Merge commit '4b5c44b14166083eef8d71f15f5ea1f53fc976a0' into subtree-update_cg_gcc_2025-06-30

compiler/rustc_codegen_gcc/src/context.rs

@@ -124,14 +124,6 @@ pub struct CodegenCx<'gcc, 'tcx> {
 
     pub pointee_infos: RefCell<FxHashMap<(Ty<'tcx>, Size), Option<PointeeInfo>>>,
 
-    /// NOTE: a hack is used because the rustc API is not suitable to libgccjit and as such,
-    /// `const_undef()` returns struct as pointer so that they can later be assigned a value (in
-    /// e.g. Builder::insert_value).
-    /// As such, this set remembers which of these pointers were returned by this function so that
-    /// they can be dereferenced later.
-    /// FIXME(antoyo): fix the rustc API to avoid having this hack.
-    pub structs_as_pointer: RefCell<FxHashSet<RValue<'gcc>>>,
-
     #[cfg(feature = "master")]
     pub cleanup_blocks: RefCell<FxHashSet<Block<'gcc>>>,
     /// The alignment of a u128/i128 type.
@@ -304,7 +296,6 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
             #[cfg(feature = "master")]
             rust_try_fn: Cell::new(None),
             pointee_infos: Default::default(),
-            structs_as_pointer: Default::default(),
             #[cfg(feature = "master")]
             cleanup_blocks: Default::default(),
         };