From 5ac2f99954f2bd2d7d1c342abcaa5ffed7418e08 Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Mon, 13 Jan 2025 11:58:17 +0000 Subject: [PATCH 1/4] Shift then mask, rather than mask then shift This may allow for small optimizations with larger float types since `u32` math can be used after shifting. LLVM may be already getting this anyway. --- .../compiler-builtins/libm/src/math/support/float_traits.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/library/compiler-builtins/libm/src/math/support/float_traits.rs b/library/compiler-builtins/libm/src/math/support/float_traits.rs index 647f4f5e251b..2e467111f32f 100644 --- a/library/compiler-builtins/libm/src/math/support/float_traits.rs +++ b/library/compiler-builtins/libm/src/math/support/float_traits.rs @@ -1,6 +1,6 @@ use core::{fmt, mem, ops}; -use super::int_traits::{CastFrom, CastInto, Int, MinInt}; +use super::int_traits::{CastFrom, Int, MinInt}; /// Trait for some basic operations on floats #[allow(dead_code)] @@ -108,7 +108,7 @@ pub trait Float: /// Returns the exponent, not adjusting for bias, not accounting for subnormals or zero. fn exp(self) -> i32 { - ((self.to_bits() & Self::EXP_MASK) >> Self::SIG_BITS).cast() + (u32::cast_from(self.to_bits() >> Self::SIG_BITS) & Self::EXP_MAX).signed() } /// Extract the exponent and adjust it for bias, not accounting for subnormals or zero. From a7cd13b6a32874dd6bc18cdb7e7d7e6bda105adf Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Wed, 22 Jan 2025 07:13:45 +0000 Subject: [PATCH 2/4] Make `Float::exp` return an unsigned integer `exp` does not perform any form of unbiasing, so there isn't any reason it should be signed. Change this. Additionally, add `EPSILON` to the `Float` trait. --- .../libm/crates/libm-test/src/f8_impl.rs | 2 ++ library/compiler-builtins/libm/src/math/generic/sqrt.rs | 2 +- .../libm/src/math/support/float_traits.rs | 8 +++++--- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/library/compiler-builtins/libm/crates/libm-test/src/f8_impl.rs b/library/compiler-builtins/libm/crates/libm-test/src/f8_impl.rs index 299553d202ad..96b78392453f 100644 --- a/library/compiler-builtins/libm/crates/libm-test/src/f8_impl.rs +++ b/library/compiler-builtins/libm/crates/libm-test/src/f8_impl.rs @@ -30,6 +30,8 @@ impl Float for f8 { const INFINITY: Self = Self(0b0_1111_000); const NEG_INFINITY: Self = Self(0b1_1111_000); const NAN: Self = Self(0b0_1111_100); + // FIXME: incorrect values + const EPSILON: Self = Self::ZERO; const PI: Self = Self::ZERO; const NEG_PI: Self = Self::ZERO; const FRAC_PI_2: Self = Self::ZERO; diff --git a/library/compiler-builtins/libm/src/math/generic/sqrt.rs b/library/compiler-builtins/libm/src/math/generic/sqrt.rs index c892f9997241..22ee93f57a3c 100644 --- a/library/compiler-builtins/libm/src/math/generic/sqrt.rs +++ b/library/compiler-builtins/libm/src/math/generic/sqrt.rs @@ -96,7 +96,7 @@ where ix = scaled.to_bits(); match top { Exp::Shifted(ref mut v) => { - *v = scaled.exp().unsigned(); + *v = scaled.exp(); *v = (*v).wrapping_sub(F::SIG_BITS); } Exp::NoShift(()) => { diff --git a/library/compiler-builtins/libm/src/math/support/float_traits.rs b/library/compiler-builtins/libm/src/math/support/float_traits.rs index 2e467111f32f..1abb7c4ded84 100644 --- a/library/compiler-builtins/libm/src/math/support/float_traits.rs +++ b/library/compiler-builtins/libm/src/math/support/float_traits.rs @@ -34,6 +34,7 @@ pub trait