use AllocId and Ty in ExprKind::StaticRef and delay ConstValue construction

2 files changed, 7 insertions, 15 deletions

diff --git a/compiler/rustc_mir_build/src/build/expr/as_constant.rs b/compiler/rustc_mir_build/src/build/expr/as_constant.rs
index 1136844377a..0c0b0f2bd05 100644
--- a/compiler/rustc_mir_build/src/build/expr/as_constant.rs
+++ b/compiler/rustc_mir_build/src/build/expr/as_constant.rs
@@ -1,6 +1,7 @@
 //! See docs in build/expr/mod.rs
 
 use crate::build::Builder;
+use rustc_middle::mir::interpret::{ConstValue, Scalar};
 use rustc_middle::mir::*;
 use rustc_middle::thir::*;
 use rustc_middle::ty::CanonicalUserTypeAnnotation;
@@ -26,11 +27,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                 assert_eq!(literal.ty(), ty);
                 Constant { span, user_ty, literal: literal.into() }
             }
-            ExprKind::StaticRef { literal, .. } => {
-                let const_val = literal.val.try_to_value().unwrap_or_else(|| {
-                    bug!("expected `ConstKind::Value`, but found {:?}", literal.val)
-                });
-                let literal = ConstantKind::Val(const_val, literal.ty);
+            ExprKind::StaticRef { alloc_id, ty, .. } => {
+                let const_val =
+                    ConstValue::Scalar(Scalar::from_pointer(alloc_id.into(), &this.tcx));
+                let literal = ConstantKind::Val(const_val, ty);
 
                 Constant { span, user_ty: None, literal }
             }
diff --git a/compiler/rustc_mir_build/src/thir/cx/expr.rs b/compiler/rustc_mir_build/src/thir/cx/expr.rs
index 29216776de1..829dec74803 100644
--- a/compiler/rustc_mir_build/src/thir/cx/expr.rs
+++ b/compiler/rustc_mir_build/src/thir/cx/expr.rs
@@ -8,7 +8,6 @@ use rustc_middle::hir::place::Place as HirPlace;
 use rustc_middle::hir::place::PlaceBase as HirPlaceBase;
 use rustc_middle::hir::place::ProjectionKind as HirProjectionKind;
 use rustc_middle::middle::region;
-use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::mir::{BinOp, BorrowKind, Field, UnOp};
 use rustc_middle::thir::*;
 use rustc_middle::ty::adjustment::{
@@ -943,15 +942,8 @@ impl<'tcx> Cx<'tcx> {
                 let kind = if self.tcx.is_thread_local_static(id) {
                     ExprKind::ThreadLocalRef(id)
                 } else {
-                    let ptr = self.tcx.create_static_alloc(id);
-                    ExprKind::StaticRef {
-                        literal: ty::Const::from_scalar(
-                            self.tcx,
-                            Scalar::from_pointer(ptr.into(), &self.tcx),
-                            ty,
-                        ),
-                        def_id: id,
-                    }
+                    let alloc_id = self.tcx.create_static_alloc(id);
+                    ExprKind::StaticRef { alloc_id, ty, def_id: id }
                 };
                 ExprKind::Deref {
                     arg: self.thir.exprs.push(Expr { ty, temp_lifetime, span: expr.span, kind }),