104 lines
4.3 KiB
Diff
104 lines
4.3 KiB
Diff
From 894e07dfec2624ba539129b1c1d63e1d7d812bda Mon Sep 17 00:00:00 2001
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From: bjorn3 <bjorn3@users.noreply.github.com>
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Date: Thu, 18 Feb 2021 18:45:28 +0100
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Subject: [PATCH] Disable 128bit atomic operations
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Cranelift doesn't support them yet
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---
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library/core/src/sync/atomic.rs | 38 ---------------------------------
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library/core/tests/atomic.rs | 4 ----
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library/std/src/panic.rs | 6 ------
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3 files changed, 48 deletions(-)
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diff --git a/library/core/src/sync/atomic.rs b/library/core/src/sync/atomic.rs
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index 81c9e1d..65c9503 100644
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--- a/library/core/src/sync/atomic.rs
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+++ b/library/core/src/sync/atomic.rs
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@@ -2228,44 +2228,6 @@ atomic_int! {
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"AtomicU64::new(0)",
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u64 AtomicU64 ATOMIC_U64_INIT
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}
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-#[cfg(target_has_atomic_load_store = "128")]
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-atomic_int! {
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- cfg(target_has_atomic = "128"),
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- cfg(target_has_atomic_equal_alignment = "128"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- rustc_const_stable(feature = "const_integer_atomics", since = "1.34.0"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- "i128",
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- "#![feature(integer_atomics)]\n\n",
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- atomic_min, atomic_max,
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- 16,
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- "AtomicI128::new(0)",
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- i128 AtomicI128 ATOMIC_I128_INIT
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-}
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-#[cfg(target_has_atomic_load_store = "128")]
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-atomic_int! {
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- cfg(target_has_atomic = "128"),
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- cfg(target_has_atomic_equal_alignment = "128"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- rustc_const_stable(feature = "const_integer_atomics", since = "1.34.0"),
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- unstable(feature = "integer_atomics", issue = "32976"),
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- "u128",
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- "#![feature(integer_atomics)]\n\n",
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- atomic_umin, atomic_umax,
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- 16,
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- "AtomicU128::new(0)",
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- u128 AtomicU128 ATOMIC_U128_INIT
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-}
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macro_rules! atomic_int_ptr_sized {
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( $($target_pointer_width:literal $align:literal)* ) => { $(
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diff --git a/library/core/tests/atomic.rs b/library/core/tests/atomic.rs
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index 2d1e449..cb6da5d 100644
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--- a/library/core/tests/atomic.rs
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+++ b/library/core/tests/atomic.rs
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@@ -145,10 +145,6 @@ fn atomic_alignment() {
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assert_eq!(align_of::<AtomicU64>(), size_of::<AtomicU64>());
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#[cfg(target_has_atomic = "64")]
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assert_eq!(align_of::<AtomicI64>(), size_of::<AtomicI64>());
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- #[cfg(target_has_atomic = "128")]
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- assert_eq!(align_of::<AtomicU128>(), size_of::<AtomicU128>());
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- #[cfg(target_has_atomic = "128")]
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- assert_eq!(align_of::<AtomicI128>(), size_of::<AtomicI128>());
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#[cfg(target_has_atomic = "ptr")]
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assert_eq!(align_of::<AtomicUsize>(), size_of::<AtomicUsize>());
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#[cfg(target_has_atomic = "ptr")]
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diff --git a/library/std/src/panic.rs b/library/std/src/panic.rs
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index 89a822a..779fd88 100644
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--- a/library/std/src/panic.rs
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+++ b/library/std/src/panic.rs
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@@ -279,9 +279,6 @@ impl RefUnwindSafe for atomic::AtomicI32 {}
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#[cfg(target_has_atomic_load_store = "64")]
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#[stable(feature = "integer_atomics_stable", since = "1.34.0")]
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impl RefUnwindSafe for atomic::AtomicI64 {}
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-#[cfg(target_has_atomic_load_store = "128")]
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-#[unstable(feature = "integer_atomics", issue = "32976")]
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-impl RefUnwindSafe for atomic::AtomicI128 {}
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#[cfg(target_has_atomic_load_store = "ptr")]
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#[stable(feature = "unwind_safe_atomic_refs", since = "1.14.0")]
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@@ -298,9 +295,6 @@ impl RefUnwindSafe for atomic::AtomicU32 {}
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#[cfg(target_has_atomic_load_store = "64")]
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#[stable(feature = "integer_atomics_stable", since = "1.34.0")]
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impl RefUnwindSafe for atomic::AtomicU64 {}
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-#[cfg(target_has_atomic_load_store = "128")]
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-#[unstable(feature = "integer_atomics", issue = "32976")]
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-impl RefUnwindSafe for atomic::AtomicU128 {}
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#[cfg(target_has_atomic_load_store = "8")]
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#[stable(feature = "unwind_safe_atomic_refs", since = "1.14.0")]
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--
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2.26.2.7.g19db9cfb68
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