Float: const NAN: Self; const MAX: Self; const MIN: Self; + const EPSILON: Self; const PI: Self; const NEG_PI: Self; const FRAC_PI_2: Self; @@ -107,13 +108,13 @@ pub trait Float: } /// Returns the exponent, not adjusting for bias, not accounting for subnormals or zero. - fn exp(self) -> i32 { - (u32::cast_from(self.to_bits() >> Self::SIG_BITS) & Self::EXP_MAX).signed() + fn exp(self) -> u32 { + u32::cast_from(self.to_bits() >> Self::SIG_BITS) & Self::EXP_MAX } /// Extract the exponent and adjust it for bias, not accounting for subnormals or zero. fn exp_unbiased(self) -> i32 { - self.exp() - (Self::EXP_BIAS as i32) + self.exp().signed() - (Self::EXP_BIAS as i32) } /// Returns the significand with no implicit bit (or the "fractional" part) @@ -180,6 +181,7 @@ macro_rules! float_impl { const MAX: Self = -Self::MIN; // Sign bit set, saturated mantissa, saturated exponent with last bit zeroed const MIN: Self = $from_bits(Self::Int::MAX & !(1 << Self::SIG_BITS)); + const EPSILON: Self = <$ty>::EPSILON; const PI: Self = core::$ty::consts::PI; const NEG_PI: Self = -Self::PI; From c00f1191666e6803fdd61eca2ac5f0cb07360656 Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Mon, 13 Jan 2025 11:17:03 +0000 Subject: [PATCH 3/4] Add a generic version of `ceil` Additionally, make use of this version to implement `ceil` and `ceilf`. Musl's `ceilf` algorithm seems to work better for all versions of the functions. Testing with a generic version of musl's `ceil` routine showed the following regressions: icount::icount_bench_ceil_group::icount_bench_ceil logspace:setup_ceil() Performance has regressed: Instructions (14064 > 13171) regressed by +6.78005% (>+5.00000) Baselines: softfloat|softfloat Instructions: 14064|13171 (+6.78005%) [+1.06780x] L1 Hits: 16697|15803 (+5.65715%) [+1.05657x] L2 Hits: 0|0 (No change) RAM Hits: 7|8 (-12.5000%) [-1.14286x] Total read+write: 16704|15811 (+5.64797%) [+1.05648x] Estimated Cycles: 16942|16083 (+5.34104%) [+1.05341x] icount::icount_bench_ceilf_group::icount_bench_ceilf logspace:setup_ceilf() Performance has regressed: Instructions (14732 > 9901) regressed by +48.7931% (>+5.00000) Baselines: softfloat|softfloat Instructions: 14732|9901 (+48.7931%) [+1.48793x] L1 Hits: 17494|12611 (+38.7202%) [+1.38720x] L2 Hits: 0|0 (No change) RAM Hits: 6|6 (No change) Total read+write: 17500|12617 (+38.7018%) [+1.38702x] Estimated Cycles: 17704|12821 (+38.0860%) [+1.38086x] --- .../compiler-builtins/libm/src/math/ceil.rs | 42 +-------- .../compiler-builtins/libm/src/math/ceilf.rs | 51 +---------- .../libm/src/math/generic/ceil.rs | 87 +++++++++++++++++++ .../libm/src/math/generic/mod.rs | 2 + 4 files changed, 91 insertions(+), 91 deletions(-) create mode 100644 library/compiler-builtins/libm/src/math/generic/ceil.rs diff --git a/library/compiler-builtins/libm/src/math/ceil.rs b/library/compiler-builtins/libm/src/math/ceil.rs index 398bfee47a21..535f434ac243 100644 --- a/library/compiler-builtins/libm/src/math/ceil.rs +++ b/library/compiler-builtins/libm/src/math/ceil.rs @@ -1,8 +1,3 @@ -#![allow(unreachable_code)] -use core::f64; - -const TOINT: f64 = 1. / f64::EPSILON; - /// Ceil (f64) /// /// Finds the nearest integer greater than or equal to `x`. @@ -15,40 +10,5 @@ pub fn ceil(x: f64) -> f64 { args: x, } - let u: u64 = x.to_bits(); - let e: i64 = ((u >> 52) & 0x7ff) as i64; - let y: f64; - - if e >= 0x3ff + 52 || x == 0. { - return x; - } - // y = int(x) - x, where int(x) is an integer neighbor of x - y = if (u >> 63) != 0 { x - TOINT + TOINT - x } else { x + TOINT - TOINT - x }; - // special case because of non-nearest rounding modes - if e < 0x3ff { - force_eval!