[require]
VK_KHR_spirv_1_4
geometryShader

[vertex shader passthrough]
[geometry shader spirv]
; Test a geometry shader with an SSBO on the OpEntryPoint instruction.
; #version 450
;
; layout(triangles) in;
; layout(triangle_strip, max_vertices = 3) out;
;
; layout(std430, binding = 0) buffer input_buffer
; {
;   float factor;
; };
;
; void main()
; {
;   for( int i = 0; i < 3; i++ ) {
;     vec3 point = gl_in[i].gl_Position.xyz;
;     gl_Position = vec4(point * factor, 1.0);
;     EmitVertex();
;   }
;   EndPrimitive();
; }
               OpCapability Geometry
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Geometry %main "main" %gl_in %_ %__0
               OpExecutionMode %main Triangles
               OpExecutionMode %main Invocations 1
               OpExecutionMode %main OutputTriangleStrip
               OpExecutionMode %main OutputVertices 3
               OpSource GLSL 450
               OpName %main "main"
               OpName %i "i"
               OpName %point "point"
               OpName %gl_PerVertex "gl_PerVertex"
               OpMemberName %gl_PerVertex 0 "gl_Position"
               OpMemberName %gl_PerVertex 1 "gl_PointSize"
               OpMemberName %gl_PerVertex 2 "gl_ClipDistance"
               OpMemberName %gl_PerVertex 3 "gl_CullDistance"
               OpName %gl_in "gl_in"
               OpName %gl_PerVertex_0 "gl_PerVertex"
               OpMemberName %gl_PerVertex_0 0 "gl_Position"
               OpMemberName %gl_PerVertex_0 1 "gl_PointSize"
               OpMemberName %gl_PerVertex_0 2 "gl_ClipDistance"
               OpMemberName %gl_PerVertex_0 3 "gl_CullDistance"
               OpName %_ ""
               OpName %input_buffer "input_buffer"
               OpMemberName %input_buffer 0 "factor"
               OpName %__0 ""
               OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
               OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
               OpDecorate %gl_PerVertex Block
               OpMemberDecorate %gl_PerVertex_0 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex_0 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex_0 2 BuiltIn ClipDistance
               OpMemberDecorate %gl_PerVertex_0 3 BuiltIn CullDistance
               OpDecorate %gl_PerVertex_0 Block
               OpMemberDecorate %input_buffer 0 Offset 0
               OpDecorate %input_buffer Block
               OpDecorate %__0 DescriptorSet 0
               OpDecorate %__0 Binding 0
       %void = OpTypeVoid
          %3 = OpTypeFunction %void
        %int = OpTypeInt 32 1
%_ptr_Function_int = OpTypePointer Function %int
      %int_0 = OpConstant %int 0
      %int_3 = OpConstant %int 3
       %bool = OpTypeBool
      %float = OpTypeFloat 32
    %v3float = OpTypeVector %float 3
%_ptr_Function_v3float = OpTypePointer Function %v3float
    %v4float = OpTypeVector %float 4
       %uint = OpTypeInt 32 0
     %uint_1 = OpConstant %uint 1
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
     %uint_3 = OpConstant %uint 3
%_arr_gl_PerVertex_uint_3 = OpTypeArray %gl_PerVertex %uint_3
%_ptr_Input__arr_gl_PerVertex_uint_3 = OpTypePointer Input %_arr_gl_PerVertex_uint_3
      %gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_uint_3 Input
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
%_ptr_Output_gl_PerVertex_0 = OpTypePointer Output %gl_PerVertex_0
          %_ = OpVariable %_ptr_Output_gl_PerVertex_0 Output
%input_buffer = OpTypeStruct %float
%_ptr_StorageBuffer_input_buffer = OpTypePointer StorageBuffer %input_buffer
        %__0 = OpVariable %_ptr_StorageBuffer_input_buffer StorageBuffer
%_ptr_StorageBuffer_float = OpTypePointer StorageBuffer %float
    %float_1 = OpConstant %float 1
%_ptr_Output_v4float = OpTypePointer Output %v4float
      %int_1 = OpConstant %int 1
       %main = OpFunction %void None %3
          %5 = OpLabel
          %i = OpVariable %_ptr_Function_int Function
      %point = OpVariable %_ptr_Function_v3float Function
               OpStore %i %int_0
               OpBranch %10
         %10 = OpLabel
               OpLoopMerge %12 %13 None
               OpBranch %14
         %14 = OpLabel
         %15 = OpLoad %int %i
         %18 = OpSLessThan %bool %15 %int_3
               OpBranchConditional %18 %11 %12
         %11 = OpLabel
         %32 = OpLoad %int %i
         %34 = OpAccessChain %_ptr_Input_v4float %gl_in %32 %int_0
         %35 = OpLoad %v4float %34
         %36 = OpVectorShuffle %v3float %35 %35 0 1 2
               OpStore %point %36
         %40 = OpLoad %v3float %point
         %45 = OpAccessChain %_ptr_StorageBuffer_float %__0 %int_0
         %46 = OpLoad %float %45
         %47 = OpVectorTimesScalar %v3float %40 %46
         %49 = OpCompositeExtract %float %47 0
         %50 = OpCompositeExtract %float %47 1
         %51 = OpCompositeExtract %float %47 2
         %52 = OpCompositeConstruct %v4float %49 %50 %51 %float_1
         %54 = OpAccessChain %_ptr_Output_v4float %_ %int_0
               OpStore %54 %52
               OpEmitVertex
               OpBranch %13
         %13 = OpLabel
         %55 = OpLoad %int %i
         %57 = OpIAdd %int %55 %int_1
               OpStore %i %57
               OpBranch %10
         %12 = OpLabel
               OpEndPrimitive
               OpReturn
               OpFunctionEnd
[fragment shader]
#version 430
layout(location = 0) out vec4 outColor;
void main() {
    outColor = vec4(0.5, 0.5, 0.5, 0.5);
}

[test]
ssbo 0:0 subdata float 0 0.5
clear
draw rect -1 -1 2 2

probe rect rgba (62, 62, 125, 125) (0.5 0.5 0.5 0.5)
probe rect rgba (0, 0, 250, 62) (0.0 0.0 0.0 0.0)
probe rect rgba (0, 0, 62, 250) (0.0 0.0 0.0 0.0)
probe rect rgba (187, 0, 63, 250) (0.0 0.0 0.0 0.0)
probe rect rgba (0, 187, 250, 63) (0.0 0.0 0.0 0.0)