Chris Lattner
63aeacfe3d
Revamp DSGraphs so that they can support multiple functions in the same
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DSGraph at one time
llvm-svn: 6994
2003-06-30 03:15:25 +00:00
Chris Lattner
151576413e
Adjust for new DSGraph API
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llvm-svn: 6993
2003-06-30 03:14:54 +00:00
Chris Lattner
7e29f97d1d
Abstract out the predicate which decides whether a function gets complete
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arguments or not...
llvm-svn: 6987
2003-06-29 22:37:07 +00:00
Chris Lattner
205d1acfba
Fix minor bug in previous checkin
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llvm-svn: 6986
2003-06-29 22:36:31 +00:00
Chris Lattner
992abdae26
Add support for ensuring that nodes are not incomplete
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llvm-svn: 6985
2003-06-29 22:36:15 +00:00
Chris Lattner
16e3c398c8
Add support for "physical subtyping", which fixes:
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DSGraph/2003-06-29-NodeCollapsing2.ll & DSGraph/PhysicalSubtyping.ll
llvm-svn: 6982
2003-06-29 20:27:45 +00:00
Chris Lattner
0aca3e714f
Add print method to not get silly warning from analyze
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llvm-svn: 6981
2003-06-29 20:27:16 +00:00
Chris Lattner
5da440b239
New pass which is useful for writing regression tests
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llvm-svn: 6979
2003-06-29 18:17:07 +00:00
Chris Lattner
0877def4f6
Expose must alias information for global variables, implementing: DSGraph/mustalias.ll
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llvm-svn: 6973
2003-06-29 00:54:08 +00:00
Chris Lattner
426b890f0d
If the alias analysis algorithm we are using can provide MUST alias information,
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expose it directly as value numbering information
llvm-svn: 6972
2003-06-29 00:53:34 +00:00
Chris Lattner
83e21a0c93
Count operands to instructions as well as just results. This allows for global variables to be checked as well
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llvm-svn: 6970
2003-06-29 00:07:11 +00:00
Chris Lattner
fa578d0eb4
Propagate globals graph from the local to bu to td globals graphs. This
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fixes bug: DSGraph/buglobals.ll
llvm-svn: 6947
2003-06-28 22:14:55 +00:00
Chris Lattner
c7ba69d8b4
Drop references to globals who do exist in the globals graph, but are never
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read or written to. Keep track of how many times this happens. This should
be good for deleting things like references to type information in C++ classes
llvm-svn: 6946
2003-06-28 22:10:58 +00:00
Chris Lattner
856a6cbb80
Avoid double negatives
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llvm-svn: 6945
2003-06-28 21:58:28 +00:00
Chris Lattner
2890f428a9
New pass to perform DSA based optimizations. Initially we just support turning
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globals into constants if we can prove it's safe
llvm-svn: 6941
2003-06-28 21:54:55 +00:00
Chris Lattner
81d75b7cfc
Fix bug: LevelRaise/2003-06-25-ExprAnalysis.ll
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llvm-svn: 6903
2003-06-25 17:09:03 +00:00
Chris Lattner
d791d8e427
Remove support for the MultiObject flag, which was fundamentally broken
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llvm-svn: 6840
2003-06-22 03:03:52 +00:00
Chris Lattner
4853d162af
* Changes to make NodeType be private to DSNode.
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* Add new MultiObject flag to DSNode which keeps track of whether or not
multiple objects have been merged into the node, allowing must-alias info
to be tracked.
llvm-svn: 6794
2003-06-19 21:15:11 +00:00
Chris Lattner
1bec75e730
Implement handling of constantexprs for disambiguation. This implements
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BasicAA/featuretest.ll:constexpr_test
llvm-svn: 6740
2003-06-17 15:25:37 +00:00
Chris Lattner
702a42bb8a
Avoid divide by zero errors
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llvm-svn: 6738
2003-06-17 15:07:20 +00:00
Chris Lattner
3937726a5b
Nodes get forwarded when they are collapsed currently.
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llvm-svn: 6696
2003-06-16 12:08:18 +00:00
Chris Lattner
82f4f85f6d
Remove bogus assertion: a node with no referrers could be collapsed if field-sensitivity was disabled
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llvm-svn: 6695
2003-06-16 12:07:39 +00:00
Chris Lattner
98105944b3
Implement forwarding from stores to loads of must-aliased pointers.
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This implements: GCSE/2003-06-13-LoadStoreEliminate.ll
llvm-svn: 6694
2003-06-16 12:06:41 +00:00
Chris Lattner
78dd43245d
Be more robust in the face of undefined behavior.
