GitHub (Feb 28 2020 at 23:24): GitHub (Feb 28 2020 at 23:24):alexcrichton transferred Issue #355:
I know that LLVM IR is not really similar with real machine isa, but there's some advantages if we can easily translate Cretonne IR to LLVM IR.
It's well-known that LLVM is awfully slow for "bad" code, while cretonne is fast-by-default but currently lacking deep optimizations. I saw that there's a plan to use cretonne for rustc debug mode. But why should compilers handles two different target IR? If we can generate "pretty good" LLVM IR by running cretonne with
--target=llvm, not just rustc but also whole range of languages whose compiler is written in rust can benefit from it.
Last updated: Oct 23 2024 at 20:03 UTC