Hi, I wanted to use bb->count, so I expected that -fprofile-arcs and -fbranch-probabilities would help. I added printf just before peephole2 optimization and ran the following.
$gcc -O3 -fprofile-arcs test.c -o test $./test (which produced test.gcno only, but no test.gcda) $gcc -O3 -fprofile-arcs -fbranch-probabilities test.c -o test But it turned out that all the basic block counts were 0. Any idea how I can see bb->count set. Regards, Haibin
