[hls-fuzzer] Implement statistics for II - #991
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Multiple optimizations that we want to test are dependent on the II of the program. For this reason we want to be able to generate programs with either a wide variety or a specific bias regarding the II. To measure this property, this PR adds a new statistic that displays the II achieved during simulation. The measurements shown are 1) a histogram that for a given II shows how many times that II occurred, the number of loops in total (i.e. number of measurements for II) and the median II. Note that at the moment, if a loop is nested within another loop, then each loop iteration will be counted towards the II.
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| size_t pos = ref.find("II_INSTRUMENT:"); | ||
| if (pos == llvm::StringRef::npos) | ||
| continue; | ||
|
|
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Could you pls add an example of the JSON being parsed here?
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Multiple optimizations that we want to test are dependent on the II of the program. For this reason we want to be able to generate programs with either a wide variety or a specific bias regarding the II.
To measure this property, this PR adds a new statistic that displays the II achieved during simulation. The measurements shown are 1) a histogram that for a given II shows how many times that II occurred, the number of loops in total (i.e. number of measurements for II) and the median II.
Note that at the moment, if a loop is nested within another loop, then each loop iteration will be counted towards the II.
Depends on #988