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945 Commits

Author SHA1 Message Date
Chris Lattner
550242f7ec Use context-sensitive alias analysis to avoid pessimization in clients of 
AliasSetTracker (dse and licm).  This implements
DeadStoreElimination/context-sensitive.llx

llvm-svn: 15254
 2004-07-27 02:20:26 +00:00
Chris Lattner
40bd881142 Make basicaa a bit more aggressive 
llvm-svn: 15252
 2004-07-27 02:18:52 +00:00
Chris Lattner
fe3fff9354 basic-aa can actually provide simple mod/ref info 
llvm-svn: 15251
 2004-07-27 02:13:55 +00:00
Chris Lattner
9cfa22fb48 This was implemented back in march 
llvm-svn: 15250
 2004-07-27 01:59:42 +00:00
Chris Lattner
8b2590f09f Add some new methods 
llvm-svn: 15230
 2004-07-26 05:50:23 +00:00
Chris Lattner
447e112745 Fix a latent bug in the AliasSetTracker that was exposed by the FreeInst additions and broke a bunch of programs last night. 
llvm-svn: 15214
 2004-07-25 18:32:01 +00:00
Chris Lattner
31d9cbf7bb Add support for free instructions 
llvm-svn: 15197
 2004-07-25 07:57:37 +00:00
Chris Lattner
e3adc34ea7 Clean up reference counting to stop "leaking" alias sets 
llvm-svn: 15099
 2004-07-22 07:58:18 +00:00
Brian Gaeke
f18cdca667 These files don't need to include <iostream> since they include "Support/Debug.h". 
llvm-svn: 15089
 2004-07-21 20:50:33 +00:00
Chris Lattner
195950df76 Add capability to remove aliasing aliassets from an AST 
llvm-svn: 15066
 2004-07-21 07:04:26 +00:00
Chris Lattner
f9976c5dbf Make the AST interface a bit richer by returning whether an insertion caused 
an insertion or not (because the pointer set already existed).

llvm-svn: 15064
 2004-07-21 05:18:04 +00:00
Chris Lattner
36940c22f7 Do not ignore casts unless they are pointer-pointer casts. This caused us 
to miscompile the SingleSource/Regression/C++/pointer_member.cpp program.

llvm-svn: 15062
 2004-07-21 03:56:54 +00:00
Reid Spencer
b339652b44 bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14942
 2004-07-18 00:18:30 +00:00
Chris Lattner
74807fe1a3 Fix incorrect computation of mod/ref sets. Do not ask for mod/ref information 
for objects of size 0.

llvm-svn: 14908
 2004-07-17 07:40:34 +00:00
Chris Lattner
2b68acbfe0 Print modref information in a useful way. 
llvm-svn: 14907
 2004-07-17 06:43:20 +00:00
Chris Lattner
49fd294675 Cleanups: fold two loops into one 
New features: -print-all-alias-modref-info option, print more info

llvm-svn: 14906
 2004-07-17 06:28:49 +00:00
Chris Lattner
763d51409f Be compatible with IA64 
llvm-svn: 14864
 2004-07-16 00:04:13 +00:00
Chris Lattner
bb7fe18493 Fixes for PR341 
llvm-svn: 14843
 2004-07-15 02:31:46 +00:00
Chris Lattner
d7d7bc70fd Fix for PR341 
llvm-svn: 14842
 2004-07-15 02:26:49 +00:00
Chris Lattner
fb6e1c2007 Simplify logic. 
llvm-svn: 14825
 2004-07-14 20:27:12 +00:00
Chris Lattner
203cdb2e64 Disable some code that isn't helping matters 
llvm-svn: 14682
 2004-07-08 07:25:51 +00:00
Chris Lattner
dce7977318 Headers moved 
llvm-svn: 14665
 2004-07-07 06:35:22 +00:00
Chris Lattner
7e0d8f8084 Move all of the DSA headers into the Analysis/DataStructure subdir. 
llvm-svn: 14663
 2004-07-07 06:32:21 +00:00
Chris Lattner
fb2f56c7c8 As much as I hate to say it, the whole setNode interface for DSNodeHandles 
is HOPELESSLY broken.  The problem is that the embedded getNode call can
change the offset of the node handle in unpredictable ways.

