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1820 Commits

Author SHA1 Message Date
Duncan Sands
9954c76f2c Fix some warnings reported by gcc-4.3. Hopefully 
this still compiles on windows - I can't test!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52488 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-19 08:47:31 +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
Matthijs Kooijman
3faf9df08f Use a SmallVector instead of an array, since auto_ptr doesn't handle arrays 
properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52390 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 08:24:37 +00:00
Matthijs Kooijman
0a9aaf46be Make BuildSubAggregate use FindInsertedElement again to prevent it from 
inserting extractvalues. In particular, this prevents the insertion of
extractvalues that can't be folded away later. Also add an example of when this
stuff is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52328 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 14:13:46 +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
710eb236e6 80 column fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 12:57:37 +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
Chris Lattner
25df20f169 simplify some code by using a helper function. This really really 
wants a 'nocapture' predicate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52304 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:38:26 +00:00
Chris Lattner
defa1c8034 move a bunch of predicates up into their own section 
in this file, no other changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52303 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:30:22 +00:00
Chris Lattner
e7275794d3 Other parts of this code treat noalias arguments as objects for 
the purposes of escape analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52302 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:28:01 +00:00
Chris Lattner
845f0d2f0f If we are checking to see if the result of a call aliases a 
pointer derived from a local allocation, if the local allocation
never escapes, the pointers can't alias.  This implements PR2436


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52301 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:19:11 +00:00
Chris Lattner
a413960a48 Refactor basicaa's main alias function somethin' fierce. 
This fixes several minor bugs (such as returning noalias
for comparisons between external weak functions an null) but
is mostly a cleanup.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52299 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:10:11 +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
Wojciech Matyjewicz
5d2bc857ec Change 'while' loop to 'do' loop. 
Add a safety measure. It isn't safe to assume in ScalarEvolutionExpander that
all loops are in canonical form (but it should be safe for loops that have
AddRecs).
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52275 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-14 16:48:22 +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
15ccbf59a9 Let libcall semantics decide whether it knows about functions 
with definitions or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52028 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-05 23:38:34 +00:00
Matthijs Kooijman
845f524c25 Update comments and documentation to reflect that GCSE and ValueNumbering are 
deprecated by the GVN and GVNPRE passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51983 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-05 07:55:49 +00:00
Matthijs Kooijman
227c27dd06 Replace two manual loops with calls to CallSite::hasArguments (no functional changes). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51947 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-04 16:57:50 +00:00
Chris Lattner
32a9e7a265 Add #includes required by GCC 4.3, thanks for Zhongxing Xu 
for reporting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51926 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-04 04:46:14 +00:00
Chris Lattner
d82e511aec Remove unneeded code I added. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51878 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-02 18:39:07 +00:00
Wojciech Matyjewicz
98e3a6829a Fixes PR2395. Looking for a constant in a GEP tail (when the first GEP 
is longer than the second one) should stop after finding one. Added break 
instruction guarantees it. It also changes difference between offsets to 
absolute value of this difference in the condition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51875 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-02 17:26:12 +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
Owen Anderson
6bd15ce03f Remember to update the reverse non-local cache when cleaning up dirty entries. This fixes PR2397. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51846 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-01 21:03:52 +00:00
Owen Anderson
d8f34fa3d6 Make ping more aggressive in finding nonlocal caching errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51845 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-01 20:51:41 +00:00
Dan Gohman
5bd91232c3 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51718 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 00:08:18 +00:00
Dan Gohman
5a56bf631e Fix a copy+paste error in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51717 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-30 00:02:02 +00:00
Owen Anderson
9491195710 Add newline at end of file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 21:05:16 +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
Gabor Greif
3e93e630aa convert another operand loop to iterator formulation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51661 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 00:51:08 +00:00
Dan Gohman
ef61af01df Use Function::getEntryBlock instead of Function::begin, for clarity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:55:29 +00:00
Dan Gohman
b22d6ac348 Print debug output when any edge becomes executable, including 
the first visited edge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:47:30 +00:00
Duncan Sands
43e2a03530 Fix some constructs that gcc-4.4 warns about. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51591 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 11:50:51 +00:00
Nick Lewycky
04b35e8532 Don't treat values as signed when looking at loop steppings in HowForToNonZero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51560 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-25 23:43:32 +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
Dan Gohman
b64aa119d8 Use isSingleValueType instead of isFirstClassType to 
exclude struct and array types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51452 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-22 23:43:22 +00:00
Gabor Greif
785c6af979 transform more loops to iterator form, detabify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51436 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-22 19:24:54 +00:00
Gabor Greif
de2d74b213 Rewrite operand loops to use iterators. This shrinks .o file (at gcc4.0.1 -O3 x86) substantially (>500 bytes). Reason still unknown. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51423 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-22 06:43:33 +00:00
Chris Lattner
05a24e5efe Free and vaarg are not really volatile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51407 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-22 03:23:06 +00:00
Gabor Greif
33e456d5f3 suppress gcc3.4.6's <no value returned> warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-21 14:07:30 +00:00
Chris Lattner
eb0fdc150a Fix PR2346 by marking vaarg as volatile so that licm doesn't try to 
hoist them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51356 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-20 22:05:28 +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
d208a803a6 Use static and anonymous namespaces consistently with other passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51156 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-15 19:43:55 +00:00
Owen Anderson
ff5a535378 Fix memdep's handling of invokes when finding the dependency of another call 
instruction.  This fixes some Ada miscompiles reported in PR2324.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51069 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-13 21:25:37 +00:00
Dan Gohman
844731a7f1 Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-13 00:00:25 +00:00
Chris Lattner
4651f3de34 prune #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50962 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-12 01:13:53 +00:00