use `TypingEnv` when no `infcx` is available

the behavior of the type system not only depends on the current
assumptions, but also the currentnphase of the compiler. This is
mostly necessary as we need to decide whether and how to reveal
opaque types. We track this via the `TypingMode`.

1 files changed, 1 insertions, 1 deletions

diff --git a/compiler/rustc_codegen_gcc/src/consts.rs b/compiler/rustc_codegen_gcc/src/consts.rs
index 07c7a54de1c..6dc2f4ed668 100644
--- a/compiler/rustc_codegen_gcc/src/consts.rs
+++ b/compiler/rustc_codegen_gcc/src/consts.rs
@@ -215,7 +215,7 @@ impl<'gcc, 'tcx> CodegenCx<'gcc, 'tcx> {
         let gcc_type = if nested {
             self.type_i8()
         } else {
-            let ty = instance.ty(self.tcx, ty::ParamEnv::reveal_all());
+            let ty = instance.ty(self.tcx, ty::TypingEnv::fully_monomorphized());
             self.layout_of(ty).gcc_type(self)
         };