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Fork of llvm with experimental commits and workarounds for RPCS3
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Wenlei He c7934c2798 [LICM] Make Loop ICM profile aware again 
D65060 was reverted because it introduced non-determinism by using BFI counts from already freed blocks. The parent of this revision fixes that by using a VH callback on blocks to prevent this from happening and makes sure BFI data is passed correctly in LoopStandardAnalysisResults.

This re-introduces the previous optimization of using BFI data to prevent LICM from hoisting/sinking if the instruction will end up moving to a colder block.

Internally at Facebook this change results in a ~7% win in a CPU related metric in one of our big services by preventing hoisting cold code into a hot pre-header like the added test case demonstrates.

Testing:
ninja check

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D87551
2020-09-15 17:21:58 -07:00
benchmarks
bindings [OCaml] Remove add_constant_propagation 2020-08-27 09:30:21 -07:00
cmake [MinGW] Use lib prefix for libraries 2020-09-12 22:01:29 +03:00
docs [doc] Fix broken link 2020-09-15 09:58:08 +02:00
examples Re-apply "[ORC] Make MaterializationResponsibility immovable..." with fixes. 2020-09-11 14:09:05 -07:00
include [LICM] Make Loop ICM profile aware again 2020-09-15 17:21:58 -07:00
lib [LICM] Make Loop ICM profile aware again 2020-09-15 17:21:58 -07:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources
runtimes [runtimes] Remove TOOLCHAIN_TOOLS specialization 2020-08-24 13:48:29 -07:00
test [LICM] Make Loop ICM profile aware again 2020-09-15 17:21:58 -07:00
tools [Bugpoint][NewPM] Pin bugpoint to legacy PM 2020-09-15 11:29:10 -07:00
unittests [CGSCC][NewPM] Fix adding mutually recursive new functions 2020-09-15 16:44:08 -07:00
utils [TableGen] Fix invalid comparison function SizeOrder in getMatchingSubClassWithSubRegs 2020-09-15 15:48:43 -04:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore [clangd] Store index in '.cache/clangd/index' instead of '.clangd/index' 2020-07-07 14:53:45 +02:00
CMakeLists.txt [llvm][cmake] Change LLVM_INTEGRATED_CRT_ALLOC to a path instead of a boolean 2020-09-15 19:18:52 -04:00
CODE_OWNERS.TXT Update PowerPC backend ownership in CODE_OWNERS.TXT 2020-09-14 15:45:57 -05:00
configure
CREDITS.TXT Update my email address. 2020-08-21 10:15:26 -07:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

The LLVM Compiler Infrastructure
================================

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.