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Fixes bug: BasicAA/2003-06-01-AliasCrash.ll
llvm-svn: 6538
2003-06-02 05:42:39 +00:00
Chris Lattner
9ed31bc497
Fix bug: CBackend/2003-05-31-MissingStructName.ll
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llvm-svn: 6495
2003-05-31 23:30:52 +00:00
Chris Lattner
f789f29aaa
Eliminate unnecessary ->get calls that are now automatically handled.
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llvm-svn: 6397
2003-05-29 15:12:27 +00:00
Vikram S. Adve
6bbfe341dd
Renamed MachienOperand::opIsDef to MachineOperand::opIsDefOnly()
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and related functions and flags. Fixed several bugs where only
"isDef" was being checked, not "isDefAndUse".
llvm-svn: 6342
2003-05-27 00:06:48 +00:00
Chris Lattner
060f38121e
Fix Bug: BasicAA/2003-05-21-GEP-Problem.ll
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llvm-svn: 6270
2003-05-21 20:23:26 +00:00
Misha Brukman
9392c3ca74
The word `operands' has an `r' in it.
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llvm-svn: 6250
2003-05-20 20:36:39 +00:00
Misha Brukman
56f4fa10fd
Sparc instruction opcodes now all live under the `V9' namespace.
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llvm-svn: 6249
2003-05-20 20:32:24 +00:00
Misha Brukman
e5838c4d72
s/convertable/convertible/g
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llvm-svn: 6248
2003-05-20 18:45:36 +00:00
Chris Lattner
0e416df2b2
Fix bug: Analysis/LoopInfo/2003-05-15-NestingProblem.ll
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llvm-svn: 6230
2003-05-15 18:03:51 +00:00
Chris Lattner
d14c200425
Fix miscompilation in Fhourstones and bug: LICM/2003-05-02-LoadHoist.ll
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llvm-svn: 5994
2003-05-03 03:42:08 +00:00
Chris Lattner
d021c2d56b
Fix bug: LoopPreheaders/2003-04-25-AssertFail.ll
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llvm-svn: 5959
2003-04-26 19:34:18 +00:00
Chris Lattner
be2d24e3b5
Fix BasicAA/2003-04-25-GEPCrash.ll
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llvm-svn: 5940
2003-04-25 18:03:06 +00:00
Chris Lattner
6ee2cf5d89
Remove unneccesary &*
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llvm-svn: 5871
2003-04-23 16:36:11 +00:00
Chris Lattner
4183b34d39
Fix bug: BasicAA/2003-04-22-GEPProblem.ll
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llvm-svn: 5858
2003-04-22 22:00:27 +00:00
Chris Lattner
dee5f75221
Fix bug: IndVarSimplify/2003-04-16-ExprAnalysis.ll
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llvm-svn: 5795
2003-04-16 22:50:19 +00:00
Chris Lattner
1520eda3e3
Remove unneccesary forward decl
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llvm-svn: 5710
2003-03-06 16:37:29 +00:00
Chris Lattner
ce848a3397
Fix bug: BasicAA/2003-03-04-GEPCrash.ll
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llvm-svn: 5695
2003-03-04 16:40:17 +00:00
Chris Lattner
c048bb3add
ADd two new 'add' methods
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llvm-svn: 5691
2003-03-03 23:28:05 +00:00
Chris Lattner
c12e5ccdb5
Don't apply type information to load instructions if it will cause collapsing
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llvm-svn: 5684
2003-03-03 17:13:31 +00:00
Chris Lattner
96afad55b9
Fix a problem with negative indexes
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llvm-svn: 5681
2003-03-02 23:43:34 +00:00
Chris Lattner
a777f7a7ed
Add dump method for Loops
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llvm-svn: 5671
2003-02-28 16:54:45 +00:00
Chris Lattner
72f876223f
Simplify a bit by using a new member function
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llvm-svn: 5662
2003-02-27 22:48:08 +00:00
Chris Lattner
72a9854584
Change behavior of changeExitBlock function to replace all instances of exit block
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llvm-svn: 5661
2003-02-27 22:37:44 +00:00
Chris Lattner
4f3b1d1808
Fix bug: LICM/2003-02-27-PreheaderProblem.ll
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There may be a single outside predecessor and
still need a new loop-preheader if the predecessor has multiple
successors.
llvm-svn: 5656
2003-02-27 21:51:38 +00:00
Chris Lattner
b7b58f65c6
- LoopInfo now calculates and tracks loop exit blocks
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llvm-svn: 5650
2003-02-27 00:38:34 +00:00
Chris Lattner
b5b0b7a934
Make the aliassettracker much more precise by actually tracking size
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information for various accesses. What a concept.
