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LLVM backend for 6502
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86e1ebf9bb
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Dan Gohman 86e1ebf9bb Avoid creating chain dependencies from CopyToReg nodes to load and store 
nodes. This doesn't currently have much impact the generated code, but it
does produce simpler-looking SelectionDAGs, and consequently
simpler-looking ScheduleDAGs, because there are fewer spurious
dependencies.

In particular, CopyValueToVirtualRegister now uses the entry node as the
input chain dependency for new CopyToReg nodes instead of calling getRoot
and depending on the most recent memory reference.

Also, rename UnorderedChains to PendingExports and pull it up from being
a local variable in SelectionDAGISel::BuildSelectionDAG to being a
member variable of SelectionDAGISel, so that it doesn't have to be
passed around to all the places that need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48893 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 19:56:19 +00:00
autoconf Adding ocamldoc generation. 2008-03-10 15:49:16 +00:00
bindings Expose ExecutionEngine::getTargetData() to c and ocaml bindings. 2008-03-27 00:27:14 +00:00
docs Adding the first two chapters of the ocaml/kaleidoscope tutorial. 2008-03-27 08:18:07 +00:00
examples Fix an incorrect comment, PR2147. 2008-03-13 03:29:42 +00:00
include Avoid creating chain dependencies from CopyToReg nodes to load and store 2008-03-27 19:56:19 +00:00
lib Avoid creating chain dependencies from CopyToReg nodes to load and store 2008-03-27 19:56:19 +00:00
projects remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
runtime Fixing the stack walker. 2008-01-24 05:16:36 +00:00
test add another testcase 2008-03-27 17:13:55 +00:00
tools Another test commit (with git-svn) 2008-03-26 21:37:43 +00:00
utils Fix build breakage on Windows with GCC 4.3. References bug #2176. 2008-03-27 09:53:47 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 Updating win32 VStudio project files with new file references and removing dead references. 2008-03-27 00:02:53 +00:00
Xcode Update project to reflect deleted files. 2008-03-23 16:49:47 +00:00
build-for-llvm-top.sh Allow the configure options to be set according to the llvm-top options. 2007-08-31 19:53:42 +00:00
configure Regenerate. 2008-03-10 15:49:38 +00:00
CREDITS.TXT Add Mikhail to credits file 2008-03-23 08:58:32 +00:00
LICENSE.TXT scoped_ptr.h was removed. 2008-02-09 22:50:06 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile a happier version of happiness 2008-03-21 22:17:07 +00:00
Makefile.common remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
Makefile.config.in Adding ocamldoc generation. 2008-03-10 15:49:16 +00:00
Makefile.rules Refresh Makefile.ocaml in objdir if it is modified in srcdir. 2008-03-10 15:58:40 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +00:00
README.txt test 2007-04-20 20:49:25 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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Please see the HTML documentation provided in docs/index.html for further
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