diff --git a/lib/Target/R600/AMDGPUSubtarget.h b/lib/Target/R600/AMDGPUSubtarget.h
index 57a084e..b3d2fb6 100644
--- a/lib/Target/R600/AMDGPUSubtarget.h
+++ b/lib/Target/R600/AMDGPUSubtarget.h
@@ -231,7 +231,7 @@ public:
   unsigned getAmdKernelCodeChipID() const;
 
   bool enableMachineScheduler() const override {
-    return true;
+    return getGeneration() != SOUTHERN_ISLANDS;
   }
 
   void overrideSchedPolicy(MachineSchedPolicy &Policy,