Commit Graph

824 Commits

Author SHA1 Message Date
Chris Lattner
f286f6fd93 Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp.
Reimplement the xform in Analysis/ConstantFolding.cpp where we can use
targetdata to validate that it is safe.  While I'm in there, fix some const
correctness issues and generalize the interface to the "operand folder".


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


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


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


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


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

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


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

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

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

and

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

Where are these defined?

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43036 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-16 19:59:25 +00:00
Owen Anderson
1aad74c9e8 Begin the process of allowing DomTree on MBB's. Step One: template DomTreeNode by making it a typedef of a templated DomTreeNodeBase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42743 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-08 07:44:39 +00:00
Owen Anderson
9cb7f49ee9 Completely merge the implementation details of DomTree and PostDomTree.
Also, add a FIXME for a bug in PostDomTree calculation I noticed while writing this,


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42593 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 21:25:45 +00:00
Owen Anderson
471ab54df7 Factor some code from the DomTree and PostDomTree calculate methods up into
each one's runOnFunction method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42563 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 03:20:17 +00:00
Dan Gohman
21c276d2fa Add empty() member functions to a few container-like classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42487 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-01 16:01:23 +00:00
Owen Anderson
ab528fe0fb Template-ize more of the DomTree internal implementation details. Only the calculate() methods for DomTree and PostDomTree remain to be merged/template-ized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42476 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-30 04:17:16 +00:00
Duncan Sands
3c5f0233e0 Add newline at end of file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42470 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-29 16:38:37 +00:00
Owen Anderson
303f47b1dd Have PostDomTree use the newly templated DFSPass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42427 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28 01:23:47 +00:00
Owen Anderson
58ec8825d4 Convert DFSPass into a templated friend function, in preparation for making it common to DomTree and PostDomTree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42420 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-27 23:23:00 +00:00
Owen Anderson
68099d58cb Merge significant portions of the DomTree and PostDomTree implementations.
The two remaining unmerged parts are DFSPass, and the Calculate().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42255 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-24 02:29:29 +00:00
Owen Anderson
04fa569320 Factor the calculation details for PostDomTree out of PostDominators.cpp and
into a separate header file.

Next step: merging PostDominatorCalculation.h with DominatorCalculation.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42251 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-23 22:21:00 +00:00
Owen Anderson
eefb31094f Move DFSPass back down into DominatorTree. I need to figure out what the difference is between it
and the PostDomTree version first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42250 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-23 22:16:38 +00:00
Owen Anderson
d20c824b20 Factor the dominator tree calculation details out into DominatorCalculation.h. This
change is not useful in and of itself, but it lays the groundwork for combining
the dominator and postdominator implementations.

Also, factor a few methods that are common to DominatorTree and PostDominatorTree
into DominatorTreeBase.  Again, this will make merging the two calculation methods
simpler in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42248 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-23 21:31:44 +00:00
Owen Anderson
742f9b6682 Add a flag to mark a dirty cache entry. This is not yet used, but will eventually
help non-local memdep caching.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42137 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-19 16:13:57 +00:00
Devang Patel
7c6c55db4d No need to hardcode SmallVector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41228 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 16:39:43 +00:00
Devang Patel
b7211a2ce1 Use SmallVector instead of std::vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41207 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 00:31:24 +00:00
Anton Korobeynikov
96fea337d2 - Use correct header for SCEV inside LoopPass.cpp
- Move SCEVExpander::expand() out-of-line workarounding possible toolchain bug


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41197 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-20 21:17:26 +00:00
Nick Lewycky
ab3c9b1f95 Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41167 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-18 14:46:55 +00:00
Devang Patel
96bf524b53 When one branch of condition is eliminated then head of the other
branch is not necessary immediate dominators of merge blcok in all cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41144 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-17 21:59:16 +00:00
Owen Anderson
4d13de4e3b Cache non-local memory dependence analysis. This is a significant compile
time performance win in most cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41126 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 21:27:05 +00:00
Devang Patel
4d29ddfa06 No need to use iterator to erase basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41074 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-14 16:53:24 +00:00