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Tom Stellard 22310389fc AMDGPU/SI: Avoid creating unnecessary copies in the SIFixSGPRCopies pass 
Summary:
1. Don't try to copy values to and from the same register class.
2. Replace copies with of registers with immediate values with v_mov/s_mov
   instructions.

The main purpose of this change is to make MachineSink do a better job of
determining when it is beneficial to split a critical edge, since the pass
assumes that copies will become move instructions.

This prevents a regression in uniform-cfg.ll if we enable critical edge
splitting for AMDGPU.

Reviewers: arsenm

Subscribers: arsenm, kzhuravl, llvm-commits

Differential Revision: https://reviews.llvm.org/D23408

llvm-svn: 287131
2016-11-16 18:42:17 +00:00
bindings [OCaml] Adapt to the new attribute C API. 2016-11-12 03:38:30 +00:00
cmake Reverting r285406, which was a temporary workaround to get one of the documentation bots upgraded to something newer than GCC 4.7. This restores the check for GCC 4.8. 2016-11-14 13:33:51 +00:00
docs [XRay][docs] Define requirements on installed log handlers. 2016-11-16 02:18:23 +00:00
examples [Orc] Update the BuildingAJIT Chapter 5 server class for the recent RPC changes. 2016-11-11 21:55:25 +00:00
include [ExecutionEngine] Fix examples build broken in r287126 and other Include What You Use warnings. 2016-11-16 18:32:58 +00:00
lib AMDGPU/SI: Avoid creating unnecessary copies in the SIFixSGPRCopies pass 2016-11-16 18:42:17 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources
runtimes [CMake] Make the runtimes directory work with bootstrap builds 2016-10-19 21:50:25 +00:00
test AMDGPU/SI: Avoid creating unnecessary copies in the SIFixSGPRCopies pass 2016-11-16 18:42:17 +00:00
tools [ELF] Convert ELF.h to Expected<T>. 2016-11-16 05:10:28 +00:00
unittests [Orc] Re-enable the RPC unit test disabled in r286917. 2016-11-16 17:31:09 +00:00
utils Fix -Wunused introduced in r286945 for release builds. 2016-11-15 10:13:09 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: ignore VS Code editor files 2016-09-02 22:54:26 +00:00
CMakeLists.txt [cmake] Fix handling compiler-rt in LLVM_ENABLE_PROJECTS by turning any "-" into "_" 2016-11-09 00:23:20 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of the X86 backend. 2016-11-12 05:16:06 +00:00
configure
CREDITS.TXT Give SLP vectorizer credit where it's due. 2016-11-14 19:01:59 +00:00
LICENSE.TXT Remove autoconf references from LICENSE.TXT 2016-08-12 20:11:03 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Test commit, deleted empty line at the end of README.txt 2016-11-07 18:31:21 +00:00
RELEASE_TESTERS.TXT

README.txt 

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

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LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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If you are writing a package for LLVM, see docs/Packaging.rst for our
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