Merge pull request #2224 from folkertdev/win-gnu-no-f16

only run `f16` tests when `target_has_reliable_f16`

Author: adamgemmell

crates/core_arch/Cargo.toml

@@ -24,6 +24,9 @@ stdarch-test = { version = "0.*", path = "../stdarch-test" }
 [target.'cfg(all(target_arch = "x86_64", target_os = "linux"))'.dev-dependencies]
 syscalls = { version = "0.6.18", default-features = false }
 
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_has_reliable_f16)'] }
+
 [lints.clippy]
 too_long_first_doc_paragraph = "allow"
 missing_transmute_annotations = "allow"

crates/core_arch/src/lib.rs

@@ -42,7 +42,15 @@
     clflushopt_target_feature,
     min_adt_const_params
 )]
-#![cfg_attr(test, feature(test, abi_vectorcall, stdarch_internal))]
+#![cfg_attr(
+    test,
+    feature(
+        test,
+        abi_vectorcall,
+        stdarch_internal,
+        cfg_target_has_reliable_f16_f128
+    )
+)]
 #![deny(clippy::missing_inline_in_public_items)]
 #![allow(
     clippy::identity_op,

crates/core_arch/src/x86/avx512fp16.rs

@@ -16837,6 +16837,7 @@ unsafe extern "llvm-intrinsic" {
 }
 
 #[cfg(test)]
+#[cfg(target_has_reliable_f16)]
 mod tests {
     use crate::core_arch::assert_eq_const as assert_eq;
     use crate::core_arch::x86::*;

crates/core_arch/src/x86_64/avx512fp16.rs

@@ -227,6 +227,7 @@ unsafe extern "llvm-intrinsic" {
 }
 
 #[cfg(test)]
+#[cfg(target_has_reliable_f16)]
 mod tests {
     use crate::core_arch::{x86::*, x86_64::*};
     use stdarch_test::simd_test;