llvm-profgen - LLVM SPGO profile generation tool¶
SYNOPSIS¶
llvm-profgen [commands] [options]
DESCRIPTION¶
The llvm-profgen utility generates a profile data file from given perf script data files for sample-based profile guided optimization(SPGO).
COMMANDS¶
At least one of the following commands are required:
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--perfscript=<string[,string,...]>¶ Path of perf-script trace created by Linux perf tool with script command(the raw perf.data should be profiled with -b).
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--binary=<string[,string,...]>¶ Path of the input profiled binary files.
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--output=<string>¶ Path of the output profile file.
OPTIONS¶
llvm-profgen supports the following options:
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--format=[text|binary|extbinary|compbinary|gcc]¶ Specify the format of the generated profile. Supported <format> are text, binary, extbinary, compbinary, gcc, see llvm-profdata for more descriptions of the format.
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--show-mmap-events¶ Print mmap events.
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--show-disassembly¶ Print disassembled code.
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--x86-asm-syntax=[att|intel]¶ Specify whether to print assembly code in AT&T syntax (the default) or Intel syntax.
