[llvm-bugs] [Bug 51041] New: [llvm-mca][JSON] Store extra information about the driver flags used for the simulation.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51041

            Bug ID: 51041
           Summary: [llvm-mca][JSON] Store extra information about the
                    driver flags used for the simulation.
           Product: tools
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: llvm-mca
          Assignee: unassignedbugs at nondot.org
          Reporter: andrea.dibiagio at gmail.com
                CC: andrea.dibiagio at gmail.com, llvm-bugs at lists.llvm.org,
                    matthew.davis at sony.com

To be able to reproduce the results of an experiment, it is important to know
which flags were used during a simulation.

Some driver flags can significant impact the entire simulation. For example,
flag -noalias changes how loads / stores dependencies are perceived by the
simulator.

It is not always possible to infer which flags were used during a simulation.
So, ideally, it would be nice if we could store them into a special section of
the JSON file.

Example of flags which can affect the simulation are:
-lqueue , -squeue , -mcpu, -mtriple, -march, -noalias.

For simplicity, we could simply just store the sequence of string arguments
passed in input to llvm-mca.

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