17ad62eea4
DX may emit ArrayStride and MatrixStride of 16, but the size of the object does not align with that and expect to pack other members inside its last member. The workaround is to emit array size/col/row one less than we expect and rely on padding to carve out a "dead zone" for the last member.
52 lines
2.1 KiB
JavaScript
52 lines
2.1 KiB
JavaScript
; SPIR-V
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; Version: 1.0
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; Generator: Google spiregg; 0
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; Bound: 26
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; Schema: 0
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %out_var_SV_Target
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OpExecutionMode %main OriginUpperLeft
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OpSource HLSL 600
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OpName %type_Foo "type.Foo"
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OpMemberName %type_Foo 0 "a"
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OpMemberName %type_Foo 1 "b"
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OpName %Foo "Foo"
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OpName %out_var_SV_Target "out.var.SV_Target"
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OpName %main "main"
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OpDecorate %out_var_SV_Target Location 0
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OpDecorate %Foo DescriptorSet 0
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OpDecorate %Foo Binding 0
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OpDecorate %_arr_v3float_uint_1 ArrayStride 16
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OpMemberDecorate %type_Foo 0 Offset 0
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OpMemberDecorate %type_Foo 1 Offset 12
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OpDecorate %type_Foo Block
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%int_1 = OpConstant %int 1
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%uint = OpTypeInt 32 0
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%uint_1 = OpConstant %uint 1
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%float = OpTypeFloat 32
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%v3float = OpTypeVector %float 3
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%_arr_v3float_uint_1 = OpTypeArray %v3float %uint_1
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%type_Foo = OpTypeStruct %_arr_v3float_uint_1 %float
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%_ptr_Uniform_type_Foo = OpTypePointer Uniform %type_Foo
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%_ptr_Output_v3float = OpTypePointer Output %v3float
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%void = OpTypeVoid
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%16 = OpTypeFunction %void
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%_ptr_Uniform_v3float = OpTypePointer Uniform %v3float
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%_ptr_Uniform_float = OpTypePointer Uniform %float
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%Foo = OpVariable %_ptr_Uniform_type_Foo Uniform
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%out_var_SV_Target = OpVariable %_ptr_Output_v3float Output
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%main = OpFunction %void None %16
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%19 = OpLabel
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%20 = OpAccessChain %_ptr_Uniform_v3float %Foo %int_0 %int_0
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%21 = OpLoad %v3float %20
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%22 = OpAccessChain %_ptr_Uniform_float %Foo %int_1
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%23 = OpLoad %float %22
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%24 = OpCompositeConstruct %v3float %23 %23 %23
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%25 = OpFAdd %v3float %21 %24
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OpStore %out_var_SV_Target %25
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OpReturn
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OpFunctionEnd
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