rust - https://github.com/rust-lang/rust

Age	Commit message (Collapse)	Author	Lines
2025-04-27	Implement the internal feature `cfg_target_has_reliable_f16_f128`	Trevor Gross	-0/+31
	Support for `f16` and `f128` is varied across targets, backends, and backend versions. Eventually we would like to reach a point where all backends support these approximately equally, but until then we have to work around some of these nuances of support being observable. Introduce the `cfg_target_has_reliable_f16_f128` internal feature, which provides the following new configuration gates: * `cfg(target_has_reliable_f16)` * `cfg(target_has_reliable_f16_math)` * `cfg(target_has_reliable_f128)` * `cfg(target_has_reliable_f128_math)` `reliable_f16` and `reliable_f128` indicate that basic arithmetic for the type works correctly. The `_math` versions indicate that anything relying on `libm` works correctly, since sometimes this hits a separate class of codegen bugs. These options match configuration set by the build script at [1]. The logic for LLVM support is duplicated as-is from the same script. There are a few possible updates that will come as a follow up. The config introduced here is not planned to ever become stable, it is only intended to replace the build scripts for `std` tests and `compiler-builtins` that don't have any way to configure based on the codegen backend. MCP: https://github.com/rust-lang/compiler-team/issues/866 Closes: https://github.com/rust-lang/compiler-team/issues/866 [1]: https://github.com/rust-lang/rust/blob/555e1d0386f024a8359645c3217f4b3eae9be042/library/std/build.rs#L84-L186
2024-10-05	move f16/f128 const fn under f16/f128 feature gate	Ralf Jung	-4/+2

2024-10-04	Auto merge of #130157 - eduardosm:stabilize-const_float_classify, r=RalfJung	bors	-2/+0
	Stabilize `const_float_classify` Tracking issue: https://github.com/rust-lang/rust/issues/72505 Also reverts https://github.com/rust-lang/rust/pull/114486 Closes https://github.com/rust-lang/rust/issues/72505 Stabilized const API: ```rust impl f32 { pub const fn is_nan(self) -> bool; pub const fn is_infinite(self) -> bool; pub const fn is_finite(self) -> bool; pub const fn is_subnormal(self) -> bool; pub const fn is_normal(self) -> bool; pub const fn classify(self) -> FpCategory; pub const fn is_sign_positive(self) -> bool; pub const fn is_sign_negative(self) -> bool; } impl f64 { pub const fn is_nan(self) -> bool; pub const fn is_infinite(self) -> bool; pub const fn is_finite(self) -> bool; pub const fn is_subnormal(self) -> bool; pub const fn is_normal(self) -> bool; pub const fn classify(self) -> FpCategory; pub const fn is_sign_positive(self) -> bool; pub const fn is_sign_negative(self) -> bool; } ``` cc `@rust-lang/wg-const-eval` `@rust-lang/libs-api`
2024-09-25	Revert "Avoid invalid NaN lint machine-applicable suggestion in const context"	Eduardo Sánchez Muñoz	-2/+0
	Reverts PR https://github.com/rust-lang/rust/pull/114486 (commit 1305a43d0a0c02cb224ab626745bd94af59c6098)
2024-09-12	move a test to a better location	Ralf Jung	-0/+17

2024-09-12	simplify float::classify logic	Ralf Jung	-27/+75

2024-09-10	enable and extend float-classify test	Ralf Jung	-126/+128

2024-09-10	move float tests into their own dir	Jubilee Young	-0/+248