Dear Reader, A few years ago I had already posted a question about implementing a metrication tool in GCC, i.e. a tool that can measure several metrics from the source code. Examples could be, the number of variables, number of multiplications, number of loops, number of functions, etc. At that time I needed that information for a Hardware Estimation Model I was building for my MSc. Thesis (http://ce.et.tudelft.nl/~rmeeuws/thesis.pdf). I was pointed to the ELSA compiler frontend which suited my purposes just fine...
However, currently in my PhD work I have to take the model several steps further... First, I need to increase the models accuracy. One source of inaccuracy is that the metrics I use are determined at a very high level, i.e. I am counting operations that are removed by optimizations, like constant propagation, common subexpression elimination, dead code removal, etc. Therefore I need to measure some of the metrics at a lower level, which I aim to do using GCC, because in time the hardware generator (from c code) we use at our department will probably be moved to GCC at some point as well. So here is what I would like to know: what kind of metrics could I measure at e.g. GIMPLE level, and what steps do I need to take to implement a pass for GIMPLE to measure the needed values? Many thanks in advance for any help you can provide, with Kind Regards, Roel -- -------------------------------------------- Roel Meeuws PhD. Student Delft University of Technology Faculty of Electrical Engineering Mathematics and Computer Science Computer Engineering Laboratory Mekelweg 4, 2628 CD Delft, The Netherlands -------------------------------------------- Email:[EMAIL PROTECTED] Office: HB 16.290 Office phone: +31 (0)15 27 82 165 Mob. phone: +31 (0)6 10 82 44 01 --------------------------------------------
