OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %_entrypoint_v "_entrypoint" %sk_FragColor
               OpExecutionMode %_entrypoint_v OriginUpperLeft
               OpName %sk_FragColor "sk_FragColor"
               OpName %_UniformBuffer "_UniformBuffer"
               OpMemberName %_UniformBuffer 0 "testMatrix2x2"
               OpMemberName %_UniformBuffer 1 "colorGreen"
               OpMemberName %_UniformBuffer 2 "colorRed"
               OpName %_entrypoint_v "_entrypoint_v"
               OpName %main "main"
               OpDecorate %sk_FragColor RelaxedPrecision
               OpDecorate %sk_FragColor Location 0
               OpDecorate %sk_FragColor Index 0
               OpMemberDecorate %_UniformBuffer 0 Offset 0
               OpMemberDecorate %_UniformBuffer 0 ColMajor
               OpMemberDecorate %_UniformBuffer 0 MatrixStride 16
               OpMemberDecorate %_UniformBuffer 1 Offset 32
               OpMemberDecorate %_UniformBuffer 1 RelaxedPrecision
               OpMemberDecorate %_UniformBuffer 2 Offset 48
               OpMemberDecorate %_UniformBuffer 2 RelaxedPrecision
               OpDecorate %_UniformBuffer Block
               OpDecorate %7 Binding 0
               OpDecorate %7 DescriptorSet 0
               OpDecorate %41 RelaxedPrecision
               OpDecorate %44 RelaxedPrecision
               OpDecorate %45 RelaxedPrecision
      %float = OpTypeFloat 32
    %v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%sk_FragColor = OpVariable %_ptr_Output_v4float Output
    %v2float = OpTypeVector %float 2
%mat2v2float = OpTypeMatrix %v2float 2
%_UniformBuffer = OpTypeStruct %mat2v2float %v4float %v4float
%_ptr_Uniform__UniformBuffer = OpTypePointer Uniform %_UniformBuffer
          %7 = OpVariable %_ptr_Uniform__UniformBuffer Uniform
       %void = OpTypeVoid
         %14 = OpTypeFunction %void
    %float_0 = OpConstant %float 0
         %17 = OpConstantComposite %v2float %float_0 %float_0
%_ptr_Function_v2float = OpTypePointer Function %v2float
         %21 = OpTypeFunction %v4float %_ptr_Function_v2float
%_ptr_Uniform_mat2v2float = OpTypePointer Uniform %mat2v2float
        %int = OpTypeInt 32 1
      %int_0 = OpConstant %int 0
   %float_n2 = OpConstant %float -2
       %bool = OpTypeBool
%_ptr_Function_v4float = OpTypePointer Function %v4float
%_ptr_Uniform_v4float = OpTypePointer Uniform %v4float
      %int_1 = OpConstant %int 1
      %int_2 = OpConstant %int 2
%_entrypoint_v = OpFunction %void None %14
         %15 = OpLabel
         %18 = OpVariable %_ptr_Function_v2float Function
               OpStore %18 %17
         %20 = OpFunctionCall %v4float %main %18
               OpStore %sk_FragColor %20
               OpReturn
               OpFunctionEnd
       %main = OpFunction %v4float None %21
         %22 = OpFunctionParameter %_ptr_Function_v2float
         %23 = OpLabel
         %33 = OpVariable %_ptr_Function_v4float Function
         %25 = OpAccessChain %_ptr_Uniform_mat2v2float %7 %int_0
         %29 = OpLoad %mat2v2float %25
         %24 = OpExtInst %float %1 Determinant %29
         %31 = OpFOrdEqual %bool %24 %float_n2
               OpSelectionMerge %37 None
               OpBranchConditional %31 %35 %36
         %35 = OpLabel
         %38 = OpAccessChain %_ptr_Uniform_v4float %7 %int_1
         %41 = OpLoad %v4float %38
               OpStore %33 %41
               OpBranch %37
         %36 = OpLabel
         %42 = OpAccessChain %_ptr_Uniform_v4float %7 %int_2
         %44 = OpLoad %v4float %42
               OpStore %33 %44
               OpBranch %37
         %37 = OpLabel
         %45 = OpLoad %v4float %33
               OpReturnValue %45
               OpFunctionEnd