1 files changed, 19 insertions, 0 deletions
diff --git a/compiler/rustc_hir/src/attrs/data_structures.rs b/compiler/rustc_hir/src/attrs/data_structures.rs
index 510fc832978..31715955ed3 100644
--- a/compiler/rustc_hir/src/attrs/data_structures.rs
+++ b/compiler/rustc_hir/src/attrs/data_structures.rs
@@ -205,6 +205,22 @@ pub enum Linkage {
     WeakODR,
 }
 
+#[derive(Clone, Copy, Decodable, Debug, Encodable, PartialEq)]
+#[derive(HashStable_Generic, PrintAttribute)]
+pub enum MirDialect {
+    Analysis,
+    Built,
+    Runtime,
+}
+
+#[derive(Clone, Copy, Decodable, Debug, Encodable, PartialEq)]
+#[derive(HashStable_Generic, PrintAttribute)]
+pub enum MirPhase {
+    Initial,
+    PostCleanup,
+    Optimized,
+}
+
 /// Represents parsed *built-in* inert attributes.
 ///
 /// ## Overview
@@ -324,6 +340,9 @@ pub enum AttributeKind {
     /// Represents `#[coverage(..)]`.
     Coverage(Span, CoverageAttrKind),
 
+    /// Represents `#[custom_mir]`.
+    CustomMir(Option<(MirDialect, Span)>, Option<(MirPhase, Span)>, Span),
+
     ///Represents `#[rustc_deny_explicit_impl]`.
     DenyExplicitImpl(Span),