Find out which calls in the function we need to transform and how.
Next step is to start hacking functions up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2044 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2043 91177308-0d34-0410-b5e6-96231b3b80d8

Rename getCalledMethod to getCalledFunction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2042 91177308-0d34-0410-b5e6-96231b3b80d8

Remove getCalledMethod.  Use getCalledFunction instead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2041 91177308-0d34-0410-b5e6-96231b3b80d8

Modularize code a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2040 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the first step of pool allocation - Creating, initialization, and
destruction of the pools.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2039 91177308-0d34-0410-b5e6-96231b3b80d8

Add an insert method to VAlueHolder to allow batch insertion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2038 91177308-0d34-0410-b5e6-96231b3b80d8

Add new addTypeName method to Module class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2037 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2036 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2035 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2034 91177308-0d34-0410-b5e6-96231b3b80d8

Implement new getFunction and getOrInsertFunction methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2033 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code a bit by using Module::getOrInsertFunction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2032 91177308-0d34-0410-b5e6-96231b3b80d8

Flesh out a bunch more code, print allocations that are poolable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2031 91177308-0d34-0410-b5e6-96231b3b80d8

s/method/function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2030 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function/g

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2029 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code a lot by using the Module::getFunction & getOrInsertFunction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2028 91177308-0d34-0410-b5e6-96231b3b80d8

Expose more information to clients

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2027 91177308-0d34-0410-b5e6-96231b3b80d8

Add getOrInsertFunction and getFunction methods to Module.  This simplifies
some code in the transformations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2026 91177308-0d34-0410-b5e6-96231b3b80d8

Add #define for MethodType

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2025 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2024 91177308-0d34-0410-b5e6-96231b3b80d8

Rename MethodType to FunctionType, provide a #define

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2023 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the reduceApply functions they are obsolete things from the days before
we had a reasonable pass system

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2022 91177308-0d34-0410-b5e6-96231b3b80d8

Implement getEscapingAllocations & getNonEscapingAllocations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2021 91177308-0d34-0410-b5e6-96231b3b80d8

* Rename UnlinkUndistinguishableShadowNodes & RemoveUnreachableShadowNodes
  to reflect that they can eliminate arbitrary nodes.
* Rename the ShadowNodeEliminate.cpp file to EliminateNodes.cpp for the
  same reason

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2020 91177308-0d34-0410-b5e6-96231b3b80d8

* Remove RemoveUnreachableShadowNodes & UnlinkUndistinguishableShadowNodes
  to reflect the fact that they actually operate on arbitrary nodes
* Clean up public interface of FunctionDSGraph
* add getEscapingAllocations & getNonEscapingAllocations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2019 91177308-0d34-0410-b5e6-96231b3b80d8

Ooops, I did such a great job pruning nodes, that I accidentally deleted
ALL allocation nodes... hrm... bad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2018 91177308-0d34-0410-b5e6-96231b3b80d8

Add subdirs to makefile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2017 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of first regression test for mem2reg pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2016 91177308-0d34-0410-b5e6-96231b3b80d8

Makefile change for IPO's that use the Datastructure analysis stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2015 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of Noop pass that will be the pool allocator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2014 91177308-0d34-0410-b5e6-96231b3b80d8

Add hook for pool allocation pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2013 91177308-0d34-0410-b5e6-96231b3b80d8

New file for new pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2012 91177308-0d34-0410-b5e6-96231b3b80d8

Checking for Cameron

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2011 91177308-0d34-0410-b5e6-96231b3b80d8

Many changes
* Simplify a lot of the inlining stuff.  There are still problems, but not
  many
* Break up the Function representation to have a vector for every different
  node type so it is fast to find nodes of a particular flavor.
* Do more intelligent merging of call values
* Allow elimination of unreachable shadow and allocation nodes
* Generalize indistinguishability testing to allow merging of identical calls.
* Increase shadow node merging power

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2010 91177308-0d34-0410-b5e6-96231b3b80d8

* Define some operators on PointerVal and PVS's
* Nodes can determine whether they are foldable with another node
* Rename NewDSNode to AllocDSNode
* The Function graph breaks up all of the node types into individual
  vectors to alloc fast access when you are looking for a particular type
  of node.  Simplifies much code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2009 91177308-0d34-0410-b5e6-96231b3b80d8

Rename constructor function for mem2reg pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2008 91177308-0d34-0410-b5e6-96231b3b80d8

