Merge commit 'ba315abda7' into sync_cg_clif-2025-03-30

compiler/rustc_codegen_cranelift/patches/0027-sysroot_tests-128bit-atomic-operations.patch

@@ -0,0 +1,40 @@
+From ad7ffe71baba46865f2e65266ab025920dfdc20b Mon Sep 17 00:00:00 2001
+From: bjorn3 <bjorn3@users.noreply.github.com>
+Date: Thu, 18 Feb 2021 18:45:28 +0100
+Subject: [PATCH] Disable 128bit atomic operations
+
+Cranelift doesn't support them yet
+---
+ library/core/src/panic/unwind_safe.rs |  6 -----
+ library/core/src/sync/atomic.rs       | 38 ---------------------------
+ library/core/tests/atomic.rs          |  4 ---
+ 4 files changed, 4 insertions(+), 50 deletions(-)
+
+diff --git a/coretests/tests/lib.rs b/coretests/tests/lib.rs
+index 1e336bf..35e6f54 100644
+--- a/coretests/tests/lib.rs
++++ b/coretests/tests/lib.rs
+@@ -2,5 +2,4 @@
+ // tidy-alphabetical-start
+-#![cfg_attr(target_has_atomic = "128", feature(integer_atomics))]
+ #![cfg_attr(test, feature(cfg_match))]
+ #![feature(alloc_layout_extra)]
+ #![feature(array_chunks)]
+diff --git a/coretests/tests/atomic.rs b/coretests/tests/atomic.rs
+index b735957..ea728b6 100644
+--- a/coretests/tests/atomic.rs
++++ b/coretests/tests/atomic.rs
+@@ -185,10 +185,6 @@ fn atomic_alignment() {
+     assert_eq!(align_of::<AtomicU64>(), size_of::<AtomicU64>());
+     #[cfg(target_has_atomic = "64")]
+     assert_eq!(align_of::<AtomicI64>(), size_of::<AtomicI64>());
+-    #[cfg(target_has_atomic = "128")]
+-    assert_eq!(align_of::<AtomicU128>(), size_of::<AtomicU128>());
+-    #[cfg(target_has_atomic = "128")]
+-    assert_eq!(align_of::<AtomicI128>(), size_of::<AtomicI128>());
+     #[cfg(target_has_atomic = "ptr")]
+     assert_eq!(align_of::<AtomicUsize>(), size_of::<AtomicUsize>());
+     #[cfg(target_has_atomic = "ptr")]
+--
+2.26.2.7.g19db9cfb68
+