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Author SHA1 Message Date
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
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
Owen Anderson
ce665bd2e2 Now with fewer extraneous semicolons! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115996 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:25:06 +00:00
Owen Anderson
1c8820d8d8 Add an implementation of the initialization routine for IPA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115947 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 18:31:27 +00:00
Owen Anderson
861f4c38de Add initialization routines for Analysis and IPA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 18:31:00 +00:00
Owen Anderson
745c872bb5 Fix a warning when building with clang++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115924 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 17:04:18 +00:00
Owen Anderson
71802344fc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115900 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 04:13:08 +00:00
Owen Anderson
9875903799 Appease the clang self-host buildbot by providing a correct instantiation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115857 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 22:23:20 +00:00
Owen Anderson
e9ef41a47d Hide analysis group registration behind a macro, just like pass registration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115835 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 21:02:27 +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
7a391832f4 Don't add the operand count to SCEV uniquing data; FoldingSetNodeID 
already knows its own length, so this is redundant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 17:24:08 +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
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
Benjamin Kramer
f513ab8b77 Remove PointerTracking from cmakelists … 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 19:39:50 +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
Oscar Fuentes
3609eb0de2 Removed a bunch of unnecessary target_link_libraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114999 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 22:39:14 +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
Jakob Stoklund Olesen
1f386c4ce1 Don't try to constant fold libm functions with non-finite arguments. 
Usually we wouldn't do this anyway because llvm_fenv_testexcept would return an
exception, but we have seen some cases where neither errno nor fenv detect an
exception on arm-linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:29:20 +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
Benjamin Kramer
a53557e4fb Simplify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 16:41:29 +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
Jakob Stoklund Olesen
38cb1cdfb7 Don't include <fenv.h> now that we have llvm/System/FEnv.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-17 21:47:03 +00:00
Dan Gohman
3f2f21e640 Attempt to support platforms which don't have fenv.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114196 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-17 20:06:27 +00:00
Dan Gohman
8ee731f2ce Fix the folding of floating-point math library calls, like sin(infinity), 
so that it detects errors on platforms where libm doesn't set errno.
It's still subject to host libm details though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-17 01:38:06 +00:00
Dan Gohman
8945db73d1 Add an #include of raw_ostream.h. Previously, this only compiled 
because it was using Twine.h's declaration of operator<<(const Twine &).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-17 00:33:43 +00:00
Benjamin Kramer
fc24c1a7ba Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114128 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 23:06:18 +00:00
Dan Gohman
a627e9bfcd Rename a variable to avoid a declaration conflict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114126 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 22:50:09 +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
Owen Anderson
c2ce21ad51 It is possible, under specific circumstances involving ptrtoint ConstantExpr's, for LVI to end up trying to merge 
a Constant into a ConstantRange.  Handle this conservatively for now, rather than asserting.  The testcase is
more complex that I would like, but the manifestation of the problem is sensitive to iteration orders and the state of the
LVI cache, and I have not been able to reproduce it with manually constructed or simplified cases.

Fixes PR8162.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114103 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 18:28:33 +00:00
Owen Anderson
4b91c3ac96 Fix PR8161, in which an unreachable loop causes recursive instruction simplification to try 
to replace an instruction with itself.  Add a predicate to the simplifier to prevent this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114097 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 17:42:36 +00:00
Eli Friedman
39e30124e5 PR7959: Handle negative scales in GEPs correctly in BasicAA for non-64-bit 
targets.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-15 20:08:03 +00:00
Dan Gohman
e6291ae96e Convert TBAA to use the new TBAATag field of AliasAnalysis::Location. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113892 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-14 23:28:12 +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
Michael J. Spencer
3a210e2d30 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally." 
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113819 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-13 23:59:48 +00:00
Benjamin Kramer
6844c8ea5a Teach InstructionSimplify to fold (A & B) & A -> A & B and (A | B) | A -> A | B. 
Reassociate does this but it doesn't catch all cases (e.g. if the operands are i1).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 22:39:55 +00:00
Michael J. Spencer
4e9c939312 CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113632 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-10 21:14:25 +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
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
Owen Anderson
6bcd3a0265 Clean up some of the PassRegistry implementation, and pImpl-ize it to reduce #include clutter 
and exposing internal details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113252 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-07 19:16:25 +00:00
Nick Lewycky
198381e542 Add completely hokey binary-and and binary-or operations to ConstantRange and 
teach LazyValueInfo to use them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113196 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-07 05:39:02 +00:00
Chris Lattner
09981982f1 cleanup some of the lifetime/invariant marker stuff, add a big fixme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-06 03:58:04 +00:00
Chris Lattner
c5a5cf26fd speed up -gvn 3.4% on the testcase in PR7023 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113135 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-06 01:26:29 +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
Chris Lattner
e971131695 fix PR8063, a crash in globalopt in the malloc analysis code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-05 17:20:46 +00:00
Chris Lattner
ab2cee6d51 dead method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113077 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-04 18:19:16 +00:00
Chris Lattner
17aa68055b zap dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-04 18:12:00 +00:00
Dan Gohman
46ffb231c6 Disable the asserts that check that normalization is perfectly 
invertible. ScalarEvolution's folding routines don't always succeed
in canonicalizing equal expressions to a single canonical form, and
this can cause these asserts to fail, even though there's no actual
correctness problem. This fixes PR8066.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-03 22:12:56 +00:00
Owen Anderson
1593dd6779 Add support for simplifying a load from a computed value to a load from a global when it 
is provable that they're equivalent.  This fixes PR4855.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-03 19:08:37 +00:00
Chris Lattner
831c8ec016 stop forcing a noop AssemblyAnnotationWriter to silence #uses 
comments, these don't happen anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112901 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-02 23:03:10 +00:00
Owen Anderson
4caef6001d Remove incorrect and poorly tested code for trying to reason about values on default edges of 
switches.  Just return the conservatively correct answer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-02 22:16:52 +00:00
Owen Anderson
66048c2169 Fix a bug in LazyValueInfo that CorrelatedValuePropagation exposed: In the LVI lattice, undef and the full set ConstantRange should not 
be treated as equivalent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-02 18:23:58 +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
3f19c091bf Reapply r112432, now that the real problem is addressed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:53:17 +00:00