mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 06:44:35 +00:00
Auto merge of #128349 - tgross35:x86-f16, r=Noratrieb
Enable `f16` tests on x86 and x86-64 Since the `compiler_builtins` update [1], ABI bugs on x86 should be resolved. Enable tests for f16 on these platforms now. `f16` math functions (`reliable_f16_math`) are still excluded because there is an LLVM crash for powi [2]. [1]: https://github.com/rust-lang/rust/pull/125016 [2]: https://github.com/llvm/llvm-project/issues/105747 try-job: dist-i586-gnu-i586-i686-musl try-job: x86_64-apple-1
This commit is contained in:
bors
commit
f167efad2f
@ -261,7 +261,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let nan = f16::NAN;
|
||||
/// let f = 7.0_f16;
|
||||
@ -293,7 +293,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let f = 7.0f16;
|
||||
/// let inf = f16::INFINITY;
|
||||
@ -319,7 +319,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let f = 7.0f16;
|
||||
/// let inf: f16 = f16::INFINITY;
|
||||
@ -347,7 +347,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let min = f16::MIN_POSITIVE; // 6.1035e-5
|
||||
/// let max = f16::MAX;
|
||||
@ -377,7 +377,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let min = f16::MIN_POSITIVE; // 6.1035e-5
|
||||
/// let max = f16::MAX;
|
||||
@ -409,7 +409,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// use std::num::FpCategory;
|
||||
///
|
||||
@ -867,7 +867,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let value = 4.6_f16;
|
||||
/// let rounded = unsafe { value.to_int_unchecked::<u16>() };
|
||||
@ -910,7 +910,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// # // FIXME(f16_f128): enable this once const casting works
|
||||
/// # // assert_ne!((1f16).to_bits(), 1f16 as u128); // to_bits() is not casting!
|
||||
@ -958,7 +958,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let v = f16::from_bits(0x4a40);
|
||||
/// assert_eq!(v, 12.5);
|
||||
@ -1071,7 +1071,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let value = f16::from_be_bytes([0x4a, 0x40]);
|
||||
/// assert_eq!(value, 12.5);
|
||||
@ -1094,7 +1094,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let value = f16::from_le_bytes([0x40, 0x4a]);
|
||||
/// assert_eq!(value, 12.5);
|
||||
@ -1124,7 +1124,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// let value = f16::from_ne_bytes(if cfg!(target_endian = "big") {
|
||||
/// [0x4a, 0x40]
|
||||
@ -1257,7 +1257,7 @@ impl f16 {
|
||||
///
|
||||
/// ```
|
||||
/// #![feature(f16)]
|
||||
/// # #[cfg(target_arch = "aarch64")] { // FIXME(f16_F128): rust-lang/rust#123885
|
||||
/// # #[cfg(all(target_arch = "x86_64", target_os = "linux"))] {
|
||||
///
|
||||
/// assert!((-3.0f16).clamp(-2.0, 1.0) == -2.0);
|
||||
/// assert!((0.0f16).clamp(-2.0, 1.0) == 0.0);
|
||||
|
||||
@ -103,9 +103,9 @@ fn main() {
|
||||
("arm64ec", _) => false,
|
||||
// MinGW ABI bugs <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115054>
|
||||
("x86_64", "windows") => false,
|
||||
// x86 has ABI bugs that show up with optimizations. This should be partially fixed with
|
||||
// the compiler-builtins update. <https://github.com/rust-lang/rust/issues/123885>
|
||||
("x86" | "x86_64", _) => false,
|
||||
// Apple has a special ABI for `f16` that we do not yet support
|
||||
// FIXME(builtins): fixed by <https://github.com/rust-lang/compiler-builtins/pull/675>
|
||||
("x86" | "x86_64", _) if target_vendor == "apple" => false,
|
||||
// Missing `__gnu_h2f_ieee` and `__gnu_f2h_ieee`
|
||||
("powerpc" | "powerpc64", _) => false,
|
||||
// Missing `__gnu_h2f_ieee` and `__gnu_f2h_ieee`
|
||||
@ -140,17 +140,17 @@ fn main() {
|
||||
_ => false,
|
||||
};
|
||||
|
||||
// These are currently empty, but will fill up as some platforms move from completely
|
||||
// unreliable to reliable basics but unreliable math.
|
||||
// Configure platforms that have reliable basics but may have unreliable math.
|
||||
|
||||
// LLVM is currenlty adding missing routines, <https://github.com/llvm/llvm-project/issues/93566>
|
||||
let has_reliable_f16_math = has_reliable_f16
|
||||
&& match (target_arch.as_str(), target_os.as_str()) {
|
||||
// FIXME: Disabled on Miri as the intrinsics are not implemented yet.
|
||||
_ if is_miri => false,
|
||||
// Currently nothing special. Hooray!
|
||||
// This will change as platforms gain better better support for standard ops but math
|
||||
// lags behind.
|
||||
// x86 has a crash for `powi`: <https://github.com/llvm/llvm-project/issues/105747>
|
||||
("x86" | "x86_64", _) => false,
|
||||
// Assume that working `f16` means working `f16` math for most platforms, since
|
||||
// operations just go through `f32`.
|
||||
_ => true,
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user