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1790 Commits

Author SHA1 Message Date
Dan Gohman
ec9b4ac914 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:20:27 +00:00
Devang Patel
62367045a4 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:19:21 +00:00
Dan Gohman
075fb5d68f Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:37:15 +00:00
Dan Gohman
e88ccb545d Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite 
their comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:30:00 +00:00
Dan Gohman
b395e4a026 Fix a copy+pasto Duncan noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:18:23 +00:00
Dan Gohman
68a6056daf Add a doesAccessArgPointees helper function, and update code to use 
it, and to be consistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:17:28 +00:00
Dan Gohman
432d08cbdb Factor out the code for testing whether a function accesses 
arbitrary memory into a helper function, and adjust some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:34:04 +00:00
Dan Gohman
50bcaece67 Give NonLocalDepResult a NonLocalDepEntry member, replacing 
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:15:52 +00:00
Dan Gohman
42c31a7073 Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:02:18 +00:00
Dan Gohman
50a04d067f Convert comments to doxygen syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:33:57 +00:00
Dan Gohman
4a53f37a1a AccessesArgumentsReadonly is read-only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:50:00 +00:00
Dan Gohman
db78c4873e Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsic 
property IntrReadArgMem can be modeled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:48:55 +00:00
Dan Gohman
467a0adfc8 Factor out the logic for onlyReadsMemory into a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118611 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:43:24 +00:00
Dan Gohman
7293ac1281 Delete AccessesArgumentsAndGlobals, which was unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:41:37 +00:00
Dan Gohman
902da265f6 Add some comments noting some correspondences between ModRefBehavior 
values, LLVM IR function attributes, and LLVM intrinsic attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 23:46:02 +00:00
Devang Patel
2c4c6a5e8a Document parameters. Fix typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118424 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 18:28:34 +00:00
Dan Gohman
a25e5dbcc2 Extend the AliasAnalysis::pointsToConstantMemory interface to allow it 
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 16:45:26 +00:00
Dan Gohman
c80cbf2540 Delete getIntrinsicModRefBehavior. Clients can just use the normal 
getModRefBehavior now, since it now understands intrinsics as well
as normal functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 16:11:19 +00:00
Dan Gohman
6c25c920e6 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 15:34:42 +00:00
Devang Patel
35fcd6557f Introduce DIBuilder. It is intended to be a front-end friendly interface to emit debuggging information entries in LLVM IR. 
To create debugging information for a pointer, using DIBUilder front-end just needs
	DBuilder.CreatePointerType(Ty, Size);
instead of
	DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type,
                                       TheCU, "", getOrCreateMainFile(),
                                       0, Size, 0, 0, 0, OCTy);



