1 files changed, 0 insertions, 172 deletions
diff --git a/vendor/portable-atomic/src/imp/fallback/outline_atomics.rs b/vendor/portable-atomic/src/imp/fallback/outline_atomics.rs
deleted file mode 100644
index 895b60c..0000000
--- a/vendor/portable-atomic/src/imp/fallback/outline_atomics.rs
+++ /dev/null
@@ -1,172 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0 OR MIT
-
-// Helper for outline-atomics.
-//
-// On architectures where DW atomics are not supported on older CPUs, we use
-// fallback implementation when DW atomic instructions are not supported and
-// outline-atomics is enabled.
-//
-// This module provides helpers to implement them.
-
-use core::sync::atomic::Ordering;
-
-#[cfg(any(target_arch = "x86_64", target_arch = "powerpc64"))]
-pub(crate) type Udw = u128;
-#[cfg(any(target_arch = "x86_64", target_arch = "powerpc64"))]
-pub(crate) type AtomicUdw = super::super::fallback::AtomicU128;
-#[cfg(any(target_arch = "x86_64", target_arch = "powerpc64"))]
-pub(crate) type AtomicIdw = super::super::fallback::AtomicI128;
-
-#[cfg(target_arch = "arm")]
-pub(crate) type Udw = u64;
-#[cfg(target_arch = "arm")]
-pub(crate) type AtomicUdw = super::super::fallback::AtomicU64;
-#[cfg(target_arch = "arm")]
-pub(crate) type AtomicIdw = super::super::fallback::AtomicI64;
-
-// Asserts that the function is called in the correct context.
-macro_rules! debug_assert_outline_atomics {
-    () => {
-        #[cfg(target_arch = "x86_64")]
-        {
-            debug_assert!(!super::detect::detect().has_cmpxchg16b());
-        }
-        #[cfg(target_arch = "powerpc64")]
-        {
-            debug_assert!(!super::detect::detect().has_quadword_atomics());
-        }
-        #[cfg(target_arch = "arm")]
-        {
-            debug_assert!(!super::has_kuser_cmpxchg64());
-        }
-    };
-}
-
-#[cold]
-pub(crate) unsafe fn atomic_load(src: *mut Udw, order: Ordering) -> Udw {
-    debug_assert_outline_atomics!();
-    #[allow(clippy::cast_ptr_alignment)]
-    // SAFETY: the caller must uphold the safety contract.
-    unsafe {
-        (*(src as *const AtomicUdw)).load(order)
-    }
-}
-fn_alias! {
-    #[cold]
-    pub(crate) unsafe fn(src: *mut Udw) -> Udw;
-    // fallback's atomic load has at least acquire semantics.
-    #[cfg(not(any(target_arch = "arm", target_arch = "x86_64")))]
-    atomic_load_non_seqcst = atomic_load(Ordering::Acquire);
-    atomic_load_seqcst = atomic_load(Ordering::SeqCst);
-}
-
-#[cold]
-pub(crate) unsafe fn atomic_store(dst: *mut Udw, val: Udw, order: Ordering) {
-    debug_assert_outline_atomics!();
-    #[allow(clippy::cast_ptr_alignment)]
-    // SAFETY: the caller must uphold the safety contract.
-    unsafe {
-        (*(dst as *const AtomicUdw)).store(val, order);
-    }
-}
-fn_alias! {
-    #[cold]
-    pub(crate) unsafe fn(dst: *mut Udw, val: Udw);
-    // fallback's atomic store has at least release semantics.
-    #[cfg(not(target_arch = "arm"))]
-    atomic_store_non_seqcst = atomic_store(Ordering::Release);
-    atomic_store_seqcst = atomic_store(Ordering::SeqCst);
-}
-
-#[cold]
-pub(crate) unsafe fn atomic_compare_exchange(
-    dst: *mut Udw,
-    old: Udw,
-    new: Udw,
-    success: Ordering,
-    failure: Ordering,
-) -> (Udw, bool) {
-    debug_assert_outline_atomics!();
-    #[allow(clippy::cast_ptr_alignment)]
-    // SAFETY: the caller must uphold the safety contract.
-    unsafe {
-        match (*(dst as *const AtomicUdw)).compare_exchange(old, new, success, failure) {
-            Ok(v) => (v, true),
-            Err(v) => (v, false),
-        }
-    }
-}
-fn_alias! {
-    #[cold]
-    pub(crate) unsafe fn(dst: *mut Udw, old: Udw, new: Udw) -> (Udw, bool);
-    // fallback's atomic CAS has at least AcqRel semantics.
