Commit Graph

23 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
Owen Anderson
d8cc7be026 Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109058 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 23:07:00 +00:00
Owen Anderson
8be3291f59 Speculatively revert r108813, in an attempt to get the self-host buildbots working again. I don't see why this patch
would cause them to fail the way they are, but none of the other intervening patches seem likely either.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 08:26:15 +00:00
Owen Anderson
9e081004da Reapply r108794, a fix for the failing test from last time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 06:52:42 +00:00
Daniel Dunbar
e8a469cdb4 Revert r108794, "Separate PassInfo into two classes: a constructor-free
superclass (StaticPassInfo) and a constructor-ful subclass (PassInfo).", it is
breaking teh everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108805 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 03:06:07 +00:00
Owen Anderson
8ba15cb709 Separate PassInfo into two classes: a constructor-free superclass (StaticPassInfo) and a constructor-ful subclass (PassInfo).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 01:19:58 +00:00
Dan Gohman
49bda917db Rework scev-aa's basic computation so that it doesn't depend
on ScalarEvolution successfully folding and preserving
range information for both A-B and B-A. Now, if it gets
either one, it's sufficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30 06:12:16 +00:00
Dan Gohman
4f46e14b8a Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106260 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 00:53:08 +00:00
Dan Gohman
7cbf5a803e Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 17:56:04 +00:00
Duncan Sands
1df9859c40 There are two ways of checking for a given type, for example isa<PointerType>(T)
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16 11:11:14 +00:00
Chris Lattner
1bc76d48d4 adopt getAdjustedAnalysisPointer in a few more passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94018 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-20 20:09:02 +00:00
Dan Gohman
576fd76a68 Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an
underlying alias call even for non-identified-object values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85656 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:32:25 +00:00
Nick Lewycky
f5a86f45e7 Remove includes of Support/Compiler.h that are no longer needed after the
VISIBILITY_HIDDEN removal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 06:57:41 +00:00
Nick Lewycky
6726b6d75a Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 06:33:48 +00:00
Dan Gohman
ed77e52dd9 Add some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80452 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29 23:36:57 +00:00
Dan Gohman
2385e0e22c Create a ScalarEvolution-based AliasAnalysis implementation.
This is a simple AliasAnalysis implementation which works by making
ScalarEvolution queries. ScalarEvolution has a more complete understanding
of arithmetic than BasicAA's collection of ad-hoc checks, so it handles
some cases that BasicAA misses, for example p[i] and p[i+1] within the
same iteration of a loop.

This is currently experimental. It may be that the main use for this pass
will be to help find cases where BasicAA can be profitably extended, or
to help in the development of the overall AliasAnalysis infrastructure,
however it's also possible that it could grow up to become a directly
useful pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 14:53:06 +00:00