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 15:01:38 +00:00
Devang Patel
ab70ed41f3 Add getFile() to get DIFile of a DIType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 14:56:34 +00:00
Devang Patel
0e82ac07bc Simplify. 
-      DIFile F = getFieldAs<DIFile>(6); 
-      return F.getDirectory();
+      return getFieldAs<DIFile>(6).getDirectory(); 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 16:42:37 +00:00
Devang Patel
fb9dce3806 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:41:11 +00:00
Devang Patel
8f6a281e97 Backward compatibility. Gracefully handle older versions of debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:08:13 +00:00
Devang Patel
bc2bb9bbd0 Do not work too hard to find type's file info. There is a special field to record file info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:50:08 +00:00
Devang Patel
42d3a34575 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:40:13 +00:00
Devang Patel
a514a4e172 Do not rely on context to find file info. It is already provided as a separate field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:14:28 +00:00
Devang Patel
f95a271922 Give a name to nameless argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 18:08:31 +00:00
Benjamin Kramer
a53fe6070c SmallVectorize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-23 17:10:24 +00:00
Tobias Grosser
6551360535 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116905 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 01:54:44 +00:00
Dan Gohman
db4708cf86 Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that 
it doesn't have a special relationship with BasicAliasAnalysis
anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 23:09:08 +00:00
Dan Gohman
3da848bbda Reapply r116831 and r116839, converting AliasAnalysis to use 
uint64_t, plus fixes for places I missed before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 22:54:46 +00:00
Dan Gohman
1db839e734 Revert r116831 and r116839, which are breaking selfhost builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 21:06:16 +00:00
Dan Gohman
9cb4c7f878 Oops, check in all the files for converting AliasAnalysis to 
use uint64_t.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116839 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 18:08:27 +00:00
Owen Anderson
081c34b725 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 17:21:58 +00:00
Dan Gohman
eee5400442 Make the representation of AliasSets explicitly differentiate 
between "not known yet" and "known no tbaa info" so that it
can merge them properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 23:31:47 +00:00
Dan Gohman
fb8096dee5 Don't pass the raw invalid pointer used to represent conflicting 
TBAA information to AliasAnalysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 21:28:00 +00:00
Dan Gohman
a8702eaf78 Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 20:44:50 +00:00
Benjamin Kramer
e98fbba91f Remove noisy semicolon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116407 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 15:55:12 +00:00
Tobias Grosser
b227930cd6 Add Region::isTopLevelRegion(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 11:02:44 +00:00
Tobias Grosser
592316c419 RegionInfo: Update RegionInfo after a BB was split. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:13 +00:00
Tobias Grosser
c69bd733c0 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:11 +00:00
Tobias Grosser
4bcc0228dc RegionInfo: Allow to update exit and entry of a region. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116396 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:10 +00:00
Tobias Grosser
9649390e1f RegionInfo: Enhance addSubregion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:09 +00:00
Tobias Grosser
9ee5c50776 RegionInfo: Allow to set the parent region of a basic block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:07 +00:00
Kenneth Uildriks
74fa7327d6 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 22:06:36 +00:00
Kenneth Uildriks
ca52c8ba12 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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 13:57:31 +00:00
Devang Patel
7b172c6ae6 Provie a clearner interface so that FE can decide whether a function has prototype or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:03:01 +00:00
Devang Patel
d6747df5e0 Add support for DW_TAG_unspecified_parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115833 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 20:50:40 +00:00
Dan Gohman
14e8190f43 Constify isReachableFromEntry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 15:49:14 +00:00
Devang Patel
21ea1d5b4c Add support to let FE mark explict methods as explict in debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115378 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-01 23:31:40 +00:00
Devang Patel
3cf763dc7a Let FE mark a variable as artificial variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:07:21 +00:00
Devang Patel
1a30123b60 Add support to let FE encode method access specifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115089 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 21:44:16 +00:00
Devang Patel
9dd2b47d44 Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial. 
This is a backword compatible change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115084 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 21:04:46 +00:00
Chris Lattner
3c99c769eb remove PointerTracking from mainline, Edwin is going to move it out to ClamAV 
for LLVM 2.9


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 18:43:27 +00:00
Devang Patel
1a7ca0354a Provide an interface to let FEs anchor debug info for types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 18:08:20 +00:00
Dan Gohman
e6098b6205 Constify properlyDominates in the same manner as dominates. 
Add constified overloads for findNearestCommonDominator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114834 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 16:33:31 +00:00
Dan Gohman
4c6809d8e3 Remove WriteGraph's Name argument, which it didn't use, and 
rename writeHeader's Name argument to Title, to be consistent
with WriteGraph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 15:34:19 +00:00
Oscar Fuentes
429c75b865 Avoid warnings about implicit conversions to `bool' in MSVC. This time 
for real.

Patch by Nathan Jeffords!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114796 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 20:27:36 +00:00
Dan Gohman
bea77bb6e8 Fix uninitialized TBAAFlag field values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:18:07 +00:00
Dan Gohman
c1ac0d7623 Teach memdep about TBAA tags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 21:41:02 +00:00
Dan Gohman
ba6ca6dd3b Constify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114574 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 20:11:43 +00:00
Dan Gohman
9f27074f42 Add some utility routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114483 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 21:20:13 +00:00
Benjamin Kramer
28b4afc103 Make CreateComplexVariable independent of SmallVector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 16:00:03 +00:00
Dan Gohman
ead0109f5b Add a pass which prints out all the memdep dependencies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 22:08:32 +00:00
Owen Anderson
4e282decf3 Revert r114097, adding back in the assertion against replacing an Instruction by itself. Now that CorrelatedValuePropagation is 
more careful not to call SimplifyInstructionsInBlock() on an unreachable block, the issue has been fixed at a higher level.  Add
a big warning to SimplifyInstructionsInBlock() to hopefully prevent this in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114117 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 20:51:41 +00:00
Dan Gohman
b2143b6247 Remove the experimental AliasAnalysis::getDependency interface, which 
isn't a good level of abstraction for memdep. Instead, generalize
AliasAnalysis::alias and related interfaces with a new Location
class for describing a memory location. For now, this is the same
Pointer and Size as before, plus an additional field for a TBAA tag.

