Commit Graph

1556 Commits

Author SHA1 Message Date
Devang Patel
5d11eb0ed5 Add support to emit debug info for virtual functions and virtual base classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 19:11:07 +00:00
Andreas Neustifter
44299c9507 Use ProfileInfo-API in ProfileInfo Loader and do more assertions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 11:00:37 +00:00
Andreas Neustifter
e2baf6b455 Converted ProfileInfo to template, added more API for ProfileInfo-preserving.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90445 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 09:30:12 +00:00
Devang Patel
e3a18de4f6 Add utility routine to create subprogram definition entry from subprogram declaration entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90282 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 23:09:02 +00:00
Tobias Grosser
56f4ef3232 Remove ShortNames from getNodeLabel in DOTGraphTraits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 12:38:47 +00:00
Tobias Grosser
a10d598602 Instantiate DefaultDOTGraphTraits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 12:38:13 +00:00
Tobias Grosser
2833fac273 Small PostDominatorTree improvements
* Do not SEGFAULT if tree entryNode() is NULL
 * Print function names in dotty printer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90130 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 12:06:37 +00:00
Tobias Grosser
e8a81da98d Remove ":" after BB name in -view-cfg-only
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 11:55:24 +00:00
Chris Lattner
dd696052f0 Enhance InsertPHITranslatedPointer to be able to return a list of newly
inserted instructions.  No functionality change until someone starts using it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28 15:39:14 +00:00
Chris Lattner
6f7b210b25 Rework InsertPHITranslatedPointer to handle the recursive case, this
fixes PR5630 and sets the stage for the next phase of goodness (testcase
pending).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 22:05:15 +00:00
Chris Lattner
8aee8efc0c factor some logic out of instcombine into a new SimplifyAddInst method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 17:42:22 +00:00
Chris Lattner
616613d7a4 teach GVN's load PRE to insert computations of the address in predecessors
where it is not available.  It's unclear how to get this inserted 
computation into GVN's scalar availability sets, Owen, help? :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 08:25:10 +00:00
Chris Lattner
62deff066c Fix phi translation in load PRE to agree with the phi
translation done by memdep, and reenable gep translation 
again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 06:31:14 +00:00
Chris Lattner
c514c1f521 factor some instcombine simplifications for getelementptr out to a new
SimplifyGEPInst method in InstructionSimplify.h.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89980 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 00:29:05 +00:00
Chris Lattner
1ce0eaa25f Implement PR1143 (at -m64) by making basicaa look through extensions. We
previously already handled it at -m32 because there were no i32->i64 
extensions for addressing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89959 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-26 18:53:33 +00:00
Chris Lattner
e405c64f6b move DecomposeGEPExpression out into ValueTracking.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89956 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-26 17:12:50 +00:00
Devang Patel
65dbc909f5 Use StringRef (again) in DebugInfo interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25 17:36:49 +00:00
Devang Patel
193f720f11 Emit pubtypes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89725 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-24 01:14:22 +00:00
Devang Patel
e54a5e88a5 Add CreateLocation varinat that accepts MDNode (with a default value).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 19:11:20 +00:00
Chris Lattner
c46530b6a3 add a helper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 16:38:54 +00:00
Nick Lewycky
ae3d802953 Remove unused LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89642 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23 03:29:18 +00:00
Chris Lattner
66e08cf79a Remove the AliasAnalysis::getMustAliases method, which is dead.
The hasNoModRefInfoForCalls isn't worth it as a filter because 
basicaa provides m/r info and everything chains to it, so remove
it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-22 16:01:44 +00:00
Dan Gohman
a58a04921d Make Loop::getLoopLatch() work on loops which don't have preheaders, as
it may be used in contexts where preheader insertion may have failed due
to an indirectbr.

Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.

These fix PR5502.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89484 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20 20:51:18 +00:00
Dan Gohman
f94b5edc45 Extend CaptureTracking to indicate when a value is never stored, even
if it is not ultimately captured. Teach BasicAliasAnalysis that a 
local object address which does not escape and is never stored does
not alias with a value resulting from a load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89398 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 21:57:48 +00:00
Dan Gohman
3dbb9e64d6 Simplify ComputeMultiple so that it doesn't depend on TargetData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89175 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 00:58:27 +00:00
Devang Patel
427ef4e35f Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89156 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17 22:39:08 +00:00
Chris Lattner
ac57410a56 disable copying, enforce some invariants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88870 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15 20:03:53 +00:00
Benjamin Kramer
1b226abcd9 Remove dead variable found by clang++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14 19:51:20 +00:00
Devang Patel
a2b3cdc21f Do not use value handle to wrap MDNode in DIDescriptor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:45:04 +00:00
Devang Patel
3ddf70442f Revert r87059 for now. It is failing clang tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87070 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 02:27:33 +00:00
Victor Hernandez
0418c102dd Remove unnecessary llvm.dbg.declare bitcast
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:44:55 +00:00
Devang Patel
70d75ca310 "Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 19:02:56 +00:00
Evan Cheng
586f69a118 - Teach LSR to avoid changing cmp iv stride if it will create an immediate that
cannot be folded into target cmp instruction.
- Avoid a phase ordering issue where early cmp optimization would prevent the
  later count-to-zero optimization.
- Add missing checks which could cause LSR to reuse stride that does not have
  users.
- Fix a bug in count-to-zero optimization code which failed to find the pre-inc
  iv's phi node.
- Remove, tighten, loosen some incorrect checks disable valid transformations.
- Quite a bit of code clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 07:35:05 +00:00
Chris Lattner
b52675b643 Add a new getPredicateOnEdge method which returns more rich information for
constant constraints.  Improve the LVI lattice to include inequality 
constraints.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86950 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 04:36:58 +00:00
Chris Lattner
38392bbeb8 expose edge information and switch j-t to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:29:10 +00:00
Devang Patel
afa5a34b30 Do not use StringRef in DebugInfo interface.
This allows StringRef to skip controversial if(str) check in constructor.
Buildbots, wait for corresponding clang and llvm-gcc FE check-ins!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86914 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 00:50:58 +00:00
Dan Gohman
641c6f983e Fix a copy+pasto in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86852 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:14:02 +00:00
Chris Lattner
cc4d3b25f3 stub out some LazyValueInfo interfaces, and have JumpThreading
start using them in a trivial way when -enable-jump-threading-lvi
is passed.  enable-jump-threading-lvi will be my playground for 
awhile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 02:08:33 +00:00
Chris Lattner
10f2d13d58 Stub out a new lazy value info pass, which will eventually
vend value constraint information to the optimizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 00:22:30 +00:00
Chris Lattner
68cf6042c1 remove redundant foward declaration. This function is already in
Analysis/Passes.h