llvm-svn: 5647
2003-02-26 22:11:00 +00:00
Chris Lattner
053994f5a6
Fix bug: BasicAA/2003-02-26-AccessSizeTest.ll
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llvm-svn: 5645
2003-02-26 21:57:23 +00:00
Chris Lattner
d98ac881ca
Fix several bugs in basic-aa
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llvm-svn: 5643
2003-02-26 21:28:49 +00:00
Chris Lattner
dca12c77df
Add new -no-aa implementation
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llvm-svn: 5641
2003-02-26 19:57:10 +00:00
Chris Lattner
d6a2a99a1b
Move BasicAA pass out to it's own header file
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llvm-svn: 5640
2003-02-26 19:41:54 +00:00
Chris Lattner
e79b8319a6
Adjust to implement new AA interface
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llvm-svn: 5638
2003-02-26 19:29:36 +00:00
Chris Lattner
13082d63dd
Adjust to new AA interface
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llvm-svn: 5637
2003-02-26 19:29:16 +00:00
Chris Lattner
71b82bb494
Convert to work with new AliasAnalysis interface by conservatively assuming all pointers are arbitrarily large accesses
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llvm-svn: 5636
2003-02-26 19:28:57 +00:00
Chris Lattner
0edc91ff2a
Calculate and pass load sizes to the alias analysis infrastructure
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llvm-svn: 5635
2003-02-26 19:27:35 +00:00
Chris Lattner
d1e3208147
Adjust to new AA interface
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Add tracking for Mod/Ref info
llvm-svn: 5634
2003-02-26 19:27:05 +00:00
Chris Lattner
3a3118394c
- Checkin of the alias analysis work:
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* Takes into account the size of the memory reference to determine aliasing.
* Expose mod/ref information in a more consistent way
* BasicAA can now disambiguate A[i][1] and A[j][2] for conservative request
sizes
llvm-svn: 5633
2003-02-26 19:26:51 +00:00
Chris Lattner
7606fb65c0
This is a substantial rewrite of the AliasSetTracker class which now uses
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a union-find based algorithm, is significantly faster, and is more general.
It will also scale to handle call instructions correctly, which is a nice
added bonus.
This includes a new pass -print-alias-sets which can be used to show how
alias sets are formed for a particular analysis.
llvm-svn: 5619
2003-02-24 20:37:56 +00:00
Chris Lattner
ef6ea65807
Dramatically simplify building of natural loops and fix a bug where the BBMap
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was not correctly computed.
llvm-svn: 5606
2003-02-22 21:33:11 +00:00
Chris Lattner
1cbe5116ff
Fix the requisite bug that I introduced
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llvm-svn: 5605
2003-02-20 00:28:00 +00:00
Chris Lattner
1dc4c29b6d
Fix 80 character formatting
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llvm-svn: 5604
2003-02-20 00:18:07 +00:00
Chris Lattner
0049419836
Fix bug: 2003-02-19-LoopInfoNestingBug.ll
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llvm-svn: 5603
2003-02-20 00:17:17 +00:00
Chris Lattner
b39d6355e1
Fix resolution of indirect function calls... whoops
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llvm-svn: 5576
2003-02-14 23:27:18 +00:00
Chris Lattner
b5cbfa0f15
Mark function edges
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llvm-svn: 5571
2003-02-14 20:25:47 +00:00
Chris Lattner
8acdca64fd
- Eliminate provably non-pointer nodes from graphs.
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This helps a lot of testcases, for example:
New Time New #Nodes Old Time Old #Nodes
254.gap: 91.1024 21605 91.1397 22657
povray31: 2.7807 8613 3.0152 10338
255.vortex: 1.2034 8153 1.2172 8822
moria: .6756 3150 .7054 3877
300.twolf: .1652 2010 .1851 3270
Typically, testcases which use long and ulong integers a lot get better, f.e. povray above.
llvm-svn: 5566
2003-02-14 06:28:00 +00:00
Chris Lattner
ddd3b7fa54
Don't put integer pointers (longs) into the scalar map.
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This speeds stuff up by 10% on some tests, woot!
llvm-svn: 5564
2003-02-14 04:55:58 +00:00
Chris Lattner
3699ef409c
Hax0r around a deficiency in the Pass infrastructure
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llvm-svn: 5555
2003-02-13 21:44:18 +00:00
Chris Lattner
60ede774af
Use the new tailclip property new added to graphviz CVS to make call nodes
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actually intelligable
llvm-svn: 5554
2003-02-13 20:14:40 +00:00
Chris Lattner
a17866894a
Move node forwarding code from being inlined to being out-of-line.
