Sub:-code added by my path profiler module not executing with llvm-gcc -03 When compile with llvm-gcc -O3 the path profile result shows frequency count of zero for all paths ins some functions I have four functions insert,delete,print and main. It prints correct values for delete's and main's paths and zero values for print's and insert's paths. This problem occurs only with -O3 option. It is working correctly with llvm-gcc -O1 I first generated .ll fine using llvm-gcc -O3 and then used opt to insert path profiling. Then used llvm-as and llvm-ld -lprofile_rt to get the executable. Can you suggest what went wrong? Thanking you Unnikrishnan C Research Scholar Indian Institute of Science -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.