Tobias Grosser
f96b006367
Add new RegionInfo pass.
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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.
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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.
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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
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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.
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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.
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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.
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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
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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
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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.
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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)
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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
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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
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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
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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
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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.
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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.
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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
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(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
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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
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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
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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
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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.
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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
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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
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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
Gabor Greif
02680f946b
minor enhancement to llvm::isFreeCall API: return CallInst; no functional change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-23 21:51:12 +00:00
Dan Gohman
605c14fb11
Replace ScalarEvolution's private copy of getLoopPredecessor
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with LoopInfo's public copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106603 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-22 23:43:28 +00:00
Dan Gohman
5cf27f81f4
Split out the code for finding a unique loop predecessor from
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getLoopPreheader into a separate function, for clients which don't
require a proper preheader.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-22 15:25:42 +00:00
Dan Gohman
485c43fc47
Factor out duplicated code for reusing and inserting casts into
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a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106388 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-19 13:25:23 +00:00
Dan Gohman
3bf63768e5
Revert r106304 (105548 and friends), which are the SCEVComplexityCompare
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optimizations. There is still some nondeterminism remaining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106306 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 19:54:20 +00:00
Dan Gohman
78db186d2d
Reapply 105540, 105542, and 105548, and revert r105732.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106304 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 19:26:04 +00:00
Dan Gohman
4593433015
Don't bother calling releaseMemory before destroying the DominatorTreeBase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106287 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 16:09:11 +00:00
Dan Gohman
07587a4500
Remove getIntegerSCEV; it's redundant with getConstant, and getConstant
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is more consistent with the ConstantInt API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 14:33:50 +00:00
Douglas Gregor
41f98a295a
Revert r106117, which was the result of me misreading the C++98/03
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specification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106162 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16 22:32:18 +00:00
Douglas Gregor
0964b4a3f5
Eliminate a redundant "typename" keyword
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16 17:42:01 +00:00
Stuart Hastings
215aa15a0d
Support for nested functions/classes in debug output. (Again.) Radar 7424645.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105828 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11 20:08:44 +00:00
Evan Cheng
1d451dff63
Revert 105540, 105542, 105544, 105546, and 105548 to unbreak bootstrapping.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09 18:59:43 +00:00
Kenneth Uildriks
42c7d23c6d
Pulled CodeMetrics out of InlineCost.h and made it a bit more general, so it can be reused from PartialSpecializationCost
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09 15:11:37 +00:00
Dan Gohman
fd447eff22
The FoldingSet hash data includes pointer values, so it isn't
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determinstic. Instead, give SCEV objects an arbitrary sequence
number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105548 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07 19:36:14 +00:00
Dan Gohman
4d52c6d622
Optimize ScalarEvolution's SCEVComplexityCompare predicate: don't go
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scrounging through SCEVUnknown contents and SCEVNAryExpr operands;
instead just do a simple deterministic comparison of the precomputed
hash data.
Also, since this is more precise, it eliminates the need for the slow
N^2 duplicate detection code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105540 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07 19:06:13 +00:00
Stuart Hastings
6d56b9fabc
Revert 105492 & 105493 due to a testcase regression. Radar 7424645.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-05 00:39:29 +00:00
Dan Gohman
25fcaff409
LSR needs to remember inserted instructions even in postinc mode, because
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there could be multiple subexpressions within a single expansion which
require insert point adjustment. This fixes PR7306.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105510 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-05 00:33:07 +00:00
Stuart Hastings
0f1b813567
Support for nested functions/classes in debug output. Radar 7424645.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-04 22:36:03 +00:00
Dan Gohman
dd9344f3fa
Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of
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lib/Transforms/Utils and into lib/Analysis so that Analysis passes
can use them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:19:17 +00:00
Dan Gohman
dffc308c0e
Fix a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104947 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:06:09 +00:00
Dan Gohman
a0f7ff334f
Fix Lint printing warnings multiple times. Remove the ErrorStr
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option from lintModule, which was an artifact from being
based on Verifier code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26 22:28:53 +00:00
Devang Patel
6ed0ce3240
Rename variable. add comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20 20:35:24 +00:00
Devang Patel
98e1cac52c
Add support to preserve type info for the variables that are removed by the optimizer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103798 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 21:01:35 +00:00
Nick Lewycky
9a1581b910
Clear CachedFunctionInfo upon Pass::releaseMemory. Because ValueMap will abort
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on RAUW of functions, this is a correctness issue instead of a mere memory
usage problem.
No testcase until the new MergeFunctions can land.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-12 21:48:15 +00:00
Devang Patel
a49d877290
Remove DIGlobal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103325 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 23:19:07 +00:00