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LLVM backend for 6502
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7c3234c6be
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Dan Gohman 7c3234c6be Reorganize the lifetimes of the major objects SelectionDAGISel 
works with.

SelectionDAG, FunctionLoweringInfo, and SelectionDAGLowering
objects now get created once per SelectionDAGISel instance, and
can be reused across blocks and across functions. Previously,
they were created and destroyed each time they were needed.

This reorganization simplifies the handling of PHI nodes, and
also SwitchCases, JumpTables, and BitTestBlocks. This
simplification has the side effect of fixing a bug in FastISel
where successor PHI nodes weren't being updated correctly.

This is also a step towards making the transition from FastISel
into and out of SelectionDAG faster, and also making
plain SelectionDAG faster on code with lots of little blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55450 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 23:52:12 +00:00
autoconf Set the executable bit - means it can actually 2008-07-29 18:31:42 +00:00
bindings Rename some GC classes so that their roll will hopefully be clearer. 2008-08-17 18:44:35 +00:00
docs Update GC docs for clarified naming and AsmWriter refactoring. 2008-08-24 03:18:23 +00:00
examples Switch the asmprinter (.ll) and all the stuff it requires over to 2008-08-23 22:23:09 +00:00
include Reorganize the lifetimes of the major objects SelectionDAGISel 2008-08-27 23:52:12 +00:00
lib Reorganize the lifetimes of the major objects SelectionDAGISel 2008-08-27 23:52:12 +00:00
projects Allow the test suite to be checked out into projects/test-suite. 2008-06-24 13:01:57 +00:00
runtime Fixing the stack walker. 2008-01-24 05:16:36 +00:00
test Diagnose uses of unsized types with the byval attribute in the 2008-08-27 14:48:06 +00:00
tools Backout 55429 2008-08-27 20:51:49 +00:00
utils Update a comment to reflect recent changes. 2008-08-27 16:18:22 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 Use additionnal include directory instead of ../ in #include. 2008-08-24 12:30:46 +00:00
Xcode Merge LLVMBuilder and FoldingBuilder, calling 2008-04-13 06:22:09 +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 Make LLVM compile on DragonFly BSD (PR2499). 2008-06-26 10:36:58 +00:00
CREDITS.TXT Update. Remove bogus webpage. 2008-08-12 21:55:54 +00:00
LICENSE.TXT llvmc doesn't exist anymore, and llvmc2 doesn't have a special license file. 2008-06-20 20:05:57 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile For PR1338: rename include/llvm/ADT/ilist and friends to end with ".h" 2008-05-29 17:41:17 +00:00
Makefile.common remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
Makefile.config.in Reverting r48974. See PR2183 for details. 2008-03-31 16:46:23 +00:00
Makefile.rules Initial checkin of the new "fast" instruction selection support. See 2008-08-13 20:19:35 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +00:00
README.txt Remove extra lines 2008-07-28 20:50:25 +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.