Index: include/clang/Driver/Options.td
===================================================================
--- include/clang/Driver/Options.td
+++ include/clang/Driver/Options.td
@@ -518,7 +518,7 @@
 def cl_no_signed_zeros : Flag<["-"], "cl-no-signed-zeros">, Group<opencl_Group>, Flags<[CC1Option]>,
   HelpText<"OpenCL only. Allow use of less precise no signed zeros computations in the generated binary.">;
 def cl_std_EQ : Joined<["-"], "cl-std=">, Group<opencl_Group>, Flags<[CC1Option]>,
-  HelpText<"OpenCL language standard to compile for.">, Values<"cl,CL,cl1.1,CL1.1,cl1.2,CL1.2,cl2.0,CL2.0,c++">;
+  HelpText<"OpenCL language standard to compile for.">, Values<"cl,CL,cl1.1,CL1.1,cl1.2,CL1.2,cl2.0,CL2.0,clc++,CLC++">;
 def cl_denorms_are_zero : Flag<["-"], "cl-denorms-are-zero">, Group<opencl_Group>, Flags<[CC1Option]>,
   HelpText<"OpenCL only. Allow denormals to be flushed to zero.">;
 def cl_fp32_correctly_rounded_divide_sqrt : Flag<["-"], "cl-fp32-correctly-rounded-divide-sqrt">, Group<opencl_Group>, Flags<[CC1Option]>,
Index: include/clang/Frontend/LangStandards.def
===================================================================
--- include/clang/Frontend/LangStandards.def
+++ include/clang/Frontend/LangStandards.def
@@ -174,6 +174,7 @@
 LANGSTANDARD_ALIAS_DEPR(opencl11, "CL1.1")
 LANGSTANDARD_ALIAS_DEPR(opencl12, "CL1.2")
 LANGSTANDARD_ALIAS_DEPR(opencl20, "CL2.0")
+LANGSTANDARD_ALIAS_DEPR(openclcpp, "CLC++")
 
 // CUDA
 LANGSTANDARD(cuda, "cuda", CUDA, "NVIDIA CUDA(tm)",
Index: lib/Frontend/CompilerInvocation.cpp
===================================================================
--- lib/Frontend/CompilerInvocation.cpp
+++ lib/Frontend/CompilerInvocation.cpp
@@ -2431,7 +2431,7 @@
         .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
         .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
         .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
-        .Case("c++", LangStandard::lang_openclcpp)
+        .Cases("clc++", "CLC++", LangStandard::lang_openclcpp)
         .Default(LangStandard::lang_unspecified);
 
     if (OpenCLLangStd == LangStandard::lang_unspecified) {
Index: test/CodeGenCXX/mangle-address-space.cpp
===================================================================
--- test/CodeGenCXX/mangle-address-space.cpp
+++ test/CodeGenCXX/mangle-address-space.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s --check-prefixes=CHECK,CHECKNOOCL
 // RUN: %clang_cc1 -emit-llvm -triple x86_64-windows-msvc -o - %s | FileCheck %s --check-prefixes=WIN,WINNOOCL
-// RUN: %clang_cc1 -cl-std=c++ -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s --check-prefixes=CHECK,CHECKOCL
-// RUN: %clang_cc1 -cl-std=c++ -emit-llvm -triple x86_64-windows-msvc -o - %s | FileCheck %s --check-prefixes=WIN,WINOCL
+// RUN: %clang_cc1 -cl-std=clc++ -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s --check-prefixes=CHECK,CHECKOCL
+// RUN: %clang_cc1 -cl-std=clc++ -emit-llvm -triple x86_64-windows-msvc -o - %s | FileCheck %s --check-prefixes=WIN,WINOCL
 
