Auto merge of #60166 - oli-obk:type_name, r=eddyb

Make the `type_name` intrinsic deterministic

cc @eddyb for the printing infrastructure
cc @Centril for the deterministic (coherent?) output

r? @sfackler

1 files changed, 2 insertions, 3 deletions

diff --git a/src/librustc_codegen_llvm/intrinsic.rs b/src/librustc_codegen_llvm/intrinsic.rs
index 9ae0e26196d..060c295eb7a 100644
--- a/src/librustc_codegen_llvm/intrinsic.rs
+++ b/src/librustc_codegen_llvm/intrinsic.rs
@@ -20,7 +20,6 @@ use rustc::ty::layout::{self, LayoutOf, HasTyCtxt, Primitive};
 use rustc_codegen_ssa::common::{IntPredicate, TypeKind};
 use rustc::hir;
 use syntax::ast::{self, FloatTy};
-use syntax::symbol::LocalInternedString;
 
 use rustc_codegen_ssa::traits::*;
 
@@ -213,8 +212,8 @@ impl IntrinsicCallMethods<'tcx> for Builder<'a, 'll, 'tcx> {
             }
             "type_name" => {
                 let tp_ty = substs.type_at(0);
-                let ty_name = LocalInternedString::intern(&tp_ty.to_string());
-                self.const_str_slice(ty_name)
+                let ty_name = rustc_mir::interpret::type_name(self.tcx, tp_ty);
+                OperandRef::from_const(self, ty_name).immediate_or_packed_pair(self)
             }
             "type_id" => {
                 self.const_u64(self.tcx.type_id_hash(substs.type_at(0)))