Use highest OpenCL C version (#1081)

* Set the highest supported OpenCL C version.

* Remove gDeviceLt20 variable - not used anymore.

* Fix formatting issues

test_conformance/pipes/test_pipe_limits.cpp

@@ -1,6 +1,6 @@
 //
 // Copyright (c) 2017 The Khronos Group Inc.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -218,9 +218,8 @@ int test_pipe_max_args(cl_device_id deviceID, cl_context context, cl_command_que
     const char *sources[] = { kernel_source.c_str() };
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(
-        context, &program, &kernel[0], 1, sources, kernelName[0],
-        "-cl-std=CL2.0");
+    err = create_single_kernel_helper(context, &program, &kernel[0], 1, sources,
+                                      kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     //Create consumer kernel
@@ -368,9 +367,8 @@ int test_pipe_max_packet_size(cl_device_id deviceID, cl_context context, cl_comm
     const char *sources[] = { kernel_source.c_str() };
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(
-        context, &program, &kernel[0], 1, sources, kernelName[0],
-        "-cl-std=CL2.0");
+    err = create_single_kernel_helper(context, &program, &kernel[0], 1, sources,
+                                      kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     //Create consumer kernel
@@ -533,9 +531,8 @@ int test_pipe_max_active_reservations(cl_device_id deviceID, cl_context context,
     const char *sources[] = { kernel_source.c_str() };
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(
-        context, &program, &kernel[0], 1, sources, kernelName[0],
-        "-cl-std=CL2.0");
+    err = create_single_kernel_helper(context, &program, &kernel[0], 1, sources,
+                                      kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     // Create consumer kernel

test_conformance/pipes/test_pipe_query_functions.cpp

@@ -1,6 +1,6 @@
 //
 // Copyright (c) 2017 The Khronos Group Inc.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -140,7 +140,9 @@ int test_pipe_query_functions(cl_device_id deviceID, cl_context context, cl_comm
     test_error_ret(err, " clCreatePipe failed", -1);
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(context, &program, &kernel[0], 1, (const char**)&pipe_query_functions_kernel_code, kernelName[0], "-cl-std=CL2.0");
+    err = create_single_kernel_helper(
+        context, &program, &kernel[0], 1,
+        (const char **)&pipe_query_functions_kernel_code, kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     //Create consumer kernel

test_conformance/pipes/test_pipe_read_write.cpp

@@ -1,6 +1,6 @@
 //
 // Copyright (c) 2017 The Khronos Group Inc.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -531,9 +531,8 @@ int test_pipe_readwrite( cl_device_id deviceID, cl_context context, cl_command_q
         std::string kernel_source = sourceCode[i].str();
         const char *sources[] = { kernel_source.c_str() };
         // Create producer kernel
-        err = create_single_kernel_helper_with_build_options(
-            context, &program[i], &kernel[ii], 1, sources, kernelName[ii],
-            "-cl-std=CL2.0");
+        err = create_single_kernel_helper(context, &program[i], &kernel[ii], 1,
+                                          sources, kernelName[ii]);
 
         test_error_ret(err, " Error creating program", -1);
 
@@ -659,7 +658,8 @@ int test_pipe_readwrite_struct_generic( cl_device_id deviceID, cl_context contex
     test_error_ret(err, " clCreatePipe failed", -1);
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(context, &program, &kernel[0], 1, &kernelCode, kernelName[0], "-cl-std=CL2.0");
+    err = create_single_kernel_helper(context, &program, &kernel[0], 1,
+                                      &kernelCode, kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     //Create consumer kernel

test_conformance/pipes/test_pipe_readwrite_errors.cpp

@@ -1,6 +1,6 @@
 //
 // Copyright (c) 2017 The Khronos Group Inc.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -115,7 +115,9 @@ int test_pipe_readwrite_errors(cl_device_id deviceID, cl_context context, cl_com
     test_error_ret(err, " clCreatePipe failed", -1);
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(context, &program, &kernel[0], 1, (const char**)&pipe_readwrite_errors_kernel_code, kernelName[0], "-cl-std=CL2.0");
+    err = create_single_kernel_helper(
+        context, &program, &kernel[0], 1,
+        (const char **)&pipe_readwrite_errors_kernel_code, kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     //Create consumer kernel

test_conformance/pipes/test_pipe_subgroups.cpp

@@ -1,6 +1,6 @@
 //
 // Copyright (c) 2017 The Khronos Group Inc.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -146,7 +146,9 @@ int test_pipe_subgroups_divergence(cl_device_id deviceID, cl_context context, cl
     test_error_ret(err, " clCreatePipe failed", -1);
 
     // Create producer kernel
-    err = create_single_kernel_helper_with_build_options(context, &program, &kernel[0], 1, (const char**)&pipe_subgroups_kernel_code, kernelName[0], "-cl-std=CL2.0");
+    err = create_single_kernel_helper(
+        context, &program, &kernel[0], 1,
+        (const char **)&pipe_subgroups_kernel_code, kernelName[0]);
     test_error_ret(err, " Error creating program", -1);
 
     //Create consumer kernel