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669 Commits

Author SHA1 Message Date
Chris Lattner
59bb44723a Try using trivially dead deletion 
llvm-svn: 7075
 2003-07-02 19:49:11 +00:00
Chris Lattner
c1f922d61e Remove dead Nodes list 
llvm-svn: 7065
 2003-07-02 06:06:34 +00:00
Chris Lattner
56585a82d9 Complete rewrite of td pass 
llvm-svn: 7064
 2003-07-02 04:39:44 +00:00
Chris Lattner
a85502303e Print collapsed to match the paper 
llvm-svn: 7063
 2003-07-02 04:39:27 +00:00
Chris Lattner
95c5313776 Reduce amount of work we do calculating mustaliases if the arg is a global 
llvm-svn: 7062
 2003-07-02 04:39:13 +00:00
Chris Lattner
f4a221c87c Add support for ParentGraph only when building in debug mode 
Minor cleanups, reenable folding of call nodes to external functions

llvm-svn: 7061
 2003-07-02 04:38:49 +00:00
Chris Lattner
d49611837b Add some functions to the blacklist 
llvm-svn: 7060
 2003-07-02 04:38:00 +00:00
Chris Lattner
64ea02737e Make the BU closure keep track of which actual calls happen 
Minor cleanups

llvm-svn: 7059
 2003-07-02 04:37:48 +00:00
Chris Lattner
60652f41c4 Make local pass print out its progress 
llvm-svn: 7058
 2003-07-02 04:37:26 +00:00
Chris Lattner
f3cfe71797 Fix bug: Regression/Other/2002-03-11-ExprAssertion.ll 
llvm-svn: 7046
 2003-07-01 21:08:52 +00:00
Chris Lattner
5ddec0f02d Rework TD pass to work with the precise call graph constructed by the BU phase 
llvm-svn: 7031
 2003-07-01 16:28:11 +00:00
Chris Lattner
3536455262 Do not treat global variables as functions! (and assert failing) 
llvm-svn: 7030
 2003-07-01 16:27:53 +00:00
Chris Lattner
7ab30a179b Dont' print scalar nodes for ConstantPointerRefs 
llvm-svn: 7029
 2003-07-01 16:27:32 +00:00
Chris Lattner
599287e3c3 Minor cleanups 
llvm-svn: 7027
 2003-07-01 16:04:18 +00:00
Chris Lattner
33fce4d868 Use the getFunctionNames method 
llvm-svn: 7008
 2003-06-30 05:57:39 +00:00
Chris Lattner
cb32be085b Add new method 
llvm-svn: 7007
 2003-06-30 05:57:30 +00:00
Chris Lattner
851b6382b6 Split CallSiteIterator out into DSCallSiteIterator.h, and generalize it a bit 
llvm-svn: 7006
 2003-06-30 05:27:53 +00:00
Chris Lattner
e40d871120 Be more const-correct 
llvm-svn: 7005
 2003-06-30 05:27:18 +00:00
Chris Lattner
fb9f50ee23 Fix bug in last checkin 
llvm-svn: 7003
 2003-06-30 05:18:26 +00:00
Chris Lattner
9954cfc9bf Reimplement the BU closure to collapse all SCC graphs into a single graph. 
Look at all of the code that gets deleted!

llvm-svn: 7001
 2003-06-30 05:09:58 +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
20d3019fa6 Remove dead method 
llvm-svn: 6999
 2003-06-30 04:53:39 +00:00
Chris Lattner
37d7a580b2 Do not delete the same graph multiple times when freeing memory if graphs are sharing 
llvm-svn: 6998
 2003-06-30 04:53:27 +00:00
Chris Lattner
64008895c8 Do not multiply delete graphs if functions are sharing graphs 
llvm-svn: 6997
 2003-06-30 04:53:08 +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
2ce6424601 Adjust for new DSGraph API 
llvm-svn: 6993
 2003-06-30 03:14:54 +00:00
Chris Lattner
762a057a22 Abstract out the predicate which decides whether a function gets complete 
arguments or not...

llvm-svn: 6987
 2003-06-29 22:37:07 +00:00
Chris Lattner
9cb6f34b81 Fix minor bug in previous checkin 
llvm-svn: 6986
 2003-06-29 22:36:31 +00:00
Chris Lattner
9229da84be Add support for ensuring that nodes are not incomplete 
llvm-svn: 6985
 2003-06-29 22:36:15 +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
ed9302c854 Add print method to not get silly warning from analyze 
llvm-svn: 6981
 2003-06-29 20:27:16 +00:00
Chris Lattner
55099822d5 New pass which is useful for writing regression tests 
llvm-svn: 6979
 2003-06-29 18:17:07 +00:00
Chris Lattner
b932c794ee Expose must alias information for global variables, implementing: DSGraph/mustalias.ll 
llvm-svn: 6973
 2003-06-29 00:54:08 +00:00
Chris Lattner
d1ca41db68 If the alias analysis algorithm we are using can provide MUST alias information, 
expose it directly as value numbering information

llvm-svn: 6972
 2003-06-29 00:53:34 +00:00
Chris Lattner
7b5077de46 Count operands to instructions as well as just results. This allows for global variables to be checked as well 
llvm-svn: 6970
 2003-06-29 00:07:11 +00:00
Chris Lattner
1352a50cbb Propagate globals graph from the local to bu to td globals graphs. This 
fixes bug: DSGraph/buglobals.ll

llvm-svn: 6947
 2003-06-28 22:14:55 +00:00
Chris Lattner
801e22514d Drop references to globals who do exist in the globals graph, but are never 
read or written to.  Keep track of how many times this happens.  This should
be good for deleting things like references to type information in C++ classes

llvm-svn: 6946
 2003-06-28 22:10:58 +00:00
Chris Lattner
5f90382628 Avoid double negatives 
llvm-svn: 6945
 2003-06-28 21:58:28 +00:00
Chris Lattner
cf6df3ef6b New pass to perform DSA based optimizations. Initially we just support turning 
globals into constants if we can prove it's safe

llvm-svn: 6941
 2003-06-28 21:54:55 +00:00
Chris Lattner
7aa690403b Fix bug: LevelRaise/2003-06-25-ExprAnalysis.ll 
llvm-svn: 6903
 2003-06-25 17:09:03 +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
5083d8846b Implement handling of constantexprs for disambiguation. This implements 
BasicAA/featuretest.ll:constexpr_test

llvm-svn: 6740
 2003-06-17 15:25:37 +00:00
Chris Lattner
07452f836a Avoid divide by zero errors 
llvm-svn: 6738
 2003-06-17 15:07:20 +00:00
Chris Lattner
2806ac8828 Nodes get forwarded when they are collapsed currently. 
llvm-svn: 6696
 2003-06-16 12:08:18 +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
Chris Lattner
24441a15c5 Implement forwarding from stores to loads of must-aliased pointers. 
This implements: GCSE/2003-06-13-LoadStoreEliminate.ll

llvm-svn: 6694
 2003-06-16 12:06:41 +00:00
Chris Lattner
fe6eef643c Be more robust in the face of undefined behavior. 
Fixes bug: BasicAA/2003-06-01-AliasCrash.ll

llvm-svn: 6538
 2003-06-02 05:42:39 +00:00
Chris Lattner
fb76ebe95a Fix bug: CBackend/2003-05-31-MissingStructName.ll 
llvm-svn: 6495
 2003-05-31 23:30:52 +00:00