OpCapability Addresses
               OpCapability Linkage
               OpCapability Kernel
               OpCapability Int64
               OpMemoryModel Physical64 OpenCL
               OpEntryPoint Kernel %func "branch_simple"
               OpName %inptr "in"
               OpName %outptr "out"
               OpDecorate %global_id BuiltIn GlobalInvocationId
               OpDecorate %global_id Constant
               OpDecorate %inptr FuncParamAttr NoCapture
               OpDecorate %global_id LinkageAttributes "__spirv_GlobalInvocationId" Import
%idx_t       = OpTypeInt 64 0
%idx3_t      = OpTypeVector %idx_t 3
%idx3_ptr_t  = OpTypePointer UniformConstant %idx3_t
%shift_val   = OpConstant %idx_t 32
%void_t      = OpTypeVoid
%int_t       = OpTypeInt 32 0
%int_ptr_t   = OpTypePointer CrossWorkgroup %int_t
%func_t      = OpTypeFunction %void_t %int_ptr_t %int_ptr_t
%global_id   = OpVariable %idx3_ptr_t UniformConstant
%func        = OpFunction %void_t None %func_t
%inptr       = OpFunctionParameter %int_ptr_t
%outptr      = OpFunctionParameter %int_ptr_t
%entry       = OpLabel
%idx3        = OpLoad %idx3_t %global_id Aligned 0
%idx_tmp     = OpCompositeExtract %idx_t %idx3 0
%idx_shift   = OpShiftLeftLogical %idx_t %idx_tmp %shift_val
%idx         = OpShiftRightArithmetic %idx_t %idx_shift %shift_val
%current_in  = OpInBoundsPtrAccessChain %int_ptr_t %inptr %idx
%current_out = OpInBoundsPtrAccessChain %int_ptr_t %outptr %idx
               OpBranch %final_block
%final_block = OpLabel
%val         = OpLoad %int_t %current_in
               OpStore %current_out %val
               OpReturn
               OpFunctionEnd