Also, introduce a fixed MD_tbaa metadata tag kind.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-14 21:25:10 +00:00
Gabor Greif
e2d50046fd typoes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113647 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 22:25:58 +00:00
Owen Anderson
f9a26b89f8 What the loop unroller cares about, rather than just not unrolling loops with calls, is 
not unrolling loops that contain calls that would be better off getting inlined.  This mostly
comes up when an interleaved devirtualization pass has devirtualized a call which the inliner
will inline on a future pass.  Thus, rather than blocking all loops containing calls, add
a metric for "inline candidate calls" and block loops containing those instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113535 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 20:32:23 +00:00
Dan Gohman
c8ddbdabb6 Extend the getDependence query with support for PHI translation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:37:31 +00:00
Dan Gohman
c48bf0c394 Fix this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 18:04:22 +00:00
Owen Anderson
082bf2a977 Refactor code-size reduction estimation methods out of InlineCostAnalyzer and into CodeMetrics. They 
don't use any InlineCostAnalyzer state, and are useful for other clients who don't necessarily want to use
all of InlineCostAnalyzer's logic, some of which is fairly inlining-specific.

No intended functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113499 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 16:56:42 +00:00
Dan Gohman
65924111bf Add a new experimental generalized dependence query interface to 
AliasAnalysis, and some code for implementing the new query on top of
existing implementations by making standard alias and getModRefInfo
queries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113329 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-08 01:32:20 +00:00
Dan Gohman
fa6cb8d821 Tidy up the getModRefInfo declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113275 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-07 20:37:47 +00:00
Chris Lattner
adc799112d pull a simple method out of LICM into a new 
Loop::hasLoopInvariantOperands method. Remove
a useless and confusing Loop::isLoopInvariant(Instruction)
method, which didn't do what you thought it did.

No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-06 01:05:37 +00:00
Dan Gohman
191bd64a39 Revert 112442 and 112440 until the compile time problems introduced 
by 112440 are resolved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 01:45:53 +00:00
Dan Gohman
39429e2b51 Update the descriptions of NoModRef and ModRef to be consistent 
with the descriptions of Mod and Ref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-30 23:47:24 +00:00
Chris Lattner
cb7f653422 two changes: 1) make AliasSet hold the list of call sites with an 
assertingvh so we get a violent explosion if the pointer dangles.

2) Fix AliasSetTracker::deleteValue to remove call sites with
   by-pointer comparisons instead of by-alias queries.  Using
   findAliasSetForCallSite can cause alias sets to get merged
   when they shouldn't, and can also miss alias sets when the
   call is readonly.

#2 fixes PR6889, which only repros with a .c file :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:42:23 +00:00
Dan Gohman
eaa40ff74e Make IVUsers iterative instead of recursive. 
This has the side effect of reversing the order of most of
IVUser's results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112442 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 16:40:03 +00:00
Dan Gohman
e8ac3f3be4 Switch ScalarEvolution's main Value*->SCEV* map from std::map 
to DenseMap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-27 18:55:03 +00:00
Eric Christopher
2177a04e24 Fix header define to reflect the name of the file. 
Patch by Adam Treat!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112077 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 19:28:39 +00:00
Devang Patel
0c4720c6bd Handle qualified constants that are directly folded by FE. 
PR 7920.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-23 18:25:56 +00:00
Dan Gohman
a3833f18bf CreateTemporaryType doesn't needs its Context argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-20 22:39:47 +00:00
Dan Gohman
489b29b0a4 Introduce a new temporary MDNode concept. Temporary MDNodes are 
not part of the IR, are not uniqued, and may be safely RAUW'd.
This replaces a variety of alternate mechanisms for achieving
the same effect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111681 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-20 22:02:26 +00:00
Chris Lattner
30963fbe8f move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

Now with less tree breakingness.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:07:29 +00:00
Daniel Dunbar
4ae56d725d Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The 
form of", it doesn't pass tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111385 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:43:08 +00:00
Owen Anderson
00ac77ef88 Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:39:01 +00:00
Chris Lattner
6b63037306 move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:22:17 +00:00
Dan Gohman
7d0e3c01f3 Revert r111031. The way LLVM defines loop invariance, the property of an 
expression being loop invariant is not equivalent to the property of
properly dominating the loop header.