 // CHECKNOOCL-LABEL: define {{.*}}void @_Z2f0Pc
 // WINNOOCL-LABEL: define {{.*}}void @"?f0@@YAXPEAD@Z"
Index: test/CodeGenOpenCL/builtins.cl
===================================================================
--- test/CodeGenOpenCL/builtins.cl
+++ test/CodeGenOpenCL/builtins.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -finclude-default-header -cl-std=c++ -fblocks -O0 -emit-llvm -o - -triple "spir-unknown-unknown" | FileCheck %s
+// RUN: %clang_cc1 %s -finclude-default-header -cl-std=clc++ -fblocks -O0 -emit-llvm -o - -triple "spir-unknown-unknown" | FileCheck %s
 
 void testBranchingOnEnqueueKernel(queue_t default_queue, unsigned flags, ndrange_t ndrange) {
     // Ensure `enqueue_kernel` can be branched upon.
Index: test/CodeGenOpenCL/images.cl
===================================================================
--- test/CodeGenOpenCL/images.cl
+++ test/CodeGenOpenCL/images.cl
@@ -1,5 +1,5 @@
 // RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -emit-llvm -o - | FileCheck %s
-// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -emit-llvm -o - -cl-std=c++ | FileCheck %s
+// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -emit-llvm -o - -cl-std=clc++ | FileCheck %s
 
 __attribute__((overloadable)) void read_image(read_only image1d_t img_ro);
 __attribute__((overloadable)) void read_image(write_only image1d_t img_wo);
Index: test/CodeGenOpenCL/logical-ops.cl
===================================================================
--- test/CodeGenOpenCL/logical-ops.cl
+++ test/CodeGenOpenCL/logical-ops.cl
@@ -1,5 +1,5 @@
 // RUN: %clang_cc1 %s -emit-llvm -o - -cl-std=CL1.2 -O1 -triple x86_64-unknown-linux-gnu | FileCheck %s
-// RUN: %clang_cc1 %s -emit-llvm -o - -cl-std=c++ -O1 -triple x86_64-unknown-linux-gnu | FileCheck %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -cl-std=clc++ -O1 -triple x86_64-unknown-linux-gnu | FileCheck %s
 
 #pragma OPENCL EXTENSION cl_khr_fp64 : enable
 
Index: test/CodeGenOpenCL/pipe_builtin.cl
===================================================================
--- test/CodeGenOpenCL/pipe_builtin.cl
+++ test/CodeGenOpenCL/pipe_builtin.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -cl-ext=+cl_khr_subgroups -O0 -cl-std=c++ -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -cl-ext=+cl_khr_subgroups -O0 -cl-std=clc++ -o - %s | FileCheck %s
 // FIXME: Add MS ABI manglings of OpenCL things and remove %itanium_abi_triple
 // above to support OpenCL in the MS C++ ABI.
 
Index: test/CodeGenOpenCL/sampler.cl
===================================================================
--- test/CodeGenOpenCL/sampler.cl
+++ test/CodeGenOpenCL/sampler.cl
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
 // RUN: %clang_cc1 %s -cl-std=CL2.0 -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
-// RUN: %clang_cc1 %s -cl-std=c++ -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
+// RUN: %clang_cc1 %s -cl-std=clc++ -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
 //
 // This test covers 5 cases of sampler initialzation:
 //   1. function argument passing
Index: test/CodeGenOpenCL/spir_version.cl
===================================================================
--- test/CodeGenOpenCL/spir_version.cl
+++ test/CodeGenOpenCL/spir_version.cl
@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 %s -triple "spir64-unknown-unknown" -emit-llvm -o - -cl-std=CL2.0 | FileCheck %s --check-prefix=CHECK-SPIR-CL20
 
 
-// RUN: %clang_cc1 %s -triple "spir64-unknown-unknown" -emit-llvm -o - -cl-std=c++ | FileCheck %s --check-prefix=CHECK-SPIR-CL20
+// RUN: %clang_cc1 %s -triple "spir64-unknown-unknown" -emit-llvm -o - -cl-std=clc++ | FileCheck %s --check-prefix=CHECK-SPIR-CL20
 
 // RUN: %clang_cc1 %s -triple "amdgcn--amdhsa" -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-AMDGCN-CL10
 // RUN: %clang_cc1 %s -triple "amdgcn--amdhsa" -emit-llvm -o - -cl-std=CL1.2 | FileCheck %s --check-prefix=CHECK-AMDGCN-CL12
Index: test/CodeGenOpenCL/to_addr_builtin.cl
===================================================================
--- test/CodeGenOpenCL/to_addr_builtin.cl
+++ test/CodeGenOpenCL/to_addr_builtin.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple spir-unknown-unknown -emit-llvm -O0 -cl-std=c++ -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple spir-unknown-unknown -emit-llvm -O0 -cl-std=clc++ -o - %s | FileCheck %s
 
