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223 Commits

Author SHA1 Message Date
Dan Gohman
d60e3bf386 Make DominanceFrontier::addBasicBlock return the iterator for the newly 
inserted block.

llvm-svn: 85010
 2009-10-24 19:57:58 +00:00
Chris Lattner
634b65ee79 add nodes_begin/end/iterator for dominfo, patch by Tobias Grosser! 
llvm-svn: 84395
 2009-10-18 04:05:53 +00:00
Dan Gohman
bd50ec69e4 Move the dominator verification code out of special code embedded within 
the PassManager code into a regular verifyAnalysis method.

Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.

llvm-svn: 82952
 2009-09-28 00:27:48 +00:00
Chris Lattner
1ceac42392 move DominatorTree::dominates for instructions out of line, 
no functionality change.

llvm-svn: 82490
 2009-09-21 22:30:50 +00:00
Chris Lattner
fb09f6e5ea fix PR4915, a crash in -debug mode. 
llvm-svn: 81177
 2009-09-08 01:22:54 +00:00
Dan Gohman
58b376193d Add const qualifiers to dominates' arguments. 
llvm-svn: 80801
 2009-09-02 17:05:05 +00:00
Dan Gohman
ebfea6a655 Be somewhat more consistent about const qualifiers. 
llvm-svn: 80264
 2009-08-27 17:54:15 +00:00
Dan Gohman
e4b0f12a19 Strip trailing whitespace from blank lines. 
llvm-svn: 80259
 2009-08-27 17:29:49 +00:00
Chris Lattner
1c0452caeb Change Pass::print to take a raw ostream instead of std::ostream, 
update all code that this affects.

llvm-svn: 79830
 2009-08-23 06:03:38 +00:00
Chris Lattner
ea2bfd7a9f eliminate the std::ostream form of WriteAsOperand and update clients. 
This also updates dominator related stuff.

llvm-svn: 79825
 2009-08-23 05:17:37 +00:00
Dan Gohman
e89dc58a7e Fix a bunch of other places that used operator[] to test whether 
a key is present in a std::map or DenseMap to use find instead.

llvm-svn: 74676
 2009-07-02 00:17:47 +00:00
Eli Friedman
dbf32ddf16 PR4317: Handle splits where the new block is unreachable correctly in 
DominatorTreeBase::Split.

llvm-svn: 72810
 2009-06-03 21:42:06 +00:00
Eli Friedman
b32b64b5b4 Fix broken logic in DominatorTreeBase::Split. Part of PR4238. 
llvm-svn: 72231
 2009-05-21 21:47:54 +00:00
Eli Friedman
36eff96b0f Fix indentation. 
llvm-svn: 72227
 2009-05-21 21:08:47 +00:00
Duncan Sands
e42a12bf0c When comparing DominanceFrontier's, advance iterators 
before erasing nodes, not after.  Otherwise dom frontier
checking reads from freed memory.

llvm-svn: 72168
 2009-05-20 15:12:01 +00:00
Dan Gohman
8271066844 Tidy up #includes, deleting a bunch of unnecessary #includes. 
llvm-svn: 61715
 2009-01-05 17:59:02 +00:00
Dan Gohman
e1f9be27bc Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Devang Patel
51aec7ffb8 Fix dom tree compare. Don't forget to compare children! 
llvm-svn: 52984
 2008-07-01 21:41:00 +00:00
Devang Patel
0fc2badc38 Fix typos in comments. 
Thanks for the feedback!

llvm-svn: 52978
 2008-07-01 19:50:56 +00:00
Devang Patel
1e1f4a0bdd Add dom info verifier. 
llvm-svn: 52967
 2008-07-01 17:44:24 +00:00
Owen Anderson
8d6d17cd2c Add an isReachableFromEntry method. 
llvm-svn: 52916
 2008-06-30 20:28:02 +00:00
Devang Patel
960d6ae6d1 Check empty dominance frontier. 
llvm-svn: 52437
 2008-06-18 02:12:09 +00:00
Evan Cheng
d9353009b7 Fix more -Wshorten-64-to-32 warnings. 
llvm-svn: 50659
 2008-05-05 18:30:58 +00:00
Owen Anderson
611b415d12 Fix PR1098 by correcting the postdominators analysis. 
Patch by Florian Brandner.

llvm-svn: 50628
 2008-05-04 21:07:35 +00:00
Owen Anderson
030428b435 Major repairs to the post-dominators implementation. Patch from Florian Brandner! 
llvm-svn: 49768
 2008-04-16 04:21:16 +00:00
Owen Anderson
93ab00f1d9 Make GVN more memory efficient, particularly on code that contains a large number of 
allocations, which GVN can't optimize anyways.

