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The order of registers returned by getCalleeSavedRegs is used to lay out the fixed stack slots for CSRs. Some targets like their CSRs used from one end, and some targets want them used from the other end. When computing an allocation order, simply preserve the relative ordering of CSRs that the target specifies in its allocation order. Reordering CSRs would break some targets, ARM in particular. We still place volatiles before the CSRs, providing slightly better results with different calling conventions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132680 91177308-0d34-0410-b5e6-96231b3b80d8 |
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autoconf | ||
bindings | ||
cmake | ||
docs | ||
examples | ||
include | ||
lib | ||
projects | ||
runtime | ||
test | ||
tools | ||
unittests | ||
utils | ||
website | ||
.gitignore | ||
build-for-llvm-top.sh | ||
CMakeLists.txt | ||
configure | ||
CREDITS.TXT | ||
LICENSE.TXT | ||
llvm.spec.in | ||
Makefile | ||
Makefile.common | ||
Makefile.config.in | ||
Makefile.rules | ||
ModuleInfo.txt | ||
README.txt |
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the HTML documentation provided in docs/index.html for further assistance with LLVM. If you're writing a package for LLVM, see docs/Packaging.html for our suggestions.