Index: llvm/trunk/lib/Target/AMDGPU/Processors.td
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/Processors.td
+++ llvm/trunk/lib/Target/AMDGPU/Processors.td
@@ -135,7 +135,7 @@
 >;
 
 def : ProcessorModel<"carrizo", SIQuarterSpeedModel,
-  [FeatureVolcanicIslands, FeatureISAVersion8_0_1, FeatureLDSBankCount32]
+  [FeatureVolcanicIslands, FeatureISAVersion8_0_1, FeatureLDSBankCount32, FeatureXNACK]
 >;
 
 def : ProcessorModel<"fiji", SIQuarterSpeedModel,
@@ -143,7 +143,7 @@
 >;
 
 def : ProcessorModel<"stoney", SIQuarterSpeedModel,
-  [FeatureVolcanicIslands, FeatureISAVersion8_0_1, FeatureLDSBankCount16]
+  [FeatureVolcanicIslands, FeatureISAVersion8_0_1, FeatureLDSBankCount16, FeatureXNACK]
 >;
 
 def : ProcessorModel<"polaris10", SIQuarterSpeedModel,
Index: llvm/trunk/test/CodeGen/AMDGPU/flat-scratch-reg.ll
===================================================================
--- llvm/trunk/test/CodeGen/AMDGPU/flat-scratch-reg.ll
+++ llvm/trunk/test/CodeGen/AMDGPU/flat-scratch-reg.ll
@@ -1,6 +1,7 @@
 ; RUN: llc -march=amdgcn -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=NOXNACK -check-prefix=CI -check-prefix=GCN %s
 ; RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=NOXNACK -check-prefix=VI -check-prefix=GCN %s
-; RUN: llc -march=amdgcn -mcpu=carrizo -mattr=+xnack -verify-machineinstrs < %s | FileCheck -check-prefix=XNACK -check-prefix=VI  -check-prefix=GCN %s
+; RUN: llc -march=amdgcn -mcpu=carrizo -verify-machineinstrs < %s | FileCheck -check-prefix=XNACK -check-prefix=VI  -check-prefix=GCN %s
+; RUN: llc -march=amdgcn -mcpu=stoney -verify-machineinstrs < %s | FileCheck -check-prefix=XNACK -check-prefix=VI  -check-prefix=GCN %s
 
 ; RUN: llc -march=amdgcn -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=NOXNACK -check-prefix=HSA-NOXNACK -check-prefix=HSA -check-prefix=GCN %s
 ; RUN: llc -march=amdgcn -mtriple=amdgcn--amdhsa -mcpu=carrizo -mattr=-xnack -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=NOXNACK -check-prefix=HSA-NOXNACK -check-prefix=HSA -check-prefix=GCN %s