use AllocId instead of Allocation in ConstValue::ByRef

1 files changed, 3 insertions, 1 deletions

diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs
index ef66aa6ce1c..18c3fd0f1d1 100644
--- a/compiler/rustc_codegen_ssa/src/mir/operand.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs
@@ -116,7 +116,9 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> {
                 let b_llval = bx.const_usize((end - start) as u64);
                 OperandValue::Pair(a_llval, b_llval)
             }
-            ConstValue::ByRef { alloc, offset } => {
+            ConstValue::ByRef { alloc_id, offset } => {
+                let alloc = bx.tcx().global_alloc(alloc_id).unwrap_memory();
+                // FIXME: should we attempt to avoid building the same AllocId multiple times?
                 return Self::from_const_alloc(bx, layout, alloc, offset);
             }
         };