 // CHECK: %[[A:.*]] = type { float, float, float }
 typedef struct {
Index: test/CodeGenOpenCLCXX/address-space-castoperators.cpp
===================================================================
--- test/CodeGenOpenCLCXX/address-space-castoperators.cpp
+++ test/CodeGenOpenCLCXX/address-space-castoperators.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 void test_reinterpret_cast(){
 __private float x;
Index: test/CodeGenOpenCLCXX/address-space-deduction.cl
===================================================================
--- test/CodeGenOpenCLCXX/address-space-deduction.cl
+++ test/CodeGenOpenCLCXX/address-space-deduction.cl
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -O0 -emit-llvm -o - | FileCheck %s -check-prefixes=COMMON,PTR
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -O0 -emit-llvm -o - -DREF | FileCheck %s -check-prefixes=COMMON,REF
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -O0 -emit-llvm -o - | FileCheck %s -check-prefixes=COMMON,PTR
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -O0 -emit-llvm -o - -DREF | FileCheck %s -check-prefixes=COMMON,REF
 
 #ifdef REF
 #define PTR &
Index: test/CodeGenOpenCLCXX/address-space-deduction2.cl
===================================================================
--- test/CodeGenOpenCLCXX/address-space-deduction2.cl
+++ test/CodeGenOpenCLCXX/address-space-deduction2.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -O0 -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -O0 -emit-llvm -o - | FileCheck %s
 
 class P {
 public:
Index: test/CodeGenOpenCLCXX/addrspace-conversion.cl
===================================================================
--- test/CodeGenOpenCLCXX/addrspace-conversion.cl
+++ test/CodeGenOpenCLCXX/addrspace-conversion.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 void bar(__generic volatile unsigned int* ptr)
 {
Index: test/CodeGenOpenCLCXX/addrspace-derived-base.cl
===================================================================
--- test/CodeGenOpenCLCXX/addrspace-derived-base.cl
+++ test/CodeGenOpenCLCXX/addrspace-derived-base.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 struct B {
   int mb;
Index: test/CodeGenOpenCLCXX/addrspace-of-this.cl
===================================================================
--- test/CodeGenOpenCLCXX/addrspace-of-this.cl
+++ test/CodeGenOpenCLCXX/addrspace-of-this.cl
@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -pedantic -verify -O0 -o - -DDECL | FileCheck %s --check-prefixes="COMMON,EXPL"
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -pedantic -verify -O0 -o - -DDECL -DUSE_DEFLT | FileCheck %s --check-prefixes="COMMON,IMPL"
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -pedantic -verify -O0 -o - | FileCheck %s --check-prefixes="COMMON,IMPL"
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -pedantic -verify -O0 -o - -DDECL | FileCheck %s --check-prefixes="COMMON,EXPL"
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -pedantic -verify -O0 -o - -DDECL -DUSE_DEFLT | FileCheck %s --check-prefixes="COMMON,IMPL"
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -pedantic -verify -O0 -o - | FileCheck %s --check-prefixes="COMMON,IMPL"
 // expected-no-diagnostics
 
 // Test that the 'this' pointer is in the __generic address space.
Index: test/CodeGenOpenCLCXX/addrspace-operators.cl
===================================================================
--- test/CodeGenOpenCLCXX/addrspace-operators.cl
+++ test/CodeGenOpenCLCXX/addrspace-operators.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -triple spir -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+//RUN: %clang_cc1 %s -triple spir -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 enum E {
   a,
Index: test/CodeGenOpenCLCXX/addrspace-references.cl
===================================================================
--- test/CodeGenOpenCLCXX/addrspace-references.cl
+++ test/CodeGenOpenCLCXX/addrspace-references.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -cl-std=c++ -triple spir -emit-llvm -o - | FileCheck %s
+//RUN: %clang_cc1 %s -cl-std=clc++ -triple spir -emit-llvm -o - | FileCheck %s
 
 int bar(const unsigned int &i);
 // CHECK-LABEL: define spir_func void @_Z3foov() 
Index: test/CodeGenOpenCLCXX/addrspace-with-class.cl
===================================================================
--- test/CodeGenOpenCLCXX/addrspace-with-class.cl
+++ test/CodeGenOpenCLCXX/addrspace-with-class.cl
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s --check-prefix=CHECK-DEFINITIONS
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s --check-prefix=CHECK-DEFINITIONS
 
