482202a601
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
cc81b798e4
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
04d9cb6770
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
329983228f
Fixed spelling and grammar.
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llvm-svn: 8478
2003-09-11 18:14:24 +00:00
61182a2021
Add more verbose comment
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llvm-svn: 7610
2003-08-05 18:38:37 +00:00
1d869b78f5
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
8abcd56c74
DEBUG got moved to Support/Debug.h
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llvm-svn: 7492
2003-08-01 22:15:03 +00:00
eb04c29378
Fix comment.
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llvm-svn: 7227
2003-07-22 12:08:58 +00:00
dce6694ff4
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
117da20334
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
c812e5f44e
INCLUDE_PARENT_GRAPH is required!
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llvm-svn: 7088
2003-07-02 23:57:05 +00:00
03f3cb1af7
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
23428214e9
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
bfce1115e3
Add new method
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llvm-svn: 7007
2003-06-30 05:57:30 +00:00
fa52af4fb0
Be more const-correct
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llvm-svn: 7005
2003-06-30 05:27:18 +00:00
0929c5ef68
Fix bug in last checkin
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llvm-svn: 7003
2003-06-30 05:18:26 +00:00
348d93c8c2
Handle the case where OldNodeMap == &ScalarMap correctly
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llvm-svn: 7000
2003-06-30 05:09:29 +00:00
6d187fdc5a
Move usages of explicit hash_* datastructures to use typedefs
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llvm-svn: 6996
2003-06-30 03:36:09 +00:00
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
205d1acfba
Fix minor bug in previous checkin
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llvm-svn: 6986
2003-06-29 22:36:31 +00:00
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
856a6cbb80
Avoid double negatives
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llvm-svn: 6945
2003-06-28 21:58:28 +00:00
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
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
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
e5838c4d72
s/convertable/convertible/g
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llvm-svn: 6248
2003-05-20 18:45:36 +00:00
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
b39d6355e1
Fix resolution of indirect function calls... whoops
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llvm-svn: 5576
2003-02-14 23:27:18 +00:00
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
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
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
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
f8292feb04
Fix problem breaking GAP, use hasNoReferrers more
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llvm-svn: 5530
2003-02-10 18:18:18 +00:00
0eee7eb390
* 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
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
f7979c2f2b
Fix an assertion failure
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llvm-svn: 5496
2003-02-06 00:15:08 +00:00
80614ee5ef
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
a0e9e6ec8c
Add sanity check
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llvm-svn: 5489
2003-02-04 00:03:57 +00:00
1d3922ac0b
* 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
8bb9513bd8
Implement the globals graph!
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llvm-svn: 5477
2003-02-03 19:12:15 +00:00
9e75f38bb9
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
5965bbb02f
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
c154bdcd4c
Delete nodes more efficiently
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llvm-svn: 5463
2003-02-01 06:41:15 +00:00
71449ba556
Remove dead nodes more efficiently
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llvm-svn: 5462
2003-02-01 06:23:33 +00:00
4f276cc4dd
Improve efficiency of aliveness traversal code
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llvm-svn: 5461
2003-02-01 06:17:02 +00:00
c44c04af44
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
ee97c8b08a
Remove using declarations
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llvm-svn: 5456
2003-02-01 04:01:21 +00:00
87d76c7f01
Remove globals on the bottom up pass which do not contain any information
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llvm-svn: 5451
2003-01-31 23:57:36 +00:00
c5497c816f
Use and implement API for graph traversals
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llvm-svn: 5431
2003-01-29 21:10:20 +00:00
a1d9011d6e
* Eliminate boolean arguments in favor of using enums
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* T-D pass now eliminates unreachable globals
llvm-svn: 5419
2003-01-23 22:05:33 +00:00
2d4945580f
Fix analysis of the Burg program
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llvm-svn: 5401
2003-01-22 22:00:24 +00:00
0d5559fdfb
Fix several related bugs in DSNode::mergeWith() caused by the
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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
bfff743897
Cute bug fix: when moving links from N to this, some links could have
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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
2d2303db22
Fix logical error in TD pass: we should clear Mod/Ref bits of each caller
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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
68690673ad
Keep global nodes in each DS Graph (by forcing them to be marked live).
