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

SubRange join failure #34721

Closed
dstutt opened this issue Nov 21, 2017 · 1 comment
Closed

SubRange join failure #34721

dstutt opened this issue Nov 21, 2017 · 1 comment
Labels
bugzilla Issues migrated from bugzilla llvm:regalloc

Comments

@dstutt
Copy link
Collaborator

dstutt commented Nov 21, 2017

Bugzilla Link 35373
Version trunk
OS All
Attachments Reproducer for subrange join failure

Extended Description

There are some other SubRange join failures reported, but since the ones I've investigated have resulted in different fixes I'm filing a fresh one for this reproducer.

See bug 32773, bug 33152 and bug 33524 for details of the others

The attached reproducer will provoke the problem.

Easiest way to do this is:
llc -march=amdgcn -run-pass simple-register-coalescer -o - regcoal-subrange-join-seg.mir
@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 10, 2021
@arsenm
Copy link
Contributor

arsenm commented Aug 8, 2023

regcoal-subrange-join-seg.mir.txt

Modernized testcase works now

@arsenm arsenm closed this as completed Aug 8, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
bugzilla Issues migrated from bugzilla llvm:regalloc
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
2 participants
@arsenm @dstutt