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96 Commits

Author SHA1 Message Date
Owen Anderson
f064c92298 Tabs -> Spaces 
llvm-svn: 36094
 2007-04-15 23:14:18 +00:00
Owen Anderson
f35a1dbc7a Remove ImmediateDominator analysis. The same information can be obtained from DomTree. A lot of code for 
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.

llvm-svn: 36063
 2007-04-15 08:47:27 +00:00
Owen Anderson
e59b36defa Fix some unsafe code. Also, tabs -> spaces. 
llvm-svn: 36035
 2007-04-14 23:57:00 +00:00
Owen Anderson
78cecc817f Make ETForest depend on DomTree rather than IDom. This is the first step 
in the long process that will be fixing PR 217.

llvm-svn: 36034
 2007-04-14 23:49:24 +00:00
Chris Lattner
d112a031ea Convert ImmediateDominators::DFSPass from being recursive to being iterative. 
llvm-svn: 35815
 2007-04-09 06:44:42 +00:00
Chris Lattner
0a5677d912 minor cleanups 
llvm-svn: 35807
 2007-04-09 06:10:06 +00:00
Owen Anderson
6978893a8f Move isReachableFromEntry out of line to avoid an unnecessary #include 
llvm-svn: 35797
 2007-04-09 04:07:36 +00:00
Owen Anderson
fe507270ac Remove DomSet completely. This concludes work on PR1171. 
llvm-svn: 35775
 2007-04-08 21:30:05 +00:00
Nick Lewycky
73ffedb592 Don't crash when encountering a BasicBlock that hasn't been registered yet. 
llvm-svn: 35756
 2007-04-08 01:02:12 +00:00
Owen Anderson
f7ebea1b9f Add DomSet back, and revert the changes to LoopSimplify. Apparently the 
ETForest updating mechanisms don't work as I thought they did.  These changes
will be reapplied once the issue is worked out.

llvm-svn: 35741
 2007-04-07 18:23:27 +00:00
Owen Anderson
8763ba1b88 Completely purge DomSet. This is the (hopefully) final patch for PR1171. 
llvm-svn: 35731
 2007-04-07 07:17:27 +00:00
Devang Patel
0b013d578d It is not possible to determine dominance between two PHI nodes 
based on their ordering. This is applicable to ETForest::dominates() also.

llvm-svn: 35423
 2007-03-28 14:57:43 +00:00
Devang Patel
5a1bd4045d Use SmallPtrSet. 
llvm-svn: 35388
 2007-03-27 20:50:46 +00:00
Devang Patel
2850c677af Spell check. 
llvm-svn: 35374
 2007-03-27 00:16:08 +00:00
Devang Patel
bea581d70c It is not possible to determie dominance between two PHI nodes 
based on their ordering.

llvm-svn: 35369
 2007-03-26 23:18:28 +00:00
Devang Patel
55566a972c Use std::vector<DFCalculateWorkObject> instead of 
std::vector<DFCalculateWorkObject *> to reduce malloc/free traffic.

llvm-svn: 35368
 2007-03-26 23:17:19 +00:00
Devang Patel
eb5d241d00 DominanceFrontier::calculate(). 
Avoid recursion, Use iterative algorithm.

llvm-svn: 35225
 2007-03-20 21:25:31 +00:00
Devang Patel
1758cb50de LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35221
 2007-03-20 20:18:12 +00:00
Bill Wendling
6a462f1e99 Removed iostream #includes. Replaced std::cerr with DOUT. 
llvm-svn: 31814
 2006-11-17 08:03:48 +00:00
Devang Patel
81c9e42bea remove extra white spaces. 
llvm-svn: 30576
 2006-09-22 01:07:57 +00:00
Devang Patel
0c4e730c9c Use iterative algorith to assign DFS number. This reduces 
call stack depth.

llvm-svn: 30575
 2006-09-22 01:05:33 +00:00
Devang Patel
9ce9df5912 Undo previous check-in. 
Reintroduce recursive assignDFSNumber().

llvm-svn: 30380
 2006-09-14 21:43:24 +00:00
Devang Patel
23d855b40d Avoid recursion in assignDFSNumber(). Move def from ET-Forest.h 
to Dominators.h

llvm-svn: 30309
 2006-09-14 01:27:42 +00:00
Chris Lattner
3c9b2420df Eliminate RegisterAnalysis. RegisterPass now does all that is necessary. 
llvm-svn: 29921
 2006-08-27 22:30:17 +00:00
Chris Lattner
38e1a09d4d Add dominates/properlyDominates queries to IDom. 
llvm-svn: 29456
 2006-08-01 22:24:47 +00:00
Reid Spencer
be535661cc For PR780: 
1. Fix the macros in IncludeFile.h to put everything in the llvm namespace
2. Replace the previous explicit mechanism in all the .h and .cpp files
   with the macros in IncludeFile.h
This gets us a consistent mechanism throughout LLVM for ensuring linkage.
Next step is to make sure its used in enough places.

llvm-svn: 28715
 2006-06-07 22:00:26 +00:00
Reid Spencer
5861659a1e Change from using a stub function to a stub variable for passing to the 
IncludeFile hack to ensure linkage of analysis passes. This works around
some -pedantic warnings about assigning an object to a function.

llvm-svn: 28621
 2006-06-01 07:02:51 +00:00
Chris Lattner
6d4a221d80 Fix an et-forest memory leak. Patch by Daniel Berlin. 
llvm-svn: 26763
 2006-03-14 19:41:45 +00:00
Chris Lattner
c020bcf850 Change ET-Forest to automatically recalculate its DFSnum's if too many slow 
queries are made.