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llvm-svn: 4831
2002-11-25 18:21:25 +00:00
79d943eb67
Add peak memory usage measurement stuff
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Add structure padding optimizations
llvm-svn: 4749
2002-11-18 21:44:46 +00:00
dcb4ac9594
Fix two bugs:
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* 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
8aed9820e2
Elimiante calls to a node with nothing in it.
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llvm-svn: 4695
2002-11-11 21:35:38 +00:00
dd3dd4abeb
Mark stuff reachable by _AUX_ calls as incomplete in the BU graph
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llvm-svn: 4690
2002-11-11 03:36:55 +00:00
6fa9a7f7f4
Use call site mergeWith method to simplify code
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llvm-svn: 4687
2002-11-11 00:00:46 +00:00
d7f9f635ec
Fix a bug that could trigger when varargs call sites had non-matching number of arguments
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llvm-svn: 4683
2002-11-10 07:46:08 +00:00
7b61563d99
* Dramatically rework liveness evaluation.
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* 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
715a3a3b5c
eliminate the ability to remove global nodes from deadNodeElminate... for now.
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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
0de21ea32d
Move maskNodeTypes to header file
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llvm-svn: 4661
2002-11-09 21:02:26 +00:00
380d1ad4ab
Clean up DSGraph::removeDeadNodes interface
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llvm-svn: 4660
2002-11-09 21:00:49 +00:00
e703c52b20
Make removeTriviallyDeadNodes a private interface of DSGraph
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llvm-svn: 4659
2002-11-09 20:55:24 +00:00
e742f31e0c
Add initial support for a globals graph
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llvm-svn: 4656
2002-11-09 20:01:01 +00:00
5737a600d7
Tighten up array handling
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llvm-svn: 4655
2002-11-09 19:25:27 +00:00
63aeefeafb
Fix warning & release build
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llvm-svn: 4648
2002-11-09 00:49:05 +00:00
be46569ba1
Fold arrays down to a single element. This causes huge wins on some benchmarks
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for example: 197.parser (64M->14M), 164.gzip (14M->2.7M). The actual graphs
represented should not change at all.
llvm-svn: 4643
2002-11-08 22:49:57 +00:00
56363a05e6
Allow specification of whether the call sites should be copied, AND whether
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the aux call sites should be copied
llvm-svn: 4639
2002-11-08 22:27:09 +00:00
c20122732e
- Add a bunch of checking to make sure that dead nodes are not used after they
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are marked DEAD. This helped track down some bugs
- Fix a bunch of bugs where we were doing work on nodes after they became dead
- Add support for aux function call sites
- Add support for not cloning call sites
llvm-svn: 4633
2002-11-08 21:27:12 +00:00
a075a5801b
Use DSNodeHandleMap instead to be safe
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llvm-svn: 4622
2002-11-08 05:01:14 +00:00
b0c9b37048
Add flush
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llvm-svn: 4619
2002-11-08 01:21:07 +00:00
5e865cdbe2
Instead of using a bool that constant has to be explained, use a self
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explanitory enum instead.
llvm-svn: 4600
2002-11-07 07:06:20 +00:00
df307e6fd0
Implement a new mergeInGraph method, which basically factors code out of
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the BU class.
This will be used by the IPModRef class to do stuff, eventually perhaps the
TD pass will use it also.
Speaking of the TD pass, this also eliminates the self recursive case, which
was broken, and couldn't occur anyway.
llvm-svn: 4599
2002-11-07 06:31:54 +00:00
ca03c3b516
Rename DataStructureAnalysis namespace to DS
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llvm-svn: 4596
2002-11-07 05:20:53 +00:00
f9d29b3299
Minor bugfix to enable generation of methcall.llvm.lib, objinst.llvm.lib, and
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The problem was merging two unsized types like function's, ie int (int*) with
int (uint *)
llvm-svn: 4594
2002-11-07 04:59:28 +00:00
4f8e2acaa2
Move printouts to be wrapped in DEBUG() macros
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llvm-svn: 4588
2002-11-07 01:54:56 +00:00
2b79f4b7c3
Make PointerSize & Shift be enums
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Fix problem with recursive merging
llvm-svn: 4570
2002-11-06 18:01:39 +00:00
48e37d9b97
Dramatically simplify internal DSNode representation, get implementation
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*FULLY OPERATIONAL* and safe. We are now capable of completely analyzing
at LEAST the Olden benchmarks + 181.mcf
llvm-svn: 4562
2002-11-06 06:20:27 +00:00
6c213d673b
Attempted fixes to the mergemap to make it work better.