Other optimizations have also made this optimization less important.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 17:34:25 +00:00
Dan Gohman
081ad68e68 Placate overzealous compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 17:01:55 +00:00
Dan Gohman
2f199f9952 Move SCEVNAryExpr's virtual member functions out of line, and convert 
them to iterators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111140 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:21:27 +00:00
Dan Gohman
aadb5f5adb Specialize FoldingSetTrait<SCEV>, providing implementations of node 
comparison and hash computation which don't require constructing
temporary ID values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 15:31:45 +00:00
Dan Gohman
ef0bedaba7 Implement hasComputableLoopEvolution for Add, Mul, and Trunc operators, 
since they can support trivial implementations. This avoids potentially
expensive traversals of the operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-13 20:03:15 +00:00
Dan Gohman
bd4d66d56a Make LoopPass::getContainedPass return a LoopPass* instead of a Pass* 
and remove casts from all its callers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-11 20:34:43 +00:00
Dan Gohman
af08a36bd6 Rename and reorder the arguments to isImpliedCond, for consistency and clarity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-10 23:46:30 +00:00
Devang Patel
6bf058c9aa Add missing argument. CreateCompositeTypeEx() users, please verify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110717 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-10 20:22:49 +00:00
Devang Patel
2739896cdd Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110607 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-09 21:39:24 +00:00
Dan Gohman
8d570bf8e9 Remove assignPassManager's default arguments. It's really 
confusing to have different arguments for the same virtual
function at different levels of the class hierarchy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-07 01:25:32 +00:00
Dan Gohman
4bdeede8c7 Tidy up PMStack. Add a bunch of consts, use std::vector instead of 
std::deque, since this is a stack and only supports push/pop on
one end, and remove an unimplemented declaration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110495 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-07 00:53:01 +00:00
Owen Anderson
90c579de5a Reapply r110396, with fixes to appease the Linux buildbot gods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-06 18:33:48 +00:00
Dan Gohman
e26a7b5e21 Implement a proper getModRefInfo for va_arg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110458 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-06 18:24:38 +00:00
Dan Gohman
13214eb8cc Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110426 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-06 02:04:07 +00:00
Owen Anderson
1f74590e9d Revert r110396 to fix buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-06 00:23:35 +00:00
Dan Gohman
cb74993bdc Make AA private, since subclasses shouldn't (aren't don't) access it directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-05 23:44:45 +00:00
Owen Anderson
9ccaf53ada Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static 
ID member as the sole unique type identifier.  Clean up APIs related to this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-05 23:42:04 +00:00
Dan Gohman
f66514ad3a Delete obsolete comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110277 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-04 23:08:15 +00:00
Torok Edwin
e89652ccad Add a missing function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110195 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-04 11:42:45 +00:00
Dan Gohman
a41af344c2 Remove PointerAccessInfo, which nothing was using. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 23:08:10 +00:00
Dan Gohman
79fca6fea8 Thread const correctness through a bunch of AliasAnalysis interfaces and 
eliminate several const_casts.

Make CallSite implicitly convertible to ImmutableCallSite.

Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 21:48:53 +00:00
Dan Gohman
e53e3772f3 Update some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 01:07:32 +00:00
Dan Gohman
ef1cfac9e5 Introduce a symbolic constant for ~0u for use with AliasAnalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 01:03:11 +00:00
Dan Gohman
847a84efd2 Add a convenient form of AliasAnalysis::alias for the case where the sizes 
are unknown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110090 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 00:56:30 +00:00
Dan Gohman
ab37f50838 Make SCEVUnknown a CallbackVH, so that it can be notified directly 
of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.

This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110086 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 23:49:30 +00:00
Dan Gohman
c182cb5784 Sketch up a preliminary Type-Based Alias Analysis implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110077 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 23:11:01 +00:00
Devang Patel
5b164b5a5c Add explicit constructors. Patch by Renato Golin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110072 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 22:51:46 +00:00
Nick Lewycky
b2bdf941f6 LibCallAliasAnalysis uses multiple inheritance, so it needs to implement 
getAdjustedAnalysisPointer. Part of a fix to PR7760.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-30 20:19:09 +00:00
Eric Christopher
e6cbfa6b09 Speculatively revert r109705 since it seems to be causing some build bot 
angst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 01:25:38 +00:00
Dan Gohman
c6743207e2 Factor out some of the code for updating old SCEVUnknown values, and 
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.

Add a ScalarEvolution unittest to test for this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 00:17:55 +00:00
Dan Gohman
dc7a235363 Add some extra friend declarations to fix a gcc-4.0 compile error. 
This is a temporary fix, until more elaborate changes are ready.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 17:09:24 +00:00
Dan Gohman
f374ba2bcd Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 00:21:18 +00:00
Tobias Grosser
0e6fcf4be3 RegionInfo: Add getMaxRegionExit() 
getMaxRegionExit returns the exit of the maximal refined region starting
at a specific basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 08:39:43 +00:00
Tobias Grosser
082d587d35 Add function to query RegionInfo about loops. 
* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 04:17:13 +00:00
Dan Gohman
ab28928fe2 Use AssertingVH for InsertedValues and InsertedPostIncValues, to verify 
that the values they refer to aren't being deleted underneath them.

