Mark scalar layout unions so that backends that do not support partially initialized scalars can special case them.

2022-03-03 12:02:12 +00:00
parent 2ed6786404
commit d32ce37a17
37 changed files with 356 additions and 288 deletions
--- a/compiler/rustc_codegen_llvm/src/consts.rs
+++ b/compiler/rustc_codegen_llvm/src/consts.rs
@@ -109,7 +109,10 @@ pub fn const_alloc_to_llvm<'ll>(cx: &CodegenCx<'ll, '_>, alloc: ConstAllocation<
                Pointer::new(alloc_id, Size::from_bytes(ptr_offset)),
                &cx.tcx,
            ),
-            Scalar { value: Primitive::Pointer, valid_range: WrappingRange { start: 0, end: !0 } },
+            Scalar::Initialized {
+                value: Primitive::Pointer,
+                valid_range: WrappingRange { start: 0, end: !0 },
+            },
            cx.type_i8p_ext(address_space),
        ));
        next_offset = offset + pointer_size;