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639 Commits

Author SHA1 Message Date
Vikram S. Adve
59e7da7437 Don't require a BB to look-up live variables, unless they may need to 
be recomputed.

llvm-svn: 7388
 2003-07-29 19:42:32 +00:00
Chris Lattner
36a7bf78fa Fix another minor bug 
llvm-svn: 7340
 2003-07-26 23:00:05 +00:00
Chris Lattner
752a4ca4c4 Dont' try to parse the colon 
llvm-svn: 7323
 2003-07-25 20:49:29 +00:00
Chris Lattner
915b998b3f Add a more general check-flags which can be used to ensure arbitrary flags are set 
llvm-svn: 7322
 2003-07-25 20:45:40 +00:00
Chris Lattner
bfe70df7fc Fit code into 80 columns 
llvm-svn: 7249
 2003-07-23 15:17:01 +00:00
Chris Lattner
0fce06e40e Eliminate old-style cast 
llvm-svn: 7248
 2003-07-23 15:16:40 +00:00
Vikram S. Adve
420ec0bb0f Fix comment. 
llvm-svn: 7227
 2003-07-22 12:08:58 +00:00
Brian Gaeke
026c333f07 Fix typo in call to isUnresolvableFunc, which was breaking the build. 
llvm-svn: 7194
 2003-07-17 19:07:46 +00:00
Vikram S. Adve
96abba3e01 Rematerialize nodes from the globals graph into the current graph 
after all callees are inlined into the current graph.

NOTE: There's also a major bug fix for the BU pass in DataStructure.cpp,
which ensures that resolvable indirect calls are not moved out to the
globals graph, so that they are eventually inlined (if possible).

llvm-svn: 7189
 2003-07-16 21:42:03 +00:00
Vikram S. Adve
e2993f34ed (1) Rematerialize nodes from the globals graph into the current graph 
after all callers are inlined into the current graph.
(2) Optimize the way a graph is inlined into its callees in the TD phase:
    (a) Use DSGraph::cloneReachableSubgraph to clone only a subgraph at
        each call site, for faster inlining.
    (b) Clone separately for the same callee at different call sites,
        since only the reachable subgraph is being cloned, not the entire
        caller graph.

llvm-svn: 7188
 2003-07-16 21:40:28 +00:00
Vikram S. Adve
d1a85b7860 Implement 2 important changes: (1) rematerialization from the globals graph, 
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
Vikram S. Adve
0ce80bfa82 Factor out the test for unresolvable external functions into 
isUnresolvableFunc() (I thought I needed this externally.
I don't, but it's still nicer this way.)

llvm-svn: 7186
 2003-07-16 21:25:17 +00:00
Misha Brukman
0b5999cca1 The word separate' only has one e'. 
llvm-svn: 7174
 2003-07-14 17:26:34 +00:00
Chris Lattner
b93ef28cef Reuse the values if they are constants: this is important so that we index into the right structure field 
This fixes bug: BasicAA/2003-07-03-BasicAACrash.ll

llvm-svn: 7093
 2003-07-03 06:42:38 +00:00
Chris Lattner
2a6504c799 Remove globals more aggressively from graphs. 
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! 
llvm-svn: 7088
 2003-07-02 23:57:05 +00:00
Chris Lattner
86c8f822ec Disable incorrect mustalias code 
llvm-svn: 7087
 2003-07-02 23:56:51 +00:00
Chris Lattner
478e42b621 Remove space at end of line 
llvm-svn: 7084
 2003-07-02 23:44:15 +00:00
Chris Lattner
b64aff94fd Fix how we are handling unreachable functions. This DRAMATICALLY improves efficiency 
llvm-svn: 7082
 2003-07-02 23:42:48 +00:00
Chris Lattner
083398eff5 Keep track of how many inlinings are performed 
llvm-svn: 7076
 2003-07-02 20:24:42 +00:00
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
Chris Lattner
01cbfa9317 Eliminate unnecessary ->get calls that are now automatically handled. 
llvm-svn: 6397
 2003-05-29 15:12:27 +00:00
Vikram S. Adve
ab50c0aee5 Renamed MachienOperand::opIsDef to MachineOperand::opIsDefOnly() 
and related functions and flags.  Fixed several bugs where only
"isDef" was being checked, not "isDefAndUse".

