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686e94e760
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53 Commits

Author SHA1 Message Date
Chris Lattner
686e94e760 DEBUG got moved to Support/Debug.h 
llvm-svn: 7492
 2003-08-01 22:15:03 +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
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
59bb44723a Try using trivially dead deletion 
llvm-svn: 7075
 2003-07-02 19:49:11 +00:00
Chris Lattner
56585a82d9 Complete rewrite of td pass 
llvm-svn: 7064
 2003-07-02 04:39:44 +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
20d3019fa6 Remove dead method 
llvm-svn: 6999
 2003-06-30 04:53:39 +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
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
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
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
0a0266865a Remove support for the MultiObject flag, which was fundamentally broken 
llvm-svn: 6840
 2003-06-22 03:03:52 +00:00
Chris Lattner
522cb6d282 Implement a "union-findy" version of DS-Analysis, which eliminates the 
Referrers list on DSNodes.

llvm-svn: 5536
 2003-02-11 23:11:51 +00:00
Chris Lattner
940a5eddb3 Rearrange code 
llvm-svn: 5527
 2003-02-10 18:16:36 +00:00
Chris Lattner
dcf8d02380 Fix major bugs in incompleteness marking that were pessimizing results 
llvm-svn: 5515
 2003-02-09 18:42:43 +00:00
Chris Lattner
6daed111da Fix a bug where we would mark the callees arguments incomplete if the caller was external. 
llvm-svn: 5510
 2003-02-08 23:07:39 +00:00
Chris Lattner
5f3ef2f0e7 Implement optimization for direct function call case. This dramatically 
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
a4f94897b9 Make the TD pass not include all of the call nodes from the local pass, 
eliminating incomplete markers from them

llvm-svn: 5490
 2003-02-04 00:59:32 +00:00
Chris Lattner
102e619864 Hack to work around deficiency in pass infrastructure 
llvm-svn: 5485
 2003-02-03 22:51:28 +00:00
Chris Lattner
7aec6c471b Change DSGraph stuff to use hash_(set|map) instead of std::(set|map) 
This change provides a small (3%) but consistent speedup

llvm-svn: 5460
 2003-02-01 04:52:08 +00:00
Chris Lattner
f1afc156f8 * Eliminate boolean arguments in favor of using enums 
* T-D pass now eliminates unreachable globals

llvm-svn: 5419
 2003-01-23 22:05:33 +00:00
Vikram S. Adve
b0371788d9 Fix logical error in TD pass: we should clear Mod/Ref bits of each caller 
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
Chris Lattner
f56a5282d2 Handle a mismatch between # function args and call site args 
llvm-svn: 4696
 2002-11-11 21:36:05 +00:00
Chris Lattner
1fe76d2385 eliminate the ability to remove global nodes from deadNodeElminate... for now. 
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
Chris Lattner
0752756a6a Add globals graphs to all three passes 
llvm-svn: 4663
 2002-11-09 21:12:07 +00:00
Chris Lattner
e726eb5ea7 Clean up DSGraph::removeDeadNodes interface 
llvm-svn: 4660
 2002-11-09 21:00:49 +00:00
Chris Lattner
3e54e8f3ca Make removeTriviallyDeadNodes a private interface of DSGraph 
llvm-svn: 4659
 2002-11-09 20:55:24 +00:00
Chris Lattner
5cffea23bb Reenable 'quick exit' case 
llvm-svn: 4638
 2002-11-08 22:26:43 +00:00
Chris Lattner
b3bf781d44 Reimplement TD pass completely it now works 
llvm-svn: 4635
 2002-11-08 21:28:37 +00:00
Chris Lattner
22e36c86cd Use DSNodeHandleMap instead to be safe 
llvm-svn: 4622
 2002-11-08 05:01:14 +00:00
Chris Lattner
86b5e92d45 Add flush 
llvm-svn: 4619
 2002-11-08 01:21:07 +00:00
Chris Lattner
450e1fbc76 Instead of using a bool that constant has to be explained, use a self 
explanitory enum instead.

llvm-svn: 4600
 2002-11-07 07:06:20 +00:00
Chris Lattner
7d2624d4f3 Implement a new mergeInGraph method, which basically factors code out of 
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
Chris Lattner
dfba076f5b Rename DataStructureAnalysis namespace to DS 
llvm-svn: 4596
 2002-11-07 05:20:53 +00:00
Chris Lattner
304e29942d Delete "StripScalars" argument to cloneInto method 
llvm-svn: 4560
 2002-11-06 06:16:30 +00:00
Chris Lattner
296c58a00c - Make sure to only keep track of mappings that the TD pass may need in the 
future.  This prevents having spurious map entries to nodes that we really
    don't care about.  This allows us to reenable the DeadNodeElim, which was
    disabled.

llvm-svn: 4260
 2002-10-22 16:01:03 +00:00
Chris Lattner
1157e5dafb Delete unused arguments to DSGraph::cloneInto method 
llvm-svn: 4253
 2002-10-21 19:50:29 +00:00
Chris Lattner
4410178282 - Add "ResolvingCaller" to the CallSite record. This keeps track of which 
function was finally able to resolve the function call.  Adding this allows
    the TD pass to actually work right!
  - Temporarily disable dead node pruning.  This will be reenabled soon.

llvm-svn: 4252
 2002-10-21 19:47:18 +00:00
Chris Lattner
1276c50e7b As it turns out, we don't need a fully generic mapping copy ctor, we just need 
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
Chris Lattner
01fc78de5f Remove some unneccesary 'using' directives 
llvm-svn: 4246
 2002-10-21 13:31:48 +00:00
Chris Lattner
2914391ab6 - Make DSCallSite not inherit from std::vector. Renamed methods slightly. 
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
Vikram S. Adve
85a358583f Remove spurious caller pointer in DSCallSite. 
Also add functions to access pointer argument nodes cleanly.

llvm-svn: 4235
 2002-10-20 21:41:02 +00:00
Vikram S. Adve
c02c96c3de Added a first-class representation for each call site that can be 
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
Chris Lattner
4e44ccce8a Remove more obsolete code 
llvm-svn: 4221
 2002-10-17 20:53:12 +00:00
Chris Lattner
2ffe6a8e0b * Make the DSGraph cloner automatically merge global nodes 
* 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
Chris Lattner
90ccd73585 Enable incompleteness marking 
llvm-svn: 4217
 2002-10-17 04:57:28 +00:00
Chris Lattner
5028142e9a * First try at implementing TD pass this does not merge global nodes yet, 
among other things.
  * Significant rewrite of TD pass to avoid potentially N^2 algorithms if
    possible.  It is still not complete, but at least it's checked in now.

llvm-svn: 4215
 2002-10-17 04:26:54 +00:00
Chris Lattner
c1b7de86d5 Checkin some major reworks of data structure analysis. This is not done, 
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
Chris Lattner
b90f78e2b3 - Do not expose ::ID from any of the analyses anymore. 
llvm-svn: 3416
 2002-08-21 17:09:45 +00:00