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LLVM backend for 6502
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944520f38c
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Lang Hames 944520f38c Add functions 'hasPredecessor' and 'hasPredecessorHelper' to SDNode. The 
hasPredecessorHelper function allows predecessors to be cached to speed up
repeated invocations. This fixes PR10186.

X.isPredecessorOf(Y) now just calls Y.hasPredecessor(X)

Y.hasPredecessor(X) calls Y.hasPredecessorHelper(X, Visited, Worklist) with
empty Visited and Worklist sets (i.e. no caching over invocations).

Y.hasPredecessorHelper(X, Visited, Worklist) caches search state in Visited
and Worklist to speed up repeated calls. The Visited set is searched for X
before going to the worklist to further search the DAG if necessary.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134592 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07 04:31:51 +00:00
autoconf Add initial *-*-rtems* target, from Joel Sherrill 2011-07-01 22:41:06 +00:00
bindings
cmake Update CMake library dependencies. 2011-06-25 02:10:19 +00:00
docs Add documenation about "branch_weight" metadata and __builtin_expect instruction 2011-07-06 18:31:02 +00:00
examples Modify comment. 2011-06-09 20:11:46 +00:00
include Add functions 'hasPredecessor' and 'hasPredecessorHelper' to SDNode. The 2011-07-07 04:31:51 +00:00
lib Add functions 'hasPredecessor' and 'hasPredecessorHelper' to SDNode. The 2011-07-07 04:31:51 +00:00
projects Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
runtime Fix build for (some versions of?) MinGW. Patch by Ruben Van Boxem. 2011-06-23 18:24:27 +00:00
test Change some ARM subtarget features to be single bit yes/no in order to sink them down to MC layer. Also fix tests. 2011-07-07 03:55:05 +00:00
tools Remove some unnecessary includes. 2011-07-06 20:48:27 +00:00
unittests Fix a subtle issue in SmallVector. The following code did not work as expected: 2011-07-06 22:36:59 +00:00
utils Add isCodeGenOnly value to the CodeGenInstruction class. 2011-07-07 00:48:02 +00:00
website
.gitignore Ignore Vim swap files 2011-05-31 21:54:28 +00:00
build-for-llvm-top.sh
CMakeLists.txt Rename profile_rt.so to libprofile_rt.so under configure+make (it already was 2011-04-29 02:12:06 +00:00
configure Add initial *-*-rtems* target, from Joel Sherrill 2011-07-01 22:41:06 +00:00
CREDITS.TXT Another git svn dcommit test. This time let's hope it doesn't kill my repo. 2010-12-10 14:45:10 +00:00
LICENSE.TXT Happy new year. 2011-06-12 15:26:54 +00:00
llvm.spec.in
Makefile Install libprofile_rt.dylib where it's more available for gcov support. 2011-06-10 21:47:14 +00:00
Makefile.common
Makefile.config.in build/configure: Add support for --with-extra-ld-options flag (to provide extra 2011-06-16 22:30:38 +00:00
Makefile.rules Rename XXXGenSubtarget.inc to XXXGenSubtargetInfo.inc for consistency. 2011-07-01 22:36:09 +00:00
ModuleInfo.txt
README.txt reverting test commit 2011-05-12 17:38:08 +00:00

README.txt 

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

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