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844 Commits

Author SHA1 Message Date
Dan Gohman
950a4c40b8 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48801 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-25 22:06:05 +00:00
Dan Gohman
c9235d2e85 Don't include <map> in Pass.h, which doesn't need it. This requires 
adding <map> to many files that actually do need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48667 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-21 23:51:57 +00:00
Devang Patel
c758209153 PassInfo keep tracks whether a pass is an analysis pass or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48554 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-19 21:56:59 +00:00
Devang Patel
c7fe32e840 Do not use virtual function to identify an analysis pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48520 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-19 00:48:41 +00:00
Dale Johannesen
e856685710 Get rid of compilation warnings. Per Devang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48478 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-18 01:52:17 +00:00
Devang Patel
1cee94f041 Identify Analysis pass. 
Do not run analysis pass again if analysis info is still available.
This fixes PR1441.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-18 00:39:19 +00:00
Dan Gohman
d7a3541a05 Move the PMStack class out of Pass.h and into PassManagers.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-14 18:14:29 +00:00
Nick Lewycky
529de8a457 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:24:34 +00:00
Dan Gohman
e8ae2fe2a8 Add -analyze support to postdomtree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 18:38:29 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:08:44 +00:00
Nick Lewycky
3e63076980 Add 'umax' similar to 'smax' SCEV. Closes PR2003. 
Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).

Parse 'xor %x, -1' as (-1 - %x).

Remove dead code (ConstantInt::get always returns a ConstantInt).

Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:48:22 +00:00
Owen Anderson
30b4bd4d10 Re-apply the patch to improve the optimizations of memcpy's, with several 
bugs fixed.  This now passes PPC bootstrap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 21:15:18 +00:00
Wojciech Matyjewicz
e3320a1bcc Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an 
arbitrary iteration.

The patch:
1) changes SCEVSDivExpr into SCEVUDivExpr,
2) replaces PartialFact() function with BinomialCoefficient(); the 
computations (essentially, the division) in BinomialCoefficient() are 
performed with the apprioprate bitwidth necessary to avoid overflow; 
unsigned division is used instead of the signed one.

Computations in BinomialCoefficient() require support from the code 
generator for APInts. Currently, we use a hack rounding up the 
neccessary bitwidth to the nearest power of 2. The hack is easy to turn 
off in future.

One remaining issue: we assume the divisor of the binomial coefficient 
formula can be computed accurately using 16 bits. It means we can handle 
AddRecs of length up to 9. In future, we should use APInts to evaluate 
the divisor.