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 00:21:21 +00:00
Devang Patel
53bb5c95af Implement support to debug inlined functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 23:06:00 +00:00
Chris Lattner
0a26870d92 in -dot-cfg and -dot-cfg-only, when rendering switch instructions,
put the switch value in the successor boxes like we put T/F for branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 22:56:15 +00:00
Chris Lattner
40d8c28b27 move some generally useful functions out of jump threading
into libanalysis and transformutils.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86735 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 22:26:15 +00:00
Devang Patel
6daf99bf8f Process InlinedAt location info.
Update InsertDeclare to return newly inserted llvm.dbg.declare intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 22:05:35 +00:00
Victor Hernandez
8e345a1c41 Update computeArraySize() to use ComputeMultiple() to determine the array size associated with a malloc; also extend PerformHeapAllocSRoA() to check if the optimized malloc's arg had its highest bit set, so that it is safe for ComputeMultiple() to look through sext instructions while determining the optimized malloc's array size
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86676 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 08:32:25 +00:00
Victor Hernandez
2b6705f5e7 Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86675 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 08:28:35 +00:00
Chris Lattner
e34537856a add a new SimplifyInstruction API, which is like ConstantFoldInstruction,
except that the result may not be a constant.  Switch jump threading to 
use it so that it gets things like (X & 0) -> 0, which occur when phi preds
are deleted and the remaining phi pred was a zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86637 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 01:08:51 +00:00
Jeffrey Yasskin
81cf432569 Fix DenseMap iterator constness.
This patch forbids implicit conversion of DenseMap::const_iterator to
DenseMap::iterator which was possible because DenseMapIterator inherited
(publicly) from DenseMapConstIterator. Conversion the other way around is now
allowed as one may expect.

The template DenseMapConstIterator is removed and the template parameter
IsConst which specifies whether the iterator is constant is added to
DenseMapIterator.

Actually IsConst parameter is not necessary since the constness can be
determined from KeyT but this is not relevant to the fix and can be addressed
later.

Patch by Victor Zverovich!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86636 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 01:02:17 +00:00
Chris Lattner
d06094f068 factor simplification logic for AND and OR out to InstSimplify from instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 00:55:12 +00:00
Chris Lattner
9dbb42944c rename SimplifyCompare -> SimplifyCmpInst and split it into
Simplify[IF]Cmp pieces.  Add some predicates to CmpInst to 
determine whether a predicate is fp or int.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86624 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09 23:28:39 +00:00
Chris Lattner
8f73deaa87 fix ConstantFoldCompareInstOperands to take the LHS/RHS as
individual operands instead of taking a temporary array


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86619 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09 23:06:58 +00:00
Chris Lattner
9f3c25aeb3 stub out a new libanalysis "instruction simplify" interface that
takes decimated instructions and applies identities to them.  This
is pretty minimal at this point, but I plan to pull some instcombine
logic out into these and similar routines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86613 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09 22:57:59 +00:00
Dan Gohman
d146e986c8 Fix an 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86567 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09 18:20:38 +00:00
Victor Hernandez
9d0b704e3e Re-commit r86077 now that r86290 fixes the 179.art and 175.vpr ARM regressions.
Here is the original commit message:

This commit updates malloc optimizations to operate on malloc calls that have constant int size arguments.

Update CreateMalloc so that its callers specify the size to allocate:
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.

Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.

Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses.  The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.

Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses.  The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.

Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.

Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07 00:16:28 +00:00
Chris Lattner
f55eeb918e remove some more Context arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06 05:59:53 +00:00
Chris Lattner
7b550ccfc5 remove a bunch of extraneous LLVMContext arguments
from various APIs, addressing PR5325.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86231 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06 04:27:31 +00:00
Victor Hernandez
df98761d08 Revert r86077 because it caused crashes in 179.art and 175.vpr on ARM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06 01:33:24 +00:00
Dan Gohman
f17e9511f1 Factor out the predicate code for loopsimplify form exit blocks into
a separate helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86159 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 19:21:41 +00:00
Victor Hernandez
24f934d055 Update CreateMalloc so that its callers specify the size to allocate:
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.

Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.

Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses.  The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.

Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses.  The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.

Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.

Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 00:03:03 +00:00
Douglas Gregor
076124ef26 Reverting 85714, 85715, 85716, which are breaking the build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85717 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 16:42:53 +00:00
Dan Gohman
2166f62290 Add a function to Passes.h to allow clients to create instances
of the ScalarEvolution pass without needing to #include ScalarEvolution.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 15:28:36 +00:00
Dan Gohman
34e9d7b6be Don't #include Pass.h from CallGraph.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 15:23:35 +00:00
Dan Gohman
4c7279ac72 Rename forgetLoopBackedgeTakenCount to forgetLoop, because it
clears out more information than just the stored backedge taken count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 15:04:55 +00:00
Victor Hernandez
90f48e7c91 Extend getMallocArraySize() to determine the array size if the malloc argument is:
ArraySize * ElementSize
ElementSize * ArraySize
ArraySize << log2(ElementSize)
ElementSize << log2(ArraySize)

Refactor isArrayMallocHelper and delete isSafeToGetMallocArraySize, so that there is only 1 copy of the malloc array determining logic.
Update users of getMallocArraySize() to not bother calling isArrayMalloc() as well.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85421 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 20:18:55 +00:00
Victor Hernandez
f006b183e2 Rename MallocFreeHelper as MemoryBuiltins
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85286 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:05:49 +00:00
Victor Hernandez
f2becca90b Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85181 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 23:58:56 +00:00
Victor Hernandez
046e78ce55 Remove FreeInst.
Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 23:43:48 +00:00
Devang Patel
ac16d44e58 Add support to encode type info using llvm::Constant.
Patch by Talin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85126 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 16:54:35 +00:00
Chandler Carruth
8b67f774e9 Move DataTypes.h to include/llvm/System, update all users. This breaks the last
direct inclusion edge from System to Support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 01:35:46 +00:00
Dan Gohman
32663b719b Rename isLoopExit to isLoopExiting, for consistency with the wording
used elsewhere - an exit block is a block outside the loop branched to
from within the loop. An exiting block is a block inside the loop that
branches out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24 23:34:26 +00:00
Dan Gohman
70b2bee8e7 Make DominanceFrontier::addBasicBlock return the iterator for the newly
inserted block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85010 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24 19:57:58 +00:00
Victor Hernandez
66284e063a Auto-upgrade free instructions to calls to the builtin free function.
Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84987 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24 04:23:03 +00:00
Chris Lattner
878e494670 Move some constant folding logic for loads out of instcombine into
Analysis/ConstantFolding.cpp.  This doesn't change the behavior of
instcombine but makes other clients of ConstantFoldInstruction
able to handle loads.  This was partially extracted from Eli's patch
in PR3152.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22 06:25:11 +00:00
Chris Lattner
b839c5577d add function passes for printing various dominator datastructures
accessible through opt.  Patch by Tobias Grosser!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84397 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18 04:10:40 +00:00
Chris Lattner
88067b9133 make DOTGraphTraits public, patch by Tobias Grosser!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84396 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18 04:09:11 +00:00
Chris Lattner
f0d24f1f59 add nodes_begin/end/iterator for dominfo, patch by Tobias Grosser!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84395 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18 04:05:53 +00:00
Daniel Dunbar
ca24a695e7 Add required #includes for freestanding .h files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84302 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17 03:28:07 +00:00
Victor Hernandez
2491ce0353 Fix bug where array malloc with unexpected computation of the size argument resulted in MallocHelper
identifying the malloc as a non-array malloc.  This broke GlobalOpt's optimization of stores of mallocs 
to global variables.

The fix is to classify malloc's into 3 categories:
1. non-array mallocs
2. array mallocs whose array size can be determined
3. mallocs that cannot be determined to be of type 1 or 2 and cannot be optimized

getMallocArraySize() returns NULL for category 3, and all users of this function must avoid their 
malloc optimization if this function returns NULL.

Eventually, currently unexpected codegen for computing the malloc's size argument will be supported in
isArrayMalloc() and getMallocArraySize(), extending malloc optimizations to those examples.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-15 20:14:52 +00:00
Dan Gohman
68cf03a314 Fix resetCachedCostInfo to reset all of the cost information, instead of
just the NumBlocks field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13 23:36:36 +00:00
Dan Gohman
e7f0ed5ace Split code not specific to Function inlining out into a separate class,
named CodeMetrics. Move it to be a non-nested class. Rename RegionInfo
back to FunctionInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84013 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13 19:58:07 +00:00
Dan Gohman
e4aeec003f Move the InlineCost code from Transforms/Utils to Analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83998 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13 18:30:07 +00:00
Devang Patel
6e37f4878b Enable "debug info attached to an instruction" mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83925 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12 23:22:09 +00:00
Dan Gohman
3645b01002 Add the ability to track HasNSW and HasNUW on more kinds of SCEV expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09 00:10:36 +00:00
Chris Lattner
8ef27511e3 remove LoopVR pass. According to Nick:
"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83531 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-08 06:42:44 +00:00
Devang Patel
beab41b874 Extract subprogram and compile unit information from the debug info attached to an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83491 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07 22:04:08 +00:00
Dan Gohman
c6f69e94fa Remove an unnnecessary LLVMContext argument in
ConstantFoldLoadThroughGEPConstantExpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-05 16:36:26 +00:00
Mike Stump
e4250396ea Expand api out in the usual inserter way, though, I do have a
question, can we get rid of the BasicBlock versions of all inserters
and use Head == 0 to indicate the old case when GetInsertBlock == 0?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83216 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 22:08:58 +00:00
Devang Patel
ecbeb1a490 Add isFOO() helpers. Fix getDirectory() and getFilename() for DIScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83180 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30 22:34:41 +00:00
Mike Stump
3e4c9bdb67 Add a way for a frontend to generate more complex dwarf location
information.  This allows arbitrary code involving DW_OP_plus_uconst
and DW_OP_deref.  The scheme allows for easy extention to include,
any, or all of the DW_OP_ opcodes.  I thought about just exposing all
of them, but, wasn't sure if people wanted the dwarf opcodes exposed
in the api.  Is that a layering violation?

With this scheme, the entire existing block scheme used by llvm-gcc
can be switched over to the new scheme.  I think that would be
cleaner, as then the compiler specific bits are not present in llvm
proper.  Before the old code can be yanked however, similar code in
clang would have to be removed.

Next up, more testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83120 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30 00:08:22 +00:00
Devang Patel
5ccdd10b1a Remove std::string uses from DebugInfo interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83083 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-29 18:40:58 +00:00
Dan Gohman
9450b0e1a6 Move the dominator verification code out of special code embedded within
the PassManager code into a regular verifyAnalysis method.

Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28 00:27:48 +00:00
Dan Gohman
3069b3193d Extract the code for inserting a loop into the loop queue into
a separate function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82946 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 23:49:43 +00:00
Dan Gohman
be1123464a Remove a redundant assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82907 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 17:48:37 +00:00
Dan Gohman
22bf8f21b4 Add dominates and releaseMemory member functions to PostDominatorTree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 17:39:12 +00:00
Dan Gohman
6e70e31810 Add a properlyDominates member function to ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82898 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27 15:26:03 +00:00
Dan Gohman
b7532e2548 Add a comment describing natural loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-26 15:09:53 +00:00
Daniel Dunbar
48a097bfb6 Switch DIDescriptor to use a TrackingVH. - This makes it much safer to work with debug info, since it was extraordinarily easy to have dangling pointers thanks to MDNode uniquing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82507 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-22 02:03:18 +00:00
Chris Lattner
75c7c995b7 move DominatorTree::dominates for instructions out of line,
no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-21 22:30:50 +00:00
Daniel Dunbar
7dd76a1088 Prefer super class constructor to explicit initialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19 20:40:28 +00:00
Daniel Dunbar
3fc19bbbbb Tabs -> spaces (really?)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19 20:40:21 +00:00
Daniel Dunbar
f612ff6cfb Strip trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82332 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19 20:40:05 +00:00
Nick Lewycky
875646f376 Lett users of sparse propagation do their own thing with phi nodes if they want
to. This can be combined with LCSSA or SSI form to store more information on a
PHINode than can be computed by looking at its incoming values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82317 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19 18:33:36 +00:00
Victor Hernandez
88d9839d07 Update malloc call creation code (AllocType is now the element type of the malloc, not the resulting type).
In getMallocArraySize(), fix bug in the case that array size is the product of 2 constants.

Extend isArrayMalloc() and getMallocArraySize() to handle case where malloc is used as char array.

Ensure that ArraySize in LowerAllocations::runOnBasicBlock() is correct type.

Extend Instruction::isSafeToSpeculativelyExecute() to handle malloc calls.

Add verification for malloc calls.

Reviewed by Dan Gohman.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-18 19:20:02 +00:00
Dan Gohman
1f96e67f78 Teach ScalarEvolution how to reason about no-wrap flags on loops
where the induction variable has a non-unit stride, such as {0,+,2}, and
there are expressions such as {1,+,2} inside the loop formed with
or or add nsw operators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82151 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-17 18:05:20 +00:00
Devang Patel
1b75f44bd9 Provide a way to extract location info from DILocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82064 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16 18:20:05 +00:00
Andreas Neustifter
9233272679 Reapplied r81355 with the problems fixed.
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090907/086737.html and
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090907/086746.html)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16 11:35:50 +00:00
Dan Gohman
75144f93eb Fix apostrophos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15 15:08:33 +00:00
Chris Lattner
a51c39cc32 add a new CallGraphNode::replaceCallEdge method and use it from
argpromote to avoid invalidating an iterator.  This fixes PR4977.
All clang tests now pass with expensive checking (on my system 
at least).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15 05:40:35 +00:00
Dan Gohman
83e3c4f9d7 Give these files top-level comments that describe the current code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81473 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10 23:07:18 +00:00
Evan Cheng
fabcb9127f Add malloc call utility functions. Patch by Victor Hernandez.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10 04:36:43 +00:00
Andreas Neustifter
07abe17bd2 Add the first functions for updating ProfileInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 17:52:57 +00:00
Chris Lattner
273a488cdf revert r81335, which breaks the build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 16:00:57 +00:00
Andreas Neustifter
1f3b00272a Updated ProfileInfo to have clean seperation between different sentinels.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 12:48:26 +00:00
Dan Gohman
5c89b5240c Re-apply r80926, with fixes: keep the domtree informed of new blocks
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81221 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 15:45:00 +00:00
Chris Lattner
45336a6f22 fix PR4915, a crash in -debug mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81177 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 01:22:54 +00:00
Chris Lattner
cf5128ec01 add some comments to describe the invariants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81173 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 00:06:16 +00:00
Duncan Sands
59bf4fcc06 Public and private corrections, warned about by icc (#304).
Patch by Erick Tryzelaar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81107 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06 08:55:57 +00:00
Evan Cheng
8f78a58e14 Revert r80926. It causes loop unswitch assertion and slow down some JIT tests significantly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81101 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06 02:26:10 +00:00
Dan Gohman
8fc5ad3369 Add a verifyAnalysis to LoopInfo, LoopSimplify, and LCSSA form that verify
that these passes are properly preserved.

Fix several transformation passes that claimed to preserve LoopSimplify
form but weren't.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80926 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 16:31:42 +00:00
Dan Gohman
f0608d829a Move getUniqueExitBlocks from LoopBase to Loop, since they depend on
LoopSimplify form, which is currently only available on Loops (and
not MachineLoops). Also, move the code out of the header file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80923 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 16:10:48 +00:00
Dan Gohman
e7125f4bab Remove references to expression "handles", which are no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80918 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03 15:00:26 +00:00
Dan Gohman
3445d9a72a Add const qualifiers to dominates' arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80801 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02 17:05:05 +00:00
Andreas Neustifter
da5ea94554 OptimalEdgeProfiling: Reading in Profiles.
This enables LLVM to read the OptimalEdgeProfiles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 19:08:51 +00:00
Andreas Neustifter
f771dae69a OptimalEdgeProfiling: Creation of profiles.
This adds the instrumentation and runtime part of OptimalEdgeProfiling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 19:03:44 +00:00
Chris Lattner
da230cb876 remove CallGraphNode::replaceCallSite, it is redundant with other APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 18:52:39 +00:00
Andreas Neustifter
e885af9fb7 Preparation for Optimal Edge Profiling:
Optimal edge profiling is only possible when blocks with no predecessors get an
virtual edge (BB,0) that counts the execution frequencies of this
function-exiting blocks.
This patch makes the necessary changes before actually enabling optimal edge profiling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 10:06:05 +00:00
Andreas Neustifter
e7ddcfdebe Preparation for Optimal Edge Profiling:
This adds a pass to verify the current profile against the flow conditions.
This is very helpful when later on trying to perserve the profiling information
during all passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80666 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 08:48:42 +00:00
Chris Lattner
a541b0fde2 Change CallGraphNode to maintain it's Function as an AssertingVH
for sanity.  This didn't turn up any bugs.