llvm-svn: 6342
 2003-05-27 00:06:48 +00:00
Chris Lattner
777fdfc135 Fix Bug: BasicAA/2003-05-21-GEP-Problem.ll 
llvm-svn: 6270
 2003-05-21 20:23:26 +00:00
Misha Brukman
58c5ef0f4d The word operands' has an r' in it. 
llvm-svn: 6250
 2003-05-20 20:36:39 +00:00
Misha Brukman
80e11dcb30 Sparc instruction opcodes now all live under the `V9' namespace. 
llvm-svn: 6249
 2003-05-20 20:32:24 +00:00
Misha Brukman
74cf3f5246 s/convertable/convertible/g 
llvm-svn: 6248
 2003-05-20 18:45:36 +00:00
Chris Lattner
648e9d9cff Fix bug: Analysis/LoopInfo/2003-05-15-NestingProblem.ll 
llvm-svn: 6230
 2003-05-15 18:03:51 +00:00
Chris Lattner
0ec2b1188a Fix miscompilation in Fhourstones and bug: LICM/2003-05-02-LoadHoist.ll 
llvm-svn: 5994
 2003-05-03 03:42:08 +00:00
Chris Lattner
72338826c9 Fix bug: LoopPreheaders/2003-04-25-AssertFail.ll 
llvm-svn: 5959
 2003-04-26 19:34:18 +00:00
Chris Lattner
43e38979b5 Fix BasicAA/2003-04-25-GEPCrash.ll 
llvm-svn: 5940
 2003-04-25 18:03:06 +00:00
Chris Lattner
3e687b8b65 Remove unneccesary &* 
llvm-svn: 5871
 2003-04-23 16:36:11 +00:00
Chris Lattner
72a506d1f2 Fix bug: BasicAA/2003-04-22-GEPProblem.ll 
llvm-svn: 5858
 2003-04-22 22:00:27 +00:00
Chris Lattner
23615ca1b5 Fix bug: IndVarSimplify/2003-04-16-ExprAnalysis.ll 
llvm-svn: 5795
 2003-04-16 22:50:19 +00:00
Chris Lattner
8080df315f Remove unneccesary forward decl 
llvm-svn: 5710
 2003-03-06 16:37:29 +00:00
Chris Lattner
9d545c8aa3 Fix bug: BasicAA/2003-03-04-GEPCrash.ll 
llvm-svn: 5695
 2003-03-04 16:40:17 +00:00
Chris Lattner
eb82f294bd ADd two new 'add' methods 
llvm-svn: 5691
 2003-03-03 23:28:05 +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
a29ba21066 Fix a problem with negative indexes 
llvm-svn: 5681
 2003-03-02 23:43:34 +00:00
Chris Lattner
77840ef407 Add dump method for Loops 
llvm-svn: 5671
 2003-02-28 16:54:45 +00:00
Chris Lattner
030a114dba Simplify a bit by using a new member function 
llvm-svn: 5662
 2003-02-27 22:48:08 +00:00
Chris Lattner
c37308604f Change behavior of changeExitBlock function to replace all instances of exit block 
llvm-svn: 5661
 2003-02-27 22:37:44 +00:00
Chris Lattner
e1d4fb3c2c Fix bug: LICM/2003-02-27-PreheaderProblem.ll 
There may be a single outside predecessor and
still need a new loop-preheader if the predecessor has multiple
successors.

llvm-svn: 5656
 2003-02-27 21:51:38 +00:00
Chris Lattner
ac72aab6e7 - LoopInfo now calculates and tracks loop exit blocks 
llvm-svn: 5650
 2003-02-27 00:38:34 +00:00
Chris Lattner
5baf8bb966 Make the aliassettracker much more precise by actually tracking size 
information for various accesses.  What a concept.

llvm-svn: 5647
 2003-02-26 22:11:00 +00:00
Chris Lattner
933b11a154 Fix bug: BasicAA/2003-02-26-AccessSizeTest.ll 
llvm-svn: 5645
 2003-02-26 21:57:23 +00:00
Chris Lattner
e923b037b7 Fix several bugs in basic-aa 
llvm-svn: 5643
 2003-02-26 21:28:49 +00:00
Chris Lattner
4e622afb23 Add new -no-aa implementation 
llvm-svn: 5641
 2003-02-26 19:57:10 +00:00
Chris Lattner
721f9fc770 Move BasicAA pass out to it's own header file 
llvm-svn: 5640
 2003-02-26 19:41:54 +00:00
Chris Lattner
4162adcfee Adjust to implement new AA interface 
llvm-svn: 5638
 2003-02-26 19:29:36 +00:00
Chris Lattner
4d57299049 Adjust to new AA interface 
llvm-svn: 5637
 2003-02-26 19:29:16 +00:00