Rollup merge of #129666 - RalfJung:raw-eq-align, r=compiler-errors

interpret: add missing alignment check in raw_eq

The intrinsic requires alignment, but we forgot to check for that in Miri and const-eval.

1 files changed, 5 insertions, 5 deletions

diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
index aef39b9af2f..bedc56de0da 100644
--- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs
+++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
@@ -684,19 +684,19 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
         assert!(layout.is_sized());
 
         let get_bytes = |this: &InterpCx<'tcx, M>,
-                         op: &OpTy<'tcx, <M as Machine<'tcx>>::Provenance>,
-                         size|
+                         op: &OpTy<'tcx, <M as Machine<'tcx>>::Provenance>|
          -> InterpResult<'tcx, &[u8]> {
             let ptr = this.read_pointer(op)?;
-            let Some(alloc_ref) = self.get_ptr_alloc(ptr, size)? else {
+            this.check_ptr_align(ptr, layout.align.abi)?;
+            let Some(alloc_ref) = self.get_ptr_alloc(ptr, layout.size)? else {
                 // zero-sized access
                 return Ok(&[]);
             };
             alloc_ref.get_bytes_strip_provenance()
         };
 
-        let lhs_bytes = get_bytes(self, lhs, layout.size)?;
-        let rhs_bytes = get_bytes(self, rhs, layout.size)?;
+        let lhs_bytes = get_bytes(self, lhs)?;
+        let rhs_bytes = get_bytes(self, rhs)?;
         Ok(Scalar::from_bool(lhs_bytes == rhs_bytes))
     }
 }