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LLVM backend for 6502
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5057f38141
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Duncan Sands 5057f38141 Exploit distributive laws (eg: And distributes over Or, Mul over Add, etc) in a 
fairly systematic way in instcombine.  Some of these cases were already dealt
with, in which case I removed the existing code.  The case of Add has a bunch of
funky logic which covers some of this plus a few variants (considers shifts to be
a form of multiplication), which I didn't touch.  The simplification performed is:
A*B+A*C -> A*(B+C).  The improvement is to do this in cases that were not already
handled [such as A*B-A*C -> A*(B-C), which was reported on the mailing list], and
also to do it more often by not checking for "only one use" if "B+C" simplifies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120024 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23 14:23:47 +00:00
autoconf fix the autoconf script to detect "has asmprinter"ness of a target by 2010-11-14 19:10:47 +00:00
bindings
cmake Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests. 2010-11-21 22:06:28 +00:00
docs Fix formatting nits in the coding standards. Reviewed by clattner. 2010-11-23 05:03:07 +00:00
examples Fix missing includes of "llvm/Analysis/Passes.h" in the tutorials. Thanks 2010-11-16 17:28:22 +00:00
include Expand a little on the description of what InstructionSimplify does. 2010-11-23 10:50:08 +00:00
lib Exploit distributive laws (eg: And distributes over Or, Mul over Add, etc) in a 2010-11-23 14:23:47 +00:00
projects
runtime
test Exploit distributive laws (eg: And distributes over Or, Mul over Add, etc) in a 2010-11-23 14:23:47 +00:00
tools Add a newline. 2010-11-22 17:10:20 +00:00
unittests reimplement SwapByteOrder.h in terms of overloading instead of 2010-11-23 04:04:25 +00:00
utils lit.GoogleTest: On case-insensitive filesystem, matching should be case-insensitive when directory name is checked with test_sub_dir. 2010-11-19 03:19:26 +00:00
website
build-for-llvm-top.sh
CMakeLists.txt Disable warning C4291 on MSVC. Caused because class AttributeList provides a non implemented operator delete without a corresponding new. 2010-11-20 15:39:03 +00:00
configure fix the autoconf script to detect "has asmprinter"ness of a target by 2010-11-14 19:10:47 +00:00
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