d92de00cc1
This is a fairly fundamental change on how IDs are handled. It serves many purposes: - Improve performance. We only need to iterate over IDs which are relevant at any one time. - Makes sure we iterate through IDs in SPIR-V module declaration order rather than ID space. IDs don't have to be monotonically increasing, which was an assumption SPIRV-Cross used to have. It has apparently never been a problem until now. - Support LUTs of structs. We do this by interleaving declaration of constants and struct types in SPIR-V module order. To support this, the ParsedIR interface needed to change slightly. Before setting any ID with variant_set<T> we let ParsedIR know that an ID with a specific type has been added. The surface for change should be minimal. ParsedIR will maintain a per-type list of IDs which the cross-compiler will need to consider for later. Instead of looping over ir.ids[] (which can be extremely large), we loop over types now, using: ir.for_each_typed_id<SPIRVariable>([&](uint32_t id, SPIRVariable &var) { handle_variable(var); }); Now we make sure that we're never looking at irrelevant types.
36 lines
603 B
Plaintext
36 lines
603 B
Plaintext
#version 450
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layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
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layout(constant_id = 0) const int a = 100;
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layout(constant_id = 1) const int b = 200;
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struct A
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{
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int member0[a];
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int member1[b];
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};
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struct B
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{
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int member0[b];
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int member1[a];
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};
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layout(constant_id = 2) const int c = 300;
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const int _18 = (c + 50);
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layout(constant_id = 3) const int e = 400;
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layout(set = 1, binding = 0, std430) buffer SSBO
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{
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A member_a;
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B member_b;
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int v[a];
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int w[_18];
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} _22;
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void main()
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{
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_22.w[gl_GlobalInvocationID.x] += (_22.v[gl_GlobalInvocationID.x] + e);
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}
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