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Commit Graph

108 Commits

Author SHA1 Message Date
Chris Lattner
fb9f50ee23 Fix bug in last checkin
llvm-svn: 7003
2003-06-30 05:18:26 +00:00
Chris Lattner
60b2516889 Handle the case where OldNodeMap == &ScalarMap correctly
llvm-svn: 7000
2003-06-30 05:09:29 +00:00
Chris Lattner
8574358e8a Move usages of explicit hash_* datastructures to use typedefs
llvm-svn: 6996
2003-06-30 03:36:09 +00:00
Chris Lattner
203826c2e1 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
9cb6f34b81 Fix minor bug in previous checkin
llvm-svn: 6986
2003-06-29 22:36:31 +00:00
Chris Lattner
94b29bf96d 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
5f90382628 Avoid double negatives
llvm-svn: 6945
2003-06-28 21:58:28 +00:00
Chris Lattner
0a0266865a Remove support for the MultiObject flag, which was fundamentally broken
llvm-svn: 6840
2003-06-22 03:03:52 +00:00
Chris Lattner
365e583866 * 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
e718da0d46 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
74cf3f5246 s/convertable/convertible/g
llvm-svn: 6248
2003-05-20 18:45:36 +00:00
Chris Lattner
1778154dc7 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
148d67f088 Fix resolution of indirect function calls... whoops
llvm-svn: 5576
2003-02-14 23:27:18 +00:00
Chris Lattner
00fe161e49 - 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
120d135f05 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
522cb6d282 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
de261140d0 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
8d025d56d6 Fix problem breaking GAP, use hasNoReferrers more
llvm-svn: 5530
2003-02-10 18:18:18 +00:00
Chris Lattner
5da09703fa * 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
8711f611fa 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
21e1033bff Fix an assertion failure
llvm-svn: 5496
2003-02-06 00:15:08 +00:00
Chris Lattner
5f3ef2f0e7 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
e8381114ef Add sanity check
llvm-svn: 5489
2003-02-04 00:03:57 +00:00
Chris Lattner
2ce14e226e * 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
5d14f5d9ac Implement the globals graph!
llvm-svn: 5477
2003-02-03 19:12:15 +00:00
Chris Lattner
acc67b5d1d 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
d946a6a307 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
4f56dfb8d8 Delete nodes more efficiently
llvm-svn: 5463
2003-02-01 06:41:15 +00:00
Chris Lattner
bbd430c392 Remove dead nodes more efficiently
llvm-svn: 5462
2003-02-01 06:23:33 +00:00
Chris Lattner
8bb8f73e76 Improve efficiency of aliveness traversal code
llvm-svn: 5461
2003-02-01 06:17:02 +00:00
Chris Lattner
7aec6c471b 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
6051f888b4 Remove using declarations
llvm-svn: 5456
2003-02-01 04:01:21 +00:00
Chris Lattner
c3e8b48d5e 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
91e3c1eeac Use and implement API for graph traversals
llvm-svn: 5431
2003-01-29 21:10:20 +00:00
Chris Lattner
f1afc156f8 * 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
bd72aa79fc Fix analysis of the Burg program
llvm-svn: 5401
2003-01-22 22:00:24 +00:00
Vikram S. Adve
cb7daf77e8 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
ab3a68a7c3 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
b0371788d9 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
7bbda247e2 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
ad3955d6a5 Add peak memory usage measurement stuff
Add structure padding optimizations

llvm-svn: 4749
2002-11-18 21:44:46 +00:00
Chris Lattner
cd37857ad0 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
6fcb6f1472 Elimiante calls to a node with nothing in it.
llvm-svn: 4695
2002-11-11 21:35:38 +00:00
Chris Lattner
fb44e1ff28 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
41bf6e1bc6 Use call site mergeWith method to simplify code
llvm-svn: 4687
2002-11-11 00:00:46 +00:00
Chris Lattner
0fe1af497d 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
928e9c012b * 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
1fe76d2385 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
f6ea37ce99 Move maskNodeTypes to header file
llvm-svn: 4661
2002-11-09 21:02:26 +00:00
Chris Lattner
e726eb5ea7 Clean up DSGraph::removeDeadNodes interface
llvm-svn: 4660
2002-11-09 21:00:49 +00:00