Patch by Daniel Berlin!

llvm-svn: 25323
 2006-01-14 20:55:09 +00:00
Chris Lattner
dfa65542a1 Bugfix for etforest updating. Contributed by Daniel Berlin. 
llvm-svn: 25152
 2006-01-09 07:58:01 +00:00
Chris Lattner
6c9cbdba1a Initial implementation of the ET-Forest data structure for dominators and 
post-dominators.  This code was written/adapted by Daniel Berlin!

llvm-svn: 25144
 2006-01-08 08:22:18 +00:00
Duraid Madina
c00eab5b03 more HP-UX cleanliness 
llvm-svn: 25015
 2005-12-26 08:35:06 +00:00
Chris Lattner
f519d1c6ef This requires proper dominance 
llvm-svn: 24408
 2005-11-18 07:27:53 +00:00
Chris Lattner
e093c6f565 Make dominates(A,B) work with post dominators. Patch contributed by 
Naveen Neelakantam, thanks!

llvm-svn: 21543
 2005-04-25 20:50:33 +00:00
Jeff Cohen
82639853c0 Eliminate tabs and trailing spaces 
llvm-svn: 21480
 2005-04-23 21:38:35 +00:00
Misha Brukman
b1c9317bb4 Remove trailing whitespace 
llvm-svn: 21427
 2005-04-21 23:48:37 +00:00
Reid Spencer
9083936835 For PR387:\ 
Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual

llvm-svn: 18589
 2004-12-07 04:03:45 +00:00
Chris Lattner
eb6b8e5772 Make sure any client of Dominators.h links in Dominators.cpp 
Patch by Morten Ofstad

llvm-svn: 16987
 2004-10-14 15:47:16 +00:00
Reid Spencer
7c16caa336 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Chris Lattner
39396e2df9 compute dominator tree children in a deterministic order that does not depend 
on the address of BasicBlock objects in memory.  This eliminates stuff like this:

 Inorder Dominator Tree:
   [1]  %entry
     [2]  %loopentry
-      [3]  %loopexit
       [3]  %no_exit
-        [4]  %endif
         [4]  %then
+        [4]  %endif
+      [3]  %loopexit
       [3]  %return

llvm-svn: 14253
 2004-06-19 20:13:48 +00:00
Chris Lattner
89f803bb32 Print out immediate dominators in program order, not in random order based on the address 
of BasicBlock objects

llvm-svn: 14252
 2004-06-19 20:04:47 +00:00
Chris Lattner
c5e0be647c Add missing #include 
llvm-svn: 14037
 2004-06-05 00:24:59 +00:00
Chris Lattner
d1ea9cd345 The recalclulate method was a nasty hack that was once used by the -cee pass, 
which never worked itself.  The cee pass still doesn't work, but it doesn't use
this method anymore anyway, so eliminate the method.

llvm-svn: 10302
 2003-12-07 00:55:32 +00:00
Chris Lattner
00f5167693 Completely rewrite domset, idom, and domtree implementation. Now it is based 
on the algorithm for directly computing immediate dominators presented in this
paper:

  A Fast Algorithm for Finding Dominators in a Flowgraph
  T. Lengauer & R. Tarjan, ACM TOPLAS July 1979, pgs 121-141.

This _substantially_ speeds up construction of all dominator related information.
Post-dominators to follow.

llvm-svn: 10301
 2003-12-07 00:38:08 +00:00
Chris Lattner
189d19fb04 Finegrainify namespacification 
llvm-svn: 10131
 2003-11-21 20:23:48 +00:00
Brian Gaeke
960707c335 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
John Criswell
482202a601 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Chris Lattner
5dac64f629 Rename Function::getEntryNode -> getEntryBlock 
llvm-svn: 8625
 2003-09-20 14:39:18 +00:00
Chris Lattner
bb9d03b9c0 Renamed DominatorTree::Node::getNode() -> getBlock() 
llvm-svn: 8469
 2003-09-11 16:26:13 +00:00
Chris Lattner
630d2954be Rework dominator interfaces to handle changes in the post-dominance 
construction.  Now there may be multiple root blocks, and null is a
special node used to mark the "virtual" exit node of a CFG.

llvm-svn: 8461
 2003-09-10 20:37:51 +00:00