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Mehdi Amini de92dc3fe2 Interprocedural Register Allocation (IPRA) Analysis 
Add an option to enable the analysis of MachineFunction register
usage to extract the list of clobbered registers.

When enabled, the CodeGen order is changed to be bottom up on the Call
Graph.

The analysis is split in two parts, RegUsageInfoCollector is the
MachineFunction Pass that runs post-RA and collect the list of
clobbered registers to produce a register mask.

An immutable pass, RegisterUsageInfo, stores the RegMask produced by
RegUsageInfoCollector, and keep them available. A future tranformation
pass will use this information to update every call-sites after
instruction selection.

Patch by Vivek Pandya <vivekvpandya@gmail.com>

Differential Revision: http://reviews.llvm.org/D20769

llvm-svn: 272403
2016-06-10 16:19:46 +00:00
bindings Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
cmake [CMake] Removing fallback code for CMake versions before 3.1 2016-06-09 23:53:22 +00:00
docs Update call site attribute documentation 2016-06-10 00:36:57 +00:00
examples [Orc] Add conversion to/from RuntimeDyld::SymbolInfo for JITSymbol. 2016-05-31 23:14:26 +00:00
include Interprocedural Register Allocation (IPRA) Analysis 2016-06-10 16:19:46 +00:00
lib Interprocedural Register Allocation (IPRA) Analysis 2016-06-10 16:19:46 +00:00
projects
resources
test Interprocedural Register Allocation (IPRA) Analysis 2016-06-10 16:19:46 +00:00
tools Make PDBFile take a StreamInterface instead of a MemBuffer. 2016-06-10 05:10:19 +00:00
unittests Add support for writing through StreamInterface. 2016-06-10 05:09:12 +00:00
utils [lit] Only gather redirected files for command failures. 2016-06-10 04:17:30 +00:00
.arcconfig
.clang-format
.clang-tidy Don't use misc-unused-parameters check on LLVM. 2016-04-13 08:58:52 +00:00
.gitignore
CMakeLists.txt [CMake] Cleanup version checks for CMake 3.0 2016-06-08 22:38:30 +00:00
CODE_OWNERS.TXT Sort my entry in CODE_OWNERS.TXT 2016-05-26 23:10:37 +00:00
configure
CREDITS.TXT Update my email address. 2016-05-10 16:23:54 +00:00
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:41:06 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
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 documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.