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LLVM backend for 6502
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Benjamin Kramer 7159a307b9 InstCombine: Don't claim to be able to evaluate any shl in a zexted type. 
The shift amount may be larger than the type leading to undefined behavior.
Limit the transform to constant shift amounts. While there update the bits to
clear in the result which may enable additional optimizations.

PR15959.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181604 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-10 16:26:37 +00:00
autoconf We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake [SystemZ] Add configure bits 2013-05-06 16:22:34 +00:00
docs Add SystemZ feats to CodeGenerator.rst 2013-05-08 14:23:43 +00:00
examples Remove exception handling support from the old JIT. 2013-05-07 20:53:59 +00:00
include Documentation warning: \param, not \parm 2013-05-09 21:15:03 +00:00
lib InstCombine: Don't claim to be able to evaluate any shl in a zexted type. 2013-05-10 16:26:37 +00:00
projects [SystemZ] Add to --enable-targets=all 2013-05-06 16:23:07 +00:00
runtime Remove GCDAProfiling.c. This copy is old, the copy in compiler-rt is newer and 2013-03-07 02:03:08 +00:00
test InstCombine: Don't claim to be able to evaluate any shl in a zexted type. 2013-05-10 16:26:37 +00:00
tools Introduce convenience typedefs for the 4 ELF object types. 2013-05-09 13:13:28 +00:00
unittests Remove exception handling support from the old JIT. 2013-05-07 20:53:59 +00:00
utils Add libcxx and clang-tools-extra to the testing thing. 2013-05-08 09:31:10 +00:00
.arcconfig
.gitignore
CMakeLists.txt Change version to 3.4 in the cmake build too. 2013-05-07 20:44:22 +00:00
CODE_OWNERS.TXT Add myself as SystemZ code owner 2013-05-08 14:41:29 +00:00
configure We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
CREDITS.TXT Test commit. 2013-05-09 12:32:36 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile Improved svn repo searching for 'make update' 2013-01-28 03:19:57 +00:00
Makefile.common
Makefile.config.in Add basic zlib support to LLVM. This would allow to use compression/uncompression in selected LLVM tools. 2013-04-23 08:28:39 +00:00
Makefile.rules Remove this hack. We can support this better with function attributes. 2013-05-03 21:53:50 +00:00
README.txt test 2013-04-17 05:34:03 +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 documentation provided in docs/ for further
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started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.