generic-simd feature fails to build on nightly

[ytmimi]

The crate fails to build when using the generic-simd feature.

running cargo +nightly-2024-04-08 build -F generic-simd produces compilation errors:

Error Output

error[E0557]: feature has been removed
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/lib.rs:218:5
    |
218 |     platform_intrinsics,
    |     ^^^^^^^^^^^^^^^^^^^ feature has been removed
    |
    = note: SIMD intrinsics use the regular intrinsics ABI now

error[E0703]: invalid ABI: found `platform-intrinsic`
 --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:8:8
  |
8 | extern "platform-intrinsic" {
  |        ^^^^^^^^^^^^^^^^^^^^ invalid ABI
  |
  = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.

error[E0703]: invalid ABI: found `platform-intrinsic`
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:72:8
   |
72 | extern "platform-intrinsic" {
   |        ^^^^^^^^^^^^^^^^^^^^ invalid ABI
   |
   = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions.

error[E0635]: unknown feature `stdsimd`
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/lib.rs:219:5
    |
219 |     stdsimd,
    |     ^^^^^^^

error[E0044]: foreign items may not have type parameters
 --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:9:5
  |
9 |     fn simd_shuffle<T, I, U>(x: T, y: T, idx: I) -> U;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
  |
  = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:73:5
   |
73 |     pub(crate) fn simd_eq<T, U>(x: T, y: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:74:5
   |
74 |     pub(crate) fn simd_ne<T, U>(x: T, y: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:75:5
   |
75 |     pub(crate) fn simd_lt<T, U>(x: T, y: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:76:5
   |
76 |     pub(crate) fn simd_le<T, U>(x: T, y: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:77:5
   |
77 |     pub(crate) fn simd_gt<T, U>(x: T, y: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:78:5
   |
78 |     pub(crate) fn simd_ge<T, U>(x: T, y: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:80:5
   |
80 |     pub(crate) fn simd_insert<T, U>(x: T, idx: u32, val: U) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:81:5
   |
81 |     pub(crate) fn simd_extract<T, U>(x: T, idx: u32) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:83:5
   |
83 |     pub(crate) fn simd_cast<T, U>(x: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:85:5
   |
85 |     pub(crate) fn simd_add<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:86:5
   |
86 |     pub(crate) fn simd_sub<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:87:5
   |
87 |     pub(crate) fn simd_mul<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:88:5
   |
88 |     pub(crate) fn simd_div<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:89:5
   |
89 |     pub(crate) fn simd_rem<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:90:5
   |
90 |     pub(crate) fn simd_shl<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:91:5
   |
91 |     pub(crate) fn simd_shr<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:92:5
   |
92 |     pub(crate) fn simd_and<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:93:5
   |
93 |     pub(crate) fn simd_or<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:94:5
   |
94 |     pub(crate) fn simd_xor<T>(x: T, y: T) -> T;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:96:5
   |
96 |     pub(crate) fn simd_reduce_add_unordered<T, U>(x: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:97:5
   |
97 |     pub(crate) fn simd_reduce_mul_unordered<T, U>(x: T) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:98:5
   |
98 |     pub(crate) fn simd_reduce_add_ordered<T, U>(x: T, acc: U) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
  --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:99:5
   |
99 |     pub(crate) fn simd_reduce_mul_ordered<T, U>(x: T, acc: U) -> U;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
   |
   = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:100:5
    |
100 |     pub(crate) fn simd_reduce_min<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:101:5
    |
101 |     pub(crate) fn simd_reduce_max<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:102:5
    |
102 |     pub(crate) fn simd_reduce_min_nanless<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:103:5
    |
103 |     pub(crate) fn simd_reduce_max_nanless<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:104:5
    |
104 |     pub(crate) fn simd_reduce_and<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:105:5
    |
105 |     pub(crate) fn simd_reduce_or<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:106:5
    |
106 |     pub(crate) fn simd_reduce_xor<T, U>(x: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:107:5
    |
107 |     pub(crate) fn simd_reduce_all<T>(x: T) -> bool;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:108:5
    |
108 |     pub(crate) fn simd_reduce_any<T>(x: T) -> bool;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:110:5
    |
110 |     pub(crate) fn simd_select<M, T>(m: M, a: T, b: T) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:112:5
    |
112 |     pub(crate) fn simd_fmin<T>(a: T, b: T) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:113:5
    |
113 |     pub(crate) fn simd_fmax<T>(a: T, b: T) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:115:5
    |
115 |     pub(crate) fn simd_fsqrt<T>(a: T) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:116:5
    |
116 |     pub(crate) fn simd_fma<T>(a: T, b: T, c: T) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:118:5
    |
118 |     pub(crate) fn simd_gather<T, P, M>(value: T, pointers: P, mask: M) -> T;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:119:5
    |
119 |     pub(crate) fn simd_scatter<T, P, M>(value: T, pointers: P, mask: M);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

error[E0044]: foreign items may not have type parameters
   --> /Users/ytmimi/.cargo/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/codegen/llvm.rs:121:5
    |
121 |     pub(crate) fn simd_bitmask<T, U>(value: T) -> U;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't have type parameters
    |
    = help: replace the type parameters with concrete types like `u32`

Here's the version of cargo that I'm using: cargo +nightly-2024-04-08 -Vv

cargo 1.79.0-nightly (28e7b2bc0 2024-04-05)
release: 1.79.0-nightly
commit-hash: 28e7b2bc0a812f90126be30f48a00a4ada990eaa
commit-date: 2024-04-05
host: aarch64-apple-darwin
libgit2: 1.7.2 (sys:0.18.3 vendored)
libcurl: 7.79.1 (sys:0.4.72+curl-8.6.0 system ssl:(SecureTransport) LibreSSL/3.3.6)
ssl: OpenSSL 3.2.1 30 Jan 2024
os: Mac OS 12.6.0 [64-bit]

I believe this is related to rust-lang/packed_simd#360