As it turns out, all of the clients of this method really want to set
both the node and the offset, thus it is more efficient (and less buggy)
to just do both of them in one method call.  This fixes some obscure bugs
handling non-forwarded node handles.

llvm-svn: 14660
 2004-07-07 06:12:52 +00:00
Reid Spencer
50ec3f9325 Add #include <iostream> since Value.h does not #include it any more. 
llvm-svn: 14622
 2004-07-04 12:19:56 +00:00
Chris Lattner
7d6a9bf05c Initial checkin of a simple mod/ref analysis for global variables. This is 
still overly conservative and uses very simple data structures, but it is a
start, and allows elimination of a lot of loads.

llvm-svn: 14462
 2004-06-28 06:33:13 +00:00
Chris Lattner
548171248d Moved IPModRef out of the public include dir 
llvm-svn: 14455
 2004-06-28 00:41:23 +00:00
Chris Lattner
6eb1e76227 Move DependenceGraph.* to lib/Analysis/DataStructure 
llvm-svn: 14452
 2004-06-28 00:32:33 +00:00
Chris Lattner
a77dd6edec Moving to lib/Analysis/DataStructure 
llvm-svn: 14450
 2004-06-28 00:29:42 +00:00
Chris Lattner
f914ccfa2a Move MemoryDepAnalysis.h into lib/Analysis/DataStructure 
llvm-svn: 14448
 2004-06-28 00:27:16 +00:00
Chris Lattner
244d5fba00 Move PgmDependenceGraph.h out of the public include hierarchy 
llvm-svn: 14446
 2004-06-28 00:20:04 +00:00
Chris Lattner
850f1967b6 Simplify code 
llvm-svn: 14424
 2004-06-26 19:31:26 +00:00
Chris Lattner
d6e23a5104 Fix header 
llvm-svn: 14394
 2004-06-25 04:24:22 +00:00
Chris Lattner
228e6d64d0 Remove distasteful method which is really part of the indvars pass 
llvm-svn: 14359
 2004-06-24 06:52:20 +00:00
Chris Lattner
4e431080a9 Fix merging of nodes whose incoming offset is not zero. This unbreaks DSA on 
several mallocbench programs, including perl.

llvm-svn: 14342
 2004-06-23 06:29:59 +00:00
Misha Brukman
699226cbe4 File requires IPA, moved to lib/Analysis/IPA 
llvm-svn: 14330
 2004-06-22 19:04:53 +00:00
Misha Brukman
f940c277df File depends on MemoryDepAnalysis (DSA); moved to lib/Analysis/DataStructure 
llvm-svn: 14327
 2004-06-22 18:28:37 +00:00
Misha Brukman
170b8a80de Files depend on DSA, moved to lib/Analysis/DataStructure 
llvm-svn: 14326
 2004-06-22 18:13:24 +00:00
Misha Brukman
43f0a951fe File depends on DSA, moved to lib/Analysis/DataStructure 
llvm-svn: 14325
 2004-06-22 18:11:38 +00:00
Chris Lattner
26e594052e If an edge points to a field of another memory object, actually reflect this 
in the DOT visualization of the DSGraphs.

llvm-svn: 14316
 2004-06-22 07:13:10 +00:00
Chris Lattner
fea46da8de REALLY fix PR378: crash in scalar evolution analysis 
llvm-svn: 14275
 2004-06-20 20:32:16 +00:00
Chris Lattner
59d13ac701 Fix a bug in my change last night that caused a few test failures. 
llvm-svn: 14270
 2004-06-20 17:01:44 +00:00
Chris Lattner
8c90177e5f Do not sort SCEV objects by address: instead sort by complexity and group 
by address.  This prevents the resultant SCEV objects from depending on
where in memory other scev objects happen to live.

llvm-svn: 14263
 2004-06-20 06:23:15 +00:00
Chris Lattner
9b19f34fe2 Fix a tiny bug in the -no-aa pass, in which it did not ever get a target data. 
This is a regression from 1.2, though noone uses -no-aa anyway

llvm-svn: 14245
 2004-06-19 08:05:58 +00:00
Chris Lattner
0cd29ae2cd Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID() 
llvm-svn: 14201
 2004-06-17 18:19:28 +00:00
Chris Lattner
7c3600a50e isnan is dead 
llvm-svn: 14191
 2004-06-15 21:52:58 +00:00
Chris Lattner
8dd2380de4 llvm.isnan doesn't access memory 
llvm-svn: 14151
 2004-06-11 06:17:13 +00:00
Chris Lattner
9579beadfe Don't grab the condition of unconditional branches! 
This fixes PR363

llvm-svn: 14076
 2004-06-08 21:50:30 +00:00
Chris Lattner
1515fd1851 Add some notes so I can throw away one of my many todo lists. 
llvm-svn: 14046
 2004-06-05 20:12:36 +00:00
Chris Lattner
2afbad063f Don't send random junk to CachedWriter's. Also remove a cast that could be 
problematic when Type does not derive from Value.

llvm-svn: 14022
 2004-06-04 20:25:55 +00:00