Thanks alot. Its working well at GIMPLE but for RTL, it is again posing a problem of internal compiler error. Regards Abdul On Thu, May 19, 2011 at 2:28 AM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > Abdul Wahid Memon <engrwahidmemon@xxxxxxxxx> writes: > >> I am facing some problem at obtaining the number of loops in the source program. >> I am trying to use a function number_of_loops defined in cfgloop.h >> with the help of plugin. >> >> I have tried to capture this at both GIMPLE level after copy headers >> pass where I always get the value of 0, >> because the condition if (!current_loops) return 0; is (I think) >> always becoming true and the same thing happens >> at RTL after 'loop2_init' pass but I get the value of 1 even in the >> presence or in the absence of any loop. >> >> This is the first time I am playing with GCC plugins. Please help me >> out with this issue. >> >> PS: The passes after which I am puting my passes are definitely >> producing the information about the loops as >> can be seen from the dumps produced by copy headers pass and loop >> initialization. > > If you want to call number_of_loops you need to call loop_optimizer_init > at the start of your pass and loop_optimizer_finalize at the end of it. > > Ian >
