71b5f57f0d
addi sp, sp, 512 may be used to recover the sp in the epilogue when stack size is larger than 2047(2^11 - 1), however, it can not be compressed using C extension, and addi sp, sp, 496 is able to be compressed, so try to use 496 as the ajust amount of the fisrt sp if function doesn't need extra instructions after adjust. Reviewed By: wangpc Differential Revision: https://reviews.llvm.org/D159431
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.
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