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3625 Commits

Author SHA1 Message Date
Dan Gohman
104f1812ce Update comments. 
llvm-svn: 117048
 2010-10-21 19:01:22 +00:00
Dan Gohman
1b85604130 Memdep says that an instruction clobbers itself 
when it means there is no specific clobber instruction.

llvm-svn: 116960
 2010-10-20 22:37:41 +00:00
Dan Gohman
a2ab75bc8d Factor out the main aliasing check into a separate function. 
llvm-svn: 116958
 2010-10-20 22:11:14 +00:00
Dan Gohman
2549d0cf64 Fix comments; the type graph is currently a tree, not a DAG. 
llvm-svn: 116954
 2010-10-20 22:02:58 +00:00
Tobias Grosser
23c8341c3d Add RegionPass support. 
A RegionPass is executed like a LoopPass but on the regions detected by the
RegionInfo pass instead of the loops detected by the LoopInfo pass.

llvm-svn: 116905
 2010-10-20 01:54:44 +00:00
Douglas Gregor
48b4568718 Fix CMake build 
llvm-svn: 116903
 2010-10-20 01:36:56 +00:00
Dan Gohman
da85ed8541 Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that 
it doesn't have a special relationship with BasicAliasAnalysis
anymore.

llvm-svn: 116876
 2010-10-19 23:09:08 +00:00
Dan Gohman
f372cf869b Reapply r116831 and r116839, converting AliasAnalysis to use 
uint64_t, plus fixes for places I missed before.

llvm-svn: 116875
 2010-10-19 22:54:46 +00:00
Dan Gohman
b4aa503501 Revert r116831 and r116839, which are breaking selfhost builds. 
llvm-svn: 116858
 2010-10-19 21:06:16 +00:00
Dan Gohman
f4c5fe73be Change AliasAnalysis and its clients to use uint64_t instead of unsigned 
for representing object sizes, for consistency with other parts of LLVM.

llvm-svn: 116831
 2010-10-19 18:00:02 +00:00
Owen Anderson
6c18d1aac0 Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which 
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.

llvm-svn: 116820
 2010-10-19 17:21:58 +00:00
Dan Gohman
14fe8cf238 Consistently use AliasAnalysis::UnknownSize instead of hardcoding ~0u. 
llvm-svn: 116815
 2010-10-19 17:06:23 +00:00
Dan Gohman
e4a82e2f21 Make the representation of AliasSets explicitly differentiate 
between "not known yet" and "known no tbaa info" so that it
can merge them properly.

llvm-svn: 116767
 2010-10-18 23:31:47 +00:00
Dan Gohman
408beac597 Don't pass the raw invalid pointer used to represent conflicting 
TBAA information to AliasAnalysis.

llvm-svn: 116751
 2010-10-18 21:28:00 +00:00
Dan Gohman
71af9db0e8 Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM. 
llvm-svn: 116743
 2010-10-18 20:44:50 +00:00
Dan Gohman
f3702452c8 Fix BasicAA to pass TBAAInfo through to the chained analysis. 
llvm-svn: 116730
 2010-10-18 18:45:11 +00:00
Dan Gohman
33fcde9b9c Make TypeBasedAliasAnalysis default to doing nothing, with a command-line 
option to enable it.

llvm-svn: 116722
 2010-10-18 18:17:47 +00:00
Dan Gohman
f0a3bed6d6 Use chaining in TypeBasedAliasAnalysis::pointsToConstantMemory. 
llvm-svn: 116721
 2010-10-18 18:10:31 +00:00
Dan Gohman
02538ac4d3 Make BasicAliasAnalysis a normal AliasAnalysis implementation which 
does normal initialization and normal chaining. Change the default
AliasAnalysis implementation to NoAlias.

Update StandardCompileOpts.h and friends to explicitly request
BasicAliasAnalysis.

Update tests to explicitly request -basicaa.

llvm-svn: 116720
 2010-10-18 18:04:47 +00:00
Benjamin Kramer
1dc34b48dd Eliminate some calls to Value::getNameStr. 
llvm-svn: 116670
 2010-10-16 11:28:23 +00:00
Dan Gohman
31a01ee3cb Tolerate a null parent pointer. 
llvm-svn: 116533
 2010-10-14 22:55:57 +00:00
Chris Lattner
698661c741 add uadd_ov/usub_ov to apint, consolidate constant folding 
logic to use the new APInt methods.  Among other things this
implements rdar://8501501 - llvm.smul.with.overflow.i32 should constant fold

which comes from "clang -ftrapv", originally brought to my attention from PR8221.