(y); - return if (u >> 63) != 0 { -0. } else { 1. }; - } - if y < 0. { x + y + 1. } else { x + y } -} - -#[cfg(test)] -mod tests { - use super::*; - - #[test] - fn sanity_check() { - assert_eq!(ceil(1.1), 2.0); - assert_eq!(ceil(2.9), 3.0); - } - - /// The spec: https://en.cppreference.com/w/cpp/numeric/math/ceil - #[test] - fn spec_tests() { - // Not Asserted: that the current rounding mode has no effect. - assert!(ceil(f64::NAN).is_nan()); - for f in [0.0, -0.0, f64::INFINITY, f64::NEG_INFINITY].iter().copied() { - assert_eq!(ceil(f), f); - } - } + super::generic::ceil(x) } diff --git a/library/compiler-builtins/libm/src/math/ceilf.rs b/library/compiler-builtins/libm/src/math/ceilf.rs index 9e8e78e3e532..66d44189c921 100644 --- a/library/compiler-builtins/libm/src/math/ceilf.rs +++ b/library/compiler-builtins/libm/src/math/ceilf.rs @@ -1,5 +1,3 @@ -use core::f32; - /// Ceil (f32) /// /// Finds the nearest integer greater than or equal to `x`. @@ -11,52 +9,5 @@ pub fn ceilf(x: f32) -> f32 { args: x, } - let mut ui = x.to_bits(); - let e = (((ui >> 23) & 0xff).wrapping_sub(0x7f)) as i32; - - if e >= 23 { - return x; - } - if e >= 0 { - let m = 0x007fffff >> e; - if (ui & m) == 0 { - return x; - } - force_eval!(x + f32::from_bits(0x7b800000)); - if ui >> 31 == 0 { - ui += m; - } - ui &= !m; - } else { - force_eval!(x + f32::from_bits(0x7b800000)); - if ui >> 31 != 0 { - return -0.0; - } else if ui << 1 != 0 { - return 1.0; - } - } - f32::from_bits(ui) -} - -// PowerPC tests are failing on LLVM 13: https://github.com/rust-lang/rust/issues/88520 -#[cfg(not(target_arch = "powerpc64"))] -#[cfg(test)] -mod tests { - use super::*; - - #[test] - fn sanity_check() { - assert_eq!(ceilf(1.1), 2.0); - assert_eq!(ceilf(2.9), 3.0); - } - - /// The spec: https://en.cppreference.com/w/cpp/numeric/math/ceil - #[test] - fn spec_tests() { - // Not Asserted: that the current rounding mode has no effect. - assert!(ceilf(f32::NAN).is_nan()); - for f in [0.0, -0.0, f32::INFINITY, f32::NEG_INFINITY].iter().copied() { - assert_eq!(ceilf(f), f); - } - } + super::generic::ceil(x) } diff --git a/library/compiler-builtins/libm/src/math/generic/ceil.rs b/library/compiler-builtins/libm/src/math/generic/ceil.rs new file mode 100644 index 000000000000..d16d0657279e --- /dev/null +++ b/library/compiler-builtins/libm/src/math/generic/ceil.rs @@ -0,0 +1,87 @@ +/* SPDX-License-Identifier: MIT */ +/* origin: musl src/math/ceilf.c */ + +//! Generic `ceil` algorithm. +//! +//! Note that this uses the algorithm from musl's `ceilf` rather than `ceil` or `ceill` because +//! performance seems to be better (based on icount) and it does not seem to experience rounding +//! errors on i386. + +use super::super::{Float, Int, IntTy, MinInt}; + +pub fn ceil(x: F) -> F { + let zero = IntTy::::ZERO; + + let mut ix = x.to_bits(); + let e = x.exp_unbiased(); + + // If the represented value has no fractional part, no truncation is needed. + if e >= F::SIG_BITS as i32 { + return x; + } + + if e >= 0 { + // |x| >= 1.0 + + let m = F::SIG_MASK >> e.unsigned(); + if (ix & m) == zero { + // Portion to be masked is already zero; no adjustment needed. + return x; + } + + // Otherwise, raise an inexact exception. + force_eval!