LLVM backend for 6502
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Christopher Lamb 7a0678cae6 Fold subtracts into integer compares vs. zero. This improves generate code for this case on X86
from
_foo:
        movl    $99, %ecx
        movl    4(%esp), %eax
        subl    %eax, %ecx
        xorl    %edx, %edx
        testl   %ecx, %ecx
        cmovs   %edx, %eax
        ret

to
_foo:
        xorl    %ecx, %ecx
        movl    4(%esp), %eax
        cmpl    $99, %eax
        cmovg   %ecx, %eax
        ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45173 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-18 21:32:20 +00:00
autoconf Apply CBE/MSIL patch to autoconf 2007-12-13 02:24:45 +00:00
bindings C and Ocaml bindings for address spaces, for that burgeoning market 2007-12-17 16:08:32 +00:00
docs avoid confusing terminology (what is a "word"?), fix scary markup, add section to TOC. 2007-12-18 06:18:21 +00:00
examples Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space. 2007-12-17 01:12:55 +00:00
include Added "isDirectory" method to llvm::sys::Path. 2007-12-18 19:46:22 +00:00
lib Fold subtracts into integer compares vs. zero. This improves generate code for this case on X86 2007-12-18 21:32:20 +00:00
projects
runtime GarbageCollection.html is expanded to encompass the coming 2007-09-27 19:31:36 +00:00
test Remove an orthogonal transformation of the selection condition from my most recent submission. 2007-12-18 20:30:28 +00:00
tools regenerate. 2007-12-17 01:17:35 +00:00
utils Ignore shell scripts when doing "dsymutil" call. 2007-12-18 19:21:52 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 Add StringPool + new CodeGen files to win32 build 2007-12-10 19:31:09 +00:00
Xcode Add MachineLICM.cpp 2007-12-17 21:14:45 +00:00
build-for-llvm-top.sh Allow the configure options to be set according to the llvm-top options. 2007-08-31 19:53:42 +00:00
configure Do not build CBackend and MSIL regardless of configured targets 2007-12-13 01:18:52 +00:00
CREDITS.TXT Update credits. 2007-12-11 09:32:07 +00:00
LICENSE.TXT Updated source file headers to llvm coding standard. 2007-12-05 01:40:25 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile Add install-libs target which only installs libraries, not tools 2007-12-13 02:17:17 +00:00
Makefile.common
Makefile.config.in Providing --with-ocaml-libdir for ./configure. The default is the 2007-10-02 16:42:10 +00:00
Makefile.rules noone uses etags. Connected to PR1601 2007-09-26 06:10:47 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +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 HTML documentation provided in docs/index.html for further
assistance with LLVM.