spv.atomicRvalue.error.vert
ERROR: 0:5: 'assign' :  l-value required 
ERROR: 0:5: 'out' : Non-L-value cannot be passed for 'out' or 'inout' parameters. 
ERROR: 0:5: 'atomicAdd' : Only l-values corresponding to shader block storage or shared variables can be used with atomic memory functions. 
ERROR: 0:6: 'atomicAdd' : Only l-values corresponding to shader block storage or shared variables can be used with atomic memory functions. 
ERROR: 4 compilation errors.  No code generated.


SPIR-V is not generated for failed compile or link