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LLVM backend for 6502
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4d8414f420
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Dan Gohman 4d8414f420 Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical 
induction variable when the addrec to be expanded does not require
a wider type. This eliminates the need for IndVarSimplify to
micro-manage SCEV expansions, because SCEVExpander now
automatically expands them in the form that IndVarSimplify considers
to be canonical. (LSR still micro-manages its SCEV expansions,
because it's optimizing for the target, rather than for
other optimizations.)

Also, this uses the new getAnyExtendExpr, which has more clever
expression simplification logic than the IndVarSimplify code it
replaces, and this cleans up some ugly expansions in code such as
the included masked-iv.ll testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73294 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-13 16:25:49 +00:00
autoconf Add a flag to permit disabling libffi. 2009-06-06 06:24:44 +00:00
bindings Give embedded metadata its own type instead of relying on EmptyStructTy. 2009-05-30 05:06:04 +00:00
cmake CMake: New variable LLVM_LIBDIR_SUFFIX. 2009-06-12 02:49:53 +00:00
docs Document noredzone and noimplicitfloat function attributes. 2009-06-12 19:45:19 +00:00
examples silence a warning. 2009-04-15 00:16:05 +00:00
include Add a ScalarEvolution::getAnyExtendExpr utility function for performing 2009-06-13 15:56:47 +00:00
lib Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical 2009-06-13 16:25:49 +00:00
projects Revert r67655 and r67656, as they are breaking the build. I'm 2009-03-25 00:52:11 +00:00
runtime Drop toy GC runtime. 2009-03-02 03:46:48 +00:00
test Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical 2009-06-13 16:25:49 +00:00
tools Bug fix: 2009-06-09 21:14:25 +00:00
unittests Reversed order of args in EXPECT_EQ() macros to be in the correct order: 2009-06-09 21:48:57 +00:00
utils Tweak GenLibDeps.pl so it works on solaris. 2009-06-12 14:23:42 +00:00
website
win32 Add a new codegen pass that normalizes dwarf exception handling 2009-05-22 20:36:31 +00:00
Xcode
build-for-llvm-top.sh Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
CMakeLists.txt CMake: New variable LLVM_LIBDIR_SUFFIX. 2009-06-12 02:49:53 +00:00
configure Regenerate. 2009-06-06 06:25:09 +00:00
CREDITS.TXT Waste time fixing something that should have been fixed before. 2009-06-12 18:02:40 +00:00
LICENSE.TXT Now that we have atomics support properly detected by configure, 2009-05-19 00:08:29 +00:00
llvm.spec.in
Makefile Change 'make install' to install tblgen, for better support of out-of-tree targets, 2009-05-08 17:32:47 +00:00
Makefile.common Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
Makefile.config.in Add a --enable-profiling option to configure to build Debug+Profile and 2009-04-17 14:49:22 +00:00
Makefile.rules On platforms like Sparc64 you need to pass -r to 2009-06-05 15:05:19 +00:00
ModuleInfo.txt Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
README.txt README.txt: test commit w/blank line appended 2009-03-23 21:00:45 +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.