2.0 Release docsrelease_20

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_20@37312 91177308-0d34-0410-b5e6-96231b3b80d8

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+.\" ========================================================================
+.\"
+.IX Title "LLVM-PROF 1"
+.TH LLVM-PROF 1 "2006-03-13" "CVS" "LLVM Command Guide"
+.SH "NAME"
+llvm\-prof \- print execution profile of LLVM program
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+\&\fBllvm-prof\fR [\fIoptions\fR] [\fIbytecode file\fR] [\fIllvmprof.out\fR]
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+The \fBllvm-prof\fR tool reads in an \fIllvmprof.out\fR file (which can
+optionally use a specific file with the third program argument), a bytecode file
+for the program, and produces a human readable report, suitable for determining
+where the program hotspots are.
+.PP
+This program is often used in conjunction with the \fIutils/profile.pl\fR
+script.  This script automatically instruments a program, runs it with the \s-1JIT\s0,
+then runs \fBllvm-prof\fR to format a report.  To get more information about
+\&\fIutils/profile.pl\fR, execute it with the \fB\-\-help\fR option.
+.SH "OPTIONS"
+.IX Header "OPTIONS"
+.IP "\fB\-\-annotated\-llvm\fR or \fB\-A\fR" 4
+.IX Item "--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.
+.IP "\fB\-\-print\-all\-code\fR" 4
+.IX Item "--print-all-code"
+Using this option enables the \fB\-\-annotated\-llvm\fR option, but it
+prints the entire module, instead of just the most commonly executed
+functions.
+.IP "\fB\-\-time\-passes\fR" 4
+.IX Item "--time-passes"
+Record the amount of time needed for each pass and print it to standard
+error.
+.SH "EXIT STATUS"
+.IX Header "EXIT STATUS"
+\&\fBllvm-prof\fR returns 1 if it cannot load the bytecode file or the profile
+information. Otherwise, it exits with zero.
+.SH "AUTHOR"
+.IX Header "AUTHOR"
+\&\fBllvm-prof\fR is maintained by the \s-1LLVM\s0 Team (<http://llvm.org>).