6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity
LLVM backend for 6502
95,063 Commits 39 Branches 0 Tags 277 MiB
C++ 48.7%
LLVM 38.5%
Assembly 10.2%
C 0.9%
Python 0.4%
Other 1.2%
8b36f9e431
Go to file
Mihai Popa 8b36f9e431 Fix Thumb2 aliasing complementary instructions taking modified immediates 
There are many Thumb instructions which take 12-bit immediates encoded in a special
8-byte value + 4-byte rotator form. Not all numbers are represented, and it's legal
to transform an assembly instruction to be able to encode the immediate.

For example: AND and BIC are complementary instructions; one can switch the AND
to a BIC as long as the immediate is complemented. 

The intent is to switch one instruction into its complementary one when the immediate
cannot be encoded in the form requested in the original assembly and when the 
complementary immediate is encodable.

The patch addresses two issues:
1. definition of t2SOImmNot immediate - it has to check that the orignal value is
not encoded naturally
2. t2AND and t2BIC instruction aliases which should use the Thumb2 SOImm operand 
rather than the ARM one.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188548 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-16 11:55:44 +00:00
autoconf Remove all checking for the various terminfo headers (term.h and 2013-08-12 10:40:11 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake Re-disabling C4291 warnings for MSVC because AttributeList.h requires it. This was accidentally removed in r187279. 2013-08-16 03:06:38 +00:00
docs Sphinx refuses to render this code block. Try adding a newline. 2013-08-14 16:18:47 +00:00
examples ExceptionDemo.cpp: Tweak a @param. [-Wdocumentation] 2013-07-29 11:03:50 +00:00
include [SystemZ] Use SRST to implement strlen and strnlen 2013-08-16 11:41:43 +00:00
lib Fix Thumb2 aliasing complementary instructions taking modified immediates 2013-08-16 11:55:44 +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 Thumb2 aliasing complementary instructions taking modified immediates 2013-08-16 11:55:44 +00:00
tools llvm-symbolizer: add support for .gnu_debuglink section 2013-08-14 17:09:30 +00:00
unittests Removing a spurious semi-colon; this macro expands into a namespace. 2013-08-16 01:53:58 +00:00
utils Fixing a warning about control reaching the end of a non-void function. 2013-08-16 01:43:31 +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 Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt CMake: polish the Windows packaging rules 2013-08-15 23:44:31 +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 Remove all checking for the various terminfo headers (term.h and 2013-08-12 10:40:11 +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 Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
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.