Cranelift
Shares rank 5 of 10 compiler infrastructures by recommenders
People recommend it for very fast code generation and JIT compiling, often compared favorably with LLVM. Critics note limited platform support and missing LLVM intrinsics.
People recommend it for very fast code generation and JIT compiling, often compared favorably with LLVM. Critics note limited platform support and missing LLVM intrinsics.
17 people gave an opinion
- recommend it
- 10
- criticize it
- 7
- approval share
- 59%
Recommended in 4 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: not recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 10 people recommend itNeeds 10 or more, met.
- 1.4 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 4 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Very fast code generation
“There are JIT frameworks out there with much faster code-generation than LLVM: Cranelift, GNU Lightning, Mir.”
Comment from 23 Aug 2026 in “JIT Compiling Code in 5μs” “The Cranelift backend is extremely fast.”
Comment from 1 Oct 2026 in “How to speed up the Rust compiler in September 2026” Good fit for JIT compilation
“The reason for it to be killer is that it allows NoiseLang to run as native speeds”
Comment from 8 Jul 2026 in “NoiseLang: Where N = 5 is a Dirac delta” “They could have just used cranelift for jit”
Comment from 9 Mar 2026 in “Show HN: The Mog Programming Language”
What people warn about
Each mark is one comment
Missing LLVM intrinsics and vector support
“it is missing a lot of llvm intrinsics that will just trap if you are trying to use them”
Comment from 1 Oct 2026 in “How to speed up the Rust compiler in September 2026” “They pretty much just support a subset of 128bit vectors with some rare exceptions.”
Comment from 27 Sep 2026 in “The state of SIMD in Rust in 2026” “i also suspect that that cranelift's vector lowering is not ideal”
Comment from 8 Jul 2026 in “NoiseLang: Where N = 5 is a Dirac delta” Development seems stagnant
“The effort seems to have stagnated and if you look into their website, now focused on wasm runtimes.”
Comment from 25 Dec 2025 in “Map: Operator[] Should Be Nodiscard” “Cranelift isn't making that much progress”
Comment from 22 Oct 2026 in “Rust Style Guide” Complex and needs its own backend
“It’s really complex, it has tradeoffs like you mentioned, and it requires its own backend to be maintained.”
Comment from 1 Oct 2026 in “How to speed up the Rust compiler in September 2026” “I haven't found it to be that much simpler”
Comment from 8 Nov 2025 in “Becoming a compiler engineer”
Other compiler infrastructures people recommend
The four most recommended other compiler infrastructures, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| LLVM | 119 | 96 | 55% | 12 | 6 yrs3 owners | — |
| QBE | 16 | 10 | 62% | 9 | — | — |
| EDG C++ front-end | 15 | 3 | 83% | 2 | — | — |
| Roslyn | 11 | 1 | 92% | 8 | — | Approved |
| CraneliftThis page | 10 | 7 | 59% | 4 | — | — |
What people said
16 of the 18 comments that mention it, newest first. Each links to the original comment.
“Cranelift isn't making that much progress”
“so C, Wasm, LLVM IR, Cranelift IR etc are better than Go, Nim, and D in my opinion”
“it is missing a lot of llvm intrinsics that will just trap if you are trying to use them”
“It’s really complex, it has tradeoffs like you mentioned, and it requires its own backend to be maintained.”
“just add subsecond and switch to cranelift”
“Cranelift's biggest blocker for me is that it completely breaks debuggers”
“The Cranelift backend is extremely fast.”
“They pretty much just support a subset of 128bit vectors with some rare exceptions.”
“There are JIT frameworks out there with much faster code-generation than LLVM: Cranelift, GNU Lightning, Mir.”
“Not even cranelift makes a noticeable dent.”
“i also suspect that that cranelift's vector lowering is not ideal”
“The reason for it to be killer is that it allows NoiseLang to run as native speeds”
“Cranelift does not support the wide range of platforms”
“They could have just used cranelift for jit”
“The effort seems to have stagnated and if you look into their website, now focused on wasm runtimes.”
“I haven't found it to be that much simpler”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.