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LLVM backend for 6502
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Hal Finkel 5e908e3bab Track multiple stores per object when using AA in ScheduleDAGInstrs 
When using AA to break false chain dependencies, we need to track multiple
stores per object in ScheduleDAGInstrs. Historically, we tracked potential alias
chains at the object level, and so all loads of an object would retain
dependencies on any store to that object. With AA, however, this is not
sufficient: non-overlapping stores and loads to the same object all need to be
tested for dependencies separately, we cannot only test all loads to an object
against only the last store (see PR18497 for an explicit example).

To mitigate any unwelcome compile-time impact when not using AA, only one store
is kept in the list per object when not using AA.

This, along with a stack coloring change to come shortly, will provide a test
case, fix PR18497 (and allow LLVM to compile itself using -enable-aa-sched-mi
on x86-64).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199657 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-20 14:03:02 +00:00
autoconf Use a heavier hammer when --enable-libcpp is passed to bypass the tests 2014-01-15 21:21:48 +00:00
bindings Makefile.ocaml: Tweak to use --system-libs. 2013-12-20 00:36:59 +00:00
cmake [CMake] llvm_process_sources: Introduce a parameter, ADDITIONAL_HEADERS. 2014-01-20 10:20:23 +00:00
docs Revert my commit in r199620 that added sections about namespaces to the 2014-01-20 10:15:32 +00:00
examples [cleanup] Re-sort the examples #include lines with my sort_includes 2014-01-13 09:58:03 +00:00
include [x86] Support i386-*-*-code16 triple for emitting 16-bit code 2014-01-20 12:02:25 +00:00
lib Track multiple stores per object when using AA in ScheduleDAGInstrs 2014-01-20 14:03:02 +00:00
projects Revert "Revert "Windows: Add support for unicode command lines"" 2013-10-07 01:00:07 +00:00
test [x86] Fix disassembly of MOV16ao16 et al. 2014-01-20 12:02:53 +00:00
tools [PM] Wire up the Verifier for the new pass manager and connect it to the 2014-01-20 11:34:08 +00:00
unittests [APInt] Fix nearestLogBase2 to return correct answers for very large APInt and APInt with a bitwidth of 1. 2014-01-19 20:33:48 +00:00
utils [x86] Fix disassembly of MOV16ao16 et al. 2014-01-20 12:02:53 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt [CMake] Introduce new scheme of LLVM_TOOLS_BINARY_DIR and LLVM_LIBRARY_DIR 2014-01-19 12:52:10 +00:00
CODE_OWNERS.TXT Update email address. 2013-12-04 09:42:49 +00:00
configure Use a heavier hammer when --enable-libcpp is passed to bypass the tests 2014-01-15 21:21:48 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Fix bad variable syntax in r199413 2014-01-17 00:40:39 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules [Mips]Work around MIPS linker issues exposed by commit r198087 until bug 18360 is resolved 2014-01-03 22:18:43 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

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