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| author | beetrees <b@beetr.ee> | 2024-04-13 01:48:22 +0100 |
|---|---|---|
| committer | beetrees <b@beetr.ee> | 2024-06-01 07:39:13 +0100 |
| commit | 0e1c832dbd08c90497d46978eda7da5acd467c4e (patch) | |
| tree | 420c046d027bf745b66a5bdcdb7130149c6e5f07 | |
| parent | 952becc0bdf814f194a42d34ea78fed792a1f760 (diff) | |
| download | rust-0e1c832dbd08c90497d46978eda7da5acd467c4e.tar.gz rust-0e1c832dbd08c90497d46978eda7da5acd467c4e.zip | |
Update `platform-support.md` to reflect improvements in returning floats on 32-bit x86
| -rw-r--r-- | src/doc/rustc/src/platform-support.md | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 77859956c95..0f2fb3d364d 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -41,10 +41,10 @@ target | notes `x86_64-pc-windows-msvc` | 64-bit MSVC (Windows 10+) `x86_64-unknown-linux-gnu` | 64-bit Linux (kernel 3.2+, glibc 2.17+) -[^x86_32-floats-return-ABI]: Due to limitations of the C ABI, floating-point support on `i686` targets is non-compliant: floating-point return values are passed via an x87 register, so NaN payload bits can be lost. See [issue #114479][x86-32-float-issue]. +[^x86_32-floats-return-ABI]: Due to limitations of the C ABI, floating-point support on `i686` targets is non-compliant: floating-point return values are passed via an x87 register, so NaN payload bits can be lost. Functions with the default Rust ABI are not affected. See [issue #115567][x86-32-float-return-issue]. [77071]: https://github.com/rust-lang/rust/issues/77071 -[x86-32-float-issue]: https://github.com/rust-lang/rust/issues/114479 +[x86-32-float-return-issue]: https://github.com/rust-lang/rust/issues/115567 ## Tier 1 @@ -207,6 +207,8 @@ target | std | notes [^x86_32-floats-x87]: Floating-point support on `i586` targets is non-compliant: the `x87` registers and instructions used for these targets do not provide IEEE-754-compliant behavior, in particular when it comes to rounding and NaN payload bits. See [issue #114479][x86-32-float-issue]. +[x86-32-float-issue]: https://github.com/rust-lang/rust/issues/114479 + [wasi-rename]: https://github.com/rust-lang/compiler-team/issues/607 [Fortanix ABI]: https://edp.fortanix.com/ |