174 lines
5.4 KiB
Groff
174 lines
5.4 KiB
Groff
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.14
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.\" ========================================================================
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.\"
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.IX Title "LLVM-PROF 1"
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.TH LLVM-PROF 1 "2006-03-13" "CVS" "LLVM Command Guide"
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.SH "NAME"
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llvm\-prof \- print execution profile of LLVM program
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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\&\fBllvm-prof\fR [\fIoptions\fR] [\fIbytecode file\fR] [\fIllvmprof.out\fR]
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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The \fBllvm-prof\fR tool reads in an \fIllvmprof.out\fR file (which can
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optionally use a specific file with the third program argument), a bytecode file
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for the program, and produces a human readable report, suitable for determining
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where the program hotspots are.
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.PP
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This program is often used in conjunction with the \fIutils/profile.pl\fR
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script. This script automatically instruments a program, runs it with the \s-1JIT\s0,
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then runs \fBllvm-prof\fR to format a report. To get more information about
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\&\fIutils/profile.pl\fR, execute it with the \fB\-\-help\fR option.
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.SH "OPTIONS"
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.IX Header "OPTIONS"
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.IP "\fB\-\-annotated\-llvm\fR or \fB\-A\fR" 4
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.IX Item "--annotated-llvm or -A"
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In addition to the normal report printed, print out the code for the
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program, annotated with execution frequency information. This can be
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particularly useful when trying to visualize how frequently basic blocks
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are executed. This is most useful with basic block profiling
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information or better.
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.IP "\fB\-\-print\-all\-code\fR" 4
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.IX Item "--print-all-code"
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Using this option enables the \fB\-\-annotated\-llvm\fR option, but it
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prints the entire module, instead of just the most commonly executed
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functions.
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.IP "\fB\-\-time\-passes\fR" 4
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.IX Item "--time-passes"
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Record the amount of time needed for each pass and print it to standard
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error.
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.SH "EXIT STATUS"
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.IX Header "EXIT STATUS"
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\&\fBllvm-prof\fR returns 1 if it cannot load the bytecode file or the profile
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information. Otherwise, it exits with zero.
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.SH "AUTHOR"
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.IX Header "AUTHOR"
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\&\fBllvm-prof\fR is maintained by the \s-1LLVM\s0 Team (<http://llvm.org>).
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