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2012 May 07
0
[LLVMdev] A problem with optimal edge profiling.
...a.bc
anon at anonVB:~/MiBench/automotive/qsort$ opt a.bc
-insert-optimal-edge-profiling -O2 -o a_oep.bc
anon at anonVB:~/MiBench/automotive/qsort$ llc a_oep.bc -O2 -o a.s
anon at anonVB:~/MiBench/automotive/qsort$ clang a.s ./libprofile_rt.so -O2 -o
a
anon at anonVB:~/MiBench/automotive/qsort$ ./a input_large.dat > out.txt
anon at anonVB:~/MiBench/automotive/qsort$ opt a_oep.bc -profile-loader
-block-placement -O2 -o a_opt.bc
*waited for a few minutes*
^C
Is it a bug or just me doing something wrong?
Also I notice that edge profiling optimizations make MiBench programs work
slower. (I use -block-pla...