llvm-svn: 116457
 2010-10-14 00:05:07 +00:00
Owen Anderson
c266a36625 Analysis groups need to initialize their default implementations. 
llvm-svn: 116441
 2010-10-13 21:49:58 +00:00
Tobias Grosser
4b0986b6c1 Add Region::isTopLevelRegion(). 
llvm-svn: 116402
 2010-10-13 11:02:44 +00:00
Tobias Grosser
4c71c117d1 RegionInfo: Fix trivial error that slipped in last minute. 
llvm-svn: 116400
 2010-10-13 08:00:53 +00:00
Tobias Grosser
fe92a9384e RegionInfo: Update RegionInfo after a BB was split. 
llvm-svn: 116398
 2010-10-13 05:54:13 +00:00
Tobias Grosser
a8677226ab RegioInfo: Add getExpandedRegion(). 
getExpandedRegion() enables us to create non canonical regions. Those regions
can be used to define the largerst region, that fullfills a certain property.

llvm-svn: 116397
 2010-10-13 05:54:11 +00:00
Tobias Grosser
648594c920 RegionInfo: Allow to update exit and entry of a region. 
llvm-svn: 116396
 2010-10-13 05:54:10 +00:00
Tobias Grosser
bf984fd78e RegionInfo: Enhance addSubregion. 
llvm-svn: 116395
 2010-10-13 05:54:09 +00:00
Tobias Grosser
8352ce5f8d RegionInfo: Allow to set the parent region of a basic block. 
llvm-svn: 116394
 2010-10-13 05:54:07 +00:00
Tobias Grosser
e910b9d9cd RegionInfo: Free the RegionNodes in cache. 
Contributed by: ether

llvm-svn: 116380
 2010-10-13 00:07:59 +00:00
Owen Anderson
8ac477ffb5 Begin adding static dependence information to passes, which will allow us to 
perform initialization without static constructors AND without explicit initialization
by the client.  For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve.  I hope to be able to relax
the latter requirement in the future.

llvm-svn: 116334
 2010-10-12 19:48:12 +00:00
Dan Gohman
a8d3a7f93d Support AA chaining. 
llvm-svn: 116264
 2010-10-11 23:39:34 +00:00
Kenneth Uildriks
b8d7efe785 Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization. 
llvm-svn: 116158
 2010-10-09 22:06:36 +00:00
Kenneth Uildriks
99463ca8cf Start separating out code metrics into code size metrics and code performance metrics. Partial Specialization will apply the former to function specializations, and the latter to all callsites that can use a specialization, in order to decide whether to create a specialization 
llvm-svn: 116057
 2010-10-08 13:57:31 +00:00
Owen Anderson
df7a4f2515 Now with fewer extraneous semicolons! 
llvm-svn: 115996
 2010-10-07 22:25:06 +00:00
Owen Anderson
98eb3ec6c5 Add an implementation of the initialization routine for IPA. 
llvm-svn: 115947
 2010-10-07 18:31:27 +00:00
Owen Anderson
6875c2ea26 Add initialization routines for Analysis and IPA. 
llvm-svn: 115946
 2010-10-07 18:31:00 +00:00
Owen Anderson
82d38df40c Fix a warning when building with clang++. 
llvm-svn: 115924
 2010-10-07 17:04:18 +00:00
Owen Anderson
5e19bfcde3 Move the pass initialization helper functions into the llvm namespace, and add 
a header declaring them all.  This is also where we will declare per-library pass-set
initializer functions down the road.

llvm-svn: 115900
 2010-10-07 04:13:08 +00:00
Owen Anderson
af08ad4350 Appease the clang self-host buildbot by providing a correct instantiation. 
llvm-svn: 115857
 2010-10-06 22:23:20 +00:00
Owen Anderson
ad8134f03b Hide analysis group registration behind a macro, just like pass registration. 
llvm-svn: 115835
 2010-10-06 21:02:27 +00:00
Devang Patel
9a33ec24eb Add support for DW_TAG_unspecified_parameters. 
llvm-svn: 115833
 2010-10-06 20:50:40 +00:00
Dan Gohman
8e4c19ac44 Don't add the operand count to SCEV uniquing data; FoldingSetNodeID 
already knows its own length, so this is redundant.

llvm-svn: 115521
 2010-10-04 17:24:08 +00:00
Devang Patel
bea08d1c85 Let FE mark a variable as artificial variable. 
llvm-svn: 115102
 2010-09-29 23:07:21 +00:00
Devang Patel
95ae73c394 Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial. 
This is a backword compatible change.

llvm-svn: 115084
 2010-09-29 21:04:46 +00:00
Benjamin Kramer
923a8cf356 Remove PointerTracking from cmakelists … 
llvm-svn: 115076
 2010-09-29 19:39:50 +00:00
Chris Lattner
af995f0ee5 remove PointerTracking from mainline, Edwin is going to move it out to ClamAV 
for LLVM 2.9

llvm-svn: 115062
 2010-09-29 18:43:27 +00:00
Oscar Fuentes
b4b12535e8 Removed a bunch of unnecessary target_link_libraries. 
llvm-svn: 114999
 2010-09-28 22:39:14 +00:00
Devang Patel
7a55481fa4 Provide an interface to let FEs anchor debug info for types. 
llvm-svn: 114969
 2010-09-28 18:08:20 +00:00