Resolve worsened debug build codegen

[rust.git] / src / librustc_mir / transform / const_prop.rs

diff --git a/src/librustc_mir/transform/const_prop.rs b/src/librustc_mir/transform/const_prop.rs
index 8d7cafc34b3566ff2270006b292d743d89b4f3cf..1c6ae0918c7a1396beee6613419a7ca29222c7f5 100644 (file)
--- a/src/librustc_mir/transform/const_prop.rs
+++ b/src/librustc_mir/transform/const_prop.rs
@@ -324,14 +324,7 @@ fn new(
     ) -> ConstPropagator<'mir, 'tcx> {
         let def_id = source.def_id();
         let substs = &InternalSubsts::identity_for_item(tcx, def_id);
-        let mut param_env = tcx.param_env(def_id);
-
-        // If we're evaluating inside a monomorphic function, then use `Reveal::All` because
-        // we want to see the same instances that codegen will see. This allows us to `resolve()`
-        // specializations.
-        if !substs.needs_subst() {
-            param_env = param_env.with_reveal_all();
-        }
+        let param_env = tcx.param_env(def_id).with_reveal_all();
 
         let span = tcx.def_span(def_id);
         let mut ecx = InterpCx::new(tcx.at(span), param_env, ConstPropMachine, ());