diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs
index 36bf89ed4f35..f17927484648 100644
--- a/compiler/rustc_target/src/target_features.rs
+++ b/compiler/rustc_target/src/target_features.rs
@@ -984,8 +984,11 @@ const RISCV_FEATURES_FOR_CORRECT_FIXED_LENGTH_VECTOR_ABI: &'static [(u64, &'stat
 const SPARC_FEATURES_FOR_CORRECT_FIXED_LENGTH_VECTOR_ABI: &'static [(u64, &'static str)] =
     &[/*(64, "vis")*/];
 
-const HEXAGON_FEATURES_FOR_CORRECT_FIXED_LENGTH_VECTOR_ABI: &'static [(u64, &'static str)] =
-    &[(512, "hvx-length64b"), (1024, "hvx-length128b")];
+const HEXAGON_FEATURES_FOR_CORRECT_FIXED_LENGTH_VECTOR_ABI: &'static [(u64, &'static str)] = &[
+    (512, "hvx-length64b"),   // HvxVector in 64-byte mode
+    (1024, "hvx-length128b"), // HvxVector in 128-byte mode, or HvxVectorPair in 64-byte mode
+    (2048, "hvx-length128b"), // HvxVectorPair in 128-byte mode
+];
 const MIPS_FEATURES_FOR_CORRECT_FIXED_LENGTH_VECTOR_ABI: &'static [(u64, &'static str)] =
     &[(128, "msa")];
 const CSKY_FEATURES_FOR_CORRECT_FIXED_LENGTH_VECTOR_ABI: &'static [(u64, &'static str)] =