SPIRV-Cross/shaders-no-opt/asm/comp/atomic-load-store.asm.comp
Hans-Kristian Arntzen 9b7140e2ba Implement OpAtomicLoad/OpAtomicStore.
Need some emulation on GLSL/HLSL, fix bug with atomic store on MSL.
2020-04-27 12:11:46 +02:00

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; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 8
; Bound: 23
; 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 %c "c"
OpName %SSBO "SSBO"
OpMemberName %SSBO 0 "a"
OpMemberName %SSBO 1 "b"
OpName %_ ""
OpMemberDecorate %SSBO 0 Offset 0
OpMemberDecorate %SSBO 1 Offset 4
OpDecorate %SSBO BufferBlock
OpDecorate %_ DescriptorSet 0
OpDecorate %_ Binding 0
OpDecorate %gl_WorkGroupSize BuiltIn WorkgroupSize
%void = OpTypeVoid
%3 = OpTypeFunction %void
%uint = OpTypeInt 32 0
%_ptr_Function_uint = OpTypePointer Function %uint
%SSBO = OpTypeStruct %uint %uint
%_ptr_Uniform_SSBO = OpTypePointer Uniform %SSBO
%_ = OpVariable %_ptr_Uniform_SSBO Uniform
%int = OpTypeInt 32 1
%int_1 = OpConstant %int 1
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%int_0 = OpConstant %int 0
%v3uint = OpTypeVector %uint 3
%uint_1 = OpConstant %uint 1
%gl_WorkGroupSize = OpConstantComposite %v3uint %uint_1 %uint_1 %uint_1
%main = OpFunction %void None %3
%5 = OpLabel
%c = OpVariable %_ptr_Function_uint Function
%15 = OpAccessChain %_ptr_Uniform_uint %_ %int_1
%16 = OpAtomicLoad %uint %15 %int_1 %int_0
OpStore %c %16
%18 = OpLoad %uint %c
%19 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
OpAtomicStore %19 %int_1 %int_0 %18
OpReturn
OpFunctionEnd