a57b97e7e7
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
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llvm-svn: 109045
2010-07-21 22:09:45 +00:00
2732561be9
cache result of operator*
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llvm-svn: 107967
2010-07-09 14:28:41 +00:00
b29cda9b3c
Fix a bunch of namespace polution.
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llvm-svn: 101376
2010-04-15 17:08:50 +00:00
2734ebd37f
Add a DominatorTree argument to isLCSSA so that it doesn't have to
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compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.
llvm-svn: 98179
2010-03-10 19:38:49 +00:00
93452cebda
Make isLCSSA ignore uses in blocks not reachable from the entry block,
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as LCSSA no longer transforms such uses.
llvm-svn: 98033
2010-03-09 01:53:33 +00:00
c3f2137c06
Restore dump() methods to Loop and MachineLoop.
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llvm-svn: 92772
2010-01-05 21:08:02 +00:00
18fa5686f6
Add Loop contains utility methods for testing whether a loop
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contains another loop, or an instruction. The loop form is
substantially more efficient on large loops than the typical
code it replaces.
llvm-svn: 91654
2009-12-18 01:24:09 +00:00
84ba039cf2
Make getUniqueExitBlocks's precondition assert more precise, to
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avoid spurious failures. This fixes PR5758.
llvm-svn: 91147
2009-12-11 20:05:23 +00:00
62167b9516
Teach getSmallConstantTripMultiple about Shl operators.
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llvm-svn: 89426
2009-11-20 01:09:34 +00:00
5196e415ad
Minor tidiness fixes.
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llvm-svn: 86565
2009-11-09 18:19:43 +00:00
e3a1706e33
Factor out the predicate code for loopsimplify form exit blocks into
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a separate helper function.
llvm-svn: 86159
2009-11-05 19:21:41 +00:00
83f5c835ff
Fix another place that calls Loop::contains a lot to construct a sorted
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container of the blocks and do efficient lookups. This makes
isLoopSimplifyForm much faster on large loops, fixing a significant
compile-time issue in builds with assertions enabled.
llvm-svn: 84673
2009-10-20 20:41:13 +00:00
4dbb301f17
Move the dominator verification code out of special code embedded within
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the PassManager code into a regular verifyAnalysis method.
Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.
llvm-svn: 82952
2009-09-28 00:27:48 +00:00
3ddbc242fb
Re-apply r80926, with fixes: keep the domtree informed of new blocks
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that get created during loop unswitching, and fix SplitBlockPredecessors'
LCSSA updating code to create new PHIs instead of trying to just move
existing ones.
Also, optimize Loop::verifyLoop, since it gets called a lot. Use
searches on a sorted list of blocks instead of calling the "contains"
function, as is done in other places in the Loop class, since "contains"
does a linear search. Also, don't call verifyLoop from LoopSimplify or
LCSSA, as the PassManager is already calling verifyLoop as part of
LoopInfo's verifyAnalysis.
llvm-svn: 81221
2009-09-08 15:45:00 +00:00
904199547b
Revert r80926. It causes loop unswitch assertion and slow down some JIT tests significantly.
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llvm-svn: 81101
2009-09-06 02:26:10 +00:00
ed8f32022e
Smallvectorize switchExitBlocks.
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llvm-svn: 80942
2009-09-03 20:36:13 +00:00
4c1bdcf5d7
Add a verifyAnalysis to LoopInfo, LoopSimplify, and LCSSA form that verify
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that these passes are properly preserved.
Fix several transformation passes that claimed to preserve LoopSimplify
form but weren't.
llvm-svn: 80926
2009-09-03 16:31:42 +00:00
3a0ce3e639
Move getUniqueExitBlocks from LoopBase to Loop, since they depend on
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LoopSimplify form, which is currently only available on Loops (and
not MachineLoops). Also, move the code out of the header file.
llvm-svn: 80923
2009-09-03 16:10:48 +00:00
91922253c5
remove uses of llvm/Support/Streams.h.
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llvm-svn: 79838
2009-08-23 07:33:14 +00:00
1362602eb2
Change Pass::print to take a raw ostream instead of std::ostream,
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update all code that this affects.
llvm-svn: 79830
2009-08-23 06:03:38 +00:00
b1d782bec9
eliminate the std::ostream form of WriteAsOperand and update clients.