llvm-svn: 49329
 2008-04-07 09:59:07 +00:00
Dan Gohman
2b96ce84aa Add explicit keywords. 
llvm-svn: 48801
 2008-03-25 22:06:05 +00:00
Dan Gohman
a363ba510c Don't include <map> in Pass.h, which doesn't need it. This requires 
adding <map> to many files that actually do need it.

llvm-svn: 48667
 2008-03-21 23:51:57 +00:00
Devang Patel
5e8cbbea65 PassInfo keep tracks whether a pass is an analysis pass or not. 
llvm-svn: 48554
 2008-03-19 21:56:59 +00:00
Devang Patel
38f181fa8c Do not use virtual function to identify an analysis pass. 
llvm-svn: 48520
 2008-03-19 00:48:41 +00:00
Devang Patel
811ca3ddba Identify Analysis pass. 
Do not run analysis pass again if analysis info is still available.
This fixes PR1441.

llvm-svn: 48476
 2008-03-18 00:39:19 +00:00
Dan Gohman
0cfccf801d Add -analyze support to postdomtree. 
llvm-svn: 47680
 2008-02-27 18:38:29 +00:00
Chris Lattner
e0b1ee937a Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)

llvm-svn: 45411
 2007-12-29 19:59:42 +00:00
Owen Anderson
67929e6873 Add accessor for getting the underlying templated type. This is necessary for templated LoopInfo. 
llvm-svn: 44347
 2007-11-27 03:33:40 +00:00
Dan Gohman
27ac53cc23 Remove meaningless qualifiers from return types, avoiding compiler warnings. 
llvm-svn: 44240
 2007-11-19 20:46:23 +00:00
Owen Anderson
4314cf9d58 Some fixes to get MachineDomTree working better. 
llvm-svn: 43541
 2007-10-31 03:30:14 +00:00
Owen Anderson
229333c94b Add a first attempt at dominator information for MBB's. Use with caution: this has been tested to compile. It has not yet been confirmed to generate correct analysis. 
llvm-svn: 43438
 2007-10-29 04:50:50 +00:00
Owen Anderson
dc3329dbf7 Make it possible for DomTreeBase to be constructed from MachineFunction's as well as just Function's. 
llvm-svn: 43321
 2007-10-25 00:16:57 +00:00
Owen Anderson
52b33065a4 Make DomTreeBase not a FunctionPass. 
llvm-svn: 43263
 2007-10-23 21:42:49 +00:00
Owen Anderson
962303b4ef Unbreak the build. Forgot to commit this file. 
llvm-svn: 43260
 2007-10-23 21:04:37 +00:00
Owen Anderson
4b407757d0 Move Split<...>() into DomTreeBase. This should make the #include's of DominatorInternals.h 
in CodeExtractor and LoopSimplify unnecessary.

Hartmut, could you confirm that this fixes the issues you were seeing?

llvm-svn: 43115
 2007-10-18 05:13:52 +00:00
Hartmut Kaiser
ed12f66488 Updated VC++ build system. 
Silenced some VC warnings.

I'm getting linker errors, though: unresolved externals:

llvm::Split<class llvm::BasicBlock *,struct llvm::GraphTraits<class llvm::BasicBlock *> >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

and

llvm::Split<struct llvm::Inverse<class llvm::BasicBlock *>,struct llvm::GraphTraits<struct llvm::Inverse<class llvm::BasicBlock *> > >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

Where are these defined?

llvm-svn: 43073
 2007-10-17 14:56:40 +00:00
Owen Anderson
1235d1218b Move splitBlock into DomTreeBase from DomTree. 
llvm-svn: 43059
 2007-10-17 02:03:17 +00:00
Owen Anderson
315471786b Fix some formatting. 
llvm-svn: 43049
 2007-10-16 22:59:15 +00:00
Owen Anderson
43fefb53a6 Template DominatorTreeBase by node type. This is the next major step towards 
having dominator information on MBB's.

