Dependence Analysis on Machine code

Project Infrastructure LLVM Dev List Archives
#1

Hi,

I am trying to do dependence analysis (loop dependences) on machine code.
But, scalar evolution doesn’t work as expected (like at IR level - opt pass).
I am not getting enough clue as to how to proceed…

One naive way of getting the dependence information can be

  • Do dependence analysis at IR level and attach the information as meta data.
    And then use this information at machine code level.
    Can someone suggest better approach ??
#2

It sounds like you have a good clue how to proceed. I can't think of a better way.
-Andy

#3

Thanks Andrew for the reply :slight_smile:
I will try this out and see if it gives some satisfactory results.

–Rahul