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authorChris Denton <christophersdenton@gmail.com>2025-04-12 21:05:28 +0000
committerGitHub <noreply@github.com>2025-04-12 21:05:28 +0000
commit0ea345a3c32b8fc00be5c1805b086bdc93231d60 (patch)
tree4c26ea5687898f948e5e94d4a3f85b7c19aad816
parent2722e8265355d3fc0bf764f9159b5cdb9b8e97a0 (diff)
parent4a8d35709e301d983412b42b26dad6eb5c869951 (diff)
downloadrust-0ea345a3c32b8fc00be5c1805b086bdc93231d60.tar.gz
rust-0ea345a3c32b8fc00be5c1805b086bdc93231d60.zip
Rollup merge of #139276 - tgross35:enable-f16-without-neon, r=Mark-Simulacrum
Revert "Disable `f16` on Aarch64 without `neon`"

The LLVM issue [1] was resolved and the fix was synced to rust-lang/rust in [2].

This reverts commit c51b229140c885cac757a405a328a07e90d5bca9.

[1]: https://github.com/llvm/llvm-project/issues/129394
[2]: https://github.com/rust-lang/rust/pull/138695

try-job: aarch64-gnu
try-job: aarch64-gnu-debug
try-job: armhf-gnu
try-job: dist-various-1
-rw-r--r--library/std/build.rs7
1 files changed, 0 insertions, 7 deletions
diff --git a/library/std/build.rs b/library/std/build.rs
index d76d07a89f4..40a56d4930d 100644
--- a/library/std/build.rs
+++ b/library/std/build.rs
@@ -12,11 +12,6 @@ fn main() {
         .expect("CARGO_CFG_TARGET_POINTER_WIDTH was not set")
         .parse()
         .unwrap();
-    let target_features: Vec<_> = env::var("CARGO_CFG_TARGET_FEATURE")
-        .unwrap_or_default()
-        .split(",")
-        .map(ToOwned::to_owned)
-        .collect();
     let is_miri = env::var_os("CARGO_CFG_MIRI").is_some();
 
     println!("cargo:rustc-check-cfg=cfg(netbsd10)");
@@ -108,8 +103,6 @@ fn main() {
         ("s390x", _) => false,
         // Unsupported <https://github.com/llvm/llvm-project/issues/94434>
         ("arm64ec", _) => false,
-        // LLVM crash <https://github.com/llvm/llvm-project/issues/129394>
-        ("aarch64", _) if !target_features.iter().any(|f| f == "neon") => false,
         // MinGW ABI bugs <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115054>
         ("x86_64", "windows") if target_env == "gnu" && target_abi != "llvm" => false,
         // Infinite recursion <https://github.com/llvm/llvm-project/issues/97981>