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rustc_target: Add the fp16 target feature for AArch32 #136813

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Merged
merged 1 commit into from
Feb 11, 2025
Merged

rustc_target: Add the fp16 target feature for AArch32 #136813

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1 change: 1 addition & 0 deletions compiler/rustc_codegen_llvm/src/llvm_util.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -271,6 +271,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea
("aarch64", "fp16") => Some(LLVMFeature::new("fullfp16")),
// Filter out features that are not supported by the current LLVM version
("aarch64", "fpmr") if get_version().0 != 18 => None,
("arm", "fp16") => Some(LLVMFeature::new("fullfp16")),
// In LLVM 18, `unaligned-scalar-mem` was merged with `unaligned-vector-mem` into a single
// feature called `fast-unaligned-access`. In LLVM 19, it was split back out.
("riscv32" | "riscv64", "unaligned-scalar-mem") if get_version().0 == 18 => {
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1 change: 1 addition & 0 deletions compiler/rustc_target/src/target_features.rs
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Expand Up @@ -145,6 +145,7 @@ const ARM_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[
("dotprod", Unstable(sym::arm_target_feature), &["neon"]),
("dsp", Unstable(sym::arm_target_feature), &[]),
("fp-armv8", Unstable(sym::arm_target_feature), &["vfp4"]),
("fp16", Unstable(sym::arm_target_feature), &["neon"]),
("fpregs", Unstable(sym::arm_target_feature), &[]),
("i8mm", Unstable(sym::arm_target_feature), &["neon"]),
("mclass", Unstable(sym::arm_target_feature), &[]),
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