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
ddd3b7fa54
Don't put integer pointers (longs) into the scalar map.
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This speeds stuff up by 10% on some tests, woot!
llvm-svn: 5564
2003-02-14 04:55:58 +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
43df2886c5
Don't insert null entries into the scalar map for constexpr (cast null to Ty)
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llvm-svn: 5523
2003-02-09 23:04:12 +00:00
cb7d6429fc
Add a flag which effectively disables field sensitivity
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llvm-svn: 5506
2003-02-08 20:18:39 +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
04fb4b5808
Fix a huge bug with handling non-pointer instructions
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llvm-svn: 5491
2003-02-04 00:59:50 +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
362dab3705
free instructions mark their operands as being heap nodes.
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llvm-svn: 5425
2003-01-28 20:59:57 +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
98034fa407
Slight efficiency improvement
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llvm-svn: 5418
2003-01-23 21:31:16 +00:00
04aee9478c
Two bug fixes:
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(1) Make entries for Constant values in the ScalarMap.
(2) Set MOD bit for the node pointed to by the
argument of a free instruction.
llvm-svn: 4948
2002-12-06 21:17:10 +00:00
63a9e5c068
Add peak memory usage support
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llvm-svn: 4748
2002-11-18 21:44:19 +00:00
17da287408
Initialize PrintAuxCalls member
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llvm-svn: 4677
2002-11-10 06:53:38 +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
4b1be35569
Add globals graphs to all three passes
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llvm-svn: 4663
2002-11-09 21:12:07 +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
2dd1adafa6
Don't put constants into the scalar map!
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llvm-svn: 4657
2002-11-09 20:14:03 +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
bcc12023ce
#include Datastructure.h first
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llvm-svn: 4654
2002-11-09 19:25:10 +00:00
5e730ed972
* actually handle constants (especially constantexprs) correctly.
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- This seems to dramatically improve many benchmarks, only slowing down
gzip significantly.
llvm-svn: 4621
2002-11-08 05:00:44 +00:00
ca03c3b516
Rename DataStructureAnalysis namespace to DS
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llvm-svn: 4596
2002-11-07 05:20:53 +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
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
63ba1aca7c
Implement the "unknown flag" which mainly consists of aligning printing code
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llvm-svn: 4490
2002-11-02 00:36:03 +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
5d428a0029
Remove dead code
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llvm-svn: 4467
2002-10-31 06:52:26 +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
32438d8c84
Don't create a new node for every reference to a global. This caused a huge
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node explosion that doesn't help anything at all. In previous versions of
the representation this DID help, but not anymore.
llvm-svn: 4249
2002-10-21 13:51:30 +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
faa756ecee
Avoid extra copy
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llvm-svn: 4239
2002-10-20 22:12:06 +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
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
b4e800aabf
Calculate mod/ref info
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llvm-svn: 4223
2002-10-17 22:13:19 +00:00
3f69054dd5
DataStructure.h doesn't include DSGraph.h
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llvm-svn: 4029
2002-10-02 22:14:38 +00:00
c4d2ad21bf
* Implement fully general merging of array subscripts on demand! This
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does not handle the initial pointer index case yet though.
llvm-svn: 4012
2002-10-02 06:24:36 +00:00
193e6924ca
Checkin some major reworks of data structure analysis. This is not done,
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nor does it work very well, but I need to get it checked in before I break
the tree unintentionally.
llvm-svn: 3996
2002-10-01 22:33:50 +00:00
02fe752fbd
Eliminated the MemAccessInst class, folding contents into GEP class.
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llvm-svn: 3488
2002-08-22 23:37:24 +00:00
cd709cbf53
Load & StoreInst no longer derive from MemAccessInst, so we don't have
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to handle indexing anymore
llvm-svn: 3485
2002-08-22 22:49:05 +00:00
c869ecbe42
- Do not expose ::ID from any of the analyses anymore.
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llvm-svn: 3416
2002-08-21 17:09:45 +00:00
b82a496132
Add GlobalDSGraph -- a common graph that holds externally visible nodes.
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llvm-svn: 3173
2002-07-30 22:08:08 +00:00
96a0dfa33e
* Standardize how analysis results/passes as printed with the print() virtual
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methods
* Eliminate AnalysisID: Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
the analyses themselves.
llvm-svn: 3115
2002-07-27 01:12:15 +00:00
aaf425bb4d
Always create a shadow node for a store instruction, even if it's storing
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a scalar value. Likewise for load instructions.
llvm-svn: 2990
2002-07-22 16:35:53 +00:00
4f99733c8c
Rename removeDeadNodes to removeTriviallyDeadNodes
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llvm-svn: 2969
2002-07-18 18:19:09 +00:00
db7a680aec
Implement cast nodes correctly.
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llvm-svn: 2964
2002-07-18 15:54:42 +00:00
4c0d620a82
Lots of bug fixes, add BottomUpClosure, which has bugs, but is a start.
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llvm-svn: 2945
2002-07-18 00:12:30 +00:00
Chris Lattner