add SPIR-V 1.6 testing for UniformDecoration decorations (#2254)

Adds a basic test for the SPIR-V 1.6 UniformDecoration decorations.
Specifically:

* Tests both the Uniform and UniformId decorations.
* Tests the decorations on constants, function parameters, and
variables.

test_conformance/spirv_new/test_spirv_16.cpp

@@ -82,3 +82,79 @@ REGISTER_TEST(spirv16_image_operand_nontemporal)
 
     return TEST_PASS;
 }
+
+static int test_uniformdecoration_helper(cl_device_id device,
+                                         cl_context context,
+                                         cl_command_queue queue,
+                                         bool test_uniformid)
+{
+    constexpr size_t global_size = 16;
+    const cl_uint value = 42;
+    const cl_uint check = value + 1;
+
+    const char* filename = test_uniformid ? "spv1.6/uniformdecoration_uniformid"
+                                          : "spv1.6/uniformdecoration_uniform";
+
+    cl_int error = CL_SUCCESS;
+
+    clProgramWrapper prog;
+    error = get_program_with_il(prog, device, context, filename);
+    SPIRV_CHECK_ERROR(error, "Failed to compile spv program");
+
+    clKernelWrapper kernel =
+        clCreateKernel(prog, "test_uniformdecoration", &error);
+    SPIRV_CHECK_ERROR(error, "Failed to create spv kernel");
+
+    std::vector<cl_uint> h_dst(global_size);
+    clMemWrapper dst =
+        clCreateBuffer(context, CL_MEM_READ_WRITE,
+                       h_dst.size() * sizeof(cl_uint), nullptr, &error);
+    SPIRV_CHECK_ERROR(error, "Failed to create dst buffer");
+
+    error |= clSetKernelArg(kernel, 0, sizeof(dst), &dst);
+    error |= clSetKernelArg(kernel, 1, sizeof(value), &value);
+    SPIRV_CHECK_ERROR(error, "Failed to set kernel args");
+
+    error = clEnqueueNDRangeKernel(queue, kernel, 1, nullptr, &global_size,
+                                   nullptr, 0, nullptr, nullptr);
+    SPIRV_CHECK_ERROR(error, "Failed to enqueue kernel");
+
+    error = clEnqueueReadBuffer(queue, dst, CL_TRUE, 0,
+                                h_dst.size() * sizeof(cl_uint), h_dst.data(), 0,
+                                nullptr, nullptr);
+    SPIRV_CHECK_ERROR(error, "Unable to read dst buffer");
+
+    for (size_t i = 0; i < global_size; i++)
+    {
+        if (h_dst[i] != check)
+        {
+            log_error("Result mismatch at index %zu!  Got %u, wanted %u.\n", i,
+                      h_dst[i], check);
+            return TEST_FAIL;
+        }
+    }
+
+    return TEST_PASS;
+}
+
+REGISTER_TEST(spirv16_uniformdecoration_uniform)
+{
+    if (!is_spirv_version_supported(device, "SPIR-V_1.6"))
+    {
+        log_info("SPIR-V 1.6 not supported; skipping tests.\n");
+        return TEST_SKIPPED_ITSELF;
+    }
+
+    return test_uniformdecoration_helper(device, context, queue, false);
+}
+
+REGISTER_TEST(spirv16_uniformdecoration_uniformid)
+{
+    if (!is_spirv_version_supported(device, "SPIR-V_1.6"))
+    {
+        log_info("SPIR-V 1.6 not supported; skipping tests.\n");
+        return TEST_SKIPPED_ITSELF;
+    }
+
+    return test_uniformdecoration_helper(device, context, queue, true);
+}