a7aed18624
Reapply r110396, with fixes to appease the Linux buildbot gods.
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llvm-svn: 110460
2010-08-06 18:33:48 +00:00
bda59bd247
Revert r110396 to fix buildbots.
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llvm-svn: 110410
2010-08-06 00:23:35 +00:00
755aceb5d0
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
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ID member as the sole unique type identifier. Clean up APIs related to this change.
llvm-svn: 110396
2010-08-05 23:42:04 +00:00
65b257c9d2
Use DominatorTree::properlyDominates instead of dominates with an
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explicit inequality check.
llvm-svn: 109401
2010-07-26 17:37:36 +00:00
31f73ef210
A block dominates itself, by definition.
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llvm-svn: 109400
2010-07-26 17:35:32 +00:00
dde79d8f1a
mass elimination of reliance on automatic iterator dereferencing
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llvm-svn: 109103
2010-07-22 13:36:47 +00:00
a57b97e7e7
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
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llvm-svn: 109045
2010-07-21 22:09:45 +00:00
41b4a6b36a
Convert some tab stops into spaces.
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llvm-svn: 108130
2010-07-12 08:16:59 +00:00
0dc3c2d37e
Use ValueMap instead of DenseMap.
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The ValueMapper used by various cloning utility maps MDNodes also.
llvm-svn: 106706
2010-06-24 00:33:28 +00:00
d2d1ae105d
Use pre-increment instead of post-increment when the result is not used.
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llvm-svn: 106542
2010-06-22 15:08:57 +00:00
9f5200a122
Check for side effects before splitting loop.
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Patch by Jakub Staszak!
llvm-svn: 102928
2010-05-03 18:06:58 +00:00
28943873e6
Use do+while instead of while for loops which obviously have a
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non-zero trip count. Use SmallVector's pop_back_val().
llvm-svn: 92734
2010-01-05 16:27:25 +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
a83ac2d9e7
Update various Loop optimization passes to cope with the possibility that
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LoopSimplify form may not be available.
llvm-svn: 86175
2009-11-05 21:11:53 +00:00
54d7179a25
Remove ICmpInst::isSignedPredicate which was a reimplementation
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CmpInst::isSigned.
llvm-svn: 85037
2009-10-25 05:20:17 +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
bda82c20f3
Fix PR3913, patch by Jakub Staszak!
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llvm-svn: 80327
2009-08-28 00:43:14 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +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
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
38264b1554
"LLVMContext* " --> "LLVMContext *"
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llvm-svn: 74878
2009-07-06 23:00:19 +00:00
80baed63b4
Second batch of passes using LLVMContext.
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llvm-svn: 74753
2009-07-03 00:54:20 +00:00
317f054531
Don't try to split a loop when the controlling icmp instruction
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doesn't have an IV-based operand. This fixes PR4471.
llvm-svn: 74399
2009-06-27 22:58:27 +00:00
7ccc52f131
Support vector casts in more places, fixing a variety of assertion
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failures.
To support this, add some utility functions to Type to help support
vector/scalar-independent code. Change ConstantInt::get and
ConstantFP::get to support vector types, and add an overload to
ConstantInt::get that uses a static IntegerType type, for
convenience.
Introduce a new getConstant method for ScalarEvolution, to simplify
common use cases.
llvm-svn: 73431
2009-06-15 22:12:54 +00:00
0cf811df82
Fix loop-index-split to correctly preserve dominance frontiers. Part of
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PR4238.
llvm-svn: 72244
2009-05-22 03:22:46 +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
8ddd0b3599
Reword and tidy up some comments.
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llvm-svn: 70416
2009-04-29 22:01:05 +00:00
a1902318e3
LoopIndexSplit needs to inform the loop pass manager of the instructions it is
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deleting, not just the basic block.
llvm-svn: 69011
2009-04-14 01:04:19 +00:00
6e68bd007a
Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it.
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llvm-svn: 68071
2009-03-30 22:24:10 +00:00
4555618854
Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block.
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llvm-svn: 67719
2009-03-25 23:57:48 +00:00
d50ebbdf3f
If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed.
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llvm-svn: 65902
2009-03-02 23:39:14 +00:00
d90415555e
LoopIndexSplit doesn't actually use ScalarEvolution.
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llvm-svn: 64811
2009-02-17 20:50:11 +00:00
656b097b8a
Add a utility function to LoopInfo to return the exit block
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when the loop has exactly one exit, and make use of it in
LoopIndexSplit.
llvm-svn: 64388
2009-02-12 18:08:24 +00:00
7cb8df4ce7
Ignore DbgInfoIntrinsics.
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llvm-svn: 63923
2009-02-06 06:19:06 +00:00
2bb8a2f80f
Fix spelling.
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Thanks Duncan!
llvm-svn: 60702
2008-12-08 17:07:24 +00:00
c56423b500
Rewrite code that 1) filters loops and 2) calculates new loop bounds.
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This fixes many bugs. I will add more test cases in a separate check-in.
Some day, the code that manipulates CFG and updates dom. info could use refactoring help.
llvm-svn: 60554
2008-12-04 21:38:42 +00:00
d0ce981372
If the sign of exit condition and split condition does not match
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then do not split loop index.
llvm-svn: 58995
2008-11-10 19:48:34 +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
647a1e532b
Check loop exit predicate properly while eliminating one iteration loop.
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This patch fixes PR 2869
llvm-svn: 57369
2008-10-10 22:02:57 +00:00
40aafce00d
Fix typo, fix PR 2865.
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llvm-svn: 57221
2008-10-06 23:22:54 +00:00
c25be3b2de
splitLoop does not handle split condition EQ.
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Fixes PR 2805
llvm-svn: 56321
2008-09-18 23:45:14 +00:00
dca8d3b183
Do not ignore iv uses outside the loop.
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This one slipped through cracks very well.
llvm-svn: 56284
2008-09-17 17:53:47 +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
8de6d22392
Use empty() instead of begin() == end().
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llvm-svn: 54780
2008-08-14 18:13:49 +00:00
51cbf928ab
If loop induction variable's start value is less then its exit value then do not split the loop.
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llvm-svn: 53265
2008-07-09 00:12:01 +00:00
4be44e62b3
Fix a typo in a comment.
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llvm-svn: 52687
2008-06-24 18:00:21 +00:00
ee7bf41c06
Do not erase induction variable increment if it is used outside the loop.
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llvm-svn: 51280
2008-05-19 22:23:55 +00:00
e1f6e4b21d
API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.)
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llvm-svn: 51200
2008-05-16 19:29:10 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
Owen Anderson