Make sure these containters get cleared by clear(), which IndVarSimplify
and LSR both use before deleting instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109478 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 01:19:06 +00:00
Owen Anderson
cfa7fb6df5 Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109424 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 18:48:03 +00:00
Dan Gohman
f8336a75c2 Eliminate getCanonicalInductionVariableIncrement's last user and 
eliminate it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109270 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 21:34:51 +00:00
Tobias Grosser
f96b006367 Add new RegionInfo pass. 
The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109089 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 07:46:31 +00:00
Dan Gohman
872814ae04 Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 18:54:18 +00:00
Jakob Stoklund Olesen
6a0dc079ef Implement loop splitting analysis. 
Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 21:46:58 +00:00
Dan Gohman
7c58dbd88c Make getOrInsertCanonicalInductionVariable guarantee that its 
result is a PHINode*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 16:44:52 +00:00
Stuart Hastings
0db4271069 Correct line info for declarations/definitions. Radar 8063111. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 23:56:30 +00:00
Lang Hames
9258318730 Switched to array_pod_sort as per Chris's suggestion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 09:21:53 +00:00
Lang Hames
60f422f894 LoopSplitter - intended to split live intervals over loop boundaries. 
Still very much under development. Comments and fixes will be forthcoming.

(This commit includes some small tweaks to LiveIntervals & LoopInfo to support the splitter)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 07:34:01 +00:00
Tobias Grosser
9a7b37b8a3 Add dump() to DominanceFrontier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-16 05:59:39 +00:00
Eric Christopher
0764e39a92 80-columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-13 05:50:08 +00:00
Eric Christopher
6c50792653 Remove tab characters and 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108127 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 05:26:37 +00:00
Gabor Greif
7c71b81a4f fix clang selfhost issue (shadowing) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-09 14:46:49 +00:00
Gabor Greif
e07c3c46d0 refactor type expressions and cache operator*'s result 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-09 14:00:56 +00:00
Gabor Greif
8fe5ccc585 two more cases of reuse result of operator*, found by inspection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107961 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-09 10:42:13 +00:00
Gabor Greif
4fd6b39703 another case of reuse result of operator*, it is expensive to recompute 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107960 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-09 10:32:31 +00:00
Gabor Greif
f6c166078f reuse result of operator*, it is expensive to recompute 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107959 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-09 09:50:51 +00:00
Stuart Hastings
99cfb69f17 Reverting r107918 and r107919. Radar 8063111. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 23:25:39 +00:00
Stuart Hastings
c0e2639a34 Fix decl/def debug info for template functions. Radar 8063111. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 22:28:59 +00:00
Gabor Greif
da995609e6 only dereference iterator once in the loop 
(by caching the result we save a potentially expensive dereference)

also use typedefs to shorten type declarations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 16:56:18 +00:00
Duncan Sands
2dac4c1b51 Use std::vector rather than SmallVector here because SmallVector 
causes some versions of gcc to crash when building LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107869 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 13:06:08 +00:00
Duncan Sands
a0994b1a13 Do not use std::stack because it causes obscure failures when 
compiled with MSVC 2010 (PR7367).  Instead use a SmallVector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107867 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 11:54:27 +00:00
Dan Gohman
9e86f4364b Remove interprocedural-basic-aa and associated code. The AliasAnalysis 
interface needs implementations to be consistent, so any code which
wants to support different semantics must use a different interface.
It's not currently worthwhile to add a new interface for this new
concept.

Document that AliasAnalysis doesn't support cross-function queries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107776 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-07 14:27:09 +00:00
Dan Gohman
43b8fd728b Document that BasicAA respects noalias, while InterproceduralBasicAA 
does not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-02 23:52:36 +00:00
Dan Gohman
541481f34c Remove an unused enum. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107507 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-02 20:20:50 +00:00
Dan Gohman
6be2bd516a Add an Intraprocedural form of BasicAliasAnalysis, which aims to 
properly handles instructions and arguments defined in different
functions, or across recursive function iterations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-29 00:50:39 +00:00
Dan Gohman
8d121694a3 Generalize AAEval so that it can be used both per-function and 
interprocedurally. Note that as of this writing, existing alias
analysis passes are not prepared to be used interprocedurally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-28 16:01:37 +00:00