Commit Graph

542 Commits

Author SHA1 Message Date
Chris Lattner
5c70dc0456 Expose must alias information for global variables, implementing: DSGraph/mustalias.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6973 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-29 00:54:08 +00:00
Chris Lattner
aed2c6d2cb If the alias analysis algorithm we are using can provide MUST alias information,
expose it directly as value numbering information


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6972 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-29 00:53:34 +00:00
Chris Lattner
1842a90e0b Count operands to instructions as well as just results. This allows for global variables to be checked as well
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6970 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-29 00:07:11 +00:00
Chris Lattner
312edd330f Propagate globals graph from the local to bu to td globals graphs. This
fixes bug: DSGraph/buglobals.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6947 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 22:14:55 +00:00
Chris Lattner
5e459dbc52 Drop references to globals who do exist in the globals graph, but are never
read or written to.  Keep track of how many times this happens.  This should
be good for deleting things like references to type information in C++ classes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6946 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 22:10:58 +00:00
Chris Lattner
72d50a090f Avoid double negatives
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6945 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 21:58:28 +00:00
Chris Lattner
934fe856b5 New pass to perform DSA based optimizations. Initially we just support turning
globals into constants if we can prove it's safe


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6941 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 21:54:55 +00:00
Chris Lattner
5db61fdc8a Fix bug: LevelRaise/2003-06-25-ExprAnalysis.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-25 17:09:03 +00:00
Chris Lattner
e0f4b98026 Remove support for the MultiObject flag, which was fundamentally broken
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6840 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-22 03:03:52 +00:00
Chris Lattner
bd92b73be7 * Changes to make NodeType be private to DSNode.
* Add new MultiObject flag to DSNode which keeps track of whether or not
  multiple objects have been merged into the node, allowing must-alias info
  to be tracked.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6794 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-19 21:15:11 +00:00
Chris Lattner
388f669d95 Implement handling of constantexprs for disambiguation. This implements
BasicAA/featuretest.ll:constexpr_test