llvm-svn: 43036
 2007-10-16 19:59:25 +00:00
Owen Anderson
ffcd82d1ed Begin the process of allowing DomTree on MBB's. Step One: template DomTreeNode by making it a typedef of a templated DomTreeNodeBase. 
llvm-svn: 42743
 2007-10-08 07:44:39 +00:00
Owen Anderson
cb51170957 Completely merge the implementation details of DomTree and PostDomTree. 
Also, add a FIXME for a bug in PostDomTree calculation I noticed while writing this,

llvm-svn: 42593
 2007-10-03 21:25:45 +00:00
Owen Anderson
09ba812a80 Template-ize more of the DomTree internal implementation details. Only the calculate() methods for DomTree and PostDomTree remain to be merged/template-ized. 
llvm-svn: 42476
 2007-09-30 04:17:16 +00:00
Owen Anderson
a533c458f5 Have PostDomTree use the newly templated DFSPass. 
llvm-svn: 42427
 2007-09-28 01:23:47 +00:00
Owen Anderson
e529f66979 Convert DFSPass into a templated friend function, in preparation for making it common to DomTree and PostDomTree. 
llvm-svn: 42420
 2007-09-27 23:23:00 +00:00
Owen Anderson
a0a11ee8b9 Merge significant portions of the DomTree and PostDomTree implementations. 
The two remaining unmerged parts are DFSPass, and the Calculate().

llvm-svn: 42255
 2007-09-24 02:29:29 +00:00
Owen Anderson
677db80624 Move DFSPass back down into DominatorTree. I need to figure out what the difference is between it 
and the PostDomTree version first.

llvm-svn: 42250
 2007-09-23 22:16:38 +00:00
Owen Anderson
de1937fcee Factor the dominator tree calculation details out into DominatorCalculation.h. This 
change is not useful in and of itself, but it lays the groundwork for combining
the dominator and postdominator implementations.

Also, factor a few methods that are common to DominatorTree and PostDominatorTree
into DominatorTreeBase.  Again, this will make merging the two calculation methods
simpler in the future.

llvm-svn: 42248
 2007-09-23 21:31:44 +00:00
Nick Lewycky
068c7d20e2 Simplify. 
llvm-svn: 41167
 2007-08-18 14:46:55 +00:00
Devang Patel
fded73828f When one branch of condition is eliminated then head of the other 
branch is not necessary immediate dominators of merge blcok in all cases.

llvm-svn: 41144
 2007-08-17 21:59:16 +00:00
Devang Patel
35c1c452b0 No need to use iterator to erase basic block. 
llvm-svn: 41074
 2007-08-14 16:53:24 +00:00
Devang Patel
993388b1ee Add methods to erase basic block entry. 
llvm-svn: 41052
 2007-08-13 22:10:29 +00:00
Reid Spencer
8c5c7c8453 Change casts from old style to new style. This helps document the details 
better, gives the compiler a chance to validate the cast and reduces warnings
if the user turns on -Wold-style-cast option.

llvm-svn: 41033
 2007-08-12 08:12:35 +00:00
Chris Lattner
65d638a918 reimplement dfs number computation to be significantly faster. This speeds up 
natural loop canonicalization (which does many cfg xforms) by 4.3x, for 
example.  This also fixes a bug in postdom dfnumber computation.

llvm-svn: 40920
 2007-08-08 05:51:24 +00:00
Chris Lattner
99df553268 Various random cleanups, add two accessors to DomTreeNode: getDFSNumIn/getDFSNumOut 
llvm-svn: 40856
 2007-08-06 06:15:43 +00:00
Chris Lattner
a5a692b9bb Switch the internal "Info" map from an std::map to a DenseMap. This 
speeds up idom by about 45% and postidom by about 33%.

Some extra precautions must be taken not to invalidate densemap iterators.

llvm-svn: 40827
 2007-08-05 00:02:00 +00:00
Chris Lattner
5912537997 switch the DomTreeNodes and IDoms maps in idom/postidom to a 
DenseMap instead of an std::map.  This speeds up postdomtree
by about 25% and domtree by about 23%.  It also speeds up clients,
for example, domfrontier by 11%, mem2reg by 4% and ADCE by 6%.

llvm-svn: 40826
 2007-08-04 23:48:07 +00:00
Devang Patel
7d791bb10c Remove unused method - getIDomBlock(). 
llvm-svn: 37865
 2007-07-04 01:11:19 +00:00
Devang Patel
6e6a5c1893 Fix typo in assertion check. 
llvm-svn: 37864
 2007-07-04 01:05:22 +00:00
Devang Patel
2f757c3a96 Remove unnecessary comments. 
llvm-svn: 37774
 2007-06-28 02:11:54 +00:00
Devang Patel
ce4ea8a62c Handle the case when block dominates itself. 
llvm-svn: 37773
 2007-06-28 02:07:08 +00:00
Devang Patel
28d2851f39 Remove ETForest. 
llvm-svn: 37765
 2007-06-27 20:53:52 +00:00
Devang Patel
bfb1c7192e Move code to update dominator information after basic block is split 
from LoopSimplify.cpp to Dominator.cpp

llvm-svn: 37689
 2007-06-21 17:23:45 +00:00
Devang Patel
ca555be4ca Protect updateDFSNumbers() 
llvm-svn: 37560
 2007-06-12 17:30:56 +00:00
Devang Patel
73ae5acfd0 Make DFS number manipulation methods private. 
llvm-svn: 37553
 2007-06-12 05:49:31 +00:00
Devang Patel
ab4cb51479 Break DominatorTree from ETNode. 
Remove unused PostETForest.

