bytecodealliance/regalloc2

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A new register allocator

Stars: 266
Forks: 54
Open beginner issues: 0
Indexed issues: 18

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Jul 20, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

18 open issues indexed

Modeling subregister aliasing Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

bytecodealliance/regalloc2#247 · 3 comments · Opened Nov 11, 2025
Conflicting defs and clobbers lead to panic rather than clean error from allocator Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

bytecodealliance/regalloc2#222 · 4 comments · Opened Apr 13, 2025
Replace scratch register with XOR swap Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

bytecodealliance/regalloc2#206 · 2 comments · Opened Dec 21, 2024
Extend the fuzzer to check the debug locations output Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

bytecodealliance/regalloc2#194 · 7 comments · Opened Sep 11, 2024
Fuzzer Not Detecting Incorrect Allocation Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

bytecodealliance/regalloc2#191 · 3 comments · Opened Sep 9, 2024
Adapt regalloc2-tool to work with creduce Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

bytecodealliance/regalloc2#173 · Opened Feb 28, 2024
Include useful diagnostic information in errors Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

bytecodealliance/regalloc2#147 · 1 comment · 1 reaction · Opened Jun 29, 2023
Support instructions that clobber all registers and have non-fixed uses Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

bytecodealliance/regalloc2#145 · 2 comments · Opened Jun 22, 2023
Limit operand to a set of physical registers Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

bytecodealliance/regalloc2#107 · 5 comments · Opened Jan 9, 2023
regalloc2 makes too many memory allocations Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

bytecodealliance/regalloc2#87 · 3 comments · Opened Sep 23, 2022
Alternative regalloc backends Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

bytecodealliance/regalloc2#81 · 2 comments · 3 reactions · Opened Sep 20, 2022
Replace manual use of index newtypes `bundles[bundle.index()]` with `Index` impls and typed `Vec` wrappers Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

bytecodealliance/regalloc2#62 · 10 comments · Opened Jun 27, 2022
Support for cold blocks Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

bytecodealliance/regalloc2#22 · 2 comments · Opened Dec 26, 2021
Conflict between Stack and Reg uses of the same vreg Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

bytecodealliance/regalloc2#14 · 2 comments · Opened Sep 16, 2021
Rematerialization Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

bytecodealliance/regalloc2#8 · 3 comments · Opened Sep 1, 2021
Investigate using Clippy and following lints' recommendations Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

bytecodealliance/regalloc2#6 · Opened Sep 1, 2021
Investigate better bitpacking for Operand and Use Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

bytecodealliance/regalloc2#5 · 5 comments · Opened Sep 1, 2021
Make regalloc2 panic-clean: always return errors when impossible constraints occur Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

bytecodealliance/regalloc2#2 · 1 comment · Opened Sep 1, 2021

bytecodealliance/regalloc2

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