 // This test ensures the proper address spaces and address space cast are used
 // for constructors, member functions and destructors.
Index: test/CodeGenOpenCLCXX/atexit.cl
===================================================================
--- test/CodeGenOpenCLCXX/atexit.cl
+++ test/CodeGenOpenCLCXX/atexit.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -triple spir -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+//RUN: %clang_cc1 %s -triple spir -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 struct S {
   ~S(){};
Index: test/CodeGenOpenCLCXX/global_init.cl
===================================================================
--- test/CodeGenOpenCLCXX/global_init.cl
+++ test/CodeGenOpenCLCXX/global_init.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 struct S {
   S() {}
Index: test/CodeGenOpenCLCXX/local_addrspace_init.cl
===================================================================
--- test/CodeGenOpenCLCXX/local_addrspace_init.cl
+++ test/CodeGenOpenCLCXX/local_addrspace_init.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple spir -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 // Test that we don't initialize local address space objects.
 //CHECK: @_ZZ4testE1i = internal addrspace(3) global i32 undef
Index: test/CodeGenOpenCLCXX/method-overload-address-space.cl
===================================================================
--- test/CodeGenOpenCLCXX/method-overload-address-space.cl
+++ test/CodeGenOpenCLCXX/method-overload-address-space.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -emit-llvm -O0 -o - | FileCheck %s
+//RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -emit-llvm -O0 -o - | FileCheck %s
 
 struct C {
   void foo() __local;
Index: test/CodeGenOpenCLCXX/template-address-spaces.cl
===================================================================
--- test/CodeGenOpenCLCXX/template-address-spaces.cl
+++ test/CodeGenOpenCLCXX/template-address-spaces.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -cl-std=c++ %s -emit-llvm -o - -O0 -triple spir-unknown-unknown | FileCheck %s
+// RUN: %clang_cc1 -cl-std=clc++ %s -emit-llvm -o - -O0 -triple spir-unknown-unknown | FileCheck %s
 
