Merge pull request #508 from rust-lang/fix/aarch64

Some more fixes and workarounds for Aarch64

Author: antoyo

src/int.rs

@@ -926,7 +926,7 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
  return self.context.new_cast(None, value, dest_typ);
  }
 
- debug_assert!(value_type.dyncast_array().is_some());
+ debug_assert!(dest_typ.dyncast_array().is_some());
  let name_suffix = match self.type_kind(value_type) {
  TypeKind::Float => "sfti",
  TypeKind::Double => "dfti",

src/lib.rs

@@ -468,6 +468,7 @@ pub fn target_features(
  allow_unstable: bool,
  target_info: &LockedTargetInfo,
 ) -> Vec<Symbol> {
+ // TODO(antoyo): use global_gcc_features.
  sess.target
  .supported_target_features()
  .iter()
@@ -478,8 +479,12 @@ pub fn target_features(
  None
  }
  })
- .filter(|_feature| {
- target_info.cpu_supports(_feature)
+ .filter(|feature| {
+ // TODO: we disable Neon for now since we don't support the LLVM intrinsics for it.
+ if *feature == "neon" {
+ return false;
+ }
+ target_info.cpu_supports(feature)
  /*
  adx, aes, avx, avx2, avx512bf16, avx512bitalg, avx512bw, avx512cd, avx512dq, avx512er, avx512f, avx512fp16, avx512ifma,
  avx512pf, avx512vbmi, avx512vbmi2, avx512vl, avx512vnni, avx512vp2intersect, avx512vpopcntdq,