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886 Commits

Author SHA1 Message Date
Dan Gohman
17f1972c77 Use SCEVAddRecExpr::isAffine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 19:23:09 +00:00
Dan Gohman
11f6d3b478 Move a few more SCEVExpander methods out-of-line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 19:09:18 +00:00
Dan Gohman
65c6795af4 It's invalid to take the one-past-the-end address of a non-array 
object.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52515 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 00:49:21 +00:00
Dan Gohman
e24fa64d52 Move SCEVExpander::visitAddExpr out-of-line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52464 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-18 16:37:11 +00:00
Dan Gohman
cfeb6a4506 Move LSR's private isZero function to a public SCEV member 
function, and make use of it in several places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52463 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-18 16:23:07 +00:00
Devang Patel
6d0cc55ef3 Check empty dominance frontier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52437 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-18 02:12:09 +00:00
Matthijs Kooijman
de9256ad2e Forgot to commit the ValueTracking header file along with r52396. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52401 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 13:54:33 +00:00
Matthijs Kooijman
74fc4d9686 80 column fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52391 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 08:26:32 +00:00
Matthijs Kooijman
9772891219 Make the InsertBefore argument to FindInsertedValue optional, so you can find an inserted value without modifying the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52319 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 13:28:31 +00:00
Matthijs Kooijman
0a7413dad8 Pass around Instruction* instead of Instruction& in FindInsertedValue and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52318 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 13:13:08 +00:00
Matthijs Kooijman
b23d5adbc8 Move FindScalarValue from InstructionCombining.cpp to ValueTracking.cpp. While 
I'm at it, rename it to FindInsertedValue.

The only functional change is that newly created instructions are no longer
added to instcombine's worklist, but that is not really necessary anyway (and
I'll commit some improvements next that will completely remove the need).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 12:48:21 +00:00
Wojciech Matyjewicz
8a08769bad Fix PR2434. When scanning for exising binary operator to reuse don't 
take into account the instrucion pointed by InsertPt. Thanks to it, 
returning the new value of InsertPt to the InsertBinop() caller can be 
avoided. The bug was, actually, in visitAddRecExpr() method which wasn't 
correctly handling changes of InsertPt. There shouldn't be any 
performance regression, as -gvn pass (run after -indvars) removes any 
redundant binops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52291 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-15 19:07:39 +00:00
Nick Lewycky
6f8abf929a Crash less. The i64 restriction in BinomialCoefficient caused some problems 
with code that was expecting different bit widths for different values.

Make getTruncateOrZeroExtend a method on ScalarEvolution, and use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52248 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-13 04:38:55 +00:00
Chris Lattner
5c490610a1 Expose a public interface to this pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52029 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-05 23:45:18 +00:00
Chris Lattner
833f25d79e move CannotBeNegativeZero to ValueTracking. Simplify some signbit comparisons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51864 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-02 01:29:46 +00:00
Chris Lattner
173234a68f move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits 
out of instcombine into a new file in libanalysis.  This also teaches
ComputeNumSignBits about the number of sign bits in a constantint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51863 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-02 01:18:21 +00:00
Evan Cheng
652f7ea955 Revert 51775. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51795 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 22:47:19 +00:00
Evan Cheng
babf11f249 Patches for building llvm on Solaris x86. Contributed by Nathan Keynes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51775 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 17:16:20 +00:00
Dan Gohman
64d237cfae Fix doxygen comment syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 00:01:36 +00:00
Dan Gohman
1baa88e3de Prune and tidy #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 19:52:31 +00:00
Anton Korobeynikov
43d1fd449f For PR1338: rename include/llvm/ADT/ilist and friends to end with ".h" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 17:41:17 +00:00
Owen Anderson
5771d6c16d Force postdom to be linked into opt and bugpoint, even though it is no longer used by any passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51686 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 17:00:13 +00:00
Dan Gohman
201694b0c6 Fix a word-o and add an explicit keyword. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:41:18 +00:00
Nick Lewycky
3dfd7bf511 "ret (constexpr)" can't be folded into a Constant. Add a method to 
Analysis/ConstantFolding to fold ConstantExpr's, then make instcombine use it
to try to use targetdata to fold constant expressions on void instructions.

Also extend the icmp(inttoptr, inttoptr) folding to handle the case where
int size != ptr size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51559 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-25 20:56:15 +00:00
Chris Lattner
28a8dbc35f Add a bool to isEdgeFeasible that tells it whether to treat unknown 
value as undef or untracked.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51295 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-20 03:39:39 +00:00
Gabor Greif
7cbd8a3e92 API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51200 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-16 19:29:10 +00:00
Dan Gohman
1d5562f72e Move RemoveFromVector out of the global namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-14 01:02:49 +00:00
Dan Gohman
45b3197090 Split the loop unroll mechanism logic out into a utility function. 
Patch by Matthijs Kooijman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51083 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-14 00:24:14 +00:00
Eric Christopher
e3fc3858a2 Make this function public. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51077 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-13 22:51:04 +00:00
Chris Lattner
ab7d9ccf18 Add a new SparsePropagation analysis utility, which allows you to do 
SCCP like sparse lattice analysis with relative ease.  Just pick your
lattice function and implement the transfer function and you're good.
Just make sure you don't break monotonicity ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50961 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-12 01:12:24 +00:00
Chris Lattner
029840c935 Add a new LibCallAliasAnalysis pass, which is parameterized 
by an instance of LibCallInfo to provide mod/ref info of
standard library functions.  This is powerful enough to
say that 'sqrt' is readonly except that it modifies errno,
or that "printf doesn't store to memory unless the %n
constraint is present" etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50827 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-07 19:53:05 +00:00
Chris Lattner
14852f27e7 Add a new interface for describing the behavior of library calls. This 
Currently is sufficient to describe mod/ref behavior but will hopefully
eventually be extended for other purposes.

This isn't used by anything yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50820 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-07 18:21:13 +00:00
Dan Gohman
84b7df43fb Remove uses of llvm/System/IncludeFile.h that are no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-06 01:32:53 +00:00
Devang Patel
be5918c079 Remove unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50664 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 19:44:16 +00:00
Evan Cheng
34cd4a484e Fix more -Wshorten-64-to-32 warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 18:30:58 +00:00
Owen Anderson
46bb007014 Fix PR1098 by correcting the postdominators analysis. 
Patch by Florian Brandner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-04 21:07:35 +00:00
Torok Edwin
f6055806d4 Implement destructor for PostDominatorTree to eliminate a memory leak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50607 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-03 20:25:26 +00:00
Nick Lewycky
280a6e607d Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989 
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-25 16:53:59 +00:00
Owen Anderson
1f23e16319 Major repairs to the post-dominators implementation. Patch from Florian Brandner! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49768 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-16 04:21:16 +00:00
Dan Gohman
235fc57ef2 Teach AliasSetTracker about VAArgInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 18:34:50 +00:00
Chris Lattner
75caee2419 add a new CallGraphNode::removeCallEdgeFor method, tidy some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49617 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 19:41:25 +00:00
Owen Anderson
e5ffa900f8 Make GVN more memory efficient, particularly on code that contains a large number of 
allocations, which GVN can't optimize anyways.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-07 09:59:07 +00:00
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