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3218 Commits

Author SHA1 Message Date
Owen Anderson be80240b29 Add partial redundancy elimination. 
llvm-svn: 37510
 2007-06-08 01:03:01 +00:00
Devang Patel 8ecffa996a Do not preserve ETForest. 
llvm-svn: 37506
 2007-06-08 00:02:08 +00:00
Devang Patel 3f4c6fe7e8 Do not require ETForest. Now it is unused by LICM. 
llvm-svn: 37502
 2007-06-07 22:21:15 +00:00
Devang Patel cf470e5255 Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient. 
llvm-svn: 37501
 2007-06-07 22:17:16 +00:00
Devang Patel fc7fdef7d2 Use DominatorTree instead of ETForest. 
This allows faster immediate domiantor walk.

llvm-svn: 37500
 2007-06-07 21:57:03 +00:00
Devang Patel df6355ccf8 Use DominatorTree instead of ETForest. 
llvm-svn: 37499
 2007-06-07 21:42:15 +00:00
Devang Patel fb582f8dda Use DominatorTree instead of ETForest. 
llvm-svn: 37498
 2007-06-07 21:35:27 +00:00
Devang Patel 5b8a5516e4 Use DominatorTree instead of ETForest. 
llvm-svn: 37495
 2007-06-07 18:45:06 +00:00
Devang Patel 593e766fb5 Use DominatorTree instead of ETForest. 
llvm-svn: 37494
 2007-06-07 18:40:55 +00:00
Devang Patel af41e4a192 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.

llvm-svn: 37492
 2007-06-07 17:47:21 +00:00
Tanya Lattner 5801c23e05 Formating fixes. 
llvm-svn: 37491
 2007-06-07 17:12:16 +00:00
Tanya Lattner cb90f1d881 Instruct the inliner to obey the noinline attribute. Add test case. 
llvm-svn: 37481
 2007-06-06 21:59:26 +00:00
Chris Lattner 34404e3247 simplify this code and fix PR1493, now that llvm-gcc3 is dead. 
llvm-svn: 37478
 2007-06-06 20:51:41 +00:00
Lauro Ramos Venancio 368e8872db Fix PR1499. 
llvm-svn: 37472
 2007-06-06 17:08:48 +00:00
Nick Lewycky 91ed6efc24 Inform ScalarEvolutions that we're deleting Values. 
This is the obviously correct part of the fix for PR1487.

llvm-svn: 37457
 2007-06-06 03:51:56 +00:00
Owen Anderson 634a063c1d Add simple full redundancy elimination. 
llvm-svn: 37455
 2007-06-06 01:27:49 +00:00
Chris Lattner 1b7b6e76ec Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll 
llvm-svn: 37454
 2007-06-06 01:23:55 +00:00
Devang Patel 506310d3dd Avoid non-trivial loop unswitching while optimizing for size. 
llvm-svn: 37446
 2007-06-06 00:21:03 +00:00
Owen Anderson ddbe430732 Fix a misunderstanding of the algorithm. Really, we should be tracking values 
and expression separately.  We can get around this, however, by only keeping
opaque values in TMP_GEN.

llvm-svn: 37443
 2007-06-05 23:46:12 +00:00
Owen Anderson c84720913a Don't leak memory. 
llvm-svn: 37442
 2007-06-05 22:11:49 +00:00
Owen Anderson 9b89e4b561 Fix a small bug, some 80 cols violations, and add some more debugging output. 
llvm-svn: 37436
 2007-06-05 17:31:23 +00:00
Dan Gohman 151169df1e Allow insertelement, extractelement, and shufflevector to be hoisted/sunk 
by LICM.

llvm-svn: 37435
 2007-06-05 16:05:55 +00:00
Bill Wendling 6357bf20fa Patches by Chuck Rose to unbreak V Studio builds. 
Thanks Chuck!

llvm-svn: 37428
 2007-06-04 23:52:59 +00:00
Devang Patel b3adb9876a s/ETNode::getChildren/ETNode::getETNodeChildren/g 
llvm-svn: 37426
 2007-06-04 23:45:02 +00:00
Owen Anderson 3c9d8eef21 Don't use std::set_difference when the two sets are sorted differently. Compute 
the difference manually instead.

