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209 Commits

Author SHA1 Message Date
Chris Lattner
fa52af4fb0 Be more const-correct 
llvm-svn: 7005
 2003-06-30 05:27:18 +00:00
Chris Lattner
0929c5ef68 Fix bug in last checkin 
llvm-svn: 7003
 2003-06-30 05:18:26 +00:00
Chris Lattner
348d93c8c2 Handle the case where OldNodeMap == &ScalarMap correctly 
llvm-svn: 7000
 2003-06-30 05:09:29 +00:00
Chris Lattner
6d187fdc5a Move usages of explicit hash_* datastructures to use typedefs 
llvm-svn: 6996
 2003-06-30 03:36:09 +00:00
Chris Lattner
63aeacfe3d Revamp DSGraphs so that they can support multiple functions in the same 
DSGraph at one time

llvm-svn: 6994
 2003-06-30 03:15:25 +00:00
Chris Lattner
205d1acfba Fix minor bug in previous checkin 
llvm-svn: 6986
 2003-06-29 22:36:31 +00:00
Chris Lattner
16e3c398c8 Add support for "physical subtyping", which fixes: 
DSGraph/2003-06-29-NodeCollapsing2.ll & DSGraph/PhysicalSubtyping.ll

llvm-svn: 6982
 2003-06-29 20:27:45 +00:00
Chris Lattner
856a6cbb80 Avoid double negatives 
llvm-svn: 6945
 2003-06-28 21:58:28 +00:00
Chris Lattner
d791d8e427 Remove support for the MultiObject flag, which was fundamentally broken 
llvm-svn: 6840
 2003-06-22 03:03:52 +00:00
Chris Lattner
4853d162af * Changes to make NodeType be private to DSNode. 
* 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
82f4f85f6d Remove bogus assertion: a node with no referrers could be collapsed if field-sensitivity was disabled 
llvm-svn: 6695
 2003-06-16 12:07:39 +00:00
Misha Brukman
e5838c4d72 s/convertable/convertible/g 
llvm-svn: 6248
 2003-05-20 18:45:36 +00:00
Chris Lattner
c12e5ccdb5 Don't apply type information to load instructions if it will cause collapsing 
llvm-svn: 5684
 2003-03-03 17:13:31 +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
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
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
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
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
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
f7979c2f2b Fix an assertion failure 
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
Chris Lattner
a0e9e6ec8c Add sanity check 
llvm-svn: 5489
 2003-02-04 00:03:57 +00:00
Chris Lattner
1d3922ac0b * Fix a bug introduced in the last checkin wrt Stack markers 
* Make cloning more efficient in the process...

llvm-svn: 5479
 2003-02-03 20:08:51 +00:00
Chris Lattner
8bb9513bd8 Implement the globals graph! 
llvm-svn: 5477
 2003-02-03 19:12:15 +00:00
Chris Lattner
9e75f38bb9 Fix a bug where we would delete neccesary calls in bu pass 
llvm-svn: 5465
 2003-02-01 06:54:31 +00:00
Chris Lattner
5965bbb02f Fix a bug where we would incorrectly delete globals which had edges to alive nodes in 
a graph in the t-d pass.  This slows down the TD pass by quite a bit (1/3), but is
needed for correctness.

llvm-svn: 5464
 2003-02-01 06:51:17 +00:00
Chris Lattner
c154bdcd4c Delete nodes more efficiently 
llvm-svn: 5463
 2003-02-01 06:41:15 +00:00
Chris Lattner
71449ba556 Remove dead nodes more efficiently 
llvm-svn: 5462
 2003-02-01 06:23:33 +00:00
Chris Lattner
4f276cc4dd Improve efficiency of aliveness traversal code 
llvm-svn: 5461
 2003-02-01 06:17:02 +00:00
Chris Lattner
c44c04af44 Change DSGraph stuff to use hash_(set|map) instead of std::(set|map) 
This change provides a small (3%) but consistent speedup