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This brings a 11.6% speedup to steens, and a 3.6 overall speedup to ds-aa
llvm-svn: 5552
2003-02-13 19:09:00 +00:00
Chris Lattner
3595c3387a
Rename options
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llvm-svn: 5537
2003-02-11 23:12:09 +00:00
Chris Lattner
7127d7db7a
Implement a "union-findy" version of DS-Analysis, which eliminates the
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Referrers list on DSNodes.
llvm-svn: 5536
2003-02-11 23:11:51 +00:00
Chris Lattner
763502671d
Minor tweaks to printing. Close the file before viewing it in viewGraph
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llvm-svn: 5535
2003-02-11 19:27:27 +00:00
Chris Lattner
e715357909
Modest speedup which seems to help steens quite a bit on large graphs
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llvm-svn: 5532
2003-02-10 18:47:23 +00:00
Chris Lattner
f8292feb04
Fix problem breaking GAP, use hasNoReferrers more
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llvm-svn: 5530
2003-02-10 18:18:18 +00:00
Chris Lattner
75007f16de
Implement a new "viewGraph" method which can be used to instantly view a graph from gdb
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llvm-svn: 5528
2003-02-10 18:17:07 +00:00
Chris Lattner
b96f2123ab
Rearrange code
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llvm-svn: 5527
2003-02-10 18:16:36 +00:00
Chris Lattner
5153d44a91
Fix problem breaking Fhourstones
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llvm-svn: 5526
2003-02-10 18:16:19 +00:00
Chris Lattner
df2a78e833
Make steensgaards performance not shameful
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llvm-svn: 5524
2003-02-10 00:14:57 +00:00
Chris Lattner
43df2886c5
Don't insert null entries into the scalar map for constexpr (cast null to Ty)
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llvm-svn: 5523
2003-02-09 23:04:12 +00:00
Chris Lattner
b0208e1ae3
Allow printing of various types of alias analysis results
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llvm-svn: 5520
2003-02-09 20:40:13 +00:00
Chris Lattner
2393160bde
Implement knowledge in BasicAA that &A->field != &A and (P+1) != P
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llvm-svn: 5519
2003-02-09 19:38:11 +00:00
Chris Lattner
1fbac976b9
- Fix BasicAA to correctly detect the non-aliasness of A[1] & A[2]
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llvm-svn: 5518
2003-02-09 19:27:21 +00:00
Chris Lattner
4e0457a027
Switch to using the right call vector
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llvm-svn: 5517
2003-02-09 19:26:47 +00:00
Chris Lattner
93fdaf9cb9
Fix major bugs in incompleteness marking that were pessimizing results
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llvm-svn: 5515
2003-02-09 18:42:43 +00:00
Chris Lattner
e4059b4ed6
Print out the steens graph if -debug is specified
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llvm-svn: 5514
2003-02-09 18:42:16 +00:00
Chris Lattner
0eee7eb390
* Fix a bug where global incompleteness marking would not mark the global
...
itself incomplete!
* Allow incompleteness callers to specify they don't want globals to be
considered sources of incompleteness.
llvm-svn: 5513
2003-02-09 18:41:49 +00:00
Chris Lattner
26bd24cd81
Add a special case for main because we know it's incoming arguments don't alias
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llvm-svn: 5511
2003-02-08 23:08:02 +00:00
Chris Lattner
d73f9f55f2
Fix a bug where we would mark the callees arguments incomplete if the caller was external.
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llvm-svn: 5510
2003-02-08 23:07:39 +00:00
Chris Lattner
eadcadc54b
Fix division by zero problem
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llvm-svn: 5509
2003-02-08 23:04:50 +00:00
Chris Lattner
63ea85f089
Remove explicit result counters
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llvm-svn: 5508
2003-02-08 23:03:17 +00:00
Chris Lattner
cb7d6429fc
Add a flag which effectively disables field sensitivity
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llvm-svn: 5506
2003-02-08 20:18:39 +00:00
Chris Lattner
fdc902e6f2
Don't bother counting alias results, allow the AliasAnalysisCounter to do that.
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llvm-svn: 5505
2003-02-07 20:39:48 +00:00
Chris Lattner
9a734b6c24
Allow counting multiple passes, and print the pass name counted
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llvm-svn: 5504
2003-02-07 20:39:17 +00:00
Chris Lattner
e996681c1c
New general purpose alias analysis result auditor
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llvm-svn: 5503
2003-02-07 19:46:03 +00:00
Chris Lattner
371fd2c59b
Add a summary
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llvm-svn: 5500
2003-02-06 22:06:08 +00:00
Chris Lattner
4fdb75f223
Simple N^2 alias anlysis accuracy checker
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llvm-svn: 5498
2003-02-06 21:29:49 +00:00
Chris Lattner
f7979c2f2b
Fix an assertion failure
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llvm-svn: 5496
2003-02-06 00:15:08 +00:00
Chris Lattner
80614ee5ef
Implement optimization for direct function call case. This dramatically
...
reduces the number of function nodes created and speeds up analysis by
about 10% overall.
llvm-svn: 5495
2003-02-05 21:59:58 +00:00