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92826def59
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3530 Commits

Author SHA1 Message Date
Duncan Sands
92826def59 Add simplification of floating point comparisons with the result 
of a select instruction, the same as already exists for integer
comparisons.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118379 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-07 16:46:25 +00:00
Duncan Sands
1ac7c9979a Fix a README item: when doing a comparison with the result 
of a select instruction, see if doing the compare with the
true and false values of the select gives the same result.
If so, that can be used as the value of the comparison.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118378 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-07 16:12:23 +00:00
Benjamin Kramer
42c9b25554 Use arrays instead of constant-sized SmallVectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118257 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 18:45:27 +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
b71bbf9ec1 Fix DIType verifier. The element 3 is DIFile now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118054 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-02 20:41:13 +00:00
Dan Gohman
e60dcb5e97 Make ScalarEvolution::forgetLoop forget all contained loops too, because 
they may have ValuesAtScopes map entries referencing their outer loops.
This fixes a user-after-free reported in PR8471.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 20:16:10 +00:00
Dan Gohman
cd5c123a1d Teach memdep to use pointsToConstantMemory to determine that loads 
from constant memory don't alias any stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117636 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 01:14:04 +00:00
Dan Gohman
87c5c2f069 Support TBAA attachments on calls. This is somewhat experimental. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 21:38:20 +00:00
Dan Gohman
0b2136927d Fix chaining in TBAA's pointsToConstantMemory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 21:24:55 +00:00
Dan Gohman
ae92af6771 Only read one bit for testing for a readonly type, leaving the other 
bits open for future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117301 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 20:22:29 +00:00
Dan Gohman
269008ee83 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 19:47:25 +00:00
Dan Gohman
e46a3881fc Update comments; BasicAA is no longer necessarily the end of the chain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117268 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 16:29:52 +00:00
Dan Gohman
852dda4625 Reintroduce these asserts, now that BasicAA is a normal AliasAnalysis pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117266 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 16:28:57 +00:00
Benjamin Kramer
a3ac427507 Make some symbols static, move classes into anonymous namespaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-22 17:35:07 +00:00
Dan Gohman
ee135131b1 Add some more documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117070 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 21:55:35 +00:00
Dan Gohman
bc078c81e6 Explain what "constant" means here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 19:45:09 +00:00
Dan Gohman
de38897cfc Update comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117048 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 19:01:22 +00:00
Dan Gohman
adb30d211b Memdep says that an instruction clobbers itself 
when it means there is no specific clobber instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116960 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 22:37:41 +00:00
Dan Gohman
ba13864483 Factor out the main aliasing check into a separate function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 22:11:14 +00:00
Dan Gohman
0b62f95ea8 Fix comments; the type graph is currently a tree, not a DAG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116954 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 22:02:58 +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
Douglas Gregor
3e26c3c7d4 Fix CMake build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116903 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 01:36:56 +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
4cccb87b4d Change AliasAnalysis and its clients to use uint64_t instead of unsigned 
for representing object sizes, for consistency with other parts of LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116831 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 18:00:02 +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
f3a925dc7a Consistently use AliasAnalysis::UnknownSize instead of hardcoding ~0u. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 17:06:23 +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
Dan Gohman
6cc7c9b8fc Fix BasicAA to pass TBAAInfo through to the chained analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:45:11 +00:00
Dan Gohman
01b58f637c Make TypeBasedAliasAnalysis default to doing nothing, with a command-line 
option to enable it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:17:47 +00:00
Dan Gohman
acf50f5136 Use chaining in TypeBasedAliasAnalysis::pointsToConstantMemory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:10:31 +00:00
Dan Gohman
c1be92f3bb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:04:47 +00:00
Benjamin Kramer
af81235ef9 Eliminate some calls to Value::getNameStr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116670 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-16 11:28:23 +00:00
Dan Gohman
c05d8aa6db Tolerate a null parent pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116533 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-14 22:55:57 +00:00
Chris Lattner
eafc5cb80d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-14 00:05:07 +00:00
Owen Anderson
325e264355 Analysis groups need to initialize their default implementations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 21:49:58 +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
c502101000 RegionInfo: Fix trivial error that slipped in last minute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 08:00:53 +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
Tobias Grosser
67be08a2f1 RegionInfo: Free the RegionNodes in cache. 
Contributed by: ether

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 00:07:59 +00:00
Owen Anderson
2ab36d3502 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-12 19:48:12 +00:00
Dan Gohman
633e702317 Support AA chaining. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116264 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-11 23:39:34 +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