llvm-prof - print execution profile of LLVM program
llvm-prof [options] [bitcode file] [llvmprof.out]
The llvm-prof tool reads in an llvmprof.out file (which can optionally
use a specific file with the third program argument), a bitcode file
for the program, and produces a human readable report, suitable for
determining where the program hotspots are.
This program is often used in conjunction with the utils/profile.pl
script. This script automatically instruments a program, runs it with
the JIT, then runs llvm-prof to format a report. To get more
information about utils/profile.pl, execute it with the -help option.
--annotated-llvm or -A
In addition to the normal report printed, print out the code for
the program, annotated with execution frequency information. This
can be particularly useful when trying to visualize how frequently
basic blocks are executed. This is most useful with basic block
profiling information or better.
Using this option enables the --annotated-llvm option, but it
prints the entire module, instead of just the most commonly
Record the amount of time needed for each pass and print it to
llvm-prof returns 1 if it cannot load the bitcode file or the profile
information. Otherwise, it exits with zero.
llvm-prof is maintained by the LLVM Team (<http://llvm.org>).