; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 16
; Schema: 0
               OpCapability Shader
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %fragment_main "fragment_main"
               OpExecutionMode %fragment_main OriginUpperLeft
               OpName %fwidth_5d1b39 "fwidth_5d1b39"
               OpName %arg_0 "arg_0"
               OpName %res "res"
               OpName %fragment_main "fragment_main"
       %void = OpTypeVoid
          %1 = OpTypeFunction %void
      %float = OpTypeFloat 32
    %v3float = OpTypeVector %float 3
          %7 = OpConstantNull %v3float
%_ptr_Function_v3float = OpTypePointer Function %v3float
%fwidth_5d1b39 = OpFunction %void None %1
          %4 = OpLabel
      %arg_0 = OpVariable %_ptr_Function_v3float Function %7
        %res = OpVariable %_ptr_Function_v3float Function %7
               OpStore %arg_0 %7
         %11 = OpLoad %v3float %arg_0
         %10 = OpFwidth %v3float %11
               OpStore %res %10
               OpReturn
               OpFunctionEnd
%fragment_main = OpFunction %void None %1
         %14 = OpLabel
         %15 = OpFunctionCall %void %fwidth_5d1b39
               OpReturn
               OpFunctionEnd