SPIRV-Cross/shaders/comp/casts.comp
Hans-Kristian Arntzen 45ad58a903 Implement more correct integer op handling.
In some cases we need to bitcast when dealing with int vs. uint.
SPIR-V allows inputs to be of different integer signedness, so we need
to deal with this somehow.

Add testing system to test SPIR-V assembly.
For now, test all possible combination for all major cases.

 - IAdd (which doesn't care about input type as long as they're equal)
 - SDiv/UDiv operations which case about input type.
 - Arith/Logical right shifts.
 - IEqual to test outputs to bvec, which shouldn't get output cast. Also
   tests casting in function-like calls.
2016-05-13 15:23:33 +02:00

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#version 310 es
layout(local_size_x = 1) in;
layout(binding = 0, std430) buffer SSBO0
{
ivec4 inputs[];
};
layout(binding = 1, std430) buffer SSBO1
{
ivec4 outputs[];
};
void main()
{
uint ident = gl_GlobalInvocationID.x;
outputs[ident] = ivec4(bvec4(inputs[ident] & 0x3));
}