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This also updates dominator related stuff.
llvm-svn: 79825
2009-08-23 05:17:37 +00:00
b8f6a4fc8e
Replace isTrapping with a new, similar method called
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isSafeToSpeculativelyExecute. The new method is a bit closer to what
the callers actually care about in that it rejects more things callers
don't want. It also adds more precise handling for integer
division, and unifies code for analyzing the legality of a speculative
load.
llvm-svn: 76150
2009-07-17 04:28:42 +00:00
1511f701e7
Add an isLoopSimplifyForm() predicate, following the example of
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isLCSSAForm(), to test whether a loop is in the form guaranteed
by the LoopSimplify pass.
llvm-svn: 76077
2009-07-16 16:16:23 +00:00
c43e47938a
Make makeLoopInvariant report whether it made any changes or not,
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and use this to simplify more code.
llvm-svn: 75722
2009-07-15 01:25:43 +00:00
6f6d864815
Introduce a new LoopInfo utility function makeLoopInvariant, which
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works similar to isLoopInvariant, except that it will do trivial
hoisting to try to make the value loop invariant if it isn't already.
This makes it easier for transformation passes to clear trivial
instructions out of the way (the regular LICM pass doesn't run
until relatively late). This is code factored out of LoopSimplify
and other places.
llvm-svn: 75578
2009-07-14 01:06:29 +00:00
80a9942593
Move isLCSSAForm, isLoopInvariant, getCanonicalInductionVariable,
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and related functions out of LoopBase and into Loop, since they
are specific to BasicBlock-based loops. This also allows the code
to be moved out-of-line.
llvm-svn: 75523
2009-07-13 22:02:44 +00:00
4f16a2923c
Eliminate a layer of indirection in LoopInfo and MachineLoopInfo.
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llvm-svn: 74394
2009-06-27 21:22:48 +00:00
d9ef48a73e
Remove some unnecessary #includes.
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llvm-svn: 72948
2009-06-05 16:32:58 +00:00
410b4fdceb
Change the description string of the LoopInfo pass.
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"Construction" makes it sound like a pass that might
modify the CFG to construct natural loops.
llvm-svn: 70580
2009-05-01 21:58:05 +00:00
8e0f6f272f
Remove dead comments.
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llvm-svn: 61201
2008-12-18 09:01:18 +00:00
a8b7e78f54
Remove uses of llvm/System/IncludeFile.h that are no longer needed.
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llvm-svn: 50695
2008-05-06 01:32:53 +00:00
4d638f1a42
These passes preserve CFG.
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This patch fixes Benchmarks/Trimaran/enc-pc1/enc-pc1 failure reported by Grawp-PIC i386 nightly tester
llvm-svn: 48623
2008-03-20 23:27:18 +00:00
80e43fa744
Restore isCFGOnly property of various analysis passes.
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llvm-svn: 48579
2008-03-20 02:25:21 +00:00
718da668ab
PassInfo keep tracks whether a pass is an analysis pass or not.
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llvm-svn: 48554
2008-03-19 21:56:59 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
b0dd27ee91
Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change.
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llvm-svn: 44348
2007-11-27 03:43:35 +00:00
1b74a9a628
More templatization.
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llvm-svn: 44158
2007-11-15 05:00:15 +00:00
9306de0727
Start the process of making MachineLoopInfo possible by templating Loop.
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llvm-svn: 44097
2007-11-14 02:33:58 +00:00
f5e520d892
Use SmallVector.
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llvm-svn: 41230
2007-08-21 16:54:51 +00:00
a9e7c4f827
No need to hardcode SmallVector size.
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llvm-svn: 41228
2007-08-21 16:39:43 +00:00
b5933bbbd5
Use SmallVector instead of std::vector.
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llvm-svn: 41207
2007-08-21 00:31:24 +00:00
a273d1cd3a
Verify loop info.
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llvm-svn: 40062
2007-07-19 18:02:32 +00:00
aee309e353
Use DominatorTree instead of ETForest.
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llvm-svn: 37507
2007-06-08 00:17:13 +00:00
8c78a0bff0
Drop 'const'
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llvm-svn: 36662
2007-05-03 01:11:54 +00:00
e95c6ad802
Use 'static const char' instead of 'static const int'.
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Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
09f162ca6a
Do not use typeinfo to identify pass in pass manager.
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llvm-svn: 36632
2007-05-01 21:15:47 +00:00
16cf9a7686
Speed up Loop::isLCSSAForm by using a hash table instead of a sorted vector.
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llvm-svn: 34900
2007-03-04 04:06:39 +00:00
266e42b312
For PR950:
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This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.
llvm-svn: 32751
2006-12-23 06:05:41 +00:00
f3baad3ee1
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
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now cerr, cout, and NullStream resp.
llvm-svn: 32298
2006-12-07 01:30:32 +00:00
597d451fea
Removed some of the iostream #includes. Moved towards converting to using
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llvm streams
llvm-svn: 31983
2006-11-28 22:46:12 +00:00
Owen Anderson