this post was submitted on 01 Sep 2023
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rustc_codegen_gcc: Progress Report #25 (blog.antoyo.xyz)
submitted 1 year ago by snaggen@programming.dev to c/rust@programming.dev
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[–] antoyo@lemmy.world 7 points 1 year ago

To be fair, I heard that some bugs for restrict fixed in LLVM were also fixed in GCC as a result of finding them using the LLVM codegen of rustc.

For the 3%, this is in only one particular benchmark. Since I was curious, I compiled my test program with the LLVM codegen and disabled noalias: there's also a 3% performance improvement.