LLVM-PROF(1) LLVM LLVM-PROF(1)NAME
llvm-prof - print execution profile of LLVM program
SYNOPSIS
llvm-prof [options] [bitcode file] [llvmprof.out]
DESCRIPTION
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 informa‐
tion about utils/profile.pl, execute it with the -help option.
OPTIONS--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.
--print-all-code
Using this option enables the --annotated-llvm option, but it prints
the entire module, instead of just the most commonly executed func‐
tions.
--time-passes
Record the amount of time needed for each pass and print it to stan‐
dard error.
EXIT STATUS
llvm-prof returns 1 if it cannot load the bitcode file or the profile
information. Otherwise, it exits with zero.
AUTHOR
Maintained by The LLVM Team (http://llvm.org/).
COPYRIGHT
2003-2013, LLVM Project
3.4 2016-02-17 LLVM-PROF(1)
