[LLVMdev] Basic Block Frequency counting in LLVM 2.9

[Rajendra Patel]

Dear All,

I'm using LLVM2.9 for profiling basic block frequency. 
I'm using following commands.

rdpatel55 at ubuntu:~$ llvm-gcc -emit-llvm -O0 -c -o adpcm.bc adpcm.c
rdpatel55 at ubuntu:~$ llvm-gcc -emit-llvm -O0 -c -o rawcaudio.bc rawcaudio.c 
rdpatel55 at ubuntu:~$ llvm-link -o main.bc rawcaudio.bc adpcm.bc 
rdpatel55 at ubuntu:~$ opt -q -f -insert-edge-profiling -o main.inst main.bc 
rdpatel55 at ubuntu:~$ lli -fake-argv0 'main.bc' -load
/home/rdpatel55/RDPATEL/LLVM2.9/OBJ_ROOT/Debug+Profile/lib/profile_rt.so
main.inst < ./small.pcm > op_small.adpcm
rdpatel55 at ubuntu:~$ llvm-prof main.inst > profile.txt
rdpatel55 at ubuntu:~$ llvm-prof -annotated-llvm main.inst > bb.txt (This gives BB
frequency for all Blocks)

It works fine. But I found that for certain blocks the execution frequency
calculated is wrong.

Is there someone to help me to figure out, where something is wrong?

Thank you,

Rajendra Patel