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core: Limit remaining f16 doctests to x86_64 linux

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On s390x, every use of the f16 data type will currently ICE
due to https://github.com/llvm/llvm-project/issues/50374,
causing doctest failures on the platform.

Most doctests were already restricted to certain platforms,
so fix this by likewise restricting the remaining five.
This commit is contained in:
Ulrich Weigand 2024-07-10 23:21:57 +02:00
parent c092b28976
commit 0065763950
1 changed files with 15 additions and 0 deletions
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15
library/core/src/num/f16.rs
View File

@ -353,12 +353,15 @@ impl f16 {
///
/// ```
/// #![feature(f16)]
/// # // FIXME(f16_f128): LLVM crashes on s390x, llvm/llvm-project#50374
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
///
/// let f = 7.0_f16;
/// let g = -7.0_f16;
///
/// assert!(f.is_sign_positive());
/// assert!(!g.is_sign_positive());
/// # }
/// ```
#[inline]
#[must_use]
@ -376,12 +379,15 @@ impl f16 {
///
/// ```
/// #![feature(f16)]
/// # // FIXME(f16_f128): LLVM crashes on s390x, llvm/llvm-project#50374
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
///
/// let f = 7.0_f16;
/// let g = -7.0_f16;
///
/// assert!(!f.is_sign_negative());
/// assert!(g.is_sign_negative());
/// # }
/// ```
#[inline]
#[must_use]
@ -694,9 +700,12 @@ impl f16 {
///
/// ```
/// #![feature(f16)]
/// # // FIXME(f16_f128): LLVM crashes on s390x, llvm/llvm-project#50374
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
///
/// let bytes = 12.5f16.to_be_bytes();
/// assert_eq!(bytes, [0x4a, 0x40]);
/// # }
/// ```
#[inline]
#[unstable(feature = "f16", issue = "116909")]
@ -715,9 +724,12 @@ impl f16 {
///
/// ```
/// #![feature(f16)]
/// # // FIXME(f16_f128): LLVM crashes on s390x, llvm/llvm-project#50374
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
///
/// let bytes = 12.5f16.to_le_bytes();
/// assert_eq!(bytes, [0x40, 0x4a]);
/// # }
/// ```
#[inline]
#[unstable(feature = "f16", issue = "116909")]
@ -742,6 +754,8 @@ impl f16 {
///
/// ```
/// #![feature(f16)]
/// # // FIXME(f16_f128): LLVM crashes on s390x, llvm/llvm-project#50374
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
///
/// let bytes = 12.5f16.to_ne_bytes();
/// assert_eq!(
@ -752,6 +766,7 @@ impl f16 {
/// [0x40, 0x4a]
/// }
/// );
/// # }
/// ```
#[inline]
#[unstable(feature = "f16", issue = "116909")]