This allows GVNPRE to produce correct analysis for the example in the GVNPRE
paper.

llvm-svn: 37425
 2007-06-04 23:34:56 +00:00
Owen Anderson 3df5299f94 Fix a bunch of small bugs, and improve the debugging output significantly. 
llvm-svn: 37424
 2007-06-04 23:28:33 +00:00
Chris Lattner d7897d40b6 When rebuilding constant structs, make sure to honor the isPacked bit. 
This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll

llvm-svn: 37423
 2007-06-04 22:23:42 +00:00
Owen Anderson 38b6b22a41 Make phi_translate correct. 
llvm-svn: 37418
 2007-06-04 18:05:26 +00:00
Devang Patel ebc5b96735 s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g 
llvm-svn: 37415
 2007-06-04 16:43:25 +00:00
Devang Patel a89566aefd 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 bdd1aaef10 s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
llvm-svn: 37407
 2007-06-04 00:32:22 +00:00
Owen Anderson 0eca9aad10 Don't use the custom comparator where it's not necessary. 
llvm-svn: 37406
 2007-06-03 22:02:14 +00:00
Devang Patel 0e8aa7b69a s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
llvm-svn: 37403
 2007-06-03 06:26:14 +00:00
Owen Anderson 46499645db Remove an unused method. 
llvm-svn: 37402
 2007-06-03 05:58:25 +00:00
Owen Anderson 0b68cda302 There's no need to have an Expression class... Value works just as well! This simplifies a lot of code. 
llvm-svn: 37401
 2007-06-03 05:55:58 +00:00
Devang Patel ac54a62fd2 Insert new instructions in AliasSet. 
llvm-svn: 37390
 2007-06-01 22:15:31 +00:00
Owen Anderson 48e93f2ce9 clean() needs to process things in topological order. 
llvm-svn: 37389
 2007-06-01 22:00:37 +00:00
Owen Anderson 4c89142466 Fix Expression comparison, which in turn fixes a value numbering error. 
llvm-svn: 37386
 2007-06-01 17:34:47 +00:00
Owen Anderson 331bf6a959 Add a topological sort function. 
llvm-svn: 37376
 2007-05-31 22:44:11 +00:00
Owen Anderson 81d156e16f Attempt to fix up phi_translate. 
llvm-svn: 37366
 2007-05-31 00:42:15 +00:00
Devang Patel 9b3b35d14f Fix typo. 
llvm-svn: 37360
 2007-05-30 15:29:37 +00:00
Chris Lattner 8767920f20 Fix Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll and the second 
half of PR1421, by not decimating structs with holes that are the source and
destination of a memcpy.

llvm-svn: 37358
 2007-05-30 06:11:23 +00:00
Owen Anderson 4b0c1859fd Fix a typo 
llvm-svn: 37350
 2007-05-29 23:34:14 +00:00
Owen Anderson 0c4230724c Re-fix a bug, where I was now being too aggressive. 
llvm-svn: 37348
 2007-05-29 23:26:30 +00:00
Owen Anderson 4a6ec8fb57 Use proper debugging facilities so other people don't have to look at my commented-out 
debugging lines.

llvm-svn: 37347
 2007-05-29 23:15:21 +00:00
Owen Anderson f11bdc7637 Comment debug code out that I accidentally uncommented last time. 
llvm-svn: 37346
 2007-05-29 22:43:03 +00:00
Owen Anderson ac83a3e4ff Add a place where I missed using the maximal set. Note that using the maximal 
set this way is _SLOW_.  Somewhere down the line, I'll look at speeding it up.

llvm-svn: 37345
 2007-05-29 22:35:41 +00:00
Owen Anderson 5fba6c19b2 Very first part of a GVN-PRE implementation. It currently performs a bunch of analysis, and nothing more. It is also quite slow for the moment. However, 
it should give a sense of what's going on.

llvm-svn: 37343
 2007-05-29 21:53:49 +00:00
Chris Lattner 80c94a4a04 Fix PR1446 by not scalarrepl'ing giant structures. 
llvm-svn: 37326
 2007-05-24 18:43:04 +00:00
Dan Gohman 30978078bf Minor comment cleanups. 
llvm-svn: 37321
 2007-05-24 14:36:04 +00:00