Thanks to Nicholas for cooperation!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46955 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-11 11:03:14 +00:00
Wojciech Matyjewicz
402689d11a Add a check if the initial value of the induction variable is 0 (the method comment says it should be). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46907 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-09 18:06:58 +00:00
Dan Gohman
fa9b80eb64 Avoid unnecessarily casting away const, fixing a FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46591 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 01:05:10 +00:00
Dan Gohman
ba42d2b937 Add comments describing what the loop depth values mean. Also, make a 
minor simplification to the loop depth calculation code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46511 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 12:12:40 +00:00
Chris Lattner
fadcd4e60b Move typedef of loop to top of the file where it is more obvious. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:29:42 +00:00
Chris Lattner
131bd2ecf7 Fix 80 col violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45856 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-11 06:27:42 +00:00
Wojciech Matyjewicz
b670a1737b fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45595 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 20:04:08 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Chris Lattner
f286f6fd93 Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp. 
Reimplement the xform in Analysis/ConstantFolding.cpp where we can use
targetdata to validate that it is safe.  While I'm in there, fix some const
correctness issues and generalize the interface to the "operand folder".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 22:53:04 +00:00
Owen Anderson
5fc4abac3d Fix several cache coherence bugs in MemDep/GVN that were found. Also add some (disabled) debugging code 
to make such problems easier to diagnose in the future, written by Duncan Sands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:37:09 +00:00
Duncan Sands
dff6710717 Integrate the readonly/readnone logic more deeply 
into alias analysis.  This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter.  These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function.  Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite.  To reduce the
chance of misuse it is now protected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44487 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 07:51:45 +00:00
Owen Anderson
528b00adc4 Fixes for MachineLoopInfo, mostly from Evan. With these, it should be almost useable! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 03:01:39 +00:00
Owen Anderson
e4ad9c70e4 Add MachineLoopInfo. This is not yet tested. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44384 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 22:47:08 +00:00
Owen Anderson
d735ee85db Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44348 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 03:43:35 +00:00
Owen Anderson
af9ac8f821 Add accessor for getting the underlying templated type. This is necessary for templated LoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44347 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 03:33:40 +00:00
Anton Korobeynikov
fd94dd58ff Remove another leak. Due to some reason AliasSetTracker didn't had any dtor... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44320 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 23:52:02 +00:00
Nick Lewycky
c54c561c9f Add new SCEV, SCEVSMax. This allows LLVM to analyze do-while loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44319 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 22:41:31 +00:00
Anton Korobeynikov
d91cbf352a Remove a leak. Destroy LoopInfoBase object. releaseMemory() is actually called in its dtor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44317 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 18:41:39 +00:00
Dan Gohman
50cdabcfd5 Remove meaningless qualifiers from return types, avoiding compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44240 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-19 20:46:23 +00:00
Dan Gohman
adf3eab773 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-19 15:30:20 +00:00
Anton Korobeynikov
4e1a0e386c Reverted r44163 per request 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 18:33:16 +00:00
Nick Lewycky
65e2da3b4d Fix handling of overflow in loop calculation by adding new UDiv SCEV. This SCEV 
is disabled in the sense that it will refuse to create one from a UDiv
instruction, until the code is better tested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44163 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 06:30:50 +00:00
Owen Anderson
44a95e06cc More templatization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44158 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 05:00:15 +00:00
Owen Anderson
019b92a70c Start the process of making MachineLoopInfo possible by templating Loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 02:33:58 +00:00
Owen Anderson
1ef14f6e76 VAArgInst does, in fact, read memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43633 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-02 04:01:21 +00:00
Owen Anderson
5d32ec4cb0 Some fixes to get MachineDomTree working better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43541 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-31 03:30:14 +00:00
Dan Gohman
9962054775 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 19:52:04 +00:00
Owen Anderson
08895f8866 Add a first attempt at dominator information for MBB's. Use with caution: this has been tested to compile. It has not yet been confirmed to generate correct analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43438 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 04:50:50 +00:00
Owen Anderson
4d6d5783d8 Make it possible for DomTreeBase to be constructed from MachineFunction's as well as just Function's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43321 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 00:16:57 +00:00
Owen Anderson
7feb3be0b7 Make DomTreeBase not a FunctionPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43263 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 21:42:49 +00:00
Owen Anderson
78daec973e Unbreak the build. Forgot to commit this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43260 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 21:04:37 +00:00
Owen Anderson
d20cc14dbf Make DomTree and PostDomTree thin wrappers around DomTreeBase, rather than inheriting from it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43259 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 20:58:37 +00:00
Dan Gohman
246b2564d3 Move the SCEV object factors from being static members of the individual 
SCEV subclasses to being non-static member functions of the ScalarEvolution
class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43224 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 18:31:58 +00:00
Owen Anderson
7b714321df Move Split<...>() into DomTreeBase. This should make the #include's of DominatorInternals.h 
in CodeExtractor and LoopSimplify unnecessary.

Hartmut, could you confirm that this fixes the issues you were seeing?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43115 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 05:13:52 +00:00
Hartmut Kaiser
efd4a5144b Updated VC++ build system. 
Silenced some VC warnings.

I'm getting linker errors, though: unresolved externals:

llvm::Split<class llvm::BasicBlock *,struct llvm::GraphTraits<class llvm::BasicBlock *> >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

and

llvm::Split<struct llvm::Inverse<class llvm::BasicBlock *>,struct llvm::GraphTraits<struct llvm::Inverse<class llvm::BasicBlock *> > >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

Where are these defined?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43073 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 14:56:40 +00:00
Owen Anderson
05d2318fbd Move splitBlock into DomTreeBase from DomTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43059 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 02:03:17 +00:00
Owen Anderson
280f8a2ece Fix some formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43049 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-16 22:59:15 +00:00
Owen Anderson
49b653aa6a Template DominatorTreeBase by node type. This is the next major step towards 
having dominator information on MBB's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43036 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-16 19:59:25 +00:00