7fb6da8e4d
Fix a silly mistake that was causing failures.
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llvm-svn: 37712
2007-06-24 08:42:24 +00:00
0f986fdbfa
Remove tabs.
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llvm-svn: 37710
2007-06-24 04:40:16 +00:00
26e25d340e
Remove use of ETForest. Also cleaned up issues around unreachable basic
...
blocks, and optimizing within one basic block.
llvm-svn: 37709
2007-06-24 04:36:20 +00:00
49409f6501
Rework topo_sort so eliminate some behavior that scaled terribly. This reduces the time to optimize 403.gcc from 18.2s to 17.5s,
...
and has an even larger effect on larger testcases.
llvm-svn: 37708
2007-06-22 21:31:16 +00:00
21a1131565
Perform fewer set insertions while calculating ANTIC_IN. This reduces the amount of time to optimize 403.gcc from 21.9s to 18.2s.
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llvm-svn: 37707
2007-06-22 18:27:04 +00:00
92c7b22e1a
Remove some code that I was using for collecting performance information that should not have been committed.
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llvm-svn: 37706
2007-06-22 17:04:40 +00:00
f6e21871ad
Avoid excessive calls to find_leader when calculating AVAIL_OUT. This reduces the time to optimize 403.gcc from 23.5s to 21.9s.
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llvm-svn: 37702
2007-06-22 03:14:03 +00:00
d50a29d613
Reserve space in vectors before topologically sorting into them. This improves the time to optimize 403.gcc from 28s to 23.5s.
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llvm-svn: 37699
2007-06-22 00:43:22 +00:00
28a2d449fa
Make a bunch of optimizations for compile time to GVNPRE, including smarter set unions, deferring blocks rather than computing maximal sets, and smarter use of sets. With these enhancements, the time to optimize 273.perlbmk goes from 5.3s to 2.7s.
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llvm-svn: 37698
2007-06-22 00:20:30 +00:00
fb032b176b
Significantly improve the documentation of the instcombine divide/compare
...
transformation. Also, keep track of which end of the integer interval overflows
occur on. This fixes Transforms/InstCombine/2007-06-21-DivCompareMiscomp.ll
and rdar://5278853, a miscompilation of perl.
llvm-svn: 37692
2007-06-21 18:11:19 +00:00
2ff912bf33
Change lots of sets from std::set to SmallPtrSet. This reduces the time required to optimize 253.perlbmk from 10.9s to 5.3s.
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llvm-svn: 37690
2007-06-21 17:57:53 +00:00
d5258a23a5
Move code to update dominator information after basic block is split
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from LoopSimplify.cpp to Dominator.cpp
llvm-svn: 37689
2007-06-21 17:23:45 +00:00
27876a3ff9
Eliminate a redundant check. This speeds up optimization of 253.perlbmk from 13.5 seconds to 10.9 seconds.
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llvm-svn: 37683
2007-06-21 01:59:05 +00:00
fd5683ad7a
Comment-ize the functions in GVNPRE.
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llvm-svn: 37681
2007-06-21 00:19:05 +00:00
3bbec59e8b
refactor a bunch of code out of visitICmpInstWithInstAndIntCst into its own
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routine.
llvm-svn: 37679
2007-06-20 23:46:26 +00:00
06c1e585c9
Split runOnFunction into many smaller functions. This make it easier to get accurate performance analysis of GVNPRE.
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llvm-svn: 37678
2007-06-20 22:10:02 +00:00
b0714bb7bb
Make GVNPRE accurate report whether it modified the function or not.
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llvm-svn: 37673
2007-06-20 18:30:20 +00:00
7b0fb44ca9
Get rid of an unneeded helper function.
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llvm-svn: 37670
2007-06-20 00:43:33 +00:00
1ad2c10215
Use a DenseMap instead of an std::map for the value numbering. This reduces the time to optimize lencod on a PPC Debug build from ~300s to ~140s.
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llvm-svn: 37668
2007-06-19 23:23:54 +00:00
2320d430bd
Make dependsOnInvoke much more specific in what it tests, which in turn make it much faster to run. This reduces the time to optimize lencondwith a debug build on PPC from ~450s to ~300s.
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llvm-svn: 37667
2007-06-19 23:07:16 +00:00
c655839d71
Moved Inliner.h to include/llvm/Transforms/IPO/InlinerPass.h
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llvm-svn: 37666
2007-06-19 22:31:52 +00:00
ab11b1c702
Inliner pass header file was moved.
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llvm-svn: 37665
2007-06-19 22:29:50 +00:00
32f53bbd85
Rename ScalarEvolution::deleteInstructionFromRecords to
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deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.
llvm-svn: 37657
2007-06-19 14:28:31 +00:00
1370faf889
Handle constants in phi nodes properly. This fixes test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll
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llvm-svn: 37655
2007-06-19 07:35:36 +00:00
09a33a4f64
silence a bogus warning Duraid ran into.
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llvm-svn: 37649
2007-06-19 05:43:49 +00:00
91c54950b3
Be careful to erase values from all of the appropriate sets when they're not needed anymore. This fixes a few more memory-related issues.
