llvm-profgen - LLVM SPGO profile generation tool
llvm-profgen [commands] [options]
The llvm-profgen utility generates a profile data file from given perf script data files for sample-based profile guided optimization(SPGO).
At least one of the following commands are required:
- --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).
- --binary=<string[,string,...]>
Path of the input profiled binary files.
- --output=<string>
Path of the output profile file.
llvm-profgen supports the following options:
- --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.
- --show-mmap-events
Print mmap events.
- --show-disassembly
Print disassembled code.
- --x86-asm-syntax=[att|intel]
Specify whether to print assembly code in AT&T syntax (the default) or Intel syntax.
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