Change CallGraphNode to maintain its "callsite" information in the 
call edges list as a WeakVH instead of as an instruction*.  This fixes
a broad class of dangling pointer bugs, and makes CallGraph have a number
of useful invariants again.  This fixes the class of problem indicated
by PR4029 and PR3601.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 06:31:31 +00:00
Devang Patel
e5b1454cdd Add virtual destructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 05:04:28 +00:00
Devang Patel
f98d8fee3c Introduce DILocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80648 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 01:14:15 +00:00
Devang Patel
58e7a2dfc2 Add getDirectory() and getFilename() interface to DIScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80647 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 00:53:21 +00:00
Devang Patel
82dfc0cd8c Subprogram is a scope. Derive DISubprogram from DIScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80637 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 22:47:13 +00:00
Devang Patel
5e005d814f Rename DIBlock as DILexicalBlock.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80633 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 22:00:15 +00:00
Devang Patel
c9f322d9a6 Derive DICompileUnit from DIScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80627 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 21:34:44 +00:00
Caroline Tice
dc8f6049d1 Add flag to mark structs for Apple Block "byref" variables; also add code to
modify the type and location debug information for these variables to match the
programmer's expectations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 21:19:37 +00:00
Dan Gohman
4221489908 Extend the ValuesAtScope cache to cover all expressions, not just
SCEVUnknowns, as the non-SCEVUnknown cases in the getSCEVAtScope code
can also end up repeatedly climing through the same expression trees,
which can be unusably slow when the trees are very tall.

Also, add a quick check for SCEV pointer equality to the main
SCEV comparison routine, as the full comparison code can be expensive
in the case of large expression trees.

These fix compile-time problems in some pathlogical cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 21:15:23 +00:00
Devang Patel
43d98b3c4e Introduce DIScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80620 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 20:44:45 +00:00
Devang Patel
6ceea33c5e Simplify isDerivedType() and other predicate interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 18:49:10 +00:00
Chris Lattner
be577659d3 Step #1 to giving Callgraph some sane invariants. The problems with callgraph
stem from the fact that we have two types of passes that need to update it:

1. callgraphscc and module passes that are explicitly aware of it
2. Functionpasses (and loop passes etc) that are interlaced with CGSCC passes
   by the CGSCC Passmgr.

In the case of #1, we can reasonably expect the passes to update the call
graph just like any analysis.  However, functionpasses are not and generally
should not be CG aware.  This has caused us no end of problems, so this takes
a new approach.  Logically, the CGSCC Pass manager can rescan every function 
after it runs a function pass over it to see if the functionpass made any 
updates to the IR that affect the callgraph.  This allows it to catch new calls
introduced by the functionpass.

In practice, doing this would be slow.  This implementation keeps track of
whether or not the current scc is dirtied by a function pass, and, if so, 
delays updating the callgraph until it is actually needed again.  This was
we avoid extraneous rescans, but we still have good invariants when the
callgraph is needed.

Step #2 of the "give Callgraph some sane invariants" is to change CallGraphNode
to use a CallBackVH for the callsite entry of the CallGraphNode.  This way
we can immediately remove entries from the callgraph when a FunctionPass is
active instead of having dangling pointers.  The current pass tries to tolerate
these dangling pointers, but it is just an evil hack.

This is related to PR3601/4835/4029.  This also reverts r80541, a hack working
around the sad lack of invariants.





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80566 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 07:23:46 +00:00
Chris Lattner
b374b90e81 Fix PR4834, a tricky case where the inliner would resolve an
indirect function pointer, inline it, then go to delete the body.
The problem is that the callgraph had other references to the function,
though the inliner had no way to know it, so we got a dangling pointer
and an invalid iterator out of the deal.

The fix to this is pretty simple: stop the inliner from deleting the
function by knowing that there are references to it.  Do this by making
CallGraphNodes contain a refcount.  This requires moving deletion of 
available_externally functions to the module-level cleanup sweep where
it belongs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 03:15:49 +00:00
Chris Lattner
5095e3d1d1 Fix some nasty callgraph dangling pointer problems in
argpromotion and structretpromote.  Basically, when replacing
a function, they used the 'changeFunction' api which changes
the entry in the function map (and steals/reuses the callgraph
node).

This has some interesting effects: first, the problem is that it doesn't
update the "callee" edges in any callees of the function in the call graph.
Second, this covers for a major problem in all the CGSCC pass stuff, which 
is that it is completely broken when functions are deleted if they *don't*
reuse a CGN.  (there is a cute little fixme about this though :).

This patch changes the protocol that CGSCC passes must obey: now the CGSCC 
pass manager copies the SCC and preincrements its iterator to avoid passes
invalidating it.  This allows CGSCC passes to mutate the current SCC.  However
multiple passes may be run on that SCC, so if passes do this, they are now
required to *update* the SCC to be current when they return.