 template <typename T>
 struct S{
Index: test/Driver/autocomplete.c
===================================================================
--- test/Driver/autocomplete.c
+++ test/Driver/autocomplete.c
@@ -34,8 +34,8 @@
 // RUN: %clang --autocomplete=-cl-std=,CL2 | FileCheck %s -check-prefix=CLSTD
 // CLSTD: CL2.0
 // RUN: %clang --autocomplete=-cl-std= | FileCheck %s -check-prefix=CLSTDALL
-// CLSTDALL: c++
-// CLSTDALL-NEXT: cl
+
+// CLSTDALL: cl
 // CLSTDALL-NEXT: CL
 // CLSTDALL-NEXT: cl1.1
 // CLSTDALL-NEXT: CL1.1
@@ -43,6 +43,8 @@
 // CLSTDALL-NEXT: CL1.2
 // CLSTDALL-NEXT: cl2.0
 // CLSTDALL-NEXT: CL2.0
+// CLSTDALL-NEXT: clc++
+// CLSTDALL-NEXT: CLC++
 // RUN: %clang --autocomplete=-fno-sanitize-coverage=,f | FileCheck %s -check-prefix=FNOSANICOVER
 // FNOSANICOVER: func
 // RUN: %clang --autocomplete=-fno-sanitize-coverage= | FileCheck %s -check-prefix=FNOSANICOVERALL
Index: test/Driver/opencl.cl
===================================================================
--- test/Driver/opencl.cl
+++ test/Driver/opencl.cl
@@ -2,7 +2,7 @@
 // RUN: %clang -S -### -cl-std=CL1.1 %s 2>&1 | FileCheck --check-prefix=CHECK-CL11 %s
 // RUN: %clang -S -### -cl-std=CL1.2 %s 2>&1 | FileCheck --check-prefix=CHECK-CL12 %s
 // RUN: %clang -S -### -cl-std=CL2.0 %s 2>&1 | FileCheck --check-prefix=CHECK-CL20 %s
-// RUN: %clang -S -### -cl-std=c++ %s 2>&1 | FileCheck --check-prefix=CHECK-CLCPP %s
+// RUN: %clang -S -### -cl-std=clc++ %s 2>&1 | FileCheck --check-prefix=CHECK-CLCPP %s
 // RUN: %clang -S -### -cl-opt-disable %s 2>&1 | FileCheck --check-prefix=CHECK-OPT-DISABLE %s
 // RUN: %clang -S -### -cl-strict-aliasing %s 2>&1 | FileCheck --check-prefix=CHECK-STRICT-ALIASING %s
 // RUN: %clang -S -### -cl-single-precision-constant %s 2>&1 | FileCheck --check-prefix=CHECK-SINGLE-PRECISION-CONST %s
@@ -22,7 +22,7 @@
 // CHECK-CL11: "-cc1" {{.*}} "-cl-std=CL1.1"
 // CHECK-CL12: "-cc1" {{.*}} "-cl-std=CL1.2"
 // CHECK-CL20: "-cc1" {{.*}} "-cl-std=CL2.0"
-// CHECK-CLCPP: "-cc1" {{.*}} "-cl-std=c++"
+// CHECK-CLCPP: "-cc1" {{.*}} "-cl-std=clc++"
 // CHECK-OPT-DISABLE: "-cc1" {{.*}} "-cl-opt-disable"
 // CHECK-STRICT-ALIASING: "-cc1" {{.*}} "-cl-strict-aliasing"
 // CHECK-SINGLE-PRECISION-CONST: "-cc1" {{.*}} "-cl-single-precision-constant"
Index: test/Frontend/opencl.cl
===================================================================
--- test/Frontend/opencl.cl
+++ test/Frontend/opencl.cl
@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=CL1.1 -DSYNTAX
 // RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=CL1.2 -DSYNTAX
 // RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=CL2.0 -DSYNTAX
-// RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=c++ -DSYNTAX
+// RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=clc++ -DSYNTAX
 // RUN: %clang_cc1 %s -verify -fsyntax-only -fblocks -DBLOCKS -DSYNTAX
 // RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=CL1.1 -fblocks -DBLOCKS -DSYNTAX
 // RUN: %clang_cc1 %s -verify -fsyntax-only -cl-std=CL1.2 -fblocks -DBLOCKS -DSYNTAX
Index: test/Frontend/stdlang.c
===================================================================
--- test/Frontend/stdlang.c
+++ test/Frontend/stdlang.c
@@ -4,11 +4,12 @@
 // RUN: %clang_cc1 -x cl -cl-std=cl1.1 -DOPENCL %s
 // RUN: %clang_cc1 -x cl -cl-std=cl1.2 -DOPENCL %s
 // RUN: %clang_cc1 -x cl -cl-std=cl2.0 -DOPENCL %s
-// RUN: %clang_cc1 -x cl -cl-std=c++ -DOPENCL %s
+// RUN: %clang_cc1 -x cl -cl-std=clc++ -DOPENCL %s
 // RUN: %clang_cc1 -x cl -cl-std=CL -DOPENCL %s
 // RUN: %clang_cc1 -x cl -cl-std=CL1.1 -DOPENCL %s
 // RUN: %clang_cc1 -x cl -cl-std=CL1.2 -DOPENCL %s
 // RUN: %clang_cc1 -x cl -cl-std=CL2.0 -DOPENCL %s
+// RUN: %clang_cc1 -x cl -cl-std=CLC++ -DOPENCL %s
 // RUN: not %clang_cc1 -x cl -std=c99 -DOPENCL %s 2>&1 | FileCheck --check-prefix=CHECK-C99 %s
 // RUN: not %clang_cc1 -x cl -cl-std=invalid -DOPENCL %s 2>&1 | FileCheck --check-prefix=CHECK-INVALID %s
 // CHECK-C99: error: invalid argument '-std=c99' not allowed with 'OpenCL'
Index: test/Headers/opencl-c-header.cl
===================================================================
--- test/Headers/opencl-c-header.cl
+++ test/Headers/opencl-c-header.cl
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -O0 -triple spir-unknown-unknown -internal-isystem ../../lib/Headers -include opencl-c.h -emit-llvm -o - %s -verify | FileCheck %s
 // RUN: %clang_cc1 -O0 -triple spir-unknown-unknown -internal-isystem ../../lib/Headers -include opencl-c.h -emit-llvm -o - %s -verify -cl-std=CL1.1 | FileCheck %s
 // RUN: %clang_cc1 -O0 -triple spir-unknown-unknown -internal-isystem ../../lib/Headers -include opencl-c.h -emit-llvm -o - %s -verify -cl-std=CL1.2 | FileCheck %s
-// RUN: %clang_cc1 -O0 -triple spir-unknown-unknown -internal-isystem ../../lib/Headers -include opencl-c.h -emit-llvm -o - %s -verify -cl-std=c++ | FileCheck %s --check-prefix=CHECK20
+// RUN: %clang_cc1 -O0 -triple spir-unknown-unknown -internal-isystem ../../lib/Headers -include opencl-c.h -emit-llvm -o - %s -verify -cl-std=clc++ | FileCheck %s --check-prefix=CHECK20
 