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llvm-svn: 37647
2007-06-19 05:37:32 +00:00
b9cbaed623
Remember to clear the maximal sets between functions.
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Thanks to Nicholas for valgrinding this.
llvm-svn: 37646
2007-06-19 04:32:55 +00:00
b56fba0c5a
Refactor GVNPRE to use a much smart method of uniquing value sets, and centralize a lot of the value numbering information. No functionality change.
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llvm-svn: 37645
2007-06-19 03:31:41 +00:00
dd998e1913
Cache the results of dependsOnInvoke()
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llvm-svn: 37622
2007-06-18 04:42:29 +00:00
f1c04e1ddb
Fix indentation.
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llvm-svn: 37621
2007-06-18 04:31:21 +00:00
b364b413af
Don't perform an expensive check if it's not necessary.
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llvm-svn: 37620
2007-06-18 04:30:44 +00:00
658f2c4881
Fix test/Transforms/GVNPRE/2007-06-15-InvokeInst.ll by ignoring all instructions that depend on invokes.
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llvm-svn: 37610
2007-06-16 00:26:54 +00:00
203a035251
Use SCEVConstant::get instead of SCEVUnknown::get to create an
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integer constant SCEV.
llvm-svn: 37596
2007-06-15 18:00:55 +00:00
acaed06827
Fix test/Transforms/GVNPRE/2007-06-15-Looping.ll
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llvm-svn: 37595
2007-06-15 17:55:15 +00:00
cb9e09ad57
Add a SCEV class and supporting code for sign-extend expressions.
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This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.
llvm-svn: 37591
2007-06-15 14:38:12 +00:00
373389260f
Generalize many transforms to work on ~ of vectors in addition to ~ of
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integer ops. This implements Transforms/InstCombine/and-or-not.ll
test3/test4, and finishes off PR1510
llvm-svn: 37589
2007-06-15 06:23:19 +00:00
481e28b1f5
Implement two xforms:
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1. ~(~X | Y) === (X & ~Y)
2. (A|B) & ~(A&B) -> A^B
This allows us to transform ~(~(a|b) | (a&b)) -> a^b.
This implements PR1510 for scalar values.
llvm-svn: 37584
2007-06-15 05:58:24 +00:00
f14e5175ed
delete some obviously dead vector operations, which deletes a few thousand
...
operations from Duraids example.
llvm-svn: 37582
2007-06-15 05:26:55 +00:00
4036ad485f
Fix test/Transforms/GVNPRE/2007-06-12-PhiTranslate.ll
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llvm-svn: 37564
2007-06-12 22:43:57 +00:00
4276984012
Refactor some code, and fix test/Transforms/GVNPRE/2007-06-12-NoExit.ll by being more careful when using
...
post-dominator information.
llvm-svn: 37556
2007-06-12 16:57:50 +00:00
edfec0b515
Sink CmpInst's to their uses to reduce register pressure.
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llvm-svn: 37554
2007-06-12 16:50:17 +00:00
a75dd4dc56
Fix a few more bugs, including an instance of walking in reverse topological rather than topological order. This
...
fixes a testcase extracted from llvm-test.
llvm-svn: 37550
2007-06-12 00:50:47 +00:00
78b9c68164
Add and use DominatorTreeBase::findNearestCommonDominator().
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llvm-svn: 37545
2007-06-11 23:31:22 +00:00
536ac4dca7
Simplify.
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llvm-svn: 37542
2007-06-11 21:45:31 +00:00
d18054afcf
simplify
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llvm-svn: 37541
2007-06-11 21:25:31 +00:00
ab2eee89a4
Simplify. Dominator Tree is required so always available.
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llvm-svn: 37540
2007-06-11 21:18:00 +00:00
d184c18074
Handle functions with multiple exit blocks properly.
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llvm-svn: 37539
2007-06-11 16:25:17 +00:00
223718c40e
Perform PRE of comparison operators.
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llvm-svn: 37536
2007-06-09 18:35:31 +00:00
7d76b2a774
Collect statistics from GVN-PRE.
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llvm-svn: 37530
2007-06-08 22:02:36 +00:00
b232efaf48
Fix typo in a comment.
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llvm-svn: 37526
2007-06-08 20:57:08 +00:00
55994f2453
Fix a bug that was causing the elimination phase not to replace values when it should be.
...
With this patch, GVN-PRE now correctly optimizes the example from the thesis.
Many thanks to Daniel Berlin for helping me find errors in this.
llvm-svn: 37525
2007-06-08 20:44:02 +00:00
2e5efc30c2
Small bugfix, and const-ify some methods (Thanks, Bill).
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llvm-svn: 37513
2007-06-08 01:52:45 +00:00
becc466451
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
be80240b29
Add partial redundancy elimination.
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llvm-svn: 37510
2007-06-08 01:03:01 +00:00
8ecffa996a
Do not preserve ETForest.
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llvm-svn: 37506
2007-06-08 00:02:08 +00:00
3f4c6fe7e8
Do not require ETForest. Now it is unused by LICM.
