SPIRV-Cross/shaders-no-opt/asm/comp/aliased-struct-divergent-member-name.asm.comp
Hans-Kristian Arntzen a0c13e4ee8 Do not consider aliased struct types if the master is not a block.
It is possible for a shader to declare two plain struct types which
simply share the same OpName without there being an implicit
value/buffer alias relationship.

For to_member_name(), make sure to use the type alias master when
resolving member names. The member name may be different in a type alias
master if the SPIR-V is being intentionally difficult.
2019-10-07 10:52:16 +02:00

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; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 7
; Bound: 37
; Schema: 0
OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpSource GLSL 450
OpName %main "main"
OpName %T "T"
OpMemberName %T 0 "a"
OpName %v "v"
OpName %T_0 "T"
OpMemberName %T_0 0 "b"
OpName %SSBO1 "SSBO1"
OpMemberName %SSBO1 0 "foo"
OpName %_ ""
OpName %T_1 "T"
OpMemberName %T_1 0 "c"
OpName %SSBO2 "SSBO2"
OpMemberName %SSBO2 0 "bar"
OpName %__0 ""
OpMemberDecorate %T_0 0 Offset 0
OpDecorate %_runtimearr_T_0 ArrayStride 4
OpMemberDecorate %SSBO1 0 Offset 0
OpDecorate %SSBO1 BufferBlock
OpDecorate %_ DescriptorSet 0
OpDecorate %_ Binding 0
OpMemberDecorate %T_1 0 Offset 0
OpDecorate %_runtimearr_T_1 ArrayStride 16
OpMemberDecorate %SSBO2 0 Offset 0
OpDecorate %SSBO2 BufferBlock
OpDecorate %__0 DescriptorSet 0
OpDecorate %__0 Binding 1
%void = OpTypeVoid
%3 = OpTypeFunction %void
%float = OpTypeFloat 32
%T = OpTypeStruct %float
%_ptr_Function_T = OpTypePointer Function %T
%float_40 = OpConstant %float 40
%11 = OpConstantComposite %T %float_40
%T_0 = OpTypeStruct %float
%_runtimearr_T_0 = OpTypeRuntimeArray %T_0
%SSBO1 = OpTypeStruct %_runtimearr_T_0
%_ptr_Uniform_SSBO1 = OpTypePointer Uniform %SSBO1
%_ = OpVariable %_ptr_Uniform_SSBO1 Uniform
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%int_10 = OpConstant %int 10
%_ptr_Uniform_T_0 = OpTypePointer Uniform %T_0
%_ptr_Uniform_float = OpTypePointer Uniform %float
%T_1 = OpTypeStruct %float
%_runtimearr_T_1 = OpTypeRuntimeArray %T_1
%SSBO2 = OpTypeStruct %_runtimearr_T_1
%_ptr_Uniform_SSBO2 = OpTypePointer Uniform %SSBO2
%__0 = OpVariable %_ptr_Uniform_SSBO2 Uniform
%int_30 = OpConstant %int 30
%_ptr_Uniform_T_1 = OpTypePointer Uniform %T_1
%main = OpFunction %void None %3
%5 = OpLabel
%v = OpVariable %_ptr_Function_T Function
OpStore %v %11
%20 = OpLoad %T %v
%22 = OpAccessChain %_ptr_Uniform_T_0 %_ %int_0 %int_10
%23 = OpCompositeExtract %float %20 0
%25 = OpAccessChain %_ptr_Uniform_float %22 %int_0
OpStore %25 %23
%32 = OpLoad %T %v
%34 = OpAccessChain %_ptr_Uniform_T_1 %__0 %int_0 %int_30
%35 = OpCompositeExtract %float %32 0
%36 = OpAccessChain %_ptr_Uniform_float %34 %int_0
OpStore %36 %35
OpReturn
OpFunctionEnd