1; SPIR-V
2; Version: 1.3
3; Generator: Google Tint Compiler; 0
4; Bound: 31
5; Schema: 0
6               OpCapability Shader
7               OpMemoryModel Logical GLSL450
8               OpEntryPoint GLCompute %compute_main "compute_main" %local_invocation_index_1
9               OpExecutionMode %compute_main LocalSize 1 1 1
10               OpName %local_invocation_index_1 "local_invocation_index_1"
11               OpName %arg_0 "arg_0"
12               OpName %atomicSub_0d26c2 "atomicSub_0d26c2"
13               OpName %res "res"
14               OpName %compute_main_inner "compute_main_inner"
15               OpName %local_invocation_index "local_invocation_index"
16               OpName %compute_main "compute_main"
17               OpDecorate %local_invocation_index_1 BuiltIn LocalInvocationIndex
18       %uint = OpTypeInt 32 0
19%_ptr_Input_uint = OpTypePointer Input %uint
20%local_invocation_index_1 = OpVariable %_ptr_Input_uint Input
21%_ptr_Workgroup_uint = OpTypePointer Workgroup %uint
22      %arg_0 = OpVariable %_ptr_Workgroup_uint Workgroup
23       %void = OpTypeVoid
24          %6 = OpTypeFunction %void
25     %uint_2 = OpConstant %uint 2
26     %uint_0 = OpConstant %uint 0
27     %uint_1 = OpConstant %uint 1
28%_ptr_Function_uint = OpTypePointer Function %uint
29         %17 = OpConstantNull %uint
30         %18 = OpTypeFunction %void %uint
31   %uint_264 = OpConstant %uint 264
32%atomicSub_0d26c2 = OpFunction %void None %6
33          %9 = OpLabel
34        %res = OpVariable %_ptr_Function_uint Function %17
35         %10 = OpAtomicISub %uint %arg_0 %uint_2 %uint_0 %uint_1
36               OpStore %res %10
37               OpReturn
38               OpFunctionEnd
39%compute_main_inner = OpFunction %void None %18
40%local_invocation_index = OpFunctionParameter %uint
41         %21 = OpLabel
42               OpAtomicStore %arg_0 %uint_2 %uint_0 %17
43               OpControlBarrier %uint_2 %uint_2 %uint_264
44         %26 = OpFunctionCall %void %atomicSub_0d26c2
45               OpReturn
46               OpFunctionEnd
47%compute_main = OpFunction %void None %6
48         %28 = OpLabel
49         %30 = OpLoad %uint %local_invocation_index_1
50         %29 = OpFunctionCall %void %compute_main_inner %30
51               OpReturn
52               OpFunctionEnd
53