OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main" %sk_GlobalInvocationID %sk_LocalInvocationID %sk_LocalInvocationIndex %sk_NumWorkgroups %sk_WorkgroupID
               OpExecutionMode %main LocalSize 64 1 1
               OpName %outputs "outputs"
               OpMemberName %outputs 0 "outputBuffer"
               OpName %sk_GlobalInvocationID "sk_GlobalInvocationID"
               OpName %sk_LocalInvocationID "sk_LocalInvocationID"
               OpName %sk_LocalInvocationIndex "sk_LocalInvocationIndex"
               OpName %sk_NumWorkgroups "sk_NumWorkgroups"
               OpName %sk_WorkgroupID "sk_WorkgroupID"
               OpName %helper_I "helper_I"
               OpName %main "main"
               OpDecorate %_runtimearr_uint ArrayStride 16
               OpMemberDecorate %outputs 0 Offset 0
               OpDecorate %outputs BufferBlock
               OpDecorate %4 Binding 0
               OpDecorate %4 DescriptorSet 0
               OpDecorate %sk_GlobalInvocationID BuiltIn GlobalInvocationId
               OpDecorate %sk_LocalInvocationID BuiltIn LocalInvocationId
               OpDecorate %sk_LocalInvocationIndex BuiltIn LocalInvocationIndex
               OpDecorate %sk_NumWorkgroups BuiltIn NumWorkgroups
               OpDecorate %sk_WorkgroupID BuiltIn WorkgroupId
       %uint = OpTypeInt 32 0
%_runtimearr_uint = OpTypeRuntimeArray %uint
    %outputs = OpTypeStruct %_runtimearr_uint
%_ptr_Uniform_outputs = OpTypePointer Uniform %outputs
          %4 = OpVariable %_ptr_Uniform_outputs Uniform
     %v3uint = OpTypeVector %uint 3
%_ptr_Input_v3uint = OpTypePointer Input %v3uint
%sk_GlobalInvocationID = OpVariable %_ptr_Input_v3uint Input
%sk_LocalInvocationID = OpVariable %_ptr_Input_v3uint Input
%_ptr_Input_uint = OpTypePointer Input %uint
%sk_LocalInvocationIndex = OpVariable %_ptr_Input_uint Input
%sk_NumWorkgroups = OpVariable %_ptr_Input_v3uint Input
%sk_WorkgroupID = OpVariable %_ptr_Input_v3uint Input
         %17 = OpTypeFunction %uint
       %void = OpTypeVoid
         %31 = OpTypeFunction %void
        %int = OpTypeInt 32 1
      %int_0 = OpConstant %int 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
   %helper_I = OpFunction %uint None %17
         %18 = OpLabel
         %19 = OpLoad %v3uint %sk_NumWorkgroups
         %20 = OpCompositeExtract %uint %19 0
         %21 = OpLoad %v3uint %sk_WorkgroupID
         %22 = OpCompositeExtract %uint %21 0
         %23 = OpIAdd %uint %20 %22
         %24 = OpLoad %v3uint %sk_LocalInvocationID
         %25 = OpCompositeExtract %uint %24 0
         %26 = OpIAdd %uint %23 %25
         %27 = OpLoad %v3uint %sk_GlobalInvocationID
         %28 = OpCompositeExtract %uint %27 0
         %29 = OpIAdd %uint %26 %28
               OpReturnValue %29
               OpFunctionEnd
       %main = OpFunction %void None %31
         %32 = OpLabel
         %33 = OpFunctionCall %uint %helper_I
         %36 = OpLoad %uint %sk_LocalInvocationIndex
         %37 = OpAccessChain %_ptr_Uniform_uint %4 %int_0 %36
               OpStore %37 %33
               OpReturn
               OpFunctionEnd