 // Test including the default header as a module.
 // The module should be compiled only once and loaded from cache afterwards.
Index: test/Parser/opencl-cxx-keywords.cl
===================================================================
--- test/Parser/opencl-cxx-keywords.cl
+++ test/Parser/opencl-cxx-keywords.cl
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -verify -fsyntax-only
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -verify -fsyntax-only -fexceptions -fcxx-exceptions
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -verify -fsyntax-only -fexceptions -fcxx-exceptions
 
 // This test checks that various C++ and OpenCL C keywords are not available
 // in OpenCL.
Index: test/Parser/opencl-cxx-virtual.cl
===================================================================
--- test/Parser/opencl-cxx-virtual.cl
+++ test/Parser/opencl-cxx-virtual.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -fsyntax-only -verify
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -fsyntax-only -verify
 
 // Test that virtual functions and abstract classes are rejected.
 class virtual_functions {
Index: test/Preprocessor/predefined-macros.c
===================================================================
--- test/Preprocessor/predefined-macros.c
+++ test/Preprocessor/predefined-macros.c
@@ -131,7 +131,7 @@
 // RUN:   | FileCheck -match-full-lines %s --check-prefix=CHECK-CL20
 // RUN: %clang_cc1 %s -E -dM -o - -x cl -cl-fast-relaxed-math \
 // RUN:   | FileCheck -match-full-lines %s --check-prefix=CHECK-FRM
-// RUN: %clang_cc1 %s -E -dM -o - -x cl -cl-std=c++ \
+// RUN: %clang_cc1 %s -E -dM -o - -x cl -cl-std=clc++ \
 // RUN:   | FileCheck -match-full-lines %s --check-prefix=CHECK-CLCPP10
 // CHECK-CL10: #define CL_VERSION_1_0 100
 // CHECK-CL10: #define CL_VERSION_1_1 110
Index: test/SemaOpenCL/address-spaces-conversions-cl2.0.cl
===================================================================
--- test/SemaOpenCL/address-spaces-conversions-cl2.0.cl
+++ test/SemaOpenCL/address-spaces-conversions-cl2.0.cl
@@ -1,9 +1,9 @@
 // RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DCONSTANT -cl-std=CL2.0
 // RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DGLOBAL -cl-std=CL2.0
 // RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DGENERIC -cl-std=CL2.0
-// RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DCONSTANT -cl-std=c++
-// RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DGLOBAL -cl-std=c++
-// RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DGENERIC -cl-std=c++
+// RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DCONSTANT -cl-std=clc++
+// RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DGLOBAL -cl-std=clc++
+// RUN: %clang_cc1 %s -ffake-address-space-map -verify -pedantic -fsyntax-only -DGENERIC -cl-std=clc++
 
 /* OpenCLC v2.0 adds a set of restrictions for conversions between pointers to
 *  different address spaces, mainly described in Sections 6.5.5 and 6.5.6.
Index: test/SemaOpenCL/address-spaces.cl
===================================================================
--- test/SemaOpenCL/address-spaces.cl
+++ test/SemaOpenCL/address-spaces.cl
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only
 // RUN: %clang_cc1 %s -cl-std=CL2.0 -verify -pedantic -fsyntax-only
-// RUN: %clang_cc1 %s -cl-std=c++ -verify -pedantic -fsyntax-only
+// RUN: %clang_cc1 %s -cl-std=clc++ -verify -pedantic -fsyntax-only
 