llvm-svn: 37551
 2007-06-12 00:54:38 +00:00
Devang Patel
73d23a5f70 Maintain DFS number in DomTreeNode itself. 
This means now ETNodes are not useful anymore.

llvm-svn: 37546
 2007-06-12 00:14:41 +00:00
Devang Patel
bc3887310b Add and use DominatorTreeBase::findNearestCommonDominator(). 
llvm-svn: 37545
 2007-06-11 23:31:22 +00:00
Devang Patel
d1a779c4fe Fix spelling. 
llvm-svn: 37522
 2007-06-08 17:59:02 +00:00
Devang Patel
cfb3a761ae Update LoopSimplify to require and preserve DominatorTree only. 
Now LoopSimplify does not require nor preserve ETForest.

llvm-svn: 37512
 2007-06-08 01:50:32 +00:00
Devang Patel
738f460b18 Add new method - nearestCommonDominator(). 
llvm-svn: 37508
 2007-06-08 00:21:17 +00:00
Devang Patel
9772222f41 Add instruction level dominates(A,B) interface. 
llvm-svn: 37504
 2007-06-07 23:52:40 +00:00
Devang Patel
3daf3625ab Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient. 
llvm-svn: 37501
 2007-06-07 22:17:16 +00:00
Devang Patel
3aece48470 Add basic block level properlyDominates(A,B) interface. 
llvm-svn: 37497
 2007-06-07 21:34:22 +00:00
Devang Patel
e63f8b85f7 Add BasicBlock level dominates(A,B) interface. 
llvm-svn: 37493
 2007-06-07 18:39:40 +00:00
Devang Patel
babcd06827 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.

llvm-svn: 37492
 2007-06-07 17:47:21 +00:00
Devang Patel
782ec1fbbb Break friendship. 
llvm-svn: 37450
 2007-06-06 00:59:48 +00:00
Devang Patel
43c684a62d Simplify class hierarchy. 
llvm-svn: 37447
 2007-06-06 00:46:36 +00:00
Devang Patel
ba29e5e591 s/ETNode::getChildren/ETNode::getETNodeChildren/g 
llvm-svn: 37426
 2007-06-04 23:45:02 +00:00
Devang Patel
3ad9b9f927 Add FIXMEs. 
llvm-svn: 37417
 2007-06-04 17:38:00 +00:00
Devang Patel
8faaa37b1a Remove unused method. 
llvm-svn: 37416
 2007-06-04 16:49:36 +00:00
Devang Patel
74785c1f3c s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g 
llvm-svn: 37415
 2007-06-04 16:43:25 +00:00
Devang Patel
26d8a86df7 Add basic block level interface to change immediate dominator 
and create new node.

llvm-svn: 37414
 2007-06-04 16:22:33 +00:00
Devang Patel
2ef6caf14f s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
llvm-svn: 37407
 2007-06-04 00:32:22 +00:00
Devang Patel
d58b82f83a s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
llvm-svn: 37403
 2007-06-03 06:26:14 +00:00
Devang Patel
bf5c49f62c Add dump() routines for debugging assistance. 
llvm-svn: 37314
 2007-05-23 19:55:36 +00:00
Chris Lattner
82c4362a67 update comments 
llvm-svn: 37027
 2007-05-14 01:54:16 +00:00
Nick Lewycky
c2306ff5b4 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Devang Patel
e0b9bd0e49 Use iterative while loop instead of recursive function call. 
llvm-svn: 36694
 2007-05-03 20:55:18 +00:00
Devang Patel
cd45427a87 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Owen Anderson
2767bc3188 Fix some null checks to actually test the part that needs checking. 
llvm-svn: 36298
 2007-04-21 07:04:45 +00:00
Owen Anderson
e49ca2c78b Add null checks and const-ify these accessors. 
llvm-svn: 36270
 2007-04-20 05:44:16 +00:00
Owen Anderson
c08636e1f0 Add accessor to get the blocks immediately dominated by a given block to ETForest. 
llvm-svn: 36251
 2007-04-18 05:25:09 +00:00