(x + F::MAX); + if x.is_sign_positive() { + ix += m; + } + ix &= !m; + } else { + // |x| < 1.0, raise an inexact exception since truncation will happen (unless x == 0). + force_eval!(x + F::MAX); + + if x.is_sign_negative() { + // -1.0 < x <= -0.0; rounding up goes toward -0.0. + return F::NEG_ZERO; + } else if ix << 1 != zero { + // 0.0 < x < 1.0; rounding up goes toward +1.0. + return F::ONE; + } + } + + F::from_bits(ix) +} + +#[cfg(test)] +mod tests { + use super::*; + + /// Test against https://en.cppreference.com/w/cpp/numeric/math/ceil + fn spec_test() { + // Not Asserted: that the current rounding mode has no effect. + for f in [F::ZERO, F::NEG_ZERO, F::INFINITY, F::NEG_INFINITY].iter().copied() { + assert_biteq!(ceil(f), f); + } + } + + #[test] + fn sanity_check_f32() { + assert_eq!(ceil(1.1f32), 2.0); + assert_eq!(ceil(2.9f32), 3.0); + } + + #[test] + fn spec_tests_f32() { + spec_test::(); + } + + #[test] + fn sanity_check_f64() { + assert_eq!(ceil(1.1f64), 2.0); + assert_eq!(ceil(2.9f64), 3.0); + } + + #[test] + fn spec_tests_f64() { + spec_test::(); + } +} diff --git a/library/compiler-builtins/libm/src/math/generic/mod.rs b/library/compiler-builtins/libm/src/math/generic/mod.rs index 3b5a2c3effd7..f8bb9fa6adb1 100644 --- a/library/compiler-builtins/libm/src/math/generic/mod.rs +++ b/library/compiler-builtins/libm/src/math/generic/mod.rs @@ -1,9 +1,11 @@ +mod ceil; mod copysign; mod fabs; mod fdim; mod sqrt; mod trunc; +pub use ceil::ceil; pub use copysign::copysign; pub use fabs::fabs; pub use fdim::fdim; From 9064c42abe93f9864243aa982b529d54a731db80 Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Mon, 13 Jan 2025 11:17:17 +0000 Subject: [PATCH 4/4] Add `ceilf16` and `ceilf128` Use the generic algorithms to provide implementations for these routines. --- .../libm/crates/libm-macros/src/shared.rs | 4 ++-- .../libm/crates/libm-test/benches/icount.rs | 2 ++ .../libm/crates/libm-test/benches/random.rs | 4 +++- .../libm/crates/libm-test/src/mpfloat.rs | 4 ++++ .../libm-test/tests/compare_built_musl.rs | 2 ++ .../libm/crates/util/src/main.rs | 4 +++- .../libm/etc/function-definitions.json | 20 +++++++++++++++++-- .../libm/etc/function-list.txt | 2 ++ .../libm/src/math/ceilf128.rs | 7 +++++++ .../libm/src/math/ceilf16.rs | 7 +++++++ .../libm/src/math/generic/ceil.rs | 14 +++++++++++++ .../compiler-builtins/libm/src/math/mod.rs | 4 ++++ 12 files changed, 68 insertions(+), 6 deletions(-) create mode 100644 library/compiler-builtins/libm/src/math/ceilf128.rs create mode 100644 library/compiler-builtins/libm/src/math/ceilf16.rs diff --git a/library/compiler-builtins/libm/crates/libm-macros/src/shared.rs b/library/compiler-builtins/libm/crates/libm-macros/src/shared.rs index d17bc6ffccb7..e7d3d18d9a1b 100644 --- a/library/compiler-builtins/libm/crates/libm-macros/src/shared.rs +++ b/library/compiler-builtins/libm/crates/libm-macros/src/shared.rs @@ -9,7 +9,7 @@ const ALL_OPERATIONS_NESTED: &[(FloatTy, Signature, Option, &[&str])] FloatTy::F16, Signature { args: &[Ty::F16], returns: &[Ty::F16] }, None, - &["fabsf16", "sqrtf16", "truncf16"], + &["ceilf16", "fabsf16", "sqrtf16", "truncf16"], ), ( // `fn(f32) -> f32` @@ -40,7 +40,7 @@ const ALL_OPERATIONS_NESTED: &[(FloatTy, Signature, Option, &[&str])] FloatTy::F128, Signature { args: &[Ty::F128], returns: &[Ty::F128] }, None, - &["fabsf128", "sqrtf128", "truncf128"], + &["ceilf128", "fabsf128", "sqrtf128", "truncf128"], ), ( // `(f16, f16) -> f16` diff --git a/library/compiler-builtins/libm/crates/libm-test/benches/icount.rs b/library/compiler-builtins/libm/crates/libm-test/benches/icount.rs index c8451f88cd38..84be3d5245b6 100644 --- a/library/compiler-builtins/libm/crates/libm-test/benches/icount.rs +++ b/library/compiler-builtins/libm/crates/libm-test/benches/icount.rs @@ -69,6 +69,8 @@ main!