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498 Commits

Author SHA1 Message Date
Chris Lattner 4f3b1d1808 Fix bug: LICM/2003-02-27-PreheaderProblem.ll 
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 
llvm-svn: 5650
 2003-02-27 00:38:34 +00:00
Chris Lattner b5b0b7a934 Make the aliassettracker much more precise by actually tracking size 
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 
llvm-svn: 5645
 2003-02-26 21:57:23 +00:00
Chris Lattner d98ac881ca Fix several bugs in basic-aa 
llvm-svn: 5643
 2003-02-26 21:28:49 +00:00
Chris Lattner dca12c77df Add new -no-aa implementation 
llvm-svn: 5641
 2003-02-26 19:57:10 +00:00
Chris Lattner d6a2a99a1b Move BasicAA pass out to it's own header file 
llvm-svn: 5640
 2003-02-26 19:41:54 +00:00
Chris Lattner e79b8319a6 Adjust to implement new AA interface 
llvm-svn: 5638
 2003-02-26 19:29:36 +00:00
Chris Lattner 13082d63dd Adjust to new AA interface 
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 
llvm-svn: 5636
 2003-02-26 19:28:57 +00:00
Chris Lattner 0edc91ff2a Calculate and pass load sizes to the alias analysis infrastructure 
llvm-svn: 5635
 2003-02-26 19:27:35 +00:00
Chris Lattner d1e3208147 Adjust to new AA interface 
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: 
* 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 
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 
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 
llvm-svn: 5605
 2003-02-20 00:28:00 +00:00
Chris Lattner 1dc4c29b6d Fix 80 character formatting 
llvm-svn: 5604
 2003-02-20 00:18:07 +00:00
Chris Lattner 0049419836 Fix bug: 2003-02-19-LoopInfoNestingBug.ll 
llvm-svn: 5603
 2003-02-20 00:17:17 +00:00
Chris Lattner b39d6355e1 Fix resolution of indirect function calls... whoops 
llvm-svn: 5576
 2003-02-14 23:27:18 +00:00
Chris Lattner b5cbfa0f15 Mark function edges 
llvm-svn: 5571
 2003-02-14 20:25:47 +00:00
Chris Lattner 8acdca64fd - Eliminate provably non-pointer nodes from graphs. 
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. 
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 
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 
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. 
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 
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 
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 
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 
llvm-svn: 5532
 2003-02-10 18:47:23 +00:00
Chris Lattner f8292feb04 Fix problem breaking GAP, use hasNoReferrers more 
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 
llvm-svn: 5528
 2003-02-10 18:17:07 +00:00
Chris Lattner b96f2123ab Rearrange code 
llvm-svn: 5527
 2003-02-10 18:16:36 +00:00
Chris Lattner 5153d44a91 Fix problem breaking Fhourstones 
llvm-svn: 5526
 2003-02-10 18:16:19 +00:00
Chris Lattner df2a78e833 Make steensgaards performance not shameful 
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) 
llvm-svn: 5523
 2003-02-09 23:04:12 +00:00
Chris Lattner b0208e1ae3 Allow printing of various types of alias analysis results 
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 
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] 
llvm-svn: 5518
 2003-02-09 19:27:21 +00:00
Chris Lattner 4e0457a027 Switch to using the right call vector 
llvm-svn: 5517
 2003-02-09 19:26:47 +00:00
Chris Lattner 93fdaf9cb9 Fix major bugs in incompleteness marking that were pessimizing results 
llvm-svn: 5515
 2003-02-09 18:42:43 +00:00
Chris Lattner e4059b4ed6 Print out the steens graph if -debug is specified 
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 
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. 
llvm-svn: 5510
 2003-02-08 23:07:39 +00:00
Chris Lattner eadcadc54b Fix division by zero problem 
llvm-svn: 5509
 2003-02-08 23:04:50 +00:00
Chris Lattner 63ea85f089 Remove explicit result counters 
llvm-svn: 5508
 2003-02-08 23:03:17 +00:00
Chris Lattner cb7d6429fc Add a flag which effectively disables field sensitivity 
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. 
llvm-svn: 5505
 2003-02-07 20:39:48 +00:00
Chris Lattner 9a734b6c24 Allow counting multiple passes, and print the pass name counted 
llvm-svn: 5504
 2003-02-07 20:39:17 +00:00
Chris Lattner e996681c1c New general purpose alias analysis result auditor 
llvm-svn: 5503
 2003-02-07 19:46:03 +00:00