update and add a test SPIR-V file

Author: bashbaug

samples/99_globalvar/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (c) 2025 Ben Ashbaugh
+# Copyright (c) 2025-2026 Ben Ashbaugh
 #
 # SPDX-License-Identifier: MIT
 
@@ -7,4 +7,5 @@ add_opencl_sample(
     NUMBER 99
     TARGET globalvar
     VERSION 210
-    SOURCES main.cpp)
+    SOURCES main.cpp
+    KERNELS device_global64.spv)

samples/99_globalvar/device_global64.spv

@@ -0,0 +1,27 @@
+; SPIR-V
+; Version: 1.4
+; Generator: Khronos LLVM/SPIR-V Translator; 14
+; Bound: 21
+; Schema: 0
+               OpCapability Addresses
+               OpCapability Kernel
+               OpCapability Linkage
+               OpCapability GlobalVariableHostAccessINTEL
+               OpExtension "SPV_INTEL_global_variable_host_access"
+               OpMemoryModel Physical64 OpenCL
+               OpEntryPoint Kernel %kernel "Test" %dev_global
+               OpDecorate %dev_global HostAccessINTEL WriteINTEL "HostAccessName"
+               OpDecorate %dev_global LinkageAttributes "ExportName" Export
+       %uint = OpTypeInt 32 0
+  %gptr_uint = OpTypePointer CrossWorkgroup %uint
+       %void = OpTypeVoid
+ %kernel_sig = OpTypeFunction %void %gptr_uint
+     %uint_0 = OpConstantNull %uint
+    %uint_42 = OpConstant %uint 42
+ %dev_global = OpVariable %gptr_uint CrossWorkgroup %uint_0
+     %kernel = OpFunction %void None %kernel_sig
+        %arg = OpFunctionParameter %gptr_uint
+      %entry = OpLabel
+               OpStore %dev_global %uint_42 Aligned 4
+               OpReturn
+               OpFunctionEnd

samples/99_globalvar/device_global64.spvasm

@@ -1,5 +1,5 @@
 /*
-// Copyright (c) 2019-2025 Ben Ashbaugh
+// Copyright (c) 2025-2026 Ben Ashbaugh
 //
 // SPDX-License-Identifier: MIT
 */
@@ -102,7 +102,7 @@ int main(
     int platformIndex = 0;
     int deviceIndex = 0;
 
-    std::string fileName(sizeof(void*) == 8  ? "sample_kernel64.spv" : "sample_kernel32.spv");
+    std::string fileName(sizeof(void*) == 8  ? "device_global64.spv" : "device_global32.spv");
     std::string buildOptions;
 
     {
@@ -216,13 +216,13 @@ int main(
         cl_int errorCode = CL_SUCCESS;
         size_t gvsize = 0; void* gvptr = nullptr;
         errorCode = clGetDeviceGlobalVariablePointerINTEL(
-            device(), program(), "uid67f037ed289236e5____ZL2dg", &gvsize, &gvptr);
-        printf("clGetDeviceGlobalVariablePointerINTEL with uid67f037ed289236e5____ZL2dg returned %d: %zu %p\n", errorCode, gvsize, gvptr);
+            device(), program(), "HostAccessName", &gvsize, &gvptr);
+        printf("clGetDeviceGlobalVariablePointerINTEL with HostAccessName returned %d: %zu %p\n", errorCode, gvsize, gvptr);
 
         gvsize = 0; gvptr = nullptr;
         errorCode = clGetDeviceGlobalVariablePointerINTEL(
-            device(), program(), "_ZL2dg", &gvsize, &gvptr);
-        printf("clGetDeviceGlobalVariablePointerINTEL with _ZL2dg returned %d: %zu %p\n", errorCode, gvsize, gvptr);
+            device(), program(), "ExportName", &gvsize, &gvptr);
+        printf("clGetDeviceGlobalVariablePointerINTEL with ExportName returned %d: %zu %p\n", errorCode, gvsize, gvptr);
 
         cl_unified_shared_memory_type_intel gvtype = 0;
         errorCode = clGetMemAllocInfoINTEL(

samples/99_globalvar/main.cpp

@@ -0,0 +1,2 @@
+spirv-as --target-env spv1.4 device_global64.spvasm -o device_global64.spv
+spirv-val device_global64.spv