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-rw-r--r--compiler/rustc_codegen_ssa/src/mir/constant.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_ssa/src/mir/constant.rs b/compiler/rustc_codegen_ssa/src/mir/constant.rs
index 47a166e4e1b..babcf9bee24 100644
--- a/compiler/rustc_codegen_ssa/src/mir/constant.rs
+++ b/compiler/rustc_codegen_ssa/src/mir/constant.rs
@@ -65,7 +65,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
         &self,
         constant: &mir::Constant<'tcx>,
     ) -> Result<Option<ty::ValTree<'tcx>>, ErrorHandled> {
-        let uv = match constant.literal {
+        let uv = match self.monomorphize(constant.literal) {
             mir::ConstantKind::Unevaluated(uv, _) => uv.shrink(),
             mir::ConstantKind::Ty(c) => match c.kind() {
                 // A constant that came from a const generic but was then used as an argument to old-style