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181 Commits

Author SHA1 Message Date
Bill Wendling
59493294dd Spruce up the error output. 
llvm-svn: 128451
 2011-03-29 04:28:26 +00:00
Cameron Zwarich
bf70725ae3 Update a comment. 
llvm-svn: 123879
 2011-01-20 03:58:43 +00:00
Cameron Zwarich
ea98dd25a5 Remove an unnecessary #include. 
llvm-svn: 123748
 2011-01-18 06:07:18 +00:00
Cameron Zwarich
c8083524f8 Move DominanceFrontier from VMCore to Analysis. 
llvm-svn: 123747
 2011-01-18 06:06:27 +00:00
Cameron Zwarich
caca9a63e6 There is no point in verifying an analysis that is never updated. 
llvm-svn: 123743
 2011-01-18 05:44:04 +00:00
Cameron Zwarich
62a9d4d454 Remove some now-unused DominanceFrontier methods. 
llvm-svn: 123726
 2011-01-18 04:21:57 +00:00
Chris Lattner
e07601d493 make domtree verification print something useful on failure. 
llvm-svn: 123078
 2011-01-08 19:55:55 +00:00
Chris Lattner
e396e846b4 split dom frontier handling stuff out to its own DominanceFrontier header, 
so that Dominators.h is *just* domtree.  Also prune #includes a bit.

llvm-svn: 122714
 2011-01-02 22:09:33 +00:00
Owen Anderson
63f757463c Begin adding static dependence information to passes, which will allow us to 
perform initialization without static constructors AND without explicit initialization
by the client.  For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve.  I hope to be able to relax
the latter requirement in the future.

llvm-svn: 116334
 2010-10-12 19:48:12 +00:00
Owen Anderson
69cbf2e8b7 Now with fewer extraneous semicolons! 
llvm-svn: 115996
 2010-10-07 22:25:06 +00:00
Dan Gohman
e191a19b69 Fix (at least) quadratic worst-case complexity in DominanceFrontier::splitBlock: 
don't visit all blocks in the function, and don't iterate over the split blocks'
predecessor lists for each block visited.

Also, remove the special-case test for the entry block. Splitting the entry
block isn't common enough to make this worthwhile.

This fixes a major compile-time bottleneck which is exposed now that
LoopSimplify isn't being redundantly run both before and after
DominanceFrontier.

llvm-svn: 109408
 2010-07-26 17:55:15 +00:00
Dan Gohman
c90f474e23 Avoid copying and recopying a std::set. 
llvm-svn: 109405
 2010-07-26 17:45:33 +00:00
Dan Gohman
8babd895c7 Exit a search loop when the search goal is found. 
llvm-svn: 109404
 2010-07-26 17:41:45 +00:00
Dan Gohman
014eec6389 Fix formatting. 
llvm-svn: 109403
 2010-07-26 17:39:33 +00:00
Owen Anderson
f8addbb0a1 Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
llvm-svn: 109045
 2010-07-21 22:09:45 +00:00
Tobias Grosser
9c86be4570 LoopSimplify does not update domfrontier correctly. 
This fixes PR7649.

llvm-svn: 108513
 2010-07-16 05:59:45 +00:00
Tobias Grosser
97dc00d1d8 Add dump() to DominanceFrontier 
llvm-svn: 108512
 2010-07-16 05:59:39 +00:00
Dan Gohman
d48633d340 Fix a bunch of namespace polution. 
llvm-svn: 101376
 2010-04-15 17:08:50 +00:00
Dan Gohman
4e910beb76 Fix a typo and some indentation. 
llvm-svn: 100908
 2010-04-09 22:47:25 +00:00
John McCall
57eaeeca78 Qualify a bunch of explicit template instantiations to satisfy clang++. 
llvm-svn: 91736
 2009-12-19 00:55:12 +00:00
Dan Gohman
e970f8a450 Make DominanceFrontierBase::print's output prettier. 
llvm-svn: 85011
 2009-10-24 20:01:11 +00:00
Dan Gohman
584645dfe8 Remove temporary debugging hack. 
llvm-svn: 82953
 2009-09-28 00:44:15 +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
611a14fce0 Fix PR5023: The instruction form of DominatorTree::dominates did not 
take into consideration that the result of an invoke is only valid in
the normal dest, not the unwind dest.  This caused 'PHINode::hasConstantValue'
to return true in an invalid situation, causing mem2reg to delete a phi that
was actually needed.  This caused a crash building 483.xalancbmk.

llvm-svn: 82491
 2009-09-21 22:39:35 +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
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
Chris Lattner
c807a76334 switch DominanceFrontier::splitBlock to use a smallvector for 
the pred list instead of a vector, saving a boat load of malloc/free's.

llvm-svn: 79062
 2009-08-15 01:39:28 +00:00
Eli Friedman
d4f9668eb7 Fix some incorrect logic in DominanceFrontier::splitBlock. Part of 
PR4238.

llvm-svn: 72223
 2009-05-21 20:40:30 +00:00
Devang Patel
5b8e75e2fe Move dominator info printer into tool/opt/GraphPrinters.cpp 
llvm-svn: 52907
 2008-06-30 17:32:58 +00:00
Devang Patel
d5faa747e9 Add dominator info printer pass. 
llvm-svn: 52829
 2008-06-27 16:43:21 +00:00
Devang Patel
bae88af8c1 Dominance Frontier is cfg only pass. 
llvm-svn: 51075
 2008-05-13 22:43:21 +00:00
Chris Lattner
7925af6adf don't print dominators every time it is computed with -debug. 
llvm-svn: 50032
 2008-04-21 06:19:02 +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
Devang Patel
1b64c7d1e5 These passes preserve CFG. 
This patch fixes Benchmarks/Trimaran/enc-pc1/enc-pc1 failure reported by Grawp-PIC i386 nightly tester

llvm-svn: 48623
 2008-03-20 23:27:18 +00:00
Devang Patel
f15fe34521 Restore isCFGOnly property of various analysis passes. 
llvm-svn: 48579
 2008-03-20 02:25:21 +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
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Owen Anderson
33b9693ab8 Make DomTree and PostDomTree thin wrappers around DomTreeBase, rather than inheriting from it. 
llvm-svn: 43259
 2007-10-23 20:58:37 +00:00
Owen Anderson
1235d1218b Move splitBlock into DomTreeBase from DomTree. 
llvm-svn: 43059
 2007-10-17 02:03:17 +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
Devang Patel
36b68478cb Fix bug in updating dominance frontier after loop 
unswitch when frontier includes basic blocks that 
are not inside loop.

llvm-svn: 42654
 2007-10-05 22:29:34 +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
91e23d710c Factor some code from the DomTree and PostDomTree calculate methods up into 
each one's runOnFunction method.

llvm-svn: 42563
 2007-10-03 03:20:17 +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
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
Devang Patel
833a8ea187 Assert sooner. Fix wordings. 
llvm-svn: 41075
 2007-08-14 16:53:52 +00:00
Devang Patel
993388b1ee Add methods to erase basic block entry. 
llvm-svn: 41052
 2007-08-13 22:10:29 +00:00