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LLVM backend for 6502
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a0715579f0
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Hal Finkel a0715579f0 [BasicAA] Make better use of zext and sign information 
Two related things:

 1. Fixes a bug when calculating the offset in GetLinearExpression. The code
    previously used zext to extend the offset, so negative offsets were converted
    to large positive ones.

 2. Enhance aliasGEP to deduce that, if the difference between two GEP
    allocations is positive and all the variables that govern the offset are also
    positive (i.e. the offset is strictly after the higher base pointer), then
    locations that fit in the gap between the two base pointers are NoAlias.

Patch by Nick White!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218714 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-30 22:43:40 +00:00
autoconf
bindings
cmake Add LLVM_ENABLE_MODULES flag to CMake to enable building with C++ modules. 2014-09-26 22:40:15 +00:00
docs fix a typo in doumentation index. 2014-09-26 06:59:15 +00:00
examples Add doInitialization/doFinalization to DataLayoutPass. 2014-09-10 21:27:43 +00:00
include [SimplifyCFG] threshold for folding branches with common destination 2014-09-30 22:23:38 +00:00
lib [BasicAA] Make better use of zext and sign information 2014-09-30 22:43:40 +00:00
projects
test [BasicAA] Make better use of zext and sign information 2014-09-30 22:43:40 +00:00
tools MSBuild integration: fix the loop in install.bat 2014-09-30 22:30:06 +00:00
unittests WinCOFFObjectWriter: optimize the string table for common suffices 2014-09-29 22:43:20 +00:00
utils [AVX512] Added intrinsics for VPCMPEQB and VPCMPEQW. 2014-09-30 11:32:22 +00:00
.arcconfig
.clang-format
.clang-tidy Add .clang-tidy configuration file to provide LLVM-optimized defaults for 2014-09-08 13:30:00 +00:00
.gitignore
CMakeLists.txt Add LLVM_ENABLE_MODULES flag to CMake to enable building with C++ modules. 2014-09-26 22:40:15 +00:00
CODE_OWNERS.TXT Add Tom Stellard's role as 3.5 release manager. 2014-09-12 08:07:31 +00:00
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Revert my earlier change to add "all" as a dependency to check. In 2014-09-19 18:44:27 +00:00
README.txt

README.txt 

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