sysprog21/shecc

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A self-hosting and educational C optimizing compiler

Stars: 1.4k
Forks: 170
Open beginner issues: 0
Indexed issues: 15
Avg merge: 1d 22h
Merged PRs (30d): 10

Dominant language: C
License: BSD-2-Clause
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

15 open issues indexed

Reduce memory usage through smart allocation and data structure optimization Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

sysprog21/shecc#297 · Opened Sep 8, 2025
Combine SSA optimization passes to reduce CFG traversals Open

enhancement

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

sysprog21/shecc#295 · Opened Sep 8, 2025
Replace linear symbol lookup with hash table for O(1) performance Open

enhancement

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

sysprog21/shecc#294 · Opened Sep 8, 2025
Implement register coalescing to eliminate unnecessary moves Open

enhancement

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

sysprog21/shecc#293 · Opened Sep 8, 2025
Improve spill cost calculation with execution frequency and loop depth Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

sysprog21/shecc#292 · Opened Sep 8, 2025
Implement graph coloring register allocator Open

enhancement

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

sysprog21/shecc#291 · Opened Sep 8, 2025
Optimize branch patterns in peephole optimizer Open

enhancement

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

sysprog21/shecc#290 · Opened Sep 8, 2025
Implement redundant load/store elimination in peephole optimizer Open

enhancement

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

sysprog21/shecc#289 · Opened Sep 8, 2025
Implement Partial Redundancy Elimination (PRE) optimization Open

enhancement

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

sysprog21/shecc#288 · Opened Sep 8, 2025
Implement Global Value Numbering (GVN) optimization Open

enhancement

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

sysprog21/shecc#287 · 1 comment · Opened Sep 8, 2025
Implement function inlining optimization in SSA Open

enhancement

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

sysprog21/shecc#285 · Opened Sep 8, 2025
Fix and enable copy propagation optimization Open

bug enhancement

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

sysprog21/shecc#284 · Opened Sep 8, 2025
Implement Loop-Invariant Code Motion (LICM) optimization Open

enhancement

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

sysprog21/shecc#283 · 3 comments · Opened Sep 8, 2025
Register allocator: Stale content after spill operations Open

bug

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

sysprog21/shecc#276 · Opened Sep 8, 2025
Import a GitHub Action for benchmarking purposes Open

sysprog21/shecc#236 · 1 comment · 1 reaction · 1 assignee · Opened Aug 6, 2025

sysprog21/shecc

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