               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %2 "main" %gl_GlobalInvocationID
               OpExecutionMode %2 LocalSize 1 1 1
               OpDecorate %gl_GlobalInvocationID BuiltIn GlobalInvocationId
               OpDecorate %_runtimearr_uint ArrayStride 4
               OpDecorate %_struct_5 BufferBlock
               OpMemberDecorate %_struct_5 0 Offset 0
               OpDecorate %6 DescriptorSet 0
               OpDecorate %6 Binding 0
               OpDecorate %7 DescriptorSet 0
               OpDecorate %7 Binding 1
       %uint = OpTypeInt 32 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%_ptr_Input_uint = OpTypePointer Input %uint
     %v3uint = OpTypeVector %uint 3
%_ptr_Input_v3uint = OpTypePointer Input %v3uint
       %void = OpTypeVoid
         %14 = OpTypeFunction %void
     %uint_0 = OpConstant %uint 0
     %uint_1 = OpConstant %uint 1
%_runtimearr_uint = OpTypeRuntimeArray %uint
     %v2uint = OpTypeVector %uint 2
  %_struct_5 = OpTypeStruct %_runtimearr_uint
%_ptr_Uniform__struct_5 = OpTypePointer Uniform %_struct_5
%gl_GlobalInvocationID = OpVariable %_ptr_Input_v3uint Input
          %6 = OpVariable %_ptr_Uniform__struct_5 Uniform
          %7 = OpVariable %_ptr_Uniform__struct_5 Uniform
          %2 = OpFunction %void None %14
         %19 = OpLabel
         %20 = OpAccessChain %_ptr_Input_uint %gl_GlobalInvocationID %uint_0
         %21 = OpLoad %uint %20
         %22 = OpAccessChain %_ptr_Uniform_uint %6 %uint_0 %21
         %23 = OpLoad %uint %22
         %24 = OpExtInst %uint %1 SAbs %23
         %25 = OpAccessChain %_ptr_Uniform_uint %7 %uint_0 %21
               OpStore %25 %24
               OpReturn
               OpFunctionEnd