llvm-project

Форк
0

README.md

Minimal MLIR binaries

This folder contains example of minimal MLIR setups that can showcase the intended binary footprint of the framework.

  • mlir-cat: This includes the Core IR, the builtin dialect, the textual parser/printer, the support for bytecode serialization.
  • mlir-minimal-opt: This adds all the tooling for an mlir-opt tool: the pass infrastructure and all the instrumentation associated with it.
  • mlir-miminal-opt-canonicalize: This add the canonicalizer pass, which pulls in all the pattern/rewrite machinery, including the PDL compiler and intepreter.

Below are some example measurements taken at the time of the LLVM 17 release, using clang-14 on a X86 Ubuntu and bloaty.

BaseOsOzOs LTOOz LTO
mlir-cat
1024KB840KB885KB706KB657KB
mlir-minimal-opt
1.62MB1.32MB1.36MB1.17MB1.07MB
mlir-minimal-opt-canonicalize
1.83MB1.40MB1.45MB1.25MB1.14MB

Base configuration:

cmake ../llvm/ -G Ninja \ -DCMAKE_BUILD_TYPE=RelWithDebInfo \ -DLLVM_CCACHE_BUILD=ON \ -DLLVM_ENABLE_PROJECTS=mlir \ -DLLVM_BUILD_EXAMPLES=ON \ -DLLVM_TARGETS_TO_BUILD="Native" \ -DCMAKE_C_COMPILER=clang \ -DCMAKE_CXX_COMPILER=clang++ \ -DLLVM_ENABLE_LLD=ON \ -DLLVM_ENABLE_BACKTRACES=OFF \ -DMLIR_ENABLE_PDL_IN_PATTERNMATCH=OFF \ -DCMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO=-Wl,-icf=all

Note: to measure the on-disk size, you need to run

strip bin/mlir-cat
first to remove all the debug info (which are useful for
bloaty
though).

The optimization level can be tuned with

-Os
or
-Oz
:

  • -DCMAKE_C_FLAGS_RELWITHDEBINFO="-Os -g -DNDEBUG" -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-Os -g -DNDEBUG"
  • -DCMAKE_C_FLAGS_RELWITHDEBINFO="-Oz -g -DNDEBUG" -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-Oz -g -DNDEBUG"

Finally LTO can also be enabled with

-DLLVM_ENABLE_LTO=FULL
.

Bloaty can provide measurements using:

bloaty bin/mlir-cat -d compileunits --domain=vm
or
bloaty bin/mlir-cat -d symbols --demangle=full --domain=vm

Использование cookies

Мы используем файлы cookie в соответствии с Политикой конфиденциальности и Политикой использования cookies.

Нажимая кнопку «Принимаю», Вы даете АО «СберТех» согласие на обработку Ваших персональных данных в целях совершенствования нашего веб-сайта и Сервиса GitVerse, а также повышения удобства их использования.

Запретить использование cookies Вы можете самостоятельно в настройках Вашего браузера.