Rustup to rustc 1.62.0-nightly (70b3681 2022-05-14)

Author: bjorn3

patches/0027-sysroot-128bit-atomic-operations.patch

@@ -21,7 +21,7 @@ index 092b7cf..158cf71 100644
 -#[cfg(target_has_atomic_load_store = "128")]
 -#[unstable(feature = "integer_atomics", issue = "32976")]
 -impl RefUnwindSafe for crate::sync::atomic::AtomicI128 {}
- 
+
  #[cfg(target_has_atomic_load_store = "ptr")]
  #[stable(feature = "unwind_safe_atomic_refs", since = "1.14.0")]
 @@ -235,9 +232,6 @@ impl RefUnwindSafe for crate::sync::atomic::AtomicU32 {}
@@ -31,14 +31,14 @@ index 092b7cf..158cf71 100644
 -#[cfg(target_has_atomic_load_store = "128")]
 -#[unstable(feature = "integer_atomics", issue = "32976")]
 -impl RefUnwindSafe for crate::sync::atomic::AtomicU128 {}
- 
+
  #[cfg(target_has_atomic_load_store = "8")]
  #[stable(feature = "unwind_safe_atomic_refs", since = "1.14.0")]
 diff --git a/library/core/src/sync/atomic.rs b/library/core/src/sync/atomic.rs
 index d9de37e..8293fce 100644
 --- a/library/core/src/sync/atomic.rs
 +++ b/library/core/src/sync/atomic.rs
-@@ -2234,44 +2234,6 @@ atomic_int! {
+@@ -2234,46 +2234,6 @@ atomic_int! {
      "AtomicU64::new(0)",
      u64 AtomicU64 ATOMIC_U64_INIT
  }
@@ -54,6 +54,7 @@ index d9de37e..8293fce 100644
 -    unstable(feature = "integer_atomics", issue = "32976"),
 -    rustc_const_stable(feature = "const_integer_atomics", since = "1.34.0"),
 -    unstable(feature = "integer_atomics", issue = "32976"),
+-    cfg_attr(not(test), rustc_diagnostic_item = "AtomicI128"),
 -    "i128",
 -    "#![feature(integer_atomics)]\n\n",
 -    atomic_min, atomic_max,
@@ -73,6 +74,7 @@ index d9de37e..8293fce 100644
 -    unstable(feature = "integer_atomics", issue = "32976"),
 -    rustc_const_stable(feature = "const_integer_atomics", since = "1.34.0"),
 -    unstable(feature = "integer_atomics", issue = "32976"),
+-    cfg_attr(not(test), rustc_diagnostic_item = "AtomicU128"),
 -    "u128",
 -    "#![feature(integer_atomics)]\n\n",
 -    atomic_umin, atomic_umax,
@@ -98,6 +100,6 @@ index b735957..ea728b6 100644
      #[cfg(target_has_atomic = "ptr")]
      assert_eq!(align_of::<AtomicUsize>(), size_of::<AtomicUsize>());
      #[cfg(target_has_atomic = "ptr")]
--- 
+--
 2.26.2.7.g19db9cfb68
 

rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2022-05-07"
+channel = "nightly-2022-05-15"
 components = ["rust-src", "rustc-dev", "llvm-tools-preview"]

src/intrinsics/mod.rs

@@ -715,19 +715,19 @@ fn codegen_regular_intrinsic_call<'tcx>(
 
         ptr_offset_from | ptr_offset_from_unsigned, (v ptr, v base) {
             let ty = substs.type_at(0);
-            let isize_layout = fx.layout_of(fx.tcx.types.isize);
 
             let pointee_size: u64 = fx.layout_of(ty).size.bytes();
             let diff_bytes = fx.bcx.ins().isub(ptr, base);
             // FIXME this can be an exact division.
-            let diff = if intrinsic == sym::ptr_offset_from_unsigned {
+            let val = if intrinsic == sym::ptr_offset_from_unsigned {
+                let usize_layout = fx.layout_of(fx.tcx.types.usize);
                 // Because diff_bytes ULE isize::MAX, this would be fine as signed,
                 // but unsigned is slightly easier to codegen, so might as well.
-                fx.bcx.ins().udiv_imm(diff_bytes, pointee_size as i64)
+                CValue::by_val(fx.bcx.ins().udiv_imm(diff_bytes, pointee_size as i64), usize_layout)
             } else {
-                fx.bcx.ins().sdiv_imm(diff_bytes, pointee_size as i64)
+                let isize_layout = fx.layout_of(fx.tcx.types.isize);
+                CValue::by_val(fx.bcx.ins().sdiv_imm(diff_bytes, pointee_size as i64), isize_layout)
             };
-            let val = CValue::by_val(diff, isize_layout);
             ret.write_cvalue(fx, val);
         };