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Ended up disabling merge map merging completely. It shall be removed.
llvm-svn: 4550
2002-11-05 00:01:58 +00:00
7e8b76009f
Change the "Cannot merge two portions of the same node yet" from an assertion
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into a "oh crap, lets collapse" case
llvm-svn: 4530
2002-11-04 06:48:26 +00:00
a20fabc7ec
Rename ValueMap to ScalarMap
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llvm-svn: 4516
2002-11-03 21:27:48 +00:00
bd7af8e664
Rename NewNode flag to HeapNode
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llvm-svn: 4515
2002-11-03 21:24:04 +00:00
a7b0d4eb08
Stop representing scalars as explicit nodes in the graph. Now the only
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nodes in the graph are memory objects, which is very nice. This also greatly
reduces the size and memory footprint for DSGraphs. For example, the local
DSGraph for llu went from 65 to 13 nodes with this change. As a side bonus,
dot seems to lay out the graphs slightly better too. :)
llvm-svn: 4488
2002-11-02 00:13:20 +00:00
c1d8820711
* Minor optimization: when merging nodes, merge the smaller one into the
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larger one.
* Handle the case where we are merging two nodes of different size better.
llvm-svn: 4476
2002-10-31 22:41:15 +00:00
7d5f19886d
This fixes all kinds of problems with array handling. There are still bugs to
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be fixed, but we are getting much closer now.
* Make DSNode::TypeRec a full fledged DSTypeRec type.
* Add methods used to update and access the typerecords elements
* Add methods to query if and to cause a node to be completely folded
* DSGraph construction doesn't use the allocation type for anything at all,
now nodes get their type information based on how they are used.
* Fixed a bug with global value handling introduced in the last checkin
* GEP support is now much better, arrays are handled correctly. The array
flag is now updated in type records. There are still cases that are not
handled yet (we do not detect pessimizations), but getting much closer.
llvm-svn: 4465
2002-10-31 05:45:02 +00:00
155fffd350
Delete unused arguments to DSGraph::cloneInto method
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llvm-svn: 4253
2002-10-21 19:50:29 +00:00
c6191df9af
Add another copy ctor form
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llvm-svn: 4251
2002-10-21 15:32:34 +00:00
78c1e7d83c
As it turns out, we don't need a fully generic mapping copy ctor, we just need
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something that maps through a std::map. Since this simplified the client and
implementation code, do so now.
llvm-svn: 4250
2002-10-21 15:04:18 +00:00
2f5a6d46ae
Remove some unneccesary 'using' directives
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llvm-svn: 4246
2002-10-21 13:31:48 +00:00
80e1a74820
Fix bug with prior checkin
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llvm-svn: 4242
2002-10-21 02:18:55 +00:00
5c3ce31e1f
- Make DSCallSite not inherit from std::vector. Renamed methods slightly.
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Make copy ctor have two versions to avoid dealing with conditional template
argument. DSCallSite ctor now takes all arguments instead of taking one
and being populated later.
llvm-svn: 4240
2002-10-21 02:08:03 +00:00
3af17ce2cf
Simplify code a bit, add comment flyer
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llvm-svn: 4238
2002-10-20 22:11:44 +00:00
e85319693e
Remove spurious caller pointer in DSCallSite.
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Also add functions to access pointer argument nodes cleanly.
llvm-svn: 4235
2002-10-20 21:41:02 +00:00
c94855e46b
This function can be static
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llvm-svn: 4234
2002-10-20 20:39:31 +00:00
dc9e142686
Added a first-class representation for each call site that can be
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used in the DS graphs. Essentially, what was vector<DSNodeHandle>
before is now a DSCallSite with the same vector, plus pointers to the
CallInst and the caller Function. The special-purpose class
BUDataStructure::CallSite is no longer needed.
llvm-svn: 4228
2002-10-20 18:07:37 +00:00
f931f6b5c7
Convert typerec to be a structure instead of a pair
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llvm-svn: 4226
2002-10-18 18:22:46 +00:00
b182216df8
* Make the DSGraph cloner automatically merge global nodes
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* BUClosure doesn't have to worry about global nodes
* TDClosure now works with global nodes
* Reenable DNE on TD pass, now that globals work right
llvm-svn: 4220
2002-10-17 20:09:52 +00:00
John Criswell