From 821f4a9dfb38dab30df861d3c19788b2e7ed0d95 Mon Sep 17 00:00:00 2001
From: Ben Lewis <benlewisj@gmail.com>
Date: Sat, 15 Feb 2020 17:43:14 +1300
Subject: [PATCH] Monomorphize const type during codegen.

---
 src/librustc_codegen_ssa/mir/constant.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/librustc_codegen_ssa/mir/constant.rs b/src/librustc_codegen_ssa/mir/constant.rs
index 8722aacca721..3bd1755927bc 100644
--- a/src/librustc_codegen_ssa/mir/constant.rs
+++ b/src/librustc_codegen_ssa/mir/constant.rs
@@ -30,7 +30,8 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
             }
             _ => {
                 let val = self.eval_mir_constant(constant)?;
-                Ok(OperandRef::from_const(bx, val.clone(), constant.literal.ty))
+                let ty = self.monomorphize(&constant.literal.ty);
+                Ok(OperandRef::from_const(bx, val.clone(), ty))
             }
         }
     }