Index: cfe/trunk/lib/Basic/Targets.cpp
===================================================================
--- cfe/trunk/lib/Basic/Targets.cpp
+++ cfe/trunk/lib/Basic/Targets.cpp
@@ -1689,6 +1689,9 @@
     GK_SM30,
     GK_SM35,
     GK_SM37,
+    GK_SM50,
+    GK_SM52,
+    GK_SM53,
   } GPU;
 
 public:
@@ -1787,6 +1790,15 @@
       case GK_SM37:
         CUDAArchCode = "370";
         break;
+      case GK_SM50:
+        CUDAArchCode = "500";
+        break;
+      case GK_SM52:
+        CUDAArchCode = "520";
+        break;
+      case GK_SM53:
+        CUDAArchCode = "530";
+        break;
       default:
         llvm_unreachable("Unhandled target CPU");
       }
@@ -1836,6 +1848,9 @@
               .Case("sm_30", GK_SM30)
               .Case("sm_35", GK_SM35)
               .Case("sm_37", GK_SM37)
+              .Case("sm_50", GK_SM50)
+              .Case("sm_52", GK_SM52)
+              .Case("sm_53", GK_SM53)
               .Default(GK_NONE);
 
     return GPU != GK_NONE;
Index: cfe/trunk/lib/Driver/ToolChains.cpp
===================================================================
--- cfe/trunk/lib/Driver/ToolChains.cpp
+++ cfe/trunk/lib/Driver/ToolChains.cpp
@@ -1750,6 +1750,10 @@
       } else if (GpuArch == "compute_35") {
         CudaLibDeviceMap["sm_35"] = FilePath;
         CudaLibDeviceMap["sm_37"] = FilePath;
+      } else if (GpuArch == "compute_50") {
+        CudaLibDeviceMap["sm_50"] = FilePath;
+        CudaLibDeviceMap["sm_52"] = FilePath;
+        CudaLibDeviceMap["sm_53"] = FilePath;
       }
     }
 
Index: cfe/trunk/test/CodeGen/nvptx-cpus.c
===================================================================
--- cfe/trunk/test/CodeGen/nvptx-cpus.c
+++ cfe/trunk/test/CodeGen/nvptx-cpus.c
@@ -3,6 +3,9 @@
 // RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_30 -O3 -S -o %t %s -emit-llvm
 // RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_35 -O3 -S -o %t %s -emit-llvm
 // RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_37 -O3 -S -o %t %s -emit-llvm
+// RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_50 -O3 -S -o %t %s -emit-llvm
+// RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_52 -O3 -S -o %t %s -emit-llvm
+// RUN: %clang_cc1 -triple nvptx-unknown-unknown -target-cpu sm_53 -O3 -S -o %t %s -emit-llvm
 
 // Make sure clang accepts all supported architectures.