 __constant int ci = 1;
 
Index: test/SemaOpenCL/builtin.cl
===================================================================
--- test/SemaOpenCL/builtin.cl
+++ test/SemaOpenCL/builtin.cl
@@ -1,5 +1,5 @@
 // RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL1.2
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=c++
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++
 
 // expected-no-diagnostics
 
Index: test/SemaOpenCL/clk_event_t.cl
===================================================================
--- test/SemaOpenCL/clk_event_t.cl
+++ test/SemaOpenCL/clk_event_t.cl
@@ -1,5 +1,5 @@
 // RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL2.0
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=c++
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++
 
 // Taken from opencl-c.h
 #define CLK_NULL_EVENT (__builtin_astype(((__SIZE_MAX__)), clk_event_t))
Index: test/SemaOpenCL/extension-version.cl
===================================================================
--- test/SemaOpenCL/extension-version.cl
+++ test/SemaOpenCL/extension-version.cl
@@ -2,12 +2,12 @@
 // RUN: %clang_cc1 -x cl -cl-std=CL1.1 %s -verify -triple spir-unknown-unknown
 // RUN: %clang_cc1 -x cl -cl-std=CL1.2 %s -verify -triple spir-unknown-unknown
 // RUN: %clang_cc1 -x cl -cl-std=CL2.0 %s -verify -triple spir-unknown-unknown
-// RUN: %clang_cc1 -x cl -cl-std=c++ %s -verify -triple spir-unknown-unknown
+// RUN: %clang_cc1 -x cl -cl-std=clc++ %s -verify -triple spir-unknown-unknown
 // RUN: %clang_cc1 -x cl -cl-std=CL %s -verify -triple spir-unknown-unknown -Wpedantic-core-features -DTEST_CORE_FEATURES
 // RUN: %clang_cc1 -x cl -cl-std=CL1.1 %s -verify -triple spir-unknown-unknown -Wpedantic-core-features -DTEST_CORE_FEATURES
 // RUN: %clang_cc1 -x cl -cl-std=CL1.2 %s -verify -triple spir-unknown-unknown -Wpedantic-core-features -DTEST_CORE_FEATURES
 // RUN: %clang_cc1 -x cl -cl-std=CL2.0 %s -verify -triple spir-unknown-unknown -Wpedantic-core-features -DTEST_CORE_FEATURES
-// RUN: %clang_cc1 -x cl -cl-std=c++ %s -verify -triple spir-unknown-unknown -Wpedantic-core-features -DTEST_CORE_FEATURES
+// RUN: %clang_cc1 -x cl -cl-std=clc++ %s -verify -triple spir-unknown-unknown -Wpedantic-core-features -DTEST_CORE_FEATURES
 
 #if (defined(__OPENCL_CPP_VERSION__) || __OPENCL_C_VERSION__ >= 200) && !defined(TEST_CORE_FEATURES)
 // expected-no-diagnostics
Index: test/SemaOpenCL/extensions.cl
===================================================================
--- test/SemaOpenCL/extensions.cl
+++ test/SemaOpenCL/extensions.cl
@@ -28,7 +28,7 @@
 // enabled by default with -cl-std=CL2.0).
 //
 // RUN: %clang_cc1 %s -triple amdgcn-unknown-unknown -verify -pedantic -fsyntax-only -cl-std=CL2.0 -finclude-default-header
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -pedantic -fsyntax-only -cl-std=c++
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -verify -pedantic -fsyntax-only -cl-std=clc++
 
 #ifdef _OPENCL_H_
 // expected-no-diagnostics
Index: test/SemaOpenCL/invalid-image.cl
===================================================================
--- test/SemaOpenCL/invalid-image.cl
+++ test/SemaOpenCL/invalid-image.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify -cl-std=c++ %s
+// RUN: %clang_cc1 -verify -cl-std=clc++ %s
 // RUN: %clang_cc1 -verify %s
 // RUN: %clang_cc1 -verify -D=ATTR_TEST -fms-compatibility %s
 
