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bb8b11e67d
rust/compiler/rustc_codegen_ssa
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bors bb8b11e67d Auto merge of #120718 - saethlin:reasonable-fast-math, r=nnethercote 
Add "algebraic" fast-math intrinsics, based on fast-math ops that cannot return poison

Setting all of LLVM's fast-math flags makes our fast-math intrinsics very dangerous, because some inputs are UB. This set of flags permits common algebraic transformations, but according to the [LangRef](https://llvm.org/docs/LangRef.html#fastmath), only the flags `nnan` (no nans) and `ninf` (no infs) can produce poison.

And this uses the algebraic float ops to fix https://github.com/rust-lang/rust/issues/120720

cc `@orlp`
2024-02-21 09:43:33 +00:00
..
src Auto merge of #120718 - saethlin:reasonable-fast-math, r=nnethercote 2024-02-21 09:43:33 +00:00
Cargo.toml wasm: Store rlib metadata in wasm object files 2024-02-20 09:31:50 -08:00
messages.ftl Turn the "no saved object file in work product" ICE into a translatable fatal error 2024-02-09 20:22:15 -05:00
README.md

README.md

Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.