llvm-profgen-181
Llvm spgo profile generation tool
Usage
llvm-profgen [commands]
[options]
Overview
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:
-
--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.
Options
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.