Does using RWStructuredBuffer using as StructuredBuffer has performance penalty?

In many Unity project I see common pattern of forward declaring shaders and buffers and using some buffer in compute shader as UAV and then using it as SRV for read though it is declared as RWStructuredBuffer. This may affect performance due to binding as UAV may cause unnecessary cache flushes.
Is there any way to declare shader in some region with all resources in same shader file? For example
#pragma kernel kernel1
StructuredBuffer<float> buffer1;
RWStructuredBuffer<float3> buffer2;

#pragma kernel kernel2
StructuredBuffer<float> buffer2;
RWStructuredBuffer<float3> buffer3;

So that resource state would be correct for each shader. This would also greatly increased ReanderDoc readablity.

 

Thanks a lot!
But I see that there is an ability to declare define per shader kernel - is it suitable for isolating shader code and its resources?