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LLVM backend for 6502
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783ccdb5c4
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Chris Lattner 783ccdb5c4 Add some simplifications for demanded bits, this allows instcombine to turn: 
define i64 @test(i64 %A, i32 %B) {
        %tmp12 = zext i32 %B to i64             ; <i64> [#uses=1]
        %tmp3 = shl i64 %tmp12, 32              ; <i64> [#uses=1]
        %tmp5 = add i64 %tmp3, %A               ; <i64> [#uses=1]
        %tmp6 = and i64 %tmp5, 123              ; <i64> [#uses=1]
        ret i64 %tmp6
}

into:

define i64 @test(i64 %A, i32 %B) {
        %tmp6 = and i64 %A, 123         ; <i64> [#uses=1]
        ret i64 %tmp6
}

This implements Transforms/InstCombine/add2.ll:test1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34919 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-05 00:02:29 +00:00
autoconf
docs Get the version number for the LLVM from the autoconf/configure.ac file 2007-03-04 00:45:50 +00:00
examples
include Unbreak VC++ build. 2007-03-05 00:00:42 +00:00
lib Add some simplifications for demanded bits, this allows instcombine to turn: 2007-03-05 00:02:29 +00:00
projects avoid collision with /usr/bin/sample if this ever gets installed. 2007-02-18 03:03:41 +00:00
runtime crtend is only for llvm-gcc3, remove it. 2007-02-23 19:34:09 +00:00
test new testcase 2007-03-05 00:01:38 +00:00
tools Unbreak VC++ build. 2007-03-05 00:00:42 +00:00
utils rename some CCActions 2007-02-28 05:29:06 +00:00
win32 Unbreak VC++ build. 2007-03-05 00:00:42 +00:00
Xcode
.cvsignore
configure
CREDITS.TXT Added myself 2007-02-27 10:44:42 +00:00
LICENSE.TXT remove these. 2007-02-25 02:28:21 +00:00
llvm.spec.in
Makefile revert r1.68. This breaks 'make install' without doing 'make' first, but 2007-02-21 06:23:20 +00:00
Makefile.common
Makefile.config.in
Makefile.rules correct dependency 2007-02-28 05:10:40 +00:00
README.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.