Commit Graph

37 Commits

Author SHA1 Message Date
Dan Gohman
5034dd318a Move Value::getUnderlyingObject to be a standalone
function so that it can live in Analysis instead of
VMCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121885 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15 20:02:24 +00:00
Dan Gohman
d891acd184 Minimally update this code to handle PartialAlias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121518 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10 20:14:49 +00:00
Dan Gohman
17ead4ff4b Move SCEV::isLoopInvariant and hasComputableLoopEvolution to be member
functions of ScalarEvolution, in preparation for memoization and
other optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119562 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17 21:23:15 +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
Owen Anderson
d13db2c59c Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 22:09:45 +00:00
Dan Gohman
9553188fcc Define placement new wrappers for BumpPtrAllocator and
RecyclingAllocator to allow client code to be simpler, and
simplify several clients.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98847 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 18:49:47 +00:00
David Greene
d387b2b1cf Convert debug messages to use dbgs(). Generally this means
s/errs/dbgs/g except for certain special cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23 20:52:41 +00:00
Chris Lattner
9661c13c37 remove a few dead insertion methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79882 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 02:39:26 +00:00
Owen Anderson
1d0be15f89 Push LLVMContexts through the IntegerType APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13 21:58:54 +00:00
Andreas Bolka
699db99c1a SIV/MIV classification for LDA.
LoopDependenceAnalysis::getLoops is currently O(N*M) for a loop-nest of
depth N and a compound SCEV of M atomic SCEVs. As both N and M will
typically be very small, this should not be a problem. If it turns out
to be one, rewriting getLoops as SCEVVisitor will reduce complexity to
O(M).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07 18:23:41 +00:00
Andreas Bolka
6151f67285 Simplify the ZIV tester to the max.
As suggested by Nick Lewycky.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78277 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06 03:10:33 +00:00
Andreas Bolka
831f6f6d2a ZIV tester for LDA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78157 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 04:26:05 +00:00
Andreas Bolka
a1b78d133e Restrict LDA to GEPs with the same pointer offset.
We can not simply apply ZIV testing to the pointer offsets, as this
would incorrectly return independence for e.g. (GEP x,0,i; GEP x,1,-i).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78155 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 04:13:41 +00:00
Andreas Bolka
5eca4525f4 Restrict LDA to affine subscripts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77932 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 01:03:48 +00:00
Andreas Bolka
713395950a Equal SCEVs of a subscript give rise to dependence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77570 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 02:26:01 +00:00
Andreas Bolka
15f72dbf97 Skeleton for pairwise subscript testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 05:35:53 +00:00
Andreas Bolka
c3cc45aa8b Simplify LDA-internal interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 19:50:13 +00:00
Andreas Bolka
328fb3d210 Add LDA statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77358 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 19:49:49 +00:00
Andreas Bolka
34ce687144 Minor factoring, naming and formatting cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77357 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 19:49:25 +00:00
Andreas Bolka
8a8bd3d690 Convert DOUT to DEBUG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 12:19:58 +00:00
Dan Gohman
fc2a3ed0c9 Make AliasAnalysis and related classes use
getAnalysisIfAvailable<TargetData>().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77028 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 00:48:42 +00:00
Andreas Bolka
0baa25d539 Forward-declare raw_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 23:19:28 +00:00
Andreas Bolka
b4c28e97f4 Cache dependence computation using FoldingSet.
This introduces an LDA-internal DependencePair class. The intention is,
that this is a place where dependence testers can store various results
such as SCEVs describing conflicting iterations, breaking conditions,
distance/direction vectors, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23 14:32:46 +00:00
Andreas Bolka
3b59dd886a Minor cosmetics: indentation, formatting, naming.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76839 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23 01:57:06 +00:00
Torok Edwin
c23197a26f llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 16:55:14 +00:00
Torok Edwin
c25e7581b9 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11 20:10:48 +00:00
Andreas Bolka
292aef33e1 Minor improvement to the LDA debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74754 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-03 01:42:52 +00:00
Andreas Bolka
fecbc59be6 Use AA to check objects before LDA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74647 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 21:45:23 +00:00
Andreas Bolka
e9722fc850 Array accesses are independent if the underlying arrays differ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 02:12:10 +00:00
Andreas Bolka
2fbb770d40 Relax LDA memory instruction checks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 18:51:11 +00:00
Andreas Bolka
868a302738 Missed one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74416 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 00:53:49 +00:00
Andreas Bolka
acd6f8d5d1 Fix case in LDA util function names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-29 00:50:26 +00:00
Andreas Bolka
c6a303052b Print pairwise dependence results, add testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74402 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:35:22 +00:00
Andreas Bolka
f35626d3cd Minimal LDA interface, maximally conservative tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:21:21 +00:00
Andreas Bolka
707207adae LDA analysis output scaffolding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74400 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:16:08 +00:00
Andreas Bolka
cb21010fa0 Scaffolding for LDA pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74120 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-24 21:29:13 +00:00