This change has virtually no code size regressions on the llvm test suite (+ SPECs) while having these improvements (measured with -Os on Darwin arm64): External/S.../CFP2006/450.soplex/450.soplex 214024.00 213920.00 -0.0% External/S...7speed/641.leela_s/641.leela_s 93412.00 93348.00 -0.1% External/S...17rate/541.leela_r/541.leela_r 93412.00 93348.00 -0.1% MultiSourc.../Applications/JM/lencod/lencod 426044.00 425748.00 -0.1% MultiSourc...rks/mediabench/gsm/toast/toast 20436.00 20416.00 -0.1% MultiSourc...ench/telecomm-gsm/telecomm-gsm 20436.00 20416.00 -0.1% MultiSourc...Prolangs-C/assembler/assembler 16172.00 16156.00 -0.1% MultiSourc...nch/mpeg2/mpeg2dec/mpeg2decode 35332.00 35256.00 -0.2% SingleSour...Adobe-C++/stepanov_abstraction 6904.00 6888.00 -0.2% External/SPEC/CINT2000/254.gap/254.gap 366060.00 365132.00 -0.3% MultiSourc...-ProxyApps-C++/PENNANT/PENNANT 79688.00 79484.00 -0.3% External/S...NT2006/464.h264ref/464.h264ref 352044.00 351132.00 -0.3% SingleSour...arks/Adobe-C++/functionobjects 15524.00 15480.00 -0.3% SingleSour...arks/Adobe-C++/stepanov_vector 10728.00 10696.00 -0.3% SingleSour...ks/Misc-C++/stepanov_container 16900.00 16848.00 -0.3% MultiSource/Applications/oggenc/oggenc 124184.00 123780.00 -0.3% SingleSour...tout-C++/Shootout-C++-wordfreq 7060.00 7036.00 -0.3% MultiSourc...ity-rijndael/security-rijndael 8976.00 8936.00 -0.4% MultiSource/Benchmarks/McCat/18-imp/imp 9816.00 9772.00 -0.4% SingleSour...chmarks/Misc-C++/stepanov_v1p2 1772.00 1764.00 -0.5% MultiSourc...iabench/g721/g721encode/encode 5492.00 5464.00 -0.5% MultiSourc...rks/McCat/03-testtrie/testtrie 1364.00 1344.00 -1.5% SingleSour.../execute/GCC-C-execute-pr42833 400.00 364.00 -9.0% Doing so also prevents a regression described in https://reviews.llvm.org/D143624 Differential Revision: https://reviews.llvm.org/D149918
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Getting the Source Code and Building LLVM
Consult the Getting Started with LLVM page for information on building and running LLVM.
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