( icount_bench_cbrt_group, icount_bench_cbrtf_group, icount_bench_ceil_group, + icount_bench_ceilf128_group, + icount_bench_ceilf16_group, icount_bench_ceilf_group, icount_bench_copysign_group, icount_bench_copysignf128_group, diff --git a/library/compiler-builtins/libm/crates/libm-test/benches/random.rs b/library/compiler-builtins/libm/crates/libm-test/benches/random.rs index 026841202532..511e26d91267 100644 --- a/library/compiler-builtins/libm/crates/libm-test/benches/random.rs +++ b/library/compiler-builtins/libm/crates/libm-test/benches/random.rs @@ -117,7 +117,9 @@ libm_macros::for_each_function! { exp10 | exp10f | exp2 | exp2f => (true, Some(musl_math_sys::MACRO_FN_NAME)), // Musl does not provide `f16` and `f128` functions - copysignf128 + ceilf128 + | ceilf16 + | copysignf128 | copysignf16 | fabsf128 | fabsf16 diff --git a/library/compiler-builtins/libm/crates/libm-test/src/mpfloat.rs b/library/compiler-builtins/libm/crates/libm-test/src/mpfloat.rs index 9d95356d39b3..bbd19dbb07ba 100644 --- a/library/compiler-builtins/libm/crates/libm-test/src/mpfloat.rs +++ b/library/compiler-builtins/libm/crates/libm-test/src/mpfloat.rs @@ -137,6 +137,8 @@ libm_macros::for_each_function! { // Most of these need a manual implementation ceil, ceilf, + ceilf128, + ceilf16, copysign, copysignf, copysignf128, @@ -237,12 +239,14 @@ impl_no_round! { #[cfg(f16_enabled)] impl_no_round! { fabsf16 => abs_mut; + ceilf16 => ceil_mut; truncf16 => trunc_mut; } #[cfg(f128_enabled)] impl_no_round! { fabsf128 => abs_mut; + ceilf128 => ceil_mut; truncf128 => trunc_mut; } diff --git a/library/compiler-builtins/libm/crates/libm-test/tests/compare_built_musl.rs b/library/compiler-builtins/libm/crates/libm-test/tests/compare_built_musl.rs index 24703f273168..e13acf3de216 100644 --- a/library/compiler-builtins/libm/crates/libm-test/tests/compare_built_musl.rs +++ b/library/compiler-builtins/libm/crates/libm-test/tests/compare_built_musl.rs @@ -79,6 +79,8 @@ libm_macros::for_each_function! { ynf, // Not provided by musl + ceilf128, + ceilf16, copysignf128, copysignf16, fabsf128, diff --git a/library/compiler-builtins/libm/crates/util/src/main.rs b/library/compiler-builtins/libm/crates/util/src/main.rs index cd68d9afd1a2..810919339ec6 100644 --- a/library/compiler-builtins/libm/crates/util/src/main.rs +++ b/library/compiler-builtins/libm/crates/util/src/main.rs @@ -84,7 +84,9 @@ fn do_eval(basis: &str, op: &str, inputs: &[&str]) { emit_types: [CFn, RustFn, RustArgs], extra: (basis, op, inputs), fn_extra: match MACRO_FN_NAME { - copysignf128 + ceilf128 + | ceilf16 + | copysignf128 | copysignf16 | fabsf128 | fabsf16 diff --git a/library/compiler-builtins/libm/etc/function-definitions.json b/library/compiler-builtins/libm/etc/function-definitions.json index 2d0af3bcff02..c75152f63019 100644 --- a/library/compiler-builtins/libm/etc/function-definitions.json +++ b/library/compiler-builtins/libm/etc/function-definitions.json @@ -109,17 +109,33 @@ "src/libm_helper.rs", "src/math/arch/i586.rs", "src/math/arch/wasm32.rs", - "src/math/ceil.rs" + "src/math/ceil.rs", + "src/math/generic/ceil.rs" ], "type": "f64" }, "ceilf": { "sources": [ "src/math/arch/wasm32.rs", - "src/math/ceilf.rs" + "src/math/ceilf.rs", + "src/math/generic/ceil.rs" ], "type": "f32" }, + "ceilf128": { + "sources": [ + "src/math/ceilf128.rs", + "src/math/generic/ceil.rs" + ], + "type": "f128" + }, + "ceilf16": { + "sources": [ + "src/math/ceilf16.rs", + "src/math/generic/ceil.rs" + ], + "type": "f16" + }, "copysign": { "sources": [ "src/libm_helper.rs", diff --git a/library/compiler-builtins/libm/etc/function-list.txt b/library/compiler-builtins/libm/etc/function-list.txt index 47c34ab90521..337e7e434e5f 100644 --- a/library/compiler-builtins/libm/etc/function-list.txt +++ b/library/compiler-builtins/libm/etc/function-list.txt @@ -17,6 +17,8 @@ cbrt cbrtf ceil ceilf +ceilf128 +ceilf16 copysign copysignf copysignf128 diff --git a/library/compiler-builtins/libm/src/math/ceilf128.rs b/library/compiler-builtins/libm/src/math/ceilf128.rs new file mode 100644 index 000000000000..89980858eb5b --- /dev/null +++ b/library/compiler-builtins/libm/src/math/ceilf128.rs @@ -0,0 +1,7 @@ +/// Ceil (f128) +/// +/// Finds the nearest integer greater than or equal to `x`. +#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)] +pub fn ceilf128(x: f128) -> f128 { + super::generic::ceil(x) +} diff --git a/library/compiler-builtins/libm/src/math/ceilf16.rs b/library/compiler-builtins/libm/src/math/ceilf16.rs new file mode 100644 index 000000000000..2af67eff0d2a --- /dev/null +++ b/library/compiler-builtins/libm/src/math/ceilf16.rs @@ -0,0 +1,7 @@ +/// Ceil (f16) +/// +/// Finds the nearest integer greater than or equal to `x`. +#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)] +pub fn ceilf16(x: f16) -> f16 { + super::generic::ceil(x) +} diff --git a/library/compiler-builtins/libm/src/math/generic/ceil.rs b/library/compiler-builtins/libm/src/math/generic/ceil.rs index d16d0657279e..34261faf782f 100644 --- a/library/compiler-builtins/libm/src/math/generic/ceil.rs +++ b/library/compiler-builtins/libm/src/math/generic/ceil.rs @@ -63,6 +63,14 @@ mod tests { } } + /* Skipping f16 / f128 "sanity_check"s due to rejected literal lexing at MSRV */ + + #[test] + #[cfg(f16_enabled)] + fn spec_tests_f16() { + spec_test::(); + } + #[test] fn sanity_check_f32() { assert_eq!(ceil(1.1f32), 2.0); @@ -84,4 +92,10 @@ mod tests { fn spec_tests_f64() { spec_test::(); } + + #[test] + #[cfg(f128_enabled)] + fn spec_tests_f128() { + spec_test::(); + } } diff --git a/library/compiler-builtins/libm/src/math/mod.rs b/library/compiler-builtins/libm/src/math/mod.rs index 3684025a6c10..5228e78b7f33 100644 --- a/library/compiler-builtins/libm/src/math/mod.rs +++ b/library/compiler-builtins/libm/src/math/mod.rs @@ -341,12 +341,14 @@ pub use self::truncf::truncf; cfg_if! { if #[cfg(f16_enabled)] { + mod ceilf16; mod copysignf16; mod fabsf16; mod fdimf16; mod sqrtf16; mod truncf16; + pub use self::ceilf16::ceilf16; pub use self::copysignf16::copysignf16; pub use self::fabsf16::fabsf16; pub use self::fdimf16::fdimf16; @@ -357,12 +359,14 @@ cfg_if! { cfg_if! { if #[cfg(f128_enabled)] { + mod ceilf128; mod copysignf128; mod fabsf128; mod fdimf128; mod sqrtf128; mod truncf128; + pub use self::ceilf128::ceilf128; pub use self::copysignf128::copysignf128; pub use self::fabsf128::fabsf128; pub use self::fdimf128::fdimf128;