Other less interesting parts of this patch are that it makes passes update
the CG more directly, eliminates changeFunction, and requires clients of
replaceCallSite to specify the new callee CGN if they are changing it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80527 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31 00:19:58 +00:00
Chris Lattner
23603a61c9 add a dump() method on callgraph.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80524 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30 22:24:32 +00:00
Devang Patel
e4b275610a Reapply 79977.
Use MDNodes to encode debug info in llvm IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 23:24:31 +00:00
Devang Patel
a1ba269a27 Closure is a very generic name. Use AppleBlock instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 23:51:51 +00:00
Gabor Greif
7362ce08cb eliminate all 80-col violations that I have introduced in my recent checkins (and some others more)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80304 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 23:44:33 +00:00
Dan Gohman
c75cd159cd Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80266 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 17:59:08 +00:00
Dan Gohman
1af0513be7 Be somewhat more consistent about const qualifiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80264 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 17:54:15 +00:00
Dan Gohman
5753a4a003 Global Aliases are not identifiable objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80263 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 17:52:56 +00:00
Dan Gohman
846a2f2703 Handle TargetData with const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 17:51:25 +00:00
Dan Gohman
0aeed044d6 Strip trailing whitespace from blank lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80259 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 17:29:49 +00:00
Gabor Greif
1e1de49394 the buildbots revealed one more breakage. fix. (why didn't I see this?)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 06:59:20 +00:00
Gabor Greif
f0891be8bd Clean up the minor mess I caused with removing iterator.h. I shall take care of 80-col violations and the FIXME later. (Thanks goodness that I live in another continent, so the monkeypox did not strike me :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80224 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 06:41:46 +00:00
Dan Gohman
4bac4b9899 Move ProfileInfo::Edge's operator<< out of line. Among other benefits,
this eliminates the ATTRIBUTE_USED, which wasn't being used in a manner
acceptable to some GCC versions, according to the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80103 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 15:56:38 +00:00
Andreas Neustifter
0ef68e8fbb Bugfix for r80100, forgot include. Sorry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80101 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 15:18:38 +00:00
Andreas Neustifter
ff271e1353 Implemented comments from Daniel Dunbar.
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090817/084958.html)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80100 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 15:13:44 +00:00
Dan Gohman
2385e0e22c Create a ScalarEvolution-based AliasAnalysis implementation.
This is a simple AliasAnalysis implementation which works by making
ScalarEvolution queries. ScalarEvolution has a more complete understanding
of arithmetic than BasicAA's collection of ad-hoc checks, so it handles
some cases that BasicAA misses, for example p[i] and p[i+1] within the
same iteration of a loop.

This is currently experimental. It may be that the main use for this pass
will be to help find cases where BasicAA can be profitably extended, or
to help in the development of the overall AliasAnalysis infrastructure,
however it's also possible that it could grow up to become a directly
useful pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 14:53:06 +00:00
Devang Patel
8245988835 Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 05:01:18 +00:00
Chris Lattner
e1f515ea59 fix some funky indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 04:21:30 +00:00
Devang Patel
8af76bdb74 Add isClosure() predicate. This is used to add DW_AT_APPLE_block attribute.
Patch by Caroline Tice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80061 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 00:39:50 +00:00
Devang Patel
2a610c7387 Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 05:24:07 +00:00
Andreas Neustifter
96135b617a This patch cleans up the ProfileInfo by
*) introducing new data type and export function of edge info for whole function (preparation for next patch).
*) renaming variables to make clear distinction between data and containers that contain this data.
*) updated comments and whitespaces.
*) made ProfileInfo::MissingValue a double (as it should be...).

(Discussed at http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090817/084955.html.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 21:37:48 +00:00
Chris Lattner
9661c13c37 remove a few dead insertion methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79882 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 02:39:26 +00:00
Chris Lattner
103289e938 convert LoopInfo.h and GraphWriter.h to use raw_ostream
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 07:19:13 +00:00
Chris Lattner
45cfe545ec Change Pass::print to take a raw ostream instead of std::ostream,
update all code that this affects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 06:03:38 +00:00
Chris Lattner
791102fb11 eliminate the std::ostream form of WriteAsOperand and update clients.
This also updates dominator related stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79825 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 05:17:37 +00:00
Chris Lattner
bdff548e4d eliminate the "Value" printing methods that print to a std::ostream.
This required converting a bunch of stuff off DOUT and other cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 04:37:46 +00:00
Dan Gohman
5078f84c82 Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrap
and hasNoSignedWrap, for consistency with the nuw and nsw properties.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20 17:11:38 +00:00
Dan Gohman
4c0d5d5db8 Various comment and whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20 16:42:55 +00:00
Dan Gohman
c40f17b087 Generalize ScalarEvolution to be able to analyze GEPs when
TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 16:46:41 +00:00
Benjamin Kramer
12ddd40953 Make LLVMContext and LLVMContextImpl classes instead of structs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 17:45:13 +00:00
Dan Gohman
ffef8acc3e Tidy #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78677 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 16:02:12 +00:00
Devang Patel
72bcdb6c9b Keep track of DIType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 22:09:58 +00:00
Daniel Dunbar
c43782cf71 Some ProfileInfo cleanups.
- Part of optimal static profiling patch sequence by Andreas Neustifter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 18:59:03 +00:00
Daniel Dunbar
55e354ac0e Add a basic static ProfileInfo provider (ProfileEstimatorPass).
- Part of optimal static profiling patch sequence by Andreas Neustifter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78484 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 18:44:18 +00:00
Daniel Dunbar
caaa49336b More ProfileInfo improvements.
- Part of optimal static profiling patch sequence by Andreas Neustifter.

 - Store edge, block, and function information separately for each functions
   (instead of in one giant map).

