Abdul Wahid Memon <engrwahidmemon@xxxxxxxxx> writes: > Thanks alot. Its working well at GIMPLE but for RTL, it is again > posing a problem of internal compiler error. loop_optimizer_init does work for RTL passes, so you are going to have to debug what is going wrong. Ian > 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 Âif (!current_loops) Â Âreturn 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 >>
