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-rw-r--r--src/librustc_middle/ty/mod.rs5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/librustc_middle/ty/mod.rs b/src/librustc_middle/ty/mod.rs
index fde99f5c270..ffb41b094dc 100644
--- a/src/librustc_middle/ty/mod.rs
+++ b/src/librustc_middle/ty/mod.rs
@@ -1621,8 +1621,9 @@ impl<'tcx> fmt::Debug for ParamEnv<'tcx> {
 
 impl<'tcx> Hash for ParamEnv<'tcx> {
     fn hash<H: Hasher>(&self, state: &mut H) {
-        self.caller_bounds().hash(state);
-        self.reveal().hash(state);
+        // List hashes as the raw pointer, so we can skip splitting into the
+        // pointer and the enum.
+        self.packed_data.hash(state);
         self.def_id.hash(state);
     }
 }