Can wait until after Go 1 because I think I'm the only one who ever uses that form
instead of writing LEAL/LEAQ.
@rsc
Copy link
Contributor Author

@rsc rsc commented Jul 30, 2013

Comment 1:

Labels changed: added go1.2.

@rsc
Copy link
Contributor Author

@rsc rsc commented Sep 6, 2013

Comment 2:

Not important for Go 1.2.

Labels changed: added go1.3maybe, removed go1.2.

@rsc
Copy link
Contributor Author

@rsc rsc commented Dec 4, 2013

Comment 3:

Labels changed: added release-none, removed go1.3maybe.

@rsc
Copy link
Contributor Author

@rsc rsc commented Dec 4, 2013

Comment 4:

Labels changed: added repo-main.

@rsc rsc added this to the Unplanned milestone Apr 10, 2015
@rsc
Copy link
Contributor Author

@rsc rsc commented Jun 8, 2015

Need to check if this is still true after all the shakeup.

@rsc rsc changed the title cmd/6a, cmd/8a: MOVL $x-8(SP) and LEAL x-8(SP) are different cmd/asm: MOVL $x-8(SP) and LEAL x-8(SP) are different Jun 8, 2015
@rsc rsc added the NeedsInvestigation label Sep 26, 2016
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
NeedsInvestigation
Projects
None yet
Development

No branches or pull requests

1 participant