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|
#![allow(unused_macros)]
#![cfg_attr(f128_enabled, feature(f128))]
use builtins_test::*;
mod int_mul {
use super::*;
macro_rules! mul {
($($i:ty, $fn:ident);*;) => {
$(
#[test]
fn $fn() {
use compiler_builtins::int::mul::$fn;
fuzz_2(N, |x: $i, y: $i| {
let mul0 = x.wrapping_mul(y);
let mul1: $i = $fn(x, y);
if mul0 != mul1 {
panic!(
"{func}({x}, {y}): std: {mul0}, builtins: {mul1}",
func = stringify!($fn),
);
}
});
}
)*
};
}
mul! {
u64, __muldi3;
i128, __multi3;
}
}
mod int_overflowing_mul {
use super::*;
macro_rules! overflowing_mul {
($($i:ty, $fn:ident);*;) => {
$(
#[test]
fn $fn() {
use compiler_builtins::int::mul::$fn;
fuzz_2(N, |x: $i, y: $i| {
let (mul0, o0) = x.overflowing_mul(y);
let mut o1 = 0i32;
let mul1: $i = $fn(x, y, &mut o1);
let o1 = o1 != 0;
if mul0 != mul1 || o0 != o1 {
panic!(
"{func}({x}, {y}): std: ({mul0}, {o0}), builtins: ({mul1}, {o1})",
func = stringify!($fn),
);
}
});
}
)*
};
}
overflowing_mul! {
i32, __mulosi4;
i64, __mulodi4;
i128, __muloti4;
}
#[test]
fn overflowing_mul_u128() {
use compiler_builtins::int::mul::{__rust_i128_mulo, __rust_u128_mulo};
fuzz_2(N, |x: u128, y: u128| {
let mut o1 = 0;
let (mul0, o0) = x.overflowing_mul(y);
let mul1 = __rust_u128_mulo(x, y, &mut o1);
if mul0 != mul1 || i32::from(o0) != o1 {
panic!("__rust_u128_mulo({x}, {y}): std: ({mul0}, {o0}), builtins: ({mul1}, {o1})",);
}
let x = x as i128;
let y = y as i128;
let (mul0, o0) = x.overflowing_mul(y);
let mul1 = __rust_i128_mulo(x, y, &mut o1);
if mul0 != mul1 || i32::from(o0) != o1 {
panic!("__rust_i128_mulo({x}, {y}): std: ({mul0}, {o0}), builtins: ({mul1}, {o1})",);
}
});
}
}
macro_rules! float_mul {
($($f:ty, $fn:ident, $apfloat_ty:ident, $sys_available:meta);*;) => {
$(
#[test]
fn $fn() {
use compiler_builtins::float::{mul::$fn, Float};
use core::ops::Mul;
fuzz_float_2(N, |x: $f, y: $f| {
let mul0 = apfloat_fallback!($f, $apfloat_ty, $sys_available, Mul::mul, x, y);
let mul1: $f = $fn(x, y);
if !Float::eq_repr(mul0, mul1) {
panic!(
"{func}({x:?}, {y:?}): std: {mul0:?}, builtins: {mul1:?}",
func = stringify!($fn),
);
}
});
}
)*
};
}
#[cfg(not(all(target_arch = "x86", not(target_feature = "sse"))))]
mod float_mul {
use super::*;
// FIXME(#616): Stop ignoring arches that don't have native support once fix for builtins is in
// nightly.
float_mul! {
f32, __mulsf3, Single, not(target_arch = "arm");
f64, __muldf3, Double, not(target_arch = "arm");
}
}
#[cfg(f128_enabled)]
#[cfg(not(all(target_arch = "x86", not(target_feature = "sse"))))]
#[cfg(not(any(target_arch = "powerpc", target_arch = "powerpc64")))]
mod float_mul_f128 {
use super::*;
float_mul! {
f128, __multf3, Quad,
// FIXME(llvm): there is a bug in LLVM rt.
// See <https://github.com/llvm/llvm-project/issues/91840>.
not(any(feature = "no-sys-f128", all(target_arch = "aarch64", target_os = "linux")));
}
}
#[cfg(f128_enabled)]
#[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))]
mod float_mul_f128_ppc {
use super::*;
float_mul! {
f128, __mulkf3, Quad, not(feature = "no-sys-f128");
}
}
|
