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LLVM backend for 6502
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C++ 48.7%
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Assembly 10.2%
C 0.9%
Python 0.4%
Other 1.2%
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Chris Lattner ecfe55e65b When possible, custom lower 32-bit SINT_TO_FP to this: 
_foo2:
        extsw r2, r3
        std r2, -8(r1)
        lfd f0, -8(r1)
        fcfid f0, f0
        frsp f1, f0
        blr

instead of this:

_foo2:
        lis r2, ha16(LCPI2_0)
        lis r4, 17200
        xoris r3, r3, 32768
        stw r3, -4(r1)
        stw r4, -8(r1)
        lfs f0, lo16(LCPI2_0)(r2)
        lfd f1, -8(r1)
        fsub f0, f1, f0
        frsp f1, f0
        blr

This speeds up Misc/pi from 2.44s->2.09s with LLC and from 3.01->2.18s
with llcbeta (16.7% and 38.1% respectively).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26943 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-22 05:30:33 +00:00
autoconf Use -emit-llvm -S to get .ll file output from llvm-gcc 2006-02-27 05:39:00 +00:00
docs Document ENABLE_ASSERTIONS=1 2006-03-21 01:10:57 +00:00
examples Upgrade this to use the new intrinsic names 2006-03-03 01:31:12 +00:00
include/llvm add some nodes for extractelement 2006-03-21 20:43:08 +00:00
lib When possible, custom lower 32-bit SINT_TO_FP to this: 2006-03-22 05:30:33 +00:00
projects Convert over to the new way of handling lex/bison checked into cvs 2006-02-15 07:26:07 +00:00
runtime Optimizing to calloc() to malloc() + memset() can be bad on some platforms. 2006-03-13 21:22:43 +00:00
test Add an integer splat test 2006-03-21 18:27:27 +00:00
tools The library dependency file in flat format. This file is generated by the 2006-03-19 22:12:30 +00:00
utils Don't forget to promote xform function to an explicit node for def : Pat<> 2006-03-21 20:44:17 +00:00
win32 Put intrinsics.gen in its proper place. 2006-03-10 04:36:01 +00:00
Xcode Catch up on some of the file addition/deletions. 2006-01-27 13:24:20 +00:00
.cvsignore
configure Use -emit-llvm -S to get .ll file output from llvm-gcc 2006-02-27 05:39:00 +00:00
CREDITS.TXT Add an entry 2006-01-08 08:25:38 +00:00
LICENSE.TXT
llvm.spec
llvm.spec.in
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Enable assertions to be enabled in release builds by building with 2006-03-21 01:06:41 +00:00
README.txt

README.txt 

Low Level Virtual Machine (LLVM)
================================

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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
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Please see the HTML documentation provided in docs/index.html for further
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