deaf572ca8
Reflow comment.
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llvm-svn: 81361
2009-09-09 17:57:16 +00:00
c56af25c01
Fix an 80-column violation.
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llvm-svn: 81354
2009-09-09 17:17:19 +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
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
2dd09dbdf7
eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
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llvm-svn: 80766
2009-09-02 06:11:42 +00:00
b25de3ff60
eliminate the "Value" printing methods that print to a std::ostream.
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This required converting a bunch of stuff off DOUT and other cleanups.
llvm-svn: 79819
2009-08-23 04:37:46 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +00:00
23a204d91b
Move getTrue() and getFalse() to 2.5-like APIs.
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llvm-svn: 77685
2009-07-31 17:39:07 +00:00
b292b8ce70
Move more code back to 2.5 APIs.
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llvm-svn: 77635
2009-07-30 23:03:37 +00:00
0dd5e1ed39
More migration to raw_ostream, the water has dried up around the iostream hole.
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- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided calling printing functions when the
statement was disabled. In addition to being unnecessary magic, it had the
downside of leaving code in -Asserts builds, and of hiding potentially
unnecessary computations.
llvm-svn: 77019
2009-07-25 00:23:56 +00:00
edb4a70325
Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
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llvm-svn: 77011
2009-07-24 23:12:02 +00:00
47db941fd3
Get rid of the Pass+Context magic.
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llvm-svn: 76702
2009-07-22 00:24:57 +00:00
c37bc69e91
Rename getConstantInt{True|False} to get{True|False} at Chris' behest.
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llvm-svn: 76598
2009-07-21 18:03:38 +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
4d6149f356
Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariant
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function.
llvm-svn: 75584
2009-07-14 01:37:59 +00:00
1e5f00e7a7
This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!?
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llvm-svn: 75200
2009-07-09 23:48:35 +00:00
39f00cc1d4
Thread LLVMContext through the constant folding APIs, which touches a lot of files.
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llvm-svn: 74844
2009-07-06 18:42:36 +00:00
80baed63b4
Second batch of passes using LLVMContext.
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llvm-svn: 74753
2009-07-03 00:54:20 +00:00
1efabaaa2a
Allow readonly functions to unwind exceptions. Teach
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the optimizers about this. For example, a readonly
function with no uses cannot be removed unless it is
also marked nounwind.
llvm-svn: 71071
2009-05-06 06:49:50 +00:00
bfd4ad67c7
Remove strange extra semicolons.
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llvm-svn: 67287
2009-03-19 05:51:39 +00:00
43a1161379
If "optimize for size" attribute is set then block non-trivial loop unswitches but allow trivial loop unswitches.
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llvm-svn: 63670
2009-02-03 22:04:27 +00:00
5a913d61e3
Rename getAnalysisToUpdate to getAnalysisIfAvailable.
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llvm-svn: 63198
2009-01-28 13:14:17 +00:00
1c469d36b0
Undo previous patch.
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llvm-svn: 60701
2008-12-08 17:02:37 +00:00
2b07d3ccde
switch a couple more calls to use array_pod_sort.
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llvm-svn: 60337
2008-12-01 06:52:57 +00:00
fe57d109b6
Ignore conditions that are outside the loop.
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llvm-svn: 58631
2008-11-03 19:38:07 +00:00
7f39e2d85a
Change create*Pass factory functions to return Pass* instead of
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LoopPass*.
- Although less precise, this means they can be used in clients
without RTTI (who would otherwise need to include LoopPass.h, which
eventually includes things using dynamic_cast). This was the
simplest solution that presented itself, but I am happy to use a
better one if available.
llvm-svn: 58010
2008-10-22 23:32:42 +00:00
215742a966
Use 0 instead of false to return a null pointer.
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llvm-svn: 57660
2008-10-17 00:56:52 +00:00
9eb525d4f9
Implement function notes as function attributes.
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llvm-svn: 56716
2008-09-26 23:51:19 +00:00
4c758ea3e0
Large mechanical patch.
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s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g
This sets the stage
- to implement function notes as function attributes and
- to distinguish between function attributes and return value attributes.
This requires corresponding changes in llvm-gcc and clang.
llvm-svn: 56622
2008-09-25 21:00:45 +00:00
e15607b7bb
Put FN_NOTE_AlwaysInline and others in FnAttr namespace.
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llvm-svn: 56527
2008-09-24 00:06:15 +00:00
e87abd26ba
Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace.
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Do not check isDeclaration() in hasNote(). It is clients' responsibility.
llvm-svn: 56524
2008-09-23 23:52:03 +00:00
82fed6702b
Use parameter attribute store (soon to be renamed) for
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Function Notes also. Function notes are stored at index ~0.
llvm-svn: 56511
2008-09-23 22:35:17 +00:00
329fe728b5
Add hasNote() to check note associated with a function.
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llvm-svn: 56477
2008-09-22 22:32:29 +00:00
40519f0370
A loop may be unswitched multiple times. Reconstruct dom info. at the end.
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llvm-svn: 55806
2008-09-04 22:43:59 +00:00
00ec74616b
Initialize loop data first.
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llvm-svn: 55792
2008-09-04 20:36:36 +00:00
d52071540c
Do not unswitch if the function notes say we're optimizing this function for size.
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llvm-svn: 55786
2008-09-04 18:55:13 +00:00
a79db30d28
Tidy up several unbeseeming casts from pointer to intptr_t.
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llvm-svn: 55779
2008-09-04 17:05:41 +00:00
eb611ddeb2
Do not try to update dominator info while manipulating CFG. This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream.
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Right now, dom info is recaluclated in the end if the loop is switched.
llvm-svn: 53106
2008-07-03 17:37:52 +00:00
a96eabaab7
Remove unused function.
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llvm-svn: 53090
2008-07-03 07:10:03 +00:00
226edd1826
Remove extra FIXME
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llvm-svn: 53087
2008-07-03 06:50:04 +00:00
c4dcf82a16
Reconstruct dom info, if loop is unswitched.
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llvm-svn: 53086
2008-07-03 06:48:21 +00:00
e491bb8845
LoopUnswitch does not preserve dominator info in all cases.
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llvm-svn: 53085
2008-07-03 05:55:03 +00:00
7dcfff392a
Undo previous patch. It is not that simple to fix dom info here.
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llvm-svn: 53062
2008-07-03 00:08:13 +00:00
5adfcb5783
Preserve dom info while simplifing loop after the unswitch.
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llvm-svn: 53052
2008-07-02 22:58:54 +00:00
ed50fb5b61
reuse vectors.
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llvm-svn: 53007
2008-07-02 01:44:29 +00:00
57d94d6304
Fix comment.
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llvm-svn: 53006
2008-07-02 01:31:19 +00:00
e149d4ed4d
Preserve loop data so that it is not fetched everytime it is needed.
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Keep track of currentLoop.
llvm-svn: 53005
2008-07-02 01:18:13 +00:00
cd6b697945
Preserve dominance frontier while trivially unswitching loop.
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llvm-svn: 52438
2008-06-18 02:16:38 +00:00
7314d0ee3c
Update dom tree. Fix PR 2372.
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llvm-svn: 51887
2008-06-02 22:52:56 +00:00
Mike Stump