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Mirror of https://github.com/RPCS3/llvm-mirror
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Kyle Butt b89a2c2028 Codegen: LICM Remove check for exactly 1 register def. 
When considering whether to split an instruction with a memory operand
into an explicit load and a register-based instruction, we currently
check that the resulting instruction has exactly 1 def. This prevents 2
important LICM optimizations: compares with memory operands, and double
indirect calls. All the tests and the test-suite pass without the check.
My guess as to original intent is to limit the additional register pressure
created by the new instruction, but given that we only split out a single
register, it is already limited.

The licm-dominance test now checks actual memory loads for hoisting instead of
undef, and it tests compares.
hoist-invariant-load.ll now checks for 2 hoists, the intended hoist, and a bonus
from calling a got-relative function in a loop.

llvm-svn: 273616
2016-06-23 21:38:49 +00:00
bindings [OCaml] Add functions for accessing metadata nodes. 2016-06-22 03:30:24 +00:00
cmake Default to using the Unicode version of Win32 APIs instead of the ANSI version. This helps to catch instances where a developer accidentally forgets to explicitly specify which version of the API to use and accidentally winds up failing to support non-ASCII characters properly. 2016-06-23 19:02:09 +00:00
docs Change the email address for commit access requests to my llvm address. 2016-06-23 16:29:22 +00:00
examples [MCJIT] Update MCJIT and get the fibonacci example working again. 2016-06-11 05:47:04 +00:00
include InstCombine rule to fold trunc when value available 2016-06-23 20:22:22 +00:00
lib Codegen: LICM Remove check for exactly 1 register def. 2016-06-23 21:38:49 +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
test Codegen: LICM Remove check for exactly 1 register def. 2016-06-23 21:38:49 +00:00
tools NFC, add an "end namespace" comment for consistency 2016-06-23 16:27:08 +00:00
unittests Revert r273568 "Remangle intrinsics names when types are renamed" 2016-06-23 16:13:23 +00:00
utils [TableGen] Use StringRef::compare instead of != and <. NFC. 2016-06-23 17:09:49 +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 Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt Add support for collating profiles for use with code coverage 2016-06-13 23:33:48 +00:00
CODE_OWNERS.TXT Sort my entry in CODE_OWNERS.TXT 2016-05-26 23:10:37 +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.