| llvm-profgen - LLVM SPGO profile generation tool |
| ================================================ |
| |
| .. program:: llvm-profgen |
| |
| SYNOPSIS |
| -------- |
| |
| :program:`llvm-profgen` [*commands*] [*options*] |
| |
| DESCRIPTION |
| ----------- |
| |
| The :program:`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: |
| |
| .. option:: --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). |
| |
| .. option:: --binary=<string[,string,...]> |
| |
| Path of the input profiled binary files. |
| |
| .. option:: --output=<string> |
| |
| Path of the output profile file. |
| |
| OPTIONS |
| ------- |
| :program:`llvm-profgen` supports the following options: |
| |
| .. option:: --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. |
| |
| .. option:: --show-mmap-events |
| |
| Print mmap events. |
| |
| .. option:: --show-disassembly |
| |
| Print disassembled code. |
| |
| .. option:: --x86-asm-syntax=[att|intel] |
| |
| Specify whether to print assembly code in AT&T syntax (the default) or Intel |
| syntax. |