 - Return frequencies as double instead of int, and use a sentinel value for
   missing information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 17:43:09 +00:00
Andreas Bolka
699db99c1a SIV/MIV classification for LDA.
LoopDependenceAnalysis::getLoops is currently O(N*M) for a loop-nest of
depth N and a compound SCEV of M atomic SCEVs. As both N and M will
typically be very small, this should not be a problem. If it turns out
to be one, rewriting getLoops as SCEVVisitor will reduce complexity to
O(M).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07 18:23:41 +00:00
Devang Patel
bceda93251 Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06 20:57:44 +00:00
Devang Patel
27a201d236 Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06 15:39:34 +00:00
Daniel Dunbar
c9008c5cc7 Make block and function count available via ProfileInfo.
- Part of optimal static profiling patch sequence by Andreas Neustifter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 21:51:16 +00:00
Daniel Dunbar
ee16638bfc Remove unnecessary ProfileInfoLoader methods.
- Part of optimal static profiling patch sequence by Andreas Neustifter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 15:55:56 +00:00
Andreas Bolka
831f6f6d2a ZIV tester for LDA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78157 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 04:26:05 +00:00
Owen Anderson
48b2f3e485 Factor some of the constants+context related code out into a separate header, to make LLVMContextImpl.h
not hideous.  Also, fix some MSVC compile errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78115 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04 22:41:48 +00:00
Andreas Bolka
5eca4525f4 Restrict LDA to affine subscripts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77932 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 01:03:48 +00:00
Dan Gohman
81acc554b9 Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 19:26:54 +00:00
Dan Gohman
a818c30d66 Fix some problems with ASTCallbackVH in its use as a DenseMap key.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77696 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 18:21:48 +00:00
Devang Patel
b4d31306a4 Process DbgDeclareInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77694 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 18:18:52 +00:00
Dan Gohman
b5b56ba9d4 Use CallbackVH in AliasSetTracker to avoid getting stuck with
dangling Value*s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 20:21:41 +00:00
Devang Patel
98c65173bb s/DebugInfoEnumerator/DebugInfoFinder/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 18:25:15 +00:00
Devang Patel
e802f1c4c3 walk DbgRegionStartInst and DbgRegionEndInst
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77604 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 17:30:23 +00:00
Andreas Bolka
15f72dbf97 Skeleton for pairwise subscript testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 05:35:53 +00:00
Devang Patel
d2f79a1346 Add DebugInfoEnumerator to collect debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 19:55:13 +00:00
Andreas Bolka
c3cc45aa8b Simplify LDA-internal interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 19:50:13 +00:00
Devang Patel
e2d5a6c3bb 80 columns!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77243 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27 20:30:05 +00:00
Dan Gohman
07ad19b509 Fix wording in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27 16:09:48 +00:00
Dan Gohman
7e77f79591 Fix a few comments to say "backedge-taken count" instead of
"trip count".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 16:18:38 +00:00
Dan Gohman
fef8bb24de Instead of eagerly creating new SCEVs to replace all SCEVs that are
affected after a PHI node has been analyzed, just remove affected
SCEVs from the Scalars map, so that they'll be (lazily) recreated as
needed. This avoids creating SCEV objects that aren't actually needed.

Also, rewrite the associated def-use walking code to be non-recursive
and to continue traversing past Instructions that don't have an
entry in the Scalars map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77032 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 01:13:03 +00:00
Dan Gohman
fc2a3ed0c9 Make AliasAnalysis and related classes use
getAnalysisIfAvailable<TargetData>().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77028 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 00:48:42 +00:00
Andreas Bolka
0baa25d539 Forward-declare raw_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 23:19:28 +00:00
Dan Gohman
d3ff304557 Give SCEVAddRecExpr no-signed-overflow and no-unsigned-overflow flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76928 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 01:01:06 +00:00
Dan Gohman
2f1b15386f Give the SCEV class a SubclassData field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76927 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 00:59:53 +00:00
Dan Gohman
a271d36d7c Fix whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76926 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 00:55:33 +00:00
Andreas Bolka
b4c28e97f4 Cache dependence computation using FoldingSet.
This introduces an LDA-internal DependencePair class. The intention is,
that this is a place where dependence testers can store various results
such as SCEVs describing conflicting iterations, breaking conditions,
distance/direction vectors, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23 14:32:46 +00:00
Andreas Bolka
3b59dd886a Minor cosmetics: indentation, formatting, naming.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76839 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23 01:57:06 +00:00
Devang Patel
c4999d71e1 Add replaceAllUsesWith() to FE replace debug info constructs while building complex types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 18:23:44 +00:00
Owen Anderson
e922c02019 Get rid of the Pass+Context magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:24:57 +00:00
Dan Gohman
0f4b285a5b Replace the original ad-hoc code for determining whether (v pred w) implies
(x pred y) with more thorough code that does more complete canonicalization
before resorting to range checks. This helps it find more cases where
the canonicalized expressions match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 23:03:19 +00:00
Dan Gohman
fc8deb971d Commit this change, to accompany r76232.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76238 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17 21:03:54 +00:00
Owen Anderson
001dbfebcb Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
our current context-passing stuff, which is also fixed here


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16 18:04:31 +00:00
Dan Gohman
9377386493 Add an isLoopSimplifyForm() predicate, following the example of
isLCSSAForm(), to test whether a loop is in the form guaranteed
by the LoopSimplify pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16 16:16:23 +00:00
Dan Gohman
688ed8583e Tidy up #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76072 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16 15:32:28 +00:00
Dan Gohman
206613b289 Fix a typo in a comment that Duncan noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75804 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 17:38:23 +00:00
Dan Gohman
bdc017edac Make makeLoopInvariant report whether it made any changes or not,
and use this to simplify more code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15 01:25:43 +00:00
Torok Edwin
969f28dfb6 Introduce a pointertracking pass.
For now this only computes the allocated size of the memory pointed to by a
pointer, and offset a pointer from allocated pointer.
The actual checkLimits part will come later, after another round of review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 18:44:28 +00:00
Torok Edwin
c23197a26f llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 16:55:14 +00:00
Daniel Dunbar
858cb8a5e0 ProfileInfo interface tweaks.
- Add getExecutionCount(const Function).

 - Add helper Edge type.

 - constify.

