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Make algebraic functions into `const fn` items. Tracking issue: #136469 This PR makes the algebraic intrinsics and the unstable, algebraic functions of `f16`, `f32`, `f64`, and `f128` into `const fn` items: ```rust impl f16 { pub const fn algebraic_add(self, rhs: f16) -> f16; pub const fn algebraic_sub(self, rhs: f16) -> f16; pub const fn algebraic_mul(self, rhs: f16) -> f16; pub const fn algebraic_div(self, rhs: f16) -> f16; pub const fn algebraic_rem(self, rhs: f16) -> f16; } impl f32 { pub const fn algebraic_add(self, rhs: f32) -> f32; pub const fn algebraic_sub(self, rhs: f32) -> f32; pub const fn algebraic_mul(self, rhs: f32) -> f32; pub const fn algebraic_div(self, rhs: f32) -> f32; pub const fn algebraic_rem(self, rhs: f32) -> f32; } impl f64 { pub const fn algebraic_add(self, rhs: f64) -> f64; pub const fn algebraic_sub(self, rhs: f64) -> f64; pub const fn algebraic_mul(self, rhs: f64) -> f64; pub const fn algebraic_div(self, rhs: f64) -> f64; pub const fn algebraic_rem(self, rhs: f64) -> f64; } impl f128 { pub const fn algebraic_add(self, rhs: f128) -> f128; pub const fn algebraic_sub(self, rhs: f128) -> f128; pub const fn algebraic_mul(self, rhs: f128) -> f128; pub const fn algebraic_div(self, rhs: f128) -> f128; pub const fn algebraic_rem(self, rhs: f128) -> f128; } // core::intrinsics pub const fn fadd_algebraic<T: Copy>(a: T, b: T) -> T; pub const fn fsub_algebraic<T: Copy>(a: T, b: T) -> T; pub const fn fmul_algebraic<T: Copy>(a: T, b: T) -> T; pub const fn fdiv_algebraic<T: Copy>(a: T, b: T) -> T; pub const fn frem_algebraic<T: Copy>(a: T, b: T) -> T; ``` This PR does not preserve the initial behaviour of these functions yielding non-deterministic output under Miri; it is most likely desired to reimplement this behaviour at some point. |
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