-    #[cfg(not(any(target_arch = "arm", target_arch = "x86_64")))]
-    atomic_compare_exchange_non_seqcst
-        = atomic_compare_exchange(Ordering::AcqRel, Ordering::Acquire);
-    atomic_compare_exchange_seqcst
-        = atomic_compare_exchange(Ordering::SeqCst, Ordering::SeqCst);
-}
-
-macro_rules! atomic_rmw_3 {
-    (
-        $name:ident($atomic_type:ident::$method_name:ident),
-        $non_seqcst_alias:ident, $seqcst_alias:ident
-    ) => {
-        #[cold]
-        pub(crate) unsafe fn $name(dst: *mut Udw, val: Udw, order: Ordering) -> Udw {
-            debug_assert_outline_atomics!();
-            #[allow(clippy::cast_ptr_alignment)]
-            // SAFETY: the caller must uphold the safety contract.
-            unsafe {
-                (*(dst as *const $atomic_type)).$method_name(val as _, order) as Udw
-            }
-        }
-        fn_alias! {
-            #[cold]
-            pub(crate) unsafe fn(dst: *mut Udw, val: Udw) -> Udw;
-            // fallback's atomic RMW has at least AcqRel semantics.
-            #[cfg(not(any(target_arch = "arm", target_arch = "x86_64")))]
-            $non_seqcst_alias = $name(Ordering::AcqRel);
-            $seqcst_alias = $name(Ordering::SeqCst);
-        }
-    };
-}
-macro_rules! atomic_rmw_2 {
-    (
-        $name:ident($atomic_type:ident::$method_name:ident),
-        $non_seqcst_alias:ident, $seqcst_alias:ident
-    ) => {
-        #[cold]
-        pub(crate) unsafe fn $name(dst: *mut Udw, order: Ordering) -> Udw {
-            debug_assert_outline_atomics!();
-            #[allow(clippy::cast_ptr_alignment)]
-            // SAFETY: the caller must uphold the safety contract.
-            unsafe {
-                (*(dst as *const $atomic_type)).$method_name(order) as Udw
-            }
-        }
-        fn_alias! {
-            #[cold]
-            pub(crate) unsafe fn(dst: *mut Udw) -> Udw;
-            // fallback's atomic RMW has at least AcqRel semantics.
-            #[cfg(not(any(target_arch = "arm", target_arch = "x86_64")))]
-            $non_seqcst_alias = $name(Ordering::AcqRel);
-            $seqcst_alias = $name(Ordering::SeqCst);
-        }
-    };
-}
-
-atomic_rmw_3!(atomic_swap(AtomicUdw::swap), atomic_swap_non_seqcst, atomic_swap_seqcst);
-atomic_rmw_3!(atomic_add(AtomicUdw::fetch_add), atomic_add_non_seqcst, atomic_add_seqcst);
-atomic_rmw_3!(atomic_sub(AtomicUdw::fetch_sub), atomic_sub_non_seqcst, atomic_sub_seqcst);
-atomic_rmw_3!(atomic_and(AtomicUdw::fetch_and), atomic_and_non_seqcst, atomic_and_seqcst);
-atomic_rmw_3!(atomic_nand(AtomicUdw::fetch_nand), atomic_nand_non_seqcst, atomic_nand_seqcst);
-atomic_rmw_3!(atomic_or(AtomicUdw::fetch_or), atomic_or_non_seqcst, atomic_or_seqcst);
-atomic_rmw_3!(atomic_xor(AtomicUdw::fetch_xor), atomic_xor_non_seqcst, atomic_xor_seqcst);
-atomic_rmw_3!(atomic_max(AtomicIdw::fetch_max), atomic_max_non_seqcst, atomic_max_seqcst);
-atomic_rmw_3!(atomic_umax(AtomicUdw::fetch_max), atomic_umax_non_seqcst, atomic_umax_seqcst);
-atomic_rmw_3!(atomic_min(AtomicIdw::fetch_min), atomic_min_non_seqcst, atomic_min_seqcst);
-atomic_rmw_3!(atomic_umin(AtomicUdw::fetch_min), atomic_umin_non_seqcst, atomic_umin_seqcst);
-
-atomic_rmw_2!(atomic_not(AtomicUdw::fetch_not), atomic_not_non_seqcst, atomic_not_seqcst);
-atomic_rmw_2!(atomic_neg(AtomicUdw::fetch_neg), atomic_neg_non_seqcst, atomic_neg_seqcst);