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6740 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-17 15:25:37 +00:00
Chris Lattner
efa095e418 Avoid divide by zero errors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6738 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-17 15:07:20 +00:00
Chris Lattner
e158b19a3c Nodes get forwarded when they are collapsed currently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6696 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-16 12:08:18 +00:00
Chris Lattner
a75c8c4da8 Remove bogus assertion: a node with no referrers could be collapsed if field-sensitivity was disabled
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6695 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-16 12:07:39 +00:00
Chris Lattner
28c6cf22de Implement forwarding from stores to loads of must-aliased pointers.
This implements: GCSE/2003-06-13-LoadStoreEliminate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6694 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-16 12:06:41 +00:00
Chris Lattner
920bd79f34 Be more robust in the face of undefined behavior.
Fixes bug: BasicAA/2003-06-01-AliasCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6538 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-02 05:42:39 +00:00
Chris Lattner
a92dc19397 Fix bug: CBackend/2003-05-31-MissingStructName.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6495 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-31 23:30:52 +00:00
Chris Lattner
ab2b328c78 Eliminate unnecessary ->get calls that are now automatically handled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6397 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-29 15:12:27 +00:00
Vikram S. Adve
a22eace55b Renamed MachienOperand::opIsDef to MachineOperand::opIsDefOnly()
and related functions and flags.  Fixed several bugs where only
"isDef" was being checked, not "isDefAndUse".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6342 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-27 00:06:48 +00:00
Chris Lattner
9098f64ccc Fix Bug: BasicAA/2003-05-21-GEP-Problem.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6270 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-21 20:23:26 +00:00
Misha Brukman
1a1046b7bc The word operands' has an r' in it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6250 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-20 20:36:39 +00:00
Misha Brukman
a98cd4578f Sparc instruction opcodes now all live under the `V9' namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6249 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-20 20:32:24 +00:00
Misha Brukman
f117cc9ee6 s/convertable/convertible/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6248 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-20 18:45:36 +00:00
Chris Lattner
39c987a6a2 Fix bug: Analysis/LoopInfo/2003-05-15-NestingProblem.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6230 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-15 18:03:51 +00:00
Chris Lattner
577385edd8 Fix miscompilation in Fhourstones and bug: LICM/2003-05-02-LoadHoist.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5994 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-03 03:42:08 +00:00
Chris Lattner
99224aec78 Fix bug: LoopPreheaders/2003-04-25-AssertFail.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5959 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-26 19:34:18 +00:00
Chris Lattner
807b7055b2 Fix BasicAA/2003-04-25-GEPCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5940 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-25 18:03:06 +00:00
Chris Lattner
2ee82e05e3 Remove unneccesary &*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5871 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-23 16:36:11 +00:00
Chris Lattner
b581148bd9 Fix bug: BasicAA/2003-04-22-GEPProblem.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5858 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-22 22:00:27 +00:00
Chris Lattner
ac7ad68cc0 Fix bug: IndVarSimplify/2003-04-16-ExprAnalysis.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5795 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-16 22:50:19 +00:00
Chris Lattner
4ad02e726d Add new linkage types to support a real frontend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5786 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-16 20:28:45 +00:00
Chris Lattner
3e76157d5a Remove unneccesary forward decl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5710 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-06 16:37:29 +00:00
Chris Lattner
506b4e4368 Fix bug: BasicAA/2003-03-04-GEPCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5695 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-04 16:40:17 +00:00
Chris Lattner
319d05bff4 ADd two new 'add' methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5691 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-03 23:28:05 +00:00
Chris Lattner
088b639e3a Don't apply type information to load instructions if it will cause collapsing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5684 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-03 17:13:31 +00:00
Chris Lattner
ff2d556bab Fix a problem with negative indexes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5681 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-02 23:43:34 +00:00
Chris Lattner
bb05f1ee93 Add dump method for Loops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5671 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-28 16:54:45 +00:00
Chris Lattner
a94837a28f Simplify a bit by using a new member function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5662 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-27 22:48:08 +00:00
Chris Lattner
f2e2925f95 Change behavior of changeExitBlock function to replace all instances of exit block
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5661 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-27 22:37:44 +00:00
Chris Lattner
5a8a2912d5 Fix bug: LICM/2003-02-27-PreheaderProblem.ll
There may be a single outside predecessor and
still need a new loop-preheader if the predecessor has multiple
successors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5656 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-27 21:51:38 +00:00
Chris Lattner
5f82b8a1ad - LoopInfo now calculates and tracks loop exit blocks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5650 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-27 00:38:34 +00:00
Chris Lattner
31a9d185bf Make the aliassettracker much more precise by actually tracking size
information for various accesses.  What a concept.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5647 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 22:11:00 +00:00
Chris Lattner
c330ee6f02 Fix bug: BasicAA/2003-02-26-AccessSizeTest.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5645 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 21:57:23 +00:00
Chris Lattner
a36635aba7 Fix several bugs in basic-aa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5643 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 21:28:49 +00:00
Chris Lattner
8dcd17c938 Add new -no-aa implementation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5641 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 19:57:10 +00:00
Chris Lattner
d501c13b7d Move BasicAA pass out to it's own header file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5640 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 19:41:54 +00:00
Chris Lattner
a612afc54e Adjust to implement new AA interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5638 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 19:29:36 +00:00
Chris Lattner
e4b3339b9c Adjust to new AA interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5637 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 19:29:16 +00:00
Chris Lattner
2d0a4a4eb8 Convert to work with new AliasAnalysis interface by conservatively assuming all pointers are arbitrarily large accesses
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5636 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 19:28:57 +00:00
Chris Lattner
f98d8d8611 Calculate and pass load sizes to the alias analysis infrastructure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5635 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-26 19:27:35 +00:00