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15e85ff776
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Adam Nemet 15e85ff776 [BFI] Add new LazyBFI analysis pass 
Summary:
This is necessary for D21771.  In order to add the hotness attribute to
optimization remarks we need BFI to be available in all passes that emit
optimization remarks.

However we don't want to pay for computing BFI unless the hotness
attribute is requested.

This is achieved by making BFI lazy at the very high-level through a new
analysis pass -- BFI is not calculated unless requested.

I am adding a test to check the laziness under D21771 where the first
user of the analysis is added.

Reviewers: hfinkel, dexonsmith, davidxl

Subscribers: davidxl, dexonsmith, llvm-commits

Differential Revision: http://reviews.llvm.org/D22141

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275250 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-13 05:01:48 +00:00
bindings [OCaml] Add functions for accessing metadata nodes. 2016-06-22 03:30:24 +00:00
cmake [cmake] Create the LLVM_BUILD_UTILS option. 2016-07-10 02:43:47 +00:00
docs Review fixes to lit documentation 2016-07-12 20:59:17 +00:00
examples New Kaleidoscope chapter: Creating object files 2016-07-02 17:01:59 +00:00
include [BFI] Add new LazyBFI analysis pass 2016-07-13 05:01:48 +00:00
lib [BFI] Add new LazyBFI analysis pass 2016-07-13 05:01:48 +00:00
projects Remove autoconf support 2016-01-26 21:29:08 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake] Add LLVM runtimes directory 2016-06-23 22:07:21 +00:00
test [BFI] Add new LazyBFI analysis pass 2016-07-13 05:01:48 +00:00
tools [ThinLTO/gold] ThinLTO internalization fixes 2016-07-13 03:42:41 +00:00
unittests [llvm-pdbdump] Propagate errors a little more consistently 2016-07-10 03:34:47 +00:00
utils vim: separate the keywords into one per line 2016-07-13 03:47:58 +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 [CMake] Add LLVM runtimes directory 2016-06-23 22:07:21 +00:00
CMakeLists.txt [cmake] Create the LLVM_BUILD_UTILS option. 2016-07-10 02:43:47 +00:00
CODE_OWNERS.TXT Transfer ownership of the gold plugin. 2016-07-05 20:49:50 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
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 [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Revert previous test commit. 2016-01-04 19:13:29 +00:00

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.