Chris Lattner
6deb20046e
Compute node offsets correctly
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llvm-svn: 9895
2003-11-11 20:12:32 +00:00
Chris Lattner
365bda897c
Add new method for computing node mappings. This is used by the pool allocator
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llvm-svn: 9880
2003-11-11 05:08:59 +00:00
Chris Lattner
a71b07eeca
All DSGraphs keep a reference to the targetdata they are created with. This is
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used to eliminate the hard coded, hacked in, sparc specific, global TargetData.
Changing the TargetData used to actually match the code fixes problems, and
eliminates a crash.
llvm-svn: 9659
2003-11-02 22:27:28 +00:00
Chris Lattner
63fb5bcaac
Fix bug: test/Regression/Analysis/DSGraph/2003-11-02-NodeCollapsing.ll
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llvm-svn: 9658
2003-11-02 21:02:20 +00:00
John Criswell
b402729b30
Added LLVM project notice to the top of every C++ source file.
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Header files will be on the way.
llvm-svn: 9298
2003-10-20 19:43:21 +00:00
Chris Lattner
f203e908e3
Remove trivially dead nodes was not removing nodes that were dead due to forwarding!
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llvm-svn: 8634
2003-09-20 21:34:07 +00:00
Chris Lattner
b12a8a6177
Switch from using CallInst's to represent call sites to using the LLVM
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CallSite class. Now we can represent function calls by invoke instructions
too!
llvm-svn: 8629
2003-09-20 16:34:13 +00:00
Misha Brukman
b9a4ddbfc5
Fixed spelling and grammar.
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llvm-svn: 8478
2003-09-11 18:14:24 +00:00
Chris Lattner
e2ee62c91c
Add more verbose comment
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llvm-svn: 7610
2003-08-05 18:38:37 +00:00
Sumant Kowshik
1a4fce3511
Added function mergeInGlobalsGraph which merges in the entire globals graph with the graph of a function
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llvm-svn: 7606
2003-08-05 17:04:41 +00:00
Chris Lattner
686e94e760
DEBUG got moved to Support/Debug.h
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llvm-svn: 7492
2003-08-01 22:15:03 +00:00
Vikram S. Adve
420ec0bb0f
Fix comment.
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llvm-svn: 7227
2003-07-22 12:08:58 +00:00
Vikram S. Adve
d1a85b7860
Implement 2 important changes: (1) rematerialization from the globals graph,
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and (2) faster inlining by cloning only reachable nodes. In particular:
(1) Added DSGraph::cloneReachableSubgraph and DSGraph::cloneReachableNodes
to clone the subgraph reachable from a set of root nodes, into the
current graph, merging the global nodes into thos in the current graph.
The TD pass now uses this for faster inlining, and so does the
next function.
(2) Added DSGraph::updateFromGlobalGraph() to rematerialize nodes from the
globals graph into the current graph in both BU and TD passes.
(3) `I' flags are removed from all nodes in the globals graph, because they
are difficult to maintain correctly and are not needed anyway.
(4) Aux. function calls are only removed to the globals graph if they
will never be resovled. (This is what fixed gap.) The immediate
reason is that if we took these out of a function (and moved them to
the globals graph) we would need to rematerialize these nodes into the
function graph for every function in the BU pass. The longer term
problem is that we would need to find a way to remove them from the
globals graph iff they have been resolved on all paths through the
call graph.
llvm-svn: 7187
2003-07-16 21:36:31 +00:00
Chris Lattner
2a6504c799
Remove globals more aggressively from graphs.
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Fix a bug where we removed nodes that were marked U.
llvm-svn: 7090
2003-07-03 02:03:53 +00:00
Chris Lattner
492b7eeb06
INCLUDE_PARENT_GRAPH is required!
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llvm-svn: 7088
2003-07-02 23:57:05 +00:00
Chris Lattner
f4a221c87c
Add support for ParentGraph only when building in debug mode
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Minor cleanups, reenable folding of call nodes to external functions
llvm-svn: 7061
2003-07-02 04:38:49 +00:00
Chris Lattner
5ddec0f02d
Rework TD pass to work with the precise call graph constructed by the BU phase
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llvm-svn: 7031
2003-07-01 16:28:11 +00:00
Chris Lattner
cb32be085b
Add new method
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llvm-svn: 7007
2003-06-30 05:57:30 +00:00
Chris Lattner
e40d871120
Be more const-correct
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llvm-svn: 7005
2003-06-30 05:27:18 +00:00
Chris Lattner
fb9f50ee23
Fix bug in last checkin
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llvm-svn: 7003
2003-06-30 05:18:26 +00:00
Chris Lattner
60b2516889
Handle the case where OldNodeMap == &ScalarMap correctly
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llvm-svn: 7000
2003-06-30 05:09:29 +00:00
Chris Lattner
8574358e8a
Move usages of explicit hash_* datastructures to use typedefs
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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
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DSGraph at one time
llvm-svn: 6994
2003-06-30 03:15:25 +00:00
Chris Lattner
9cb6f34b81
Fix minor bug in previous checkin
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llvm-svn: 6986
2003-06-29 22:36:31 +00:00
Chris Lattner
94b29bf96d
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
5f90382628
Avoid double negatives
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llvm-svn: 6945
2003-06-28 21:58:28 +00:00
Chris Lattner
0a0266865a
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
365e583866
* 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
e718da0d46
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
Misha Brukman
74cf3f5246
s/convertable/convertible/g
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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
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llvm-svn: 5684
2003-03-03 17:13:31 +00:00
Chris Lattner
148d67f088
Fix resolution of indirect function calls... whoops
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llvm-svn: 5576
2003-02-14 23:27:18 +00:00
Chris Lattner
00fe161e49
- 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
120d135f05
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
522cb6d282
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
de261140d0
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
8d025d56d6
Fix problem breaking GAP, use hasNoReferrers more
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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
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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
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llvm-svn: 5511
2003-02-08 23:08:02 +00:00
Chris Lattner
21e1033bff
Fix an assertion failure
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llvm-svn: 5496
2003-02-06 00:15:08 +00:00
Chris Lattner
5f3ef2f0e7
Implement optimization for direct function call case. This dramatically
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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
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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
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* 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!
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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
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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
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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
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llvm-svn: 5463
2003-02-01 06:41:15 +00:00
Chris Lattner
bbd430c392
Remove dead nodes more efficiently
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llvm-svn: 5462
2003-02-01 06:23:33 +00:00
Chris Lattner
8bb8f73e76
Improve efficiency of aliveness traversal code
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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)
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This change provides a small (3%) but consistent speedup
llvm-svn: 5460
2003-02-01 04:52:08 +00:00