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Old fork of llvm-mirror, used on older RPCS3 builds
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e921f32353
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Mihai Popa e921f32353 Fix assembling of Thumb2 branch instructions. 
The long encoding for Thumb2 unconditional branches is broken.
Additionally, there is no range checking for target operands; as such 
for instructions originating in assembly code, only short Thumb encodings
are generated, regardless of the bitsize needed for the offset.

Adding range checking is non trivial due to the representation of Thumb
branch instructions. There is no true difference between conditional and
unconditional branches in terms of operands and syntax - even unconditional
branches have a predicate which is expected to match that of the IT block
they are in. Yet, the encodings and the permitted size of the offset differ.

Due to this, for any mnemonic there are really 4 encodings to choose for.

The problem cannot be handled in the parser alone or by manipulating td files.
Because the parser builds first a set of match candidates and then checks them
one by one, whatever tablegen-only solution might be found will ultimately be
dependent of the parser's evaluation order. What's worse is that due to the fact
that all branches have the same syntax and the same kinds of operands, that 
order is governed by the lexicographical ordering of the names of operand 
classes...

To circumvent all this, any necessary disambiguation is added to the instruction
validation pass.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188067 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-09 10:38:32 +00:00
autoconf Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake Add three missing CMake variables that need to make it to the 2013-08-08 01:15:37 +00:00
docs [lit] Change --show-{tests,suites} to exit after printing. 2013-08-08 20:59:25 +00:00
examples ExceptionDemo.cpp: Tweak a @param. [-Wdocumentation] 2013-07-29 11:03:50 +00:00
include Try to unbreak Windows build after r188022 2013-08-09 07:34:06 +00:00
lib Fix assembling of Thumb2 branch instructions. 2013-08-09 10:38:32 +00:00
projects Build with the $RDYNAMIC flag on Darwin as well as other platforms. 2013-08-04 22:06:11 +00:00
runtime Use @rpath for libraries rather than @executable_path on OSX. 2013-08-02 01:51:52 +00:00
test Fix assembling of Thumb2 branch instructions. 2013-08-09 10:38:32 +00:00
tools Remove byte order mark from source file. 2013-08-09 10:31:14 +00:00
unittests Fix off-by-one error in Regex::isValid 2013-08-08 17:32:45 +00:00
utils [lit] Rename lit.{TestFormats,Util} to their aliased names {formats,util}. 2013-08-09 00:37:15 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.gitignore
CMakeLists.txt Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
CODE_OWNERS.TXT Add more owners to CODE_OWNERS.TXT (Kostya Serebryany: AddressSanitizer and ThreadSanitizer; Evgeniy Stepanov: MemorySanitizer) 2013-06-27 08:47:12 +00:00
configure Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
CREDITS.TXT Identify me on IRC. 2013-06-18 22:09:36 +00:00
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile Fix regular expression used by 'make update' to only look for 'I' and '?' at the start of svn info results and to check for spaces after 'I' instead of just after '?'. 2013-07-03 14:48:37 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules Remove oddly named libraries with "make uninstall-local" 2013-08-06 12:50:45 +00:00
README.txt test 2013-04-17 05:34:03 +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.