 - No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 06:58:59 +00:00
Dan Gohman
a342026504 Introduce a new LoopInfo utility function makeLoopInvariant, which
works similar to isLoopInvariant, except that it will do trivial
hoisting to try to make the value loop invariant if it isn't already.
This makes it easier for transformation passes to clear trivial
instructions out of the way (the regular LICM pass doesn't run
until relatively late). This is code factored out of LoopSimplify
and other places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75578 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 01:06:29 +00:00
Dan Gohman
03ee68a145 Forward-declare Loop and LoopInfo instead of #including LoopInfo.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75529 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 22:19:41 +00:00
Dan Gohman
16a2c927e9 Move isLCSSAForm, isLoopInvariant, getCanonicalInductionVariable,
and related functions out of LoopBase and into Loop, since they
are specific to BasicBlock-based loops. This also allows the code
to be moved out-of-line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75523 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 22:02:44 +00:00
Dan Gohman
c8d76d5afb Make Loop and MachineLoop be subclasses of LoopBase, rather than typedefs,
using the Curiously Recurring Template Pattern with LoopBase.

This will help further refactoring, and future functionality for
Loop. Also, Headers can now foward-declare Loop, instead of pulling
in LoopInfo.h or doing tricks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75519 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 21:51:15 +00:00
Dan Gohman
85b05a2e60 Reapply 75252, with a fix to avoid the infinite recursion case. The
check for avoiding re-analyzing a widening cast needed to happen
earlier, as getSCEV itself may result in a isLoopGuardedByCond query.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 21:35:55 +00:00
Dan Gohman
c050fd94c2 Convert SCEV from FoldingSetNode to FastFoldingSetNode. This eliminates
a bunch of redundent code in Profile methods, and prepares for upcoming
changes to do improved memoization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13 20:50:19 +00:00
Daniel Dunbar
deb052a3dd Match declaration to definition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-12 23:50:34 +00:00
Daniel Dunbar
460d16e126 Match declaration to definition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-12 22:46:08 +00:00
Nick Lewycky
d0cca24150 Revert r75252 which was causing some crashes at compile time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11 20:38:25 +00:00
Torok Edwin
c25e7581b9 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11 20:10:48 +00:00
Dan Gohman
1afdc5f356 Remove ScalarEvolution::hasSCEV, which isn't being used, and which
breaks encapsulation. Also remove a dead prototype for setSCEV.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10 20:25:29 +00:00
Dan Gohman
1b342583f6 Generalize ScalarEvolution's cast-folding code to support more kinds
of loops. Add several new functions to for working with ScalarEvolution's
add-hoc value-range analysis functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10 16:42:52 +00:00
Owen Anderson
45524c58fd Finish pushing LLVMContext through the IRBuilder/ConstantFolder interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10 00:49:53 +00:00
Andreas Bolka
7b9547089f Fix typo, trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75179 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-09 22:14:25 +00:00
Owen Anderson
d1fbd14294 Push LLVMContext _back_ through IRBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75040 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08 20:50:47 +00:00
Dan Gohman
59ae6b9987 Make the code that updates ScalarEvolution's internal state in response
to a loop deletion more thorough. Don't prune the def-use tree search at
instructions that don't have SCEVs computed, because an instruction with
a user that has a computed SCEV may itself lack a computed SCEV.  Also,
remove loop-related values from the ValuesAtScopes and
ConstantEvolutionLoopExitValues maps as well.

This fixes a regression in 483.xalancbmk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75030 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08 19:23:34 +00:00
Owen Anderson
9903527c14 Re-LLVMContext-ize DebugInfo, now with less breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07 17:12:53 +00:00
Dan Gohman
0bba49cebc Change all SCEV* to SCEV *.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74918 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07 17:06:11 +00:00
Owen Anderson
07cf79ef53 "LLVMContext* " --> "LLVMContext *"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74878 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06 23:00:19 +00:00
Owen Anderson
76f600b205 Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06 22:37:39 +00:00
Owen Anderson
508955156a Thread LLVMContext through the constant folding APIs, which touches a lot of files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06 18:42:36 +00:00
Devang Patel
7e1e31f467 Simplify debug info intrisinc lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02 22:43:26 +00:00
Devang Patel
dfc8536d7b Fix typo.
Thanks Duncan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02 17:17:03 +00:00
Devang Patel
9e529c3f78 Add debug info utility routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02 01:15:24 +00:00
Dan Gohman
f530c92cd5 Fix a bunch of other places that used operator[] to test whether
a key is present in a std::map or DenseMap to use find instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74676 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02 00:17:47 +00:00
Andreas Bolka
fecbc59be6 Use AA to check objects before LDA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74647 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 21:45:23 +00:00
Misha Brukman
b1d7a5d114 Use correct format for LLVM header #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74620 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01 17:51:56 +00:00
Andreas Bolka
f67799501c Drop redundant print impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30 21:33:56 +00:00
Andreas Bolka
f35626d3cd Minimal LDA interface, maximally conservative tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:21:21 +00:00
Andreas Bolka
707207adae LDA analysis output scaffolding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74400 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-28 00:16:08 +00:00
Dan Gohman
9d59d9f849 Eliminate a layer of indirection in LoopInfo and MachineLoopInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:22:48 +00:00
Dan Gohman
1c34375f79 Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead
of a team of individual allocations and a team of std::maps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74393 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:21:31 +00:00
Dan Gohman
267a385342 Change SCEVExpander to use an IRBuilder to emit instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74391 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 21:18:18 +00:00
Dan Gohman
667d787c0a Incorporate the insertion point into the key of SCEVExpander's CSE map.
This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known.  This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.

This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 22:53:46 +00:00
Jeffrey Yasskin
d8ac1be686 Delete LoopPass::runOnFunctionBody. It was never used or implemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74320 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 20:42:50 +00:00