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-rw-r--r--compiler/rustc_middle/src/mir/mod.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs
index 4e6f5c3fb4e..1e5a7401c6f 100644
--- a/compiler/rustc_middle/src/mir/mod.rs
+++ b/compiler/rustc_middle/src/mir/mod.rs
@@ -737,6 +737,7 @@ impl SourceInfo {
 rustc_index::newtype_index! {
     #[derive(HashStable)]
     #[encodable]
+    #[orderable]
     #[debug_format = "_{}"]
     pub struct Local {
         const RETURN_PLACE = 0;
@@ -1173,6 +1174,7 @@ rustc_index::newtype_index! {
     /// [guide-mir]: https://rustc-dev-guide.rust-lang.org/mir/
     #[derive(HashStable)]
     #[encodable]
+    #[orderable]
     #[debug_format = "bb{}"]
     pub struct BasicBlock {
         const START_BLOCK = 0;
@@ -1537,6 +1539,7 @@ impl UserTypeProjection {
 rustc_index::newtype_index! {
     #[derive(HashStable)]
     #[encodable]
+    #[orderable]
     #[debug_format = "promoted[{}]"]
     pub struct Promoted {}
 }