llvm-svn: 5460
 2003-02-01 04:52:08 +00:00
Chris Lattner
ee97c8b08a Remove using declarations 
llvm-svn: 5456
 2003-02-01 04:01:21 +00:00
Chris Lattner
87d76c7f01 Remove globals on the bottom up pass which do not contain any information 
llvm-svn: 5451
 2003-01-31 23:57:36 +00:00
Chris Lattner
c5497c816f Use and implement API for graph traversals 
llvm-svn: 5431
 2003-01-29 21:10:20 +00:00
Chris Lattner
a1d9011d6e * Eliminate boolean arguments in favor of using enums 
* T-D pass now eliminates unreachable globals

llvm-svn: 5419
 2003-01-23 22:05:33 +00:00
Chris Lattner
2d4945580f Fix analysis of the Burg program 
llvm-svn: 5401
 2003-01-22 22:00:24 +00:00
Vikram S. Adve
0d5559fdfb Fix several related bugs in DSNode::mergeWith() caused by the 
fact that the incoming nodes may be merged away at intermediate
steps.  Use an extra level of indirection via DSNodeHandles
to track the nodes being merged.  All this now happens in a
static helper function MergeNodes().

llvm-svn: 4947
 2002-12-06 21:15:21 +00:00
Vikram S. Adve
bfff743897 Cute bug fix: when moving links from N to this, some links could have 
been missed if node *this got merged away due to recursive merging!
Also, links were not moved correctly if a node is collapsed.

llvm-svn: 4933
 2002-12-05 17:17:26 +00:00
Vikram S. Adve
2d2303db22 Fix logical error in TD pass: we should clear Mod/Ref bits of each caller 
before inlining their graphs into a function.  To support this,
added flags to CloneFlags to strip/keep Mod/Ref bits.

llvm-svn: 4836
 2002-11-27 17:41:13 +00:00
Vikram S. Adve
68690673ad Keep global nodes in each DS Graph (by forcing them to be marked live). 
llvm-svn: 4831
 2002-11-25 18:21:25 +00:00
Chris Lattner
79d943eb67 Add peak memory usage measurement stuff 
Add structure padding optimizations

llvm-svn: 4749
 2002-11-18 21:44:46 +00:00
Chris Lattner
dcb4ac9594 Fix two bugs: 
* The globals vector was getting broken and unsorted, this caused vortex
   to get badly pessimized
 * Node offset handling was being handled really poorly, and in particular
   we were not merging types with offsets right.  This causes several graphs
   to be non-merged.

llvm-svn: 4699
 2002-11-12 07:20:45 +00:00
Chris Lattner
8aed9820e2 Elimiante calls to a node with nothing in it. 
llvm-svn: 4695
 2002-11-11 21:35:38 +00:00
Chris Lattner
dd3dd4abeb Mark stuff reachable by _AUX_ calls as incomplete in the BU graph 
llvm-svn: 4690
 2002-11-11 03:36:55 +00:00
Chris Lattner
6fa9a7f7f4 Use call site mergeWith method to simplify code 
llvm-svn: 4687
 2002-11-11 00:00:46 +00:00
Chris Lattner
d7f9f635ec Fix a bug that could trigger when varargs call sites had non-matching number of arguments 
llvm-svn: 4683
 2002-11-10 07:46:08 +00:00
Chris Lattner
7b61563d99 * Dramatically rework liveness evaluation. 
* Implement the first step of the Globals graph: Deleting nodes from function
  graphs.  In practice, these nodes need to be moved to the globals graph, but
  this will be taken care of later.  Note that the graphs computed right now are
  not strictly correct!

llvm-svn: 4681
 2002-11-10 06:59:55 +00:00
Chris Lattner
715a3a3b5c eliminate the ability to remove global nodes from deadNodeElminate... for now. 
This slows stuff down a bit, but it should get much better before it gets any
worse.

llvm-svn: 4666
 2002-11-09 22:07:02 +00:00
Chris Lattner
0de21ea32d Move maskNodeTypes to header file 
llvm-svn: 4661
 2002-11-09 21:02:26 +00:00