LLVM backend for 6502
Go to file
Jakob Stoklund Olesen 2d6d86be84 Split around single instructions to enable register class inflation.
Normally, we don't create a live range for a single instruction in a
basic block, the spiller does that anyway. However, when splitting a
live range that belongs to a proper register sub-class, inserting these
extra COPY instructions completely remove the constraints from the
remainder interval, and it may be allocated from the larger super-class.

The spiller will mop up these small live ranges if we end up spilling
anyway. It calls them snippets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-05 22:20:45 +00:00
autoconf Update the default bug report url in autoconf. 2011-08-02 20:53:43 +00:00
bindings Remove InvalidateStructLayoutInfo from the ocaml bindings. 2011-07-31 01:12:39 +00:00
cmake Remove yet another buried and hidden implicit dependency: every single 2011-07-30 08:47:05 +00:00
docs Reword. 2011-08-04 10:43:43 +00:00
examples
include Temporarily revert r135528 which distinguishes between two copies of one 2011-08-05 00:51:31 +00:00
lib Split around single instructions to enable register class inflation. 2011-08-05 22:20:45 +00:00
projects
runtime Use version 402 for the GCDA files when compiling for Apple. 2011-07-28 18:12:20 +00:00
test ARM load instruction shifted register index operands. 2011-08-05 22:03:36 +00:00
tools Remove the LowerSetJmp pass. It wasn't used effectively by any of the targets. 2011-08-03 22:18:20 +00:00
unittests Avoid undefined behaviour if somehow NUM_GRAPHS equals 2^32 (or 2011-07-29 07:50:02 +00:00
utils LDCL_POST and STCL_POST need one's-complement offsets, rather than two's complement offsets. Add an appropriate immediate type for them. 2011-08-04 18:24:14 +00:00
website
.gitignore
build-for-llvm-top.sh
CMakeLists.txt
configure
CREDITS.TXT I am the code owner for Clang's IR generation; this has been true 2011-08-02 01:38:19 +00:00
LICENSE.TXT
llvm.spec.in
Makefile
Makefile.common
Makefile.config.in
Makefile.rules
ModuleInfo.txt
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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.