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339 Commits

Author SHA1 Message Date
Chris Lattner
0e158e64ff Remove a couple of #includes, move some code from .h file 
llvm-svn: 4575
 2002-11-06 18:38:18 +00:00
Chris Lattner
97722c2dad Change Steens class to build with Vikram's changes 
llvm-svn: 4572
 2002-11-06 18:08:32 +00:00
Chris Lattner
6a019cdff5 Make PointerSize & Shift be enums 
Fix problem with recursive merging

llvm-svn: 4570
 2002-11-06 18:01:39 +00:00
Vikram S. Adve
201d4e3639 Make query operations non-const to allow demand-driven analyses. 
llvm-svn: 4569
 2002-11-06 17:17:55 +00:00
Vikram S. Adve
2a1c1171e7 An interprocedural analysis pass that computes flow-insensitive 
IP Mod and Ref information for every function and every call site.

llvm-svn: 4567
 2002-11-06 17:02:03 +00:00
Chris Lattner
d0387e7e11 Dramatically simplify internal DSNode representation, get implementation 
*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
Chris Lattner
304e29942d Delete "StripScalars" argument to cloneInto method 
llvm-svn: 4560
 2002-11-06 06:16:30 +00:00
Chris Lattner
b09aadd633 Attempted fixes to the mergemap to make it work better. 
Ended up disabling merge map merging completely.  It shall be removed.

llvm-svn: 4550
 2002-11-05 00:01:58 +00:00
Vikram S. Adve
b7afa2004a Simple passes that print out SCCs in the CFGs or in the CallGraph of a module. 
llvm-svn: 4532
 2002-11-04 14:20:22 +00:00
Chris Lattner
5c467c7d99 Change the "Cannot merge two portions of the same node yet" from an assertion 
into a "oh crap, lets collapse" case

llvm-svn: 4530
 2002-11-04 06:48:26 +00:00
Chris Lattner
4e4beb637b Give a better error message in an unhandled case 
llvm-svn: 4521
 2002-11-04 02:29:15 +00:00
Chris Lattner
aaf17e11b1 Allow the call graph to be called from analyze naturally with print implemented 
llvm-svn: 4517
 2002-11-04 00:21:19 +00:00
Chris Lattner
8d63aab886 Rename ValueMap to ScalarMap 
llvm-svn: 4516
 2002-11-03 21:27:48 +00:00
Chris Lattner
0ee058644e Rename NewNode flag to HeapNode 
llvm-svn: 4515
 2002-11-03 21:24:04 +00:00
Chris Lattner
7287a8f9a8 Change the letters used to represent stack and heap allocations to "S" and "H" 
respectively.  This is to make presentation easier in the paper.

llvm-svn: 4514
 2002-11-03 19:46:15 +00:00
Chris Lattner
702ac95902 Implement the "unknown flag" which mainly consists of aligning printing code 
llvm-svn: 4490
 2002-11-02 00:36:03 +00:00
Chris Lattner
53f7777f77 Oops, this was not meant to be checked in 
llvm-svn: 4489
 2002-11-02 00:26:32 +00:00
Chris Lattner
226c503f31 Stop representing scalars as explicit nodes in the graph. Now the only 
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
Chris Lattner
251a8d9df5 Fix comments, steens is context sensitive, we just haven't implemented 
mod/ref apis yet

llvm-svn: 4485
 2002-11-01 17:34:23 +00:00
Chris Lattner
52b845cd0c Add a fixme 
llvm-svn: 4479
 2002-10-31 23:24:00 +00:00
Chris Lattner
32eb8c3659 * Minor optimization: when merging nodes, merge the smaller one into the 
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
Chris Lattner
07c1f70586 Remove dead code 
llvm-svn: 4467
 2002-10-31 06:52:26 +00:00
Chris Lattner
317daff9bf This fixes all kinds of problems with array handling. There are still bugs to 
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
Chris Lattner
d4c9998d7a Use new isCommutative interface, which gives us SetEQ and SetNE for free. 
Thanks fly out to Casey Carter for this fix.

llvm-svn: 4460
 2002-10-31 04:20:07 +00:00
Misha Brukman
c9c721edf0 Fix spelling of `propagate'. 
llvm-svn: 4423
 2002-10-29 23:06:16 +00:00
Chris Lattner
d6e5d73aa8 Eliminate uses of MachineBasicBlock::get 
llvm-svn: 4340
 2002-10-28 18:01:21 +00:00
Chris Lattner
b8c6acfbc0 Rename MachineCodeForBasicBlock to MachineBasicBlock 
llvm-svn: 4318
 2002-10-28 01:41:47 +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
61b32b3ab0 The callee is not correct, and confuses the TD pass. Null it out. 
llvm-svn: 4259
 2002-10-22 15:58:46 +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
7588e35aa8 Add another copy ctor form 
llvm-svn: 4251
 2002-10-21 15:32:34 +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
8929f75913 Don't create a new node for every reference to a global. This caused a huge 
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
Chris Lattner
9f6ddf9bdd Fix a confusing bug that caused return value and callee pointers to not 
be printed!

llvm-svn: 4248
 2002-10-21 13:47:57 +00:00
Chris Lattner
01fc78de5f Remove some unneccesary 'using' directives 
llvm-svn: 4246
 2002-10-21 13:31:48 +00:00
Chris Lattner
1953a9de17 Fix bug with prior checkin 
llvm-svn: 4242
 2002-10-21 02:18:55 +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
Chris Lattner
189b9b5397 Avoid extra copy 
llvm-svn: 4239
 2002-10-20 22:12:06 +00:00
Chris Lattner
9d0418d007 Simplify code a bit, add comment flyer 
llvm-svn: 4238
 2002-10-20 22:11:44 +00:00
Chris Lattner
4eec37a762 Split some long lines 
llvm-svn: 4237
 2002-10-20 22:11:17 +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
Chris Lattner
ff8176c481 This function can be static 
llvm-svn: 4234
 2002-10-20 20:39:31 +00:00
Chris Lattner
cf6f36ae27 Fix previous checkin :( 
llvm-svn: 4233
 2002-10-20 20:39:17 +00:00
Chris Lattner
2f778ae5aa Avoid extra callSite copy 
llvm-svn: 4232
 2002-10-20 20:32:13 +00:00
Chris Lattner
3af7377974 Print the array flag 
llvm-svn: 4231
 2002-10-20 20:29:10 +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
efc251af3d Convert typerec to be a structure instead of a pair 
llvm-svn: 4226
 2002-10-18 18:22:46 +00:00
Chris Lattner
bd5e932aeb Print Mod/ref info 
llvm-svn: 4224
 2002-10-17 22:13:28 +00:00
Chris Lattner
51b2abb899 Calculate mod/ref info 
llvm-svn: 4223
 2002-10-17 22:13:19 +00:00