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LLVM backend for 6502
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73a1b67cb9
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Bob Wilson 73a1b67cb9 Revise scalar replacement to be more flexible about handle bitcasts and GEPs. 
While scanning through the uses of an alloca, keep track of the current offset
relative to the start of the alloca, and check memory references to see if
the offset & size correspond to a component within the alloca.  This has the
nice benefit of unifying much of the code from isSafeUseOfAllocation,
isSafeElementUse, and isSafeUseOfBitCastedAllocation.  The code to rewrite
the uses of a promoted alloca, after it is determined to be safe, is
reorganized in the same way.

Also, when rewriting GEP instructions, mark them as "in-bounds" since all the
indices are known to be safe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11 23:47:40 +00:00
autoconf Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
bindings Expose the rest of the attribute settings. 2009-09-28 04:42:47 +00:00
cmake CheckAtomic.cmake: Put all C++ code inside CHECK_CXX_SOURCE_COMPILES. 2009-12-06 00:06:33 +00:00
docs Add note about loadable modules on windows. 2009-12-09 17:26:02 +00:00
examples fix PR5649 by making fib use the JIT instead of the interpreter, patch by Perry Lorier! 2009-12-01 01:56:27 +00:00
include Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG. 2009-12-11 21:31:27 +00:00
lib Revise scalar replacement to be more flexible about handle bitcasts and GEPs. 2009-12-11 23:47:40 +00:00
projects Move DataTypes.h to include/llvm/System, update all users. This breaks the last 2009-10-26 01:35:46 +00:00
runtime OptimalEdgeProfiling: Creation of profiles. 2009-09-01 19:03:44 +00:00
test Revise scalar replacement to be more flexible about handle bitcasts and GEPs. 2009-12-11 23:47:40 +00:00
tools when opt crashes, print its command line arguments as a pretty stack trace. 2009-12-09 00:41:28 +00:00
unittests Add an implementation of the delta debugging algorithm. 2009-12-03 11:12:42 +00:00
utils Remove unneeded ';' and a class/struct mismatch (noticed by clang). 2009-12-09 02:58:09 +00:00
website
Xcode
build-for-llvm-top.sh
CMakeLists.txt Don't default warnings to ON on MSVC, the spew is enough to triple the build time. :/ 2009-12-01 19:11:36 +00:00
configure Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
CREDITS.TXT Add myself to the blame list. 2009-08-20 15:20:15 +00:00
LICENSE.TXT Add regular expression matching support, based on OpenBSD regexec()/regcomp() 2009-08-30 08:24:09 +00:00
llvm.spec.in
Makefile Add the rest of the build system logic for optional target disassemblers 2009-11-25 04:46:58 +00:00
Makefile.common
Makefile.config.in Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
Makefile.rules Add the rest of the build system logic for optional target disassemblers 2009-11-25 04:46:58 +00:00
ModuleInfo.txt
README.txt First test commit 2009-10-05 22:29:11 +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.