1 files changed, 2 insertions, 1 deletions
diff --git a/src/arch/arm/isa/formats/aarch64.isa b/src/arch/arm/isa/formats/aarch64.isa
index 1b9a86cad..7752ba08f 100644
--- a/src/arch/arm/isa/formats/aarch64.isa
+++ b/src/arch/arm/isa/formats/aarch64.isa
@@ -1897,6 +1897,7 @@ namespace Aarch64
                         return new Unknown64(machInst);
                     }
                 }
+                M5_UNREACHABLE;
               case 0x1:
               {
                 if (bits(machInst, 31) ||
@@ -2005,7 +2006,7 @@ namespace Aarch64
                 M5_UNREACHABLE;
             }
         }
-        return new FailUnimplemented("Unhandled Case4", machInst);
+        M5_UNREACHABLE;
     }
 }
 }};