Index: test/SemaOpenCL/invalid-pipes-cl2.0.cl
===================================================================
--- test/SemaOpenCL/invalid-pipes-cl2.0.cl
+++ test/SemaOpenCL/invalid-pipes-cl2.0.cl
@@ -1,5 +1,5 @@
 // RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL2.0
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=c++
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++
 
 global pipe int gp;            // expected-error {{type '__global read_only pipe int' can only be used as a function parameter in OpenCL}}
 global reserve_id_t rid;          // expected-error {{the '__global reserve_id_t' type cannot be used to declare a program scope variable}}
Index: test/SemaOpenCLCXX/address-space-deduction.cl
===================================================================
--- test/SemaOpenCLCXX/address-space-deduction.cl
+++ test/SemaOpenCLCXX/address-space-deduction.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -cl-std=c++ -pedantic -ast-dump -verify | FileCheck %s
+//RUN: %clang_cc1 %s -cl-std=clc++ -pedantic -ast-dump -verify | FileCheck %s
 
 //expected-no-diagnostics
 
Index: test/SemaOpenCLCXX/address-space-of-this-class-scope.cl
===================================================================
--- test/SemaOpenCLCXX/address-space-of-this-class-scope.cl
+++ test/SemaOpenCLCXX/address-space-of-this-class-scope.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify
+//RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify
 
 struct C {
   auto fGlob() __global -> decltype(this);
Index: test/SemaOpenCLCXX/address-space-of-this.cl
===================================================================
--- test/SemaOpenCLCXX/address-space-of-this.cl
+++ test/SemaOpenCLCXX/address-space-of-this.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify -fsyntax-only
 // expected-no-diagnostics
 
 // Extract from PR38614
Index: test/SemaOpenCLCXX/address-space-references.cl
===================================================================
--- test/SemaOpenCLCXX/address-space-references.cl
+++ test/SemaOpenCLCXX/address-space-references.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify -fsyntax-only
 
 __global const int& f(__global float &ref) {
   return ref; // expected-error{{reference of type 'const __global int &' cannot bind to a temporary object because of address space mismatch}}
Index: test/SemaOpenCLCXX/address-space-templates.cl
===================================================================
--- test/SemaOpenCLCXX/address-space-templates.cl
+++ test/SemaOpenCLCXX/address-space-templates.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -cl-std=c++ -pedantic -verify -fsyntax-only
+//RUN: %clang_cc1 %s -cl-std=clc++ -pedantic -verify -fsyntax-only
 
 template <typename T>
 struct S {
Index: test/SemaOpenCLCXX/address_space_overloading.cl
===================================================================
--- test/SemaOpenCLCXX/address_space_overloading.cl
+++ test/SemaOpenCLCXX/address_space_overloading.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=c++
+// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++
 // expected-no-diagnostics
 
 struct RetGlob {
Index: test/SemaOpenCLCXX/kernel_invalid.cl
===================================================================
--- test/SemaOpenCLCXX/kernel_invalid.cl
+++ test/SemaOpenCLCXX/kernel_invalid.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -cl-std=c++ -pedantic -verify -fsyntax-only
+// RUN: %clang_cc1 %s -cl-std=clc++ -pedantic -verify -fsyntax-only
 
 struct C {
   kernel void m(); //expected-error{{kernel functions cannot be class members}}
Index: test/SemaOpenCLCXX/method-overload-address-space.cl
===================================================================
--- test/SemaOpenCLCXX/method-overload-address-space.cl
+++ test/SemaOpenCLCXX/method-overload-address-space.cl
@@ -1,4 +1,4 @@
-//RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify
+//RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify
 
 struct C {
   void m1() __local __local; //expected-warning{{multiple identical address spaces specified for type}}
Index: test/SemaOpenCLCXX/newdelete.cl
===================================================================
--- test/SemaOpenCLCXX/newdelete.cl
+++ test/SemaOpenCLCXX/newdelete.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify -fsyntax-only
 
 class A {
   public:
Index: test/SemaOpenCLCXX/restricted.cl
===================================================================
--- test/SemaOpenCLCXX/restricted.cl
+++ test/SemaOpenCLCXX/restricted.cl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=c++ -pedantic -verify -fsyntax-only
+// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify -fsyntax-only
 
 // This test checks that various C/C++/OpenCL C constructs are not available in
 // C++ for OpenCL.