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64 lines
1.5 KiB
ReStructuredText
64 lines
1.5 KiB
ReStructuredText
llvm-prof - print execution profile of LLVM program
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===================================================
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SYNOPSIS
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--------
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**llvm-prof** [*options*] [*bitcode file*] [*llvmprof.out*]
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DESCRIPTION
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-----------
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The **llvm-prof** tool reads in an *llvmprof.out* file (which can
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optionally use a specific file with the third program argument), a bitcode 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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This program is often used in conjunction with the *utils/profile.pl*
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script. This script automatically instruments a program, runs it with the JIT,
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then runs **llvm-prof** to format a report. To get more information about
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*utils/profile.pl*, execute it with the **-help** option.
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OPTIONS
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-------
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**--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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**--print-all-code**
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Using this option enables the **--annotated-llvm** 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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**--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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EXIT STATUS
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-----------
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**llvm-prof** returns 1 if it cannot load the bitcode file or the profile
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information. Otherwise, it exits with zero.
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