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llvm-svn: 37502
2007-06-07 22:21:15 +00:00
cf470e5255
Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient.
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llvm-svn: 37501
2007-06-07 22:17:16 +00:00
fc7fdef7d2
Use DominatorTree instead of ETForest.
...
This allows faster immediate domiantor walk.
llvm-svn: 37500
2007-06-07 21:57:03 +00:00
df6355ccf8
Use DominatorTree instead of ETForest.
...
llvm-svn: 37499
2007-06-07 21:42:15 +00:00
fb582f8dda
Use DominatorTree instead of ETForest.
...
llvm-svn: 37498
2007-06-07 21:35:27 +00:00
5b8a5516e4
Use DominatorTree instead of ETForest.
...
llvm-svn: 37495
2007-06-07 18:45:06 +00:00
593e766fb5
Use DominatorTree instead of ETForest.
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llvm-svn: 37494
2007-06-07 18:40:55 +00:00
af41e4a192
Maintain ETNode as part of DomTreeNode.
...
This adds redundancy for now.
llvm-svn: 37492
2007-06-07 17:47:21 +00:00
5801c23e05
Formating fixes.
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llvm-svn: 37491
2007-06-07 17:12:16 +00:00
cb90f1d881
Instruct the inliner to obey the noinline attribute. Add test case.
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llvm-svn: 37481
2007-06-06 21:59:26 +00:00
34404e3247
simplify this code and fix PR1493, now that llvm-gcc3 is dead.
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llvm-svn: 37478
2007-06-06 20:51:41 +00:00
368e8872db
Fix PR1499.
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llvm-svn: 37472
2007-06-06 17:08:48 +00:00
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
634a063c1d
Add simple full redundancy elimination.
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llvm-svn: 37455
2007-06-06 01:27:49 +00:00
1b7b6e76ec
Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll
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llvm-svn: 37454
2007-06-06 01:23:55 +00:00
506310d3dd
Avoid non-trivial loop unswitching while optimizing for size.
...
llvm-svn: 37446
2007-06-06 00:21:03 +00:00
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
c84720913a
Don't leak memory.
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llvm-svn: 37442
2007-06-05 22:11:49 +00:00
9b89e4b561
Fix a small bug, some 80 cols violations, and add some more debugging output.
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llvm-svn: 37436
2007-06-05 17:31:23 +00:00
151169df1e
Allow insertelement, extractelement, and shufflevector to be hoisted/sunk
...
by LICM.
llvm-svn: 37435
2007-06-05 16:05:55 +00:00
6357bf20fa
Patches by Chuck Rose to unbreak V Studio builds.
...
Thanks Chuck!
llvm-svn: 37428
2007-06-04 23:52:59 +00:00
b3adb9876a
s/ETNode::getChildren/ETNode::getETNodeChildren/g
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llvm-svn: 37426
2007-06-04 23:45:02 +00:00
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
3df5299f94
Fix a bunch of small bugs, and improve the debugging output significantly.
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llvm-svn: 37424
2007-06-04 23:28:33 +00:00
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
38b6b22a41
Make phi_translate correct.
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llvm-svn: 37418
2007-06-04 18:05:26 +00:00
ebc5b96735
s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g
...
llvm-svn: 37415
2007-06-04 16:43:25 +00:00
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
bdd1aaef10
s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
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llvm-svn: 37407
2007-06-04 00:32:22 +00:00
0eca9aad10
Don't use the custom comparator where it's not necessary.
...
llvm-svn: 37406
2007-06-03 22:02:14 +00:00
0e8aa7b69a
s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
...
llvm-svn: 37403
2007-06-03 06:26:14 +00:00
46499645db
Remove an unused method.
...
llvm-svn: 37402
2007-06-03 05:58:25 +00:00
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
ac54a62fd2
Insert new instructions in AliasSet.
...
llvm-svn: 37390
2007-06-01 22:15:31 +00:00
48e93f2ce9
clean() needs to process things in topological order.
...
llvm-svn: 37389
2007-06-01 22:00:37 +00:00
4c89142466
Fix Expression comparison, which in turn fixes a value numbering error.
...
llvm-svn: 37386
2007-06-01 17:34:47 +00:00
331bf6a959
Add a topological sort function.
...
llvm-svn: 37376
2007-05-31 22:44:11 +00:00
81d156e16f
Attempt to fix up phi_translate.
...
llvm-svn: 37366
2007-05-31 00:42:15 +00:00
9b3b35d14f
Fix typo.
...
llvm-svn: 37360
2007-05-30 15:29:37 +00:00
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
4b0c1859fd
Fix a typo
...
llvm-svn: 37350
2007-05-29 23:34:14 +00:00
0c4230724c
Re-fix a bug, where I was now being too aggressive.
...
llvm-svn: 37348
2007-05-29 23:26:30 +00:00
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
f11bdc7637
Comment debug code out that I accidentally uncommented last time.
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llvm-svn: 37346
2007-05-29 22:43:03 +00:00
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