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LLVM backend for 6502
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07d9471bc5
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Renato Golin 07d9471bc5 Add #pragma vectorize enable/disable to LLVM 
The intended behaviour is to force vectorization on the presence
of the flag (either turn on or off), and to continue the behaviour
as expected in its absence. Tests were added to make sure the all
cases are covered in opt. No tests were added in other tools with
the assumption that they should use the PassManagerBuilder in the
same way.

This patch also removes the outdated -late-vectorize flag, which was
on by default and not helping much.

The pragma metadata is being attached to the same place as other loop
metadata, but nothing forbids one from attaching it to a function
(to enable #pragma optimize) or basic blocks (to hint the basic-block
vectorizers), etc. The logic should be the same all around.

Patches to Clang to produce the metadata will be produced after the
initial implementation is agreed upon and committed. Patches to other
vectorizers (such as SLP and BB) will be added once we're happy with
the pass manager changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196537 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-05 21:20:02 +00:00
autoconf Update to reflect the next release. 2013-11-20 10:10:50 +00:00
bindings [OCaml] Add a slash accidentally omitted from Makefile 2013-11-28 09:03:28 +00:00
cmake [CMake] add_lit_target: Let lit.site.cfg free from "--param build_mode" on single configuration builds, like autoconf build. 2013-12-04 11:15:17 +00:00
docs Document that dllexported symbols are preserved by optimization passes. 2013-12-05 18:37:54 +00:00
examples [weak vtables] Place class definitions into anonymous namespaces to prevent weak vtables. 2013-11-19 03:08:35 +00:00
include Add #pragma vectorize enable/disable to LLVM 2013-12-05 21:20:02 +00:00
lib Add #pragma vectorize enable/disable to LLVM 2013-12-05 21:20:02 +00:00
projects
test Add #pragma vectorize enable/disable to LLVM 2013-12-05 21:20:02 +00:00
tools Add #pragma vectorize enable/disable to LLVM 2013-12-05 21:20:02 +00:00
unittests Use present fast-math flags when applicable in CreateBinOp 2013-12-05 00:32:09 +00:00
utils Correct word hyphenations 2013-12-05 05:44:44 +00:00
.arcconfig
.clang-format
.gitignore
CMakeLists.txt CMake : optionaly enable LLVM to be compiled with -std=c++11 (default: off) 2013-11-26 10:33:53 +00:00
CODE_OWNERS.TXT Update email address. 2013-12-04 09:42:49 +00:00
configure Update to reflect the next release. 2013-11-20 10:10:50 +00:00
CREDITS.TXT
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile
Makefile.common
Makefile.config.in
Makefile.rules
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, 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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.