* Move classes around
* rename constructor function
* Move stuff into anonymous namespaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2007 91177308-0d34-0410-b5e6-96231b3b80d8

Rename constructor function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2006 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented promote mem->reg pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2005 91177308-0d34-0410-b5e6-96231b3b80d8

* Add #define to enabled debug messages
* Move removeEdgesTo to be a member of DSNode
* Implement (but #ifdef out) the new, spiffier, method of determining
  shadow node equivalence.  This cannot be enabled until more is
  implemented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2004 91177308-0d34-0410-b5e6-96231b3b80d8

* Implement DSNode::removeAllIncomingEdges
* Implement Critical Shadow node handling
* Implement routines to determine whether an allocation node is a malloc
  or alloca

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2003 91177308-0d34-0410-b5e6-96231b3b80d8

* Add critical node support
* Optimize graph after building it.  This should be unneccesary in the future

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2002 91177308-0d34-0410-b5e6-96231b3b80d8

* Destroy alloca nodes when a graph gets inlined
* Add links to all subtrees when a shadow node gets resolved
* Add critical node handling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2001 91177308-0d34-0410-b5e6-96231b3b80d8

* Add a nice utility method to DSNode
* Export interface to tell whether an alloc node represent a malloc or alloca
* Add the concept of a "critical" shadow node

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2000 91177308-0d34-0410-b5e6-96231b3b80d8

* Optimizers return true on change
* Implement indistinguishable shadow node elimination

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1999 91177308-0d34-0410-b5e6-96231b3b80d8

Fix long line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1998 91177308-0d34-0410-b5e6-96231b3b80d8

* Because of optimization, the shadow nodes between arguments might get
  removed.  Check to see if they are there.
* Repeat optimizations while changing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1997 91177308-0d34-0410-b5e6-96231b3b80d8

Allow isa<DSNode>(..)
Simplification routines return true on change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1996 91177308-0d34-0410-b5e6-96231b3b80d8

* Add support for DataStructure analysis
* Parameterize pass outputting with the printPass template, so analysis
  output can optionally take more arguments than just a stream.  The
  default output mode is just to use operator<< on the analysis.
* Remove CurrentModule hack, in favor of using printPass
* Remove special operator<<'s defined for FindUsedTypes and
  FindUnsafePointerTypes, in favor of printPass specializations
* Use std::cout instead of cout

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1995 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of Datastructure analysis.

Has bugs, but shouldn't crash in theory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1994 91177308-0d34-0410-b5e6-96231b3b80d8

New header file for datastructure analysis

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1993 91177308-0d34-0410-b5e6-96231b3b80d8

Change from Method to Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1992 91177308-0d34-0410-b5e6-96231b3b80d8

Change references from Method to Function
change references from MethodARgument to FunctionArgument

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1991 91177308-0d34-0410-b5e6-96231b3b80d8

Convert to use new style casts instead of direct checking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1990 91177308-0d34-0410-b5e6-96231b3b80d8

change refs to Method to Function
Change references to MEthodArgument to FunctionArgument

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1989 91177308-0d34-0410-b5e6-96231b3b80d8

Change uses of Method to Function
Change uses of methodArgument to FunctionArgument

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1988 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneccesary forward declarations for classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1987 91177308-0d34-0410-b5e6-96231b3b80d8

Transform uses of Method into uses of Function.
Rename MethodArgument to FunctionArgument
Fix some _really_ out of date comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1986 91177308-0d34-0410-b5e6-96231b3b80d8

Allow clients to use FunctionType as well as MethodType for now

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1985 91177308-0d34-0410-b5e6-96231b3b80d8

Make test more rigorous.  It was never reading the non-scalar variables
from memory!  Also, separate the writing and reading routines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1983 91177308-0d34-0410-b5e6-96231b3b80d8

initialize sum variable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1982 91177308-0d34-0410-b5e6-96231b3b80d8

Refix bug: Add back method MachineCodeForInstruction::dropAllReferences.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1980 91177308-0d34-0410-b5e6-96231b3b80d8

Fix padding when allocating local variables on stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1979 91177308-0d34-0410-b5e6-96231b3b80d8

Add methods to support type inquiry.  Rename TmpInstruction values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1978 91177308-0d34-0410-b5e6-96231b3b80d8

Moved to directory Scalar/ and renamed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1977 91177308-0d34-0410-b5e6-96231b3b80d8

Destroy MethodLiveVarInfo after register allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1976 91177308-0d34-0410-b5e6-96231b3b80d8

Use deterministic iterator for SchedGraphs.  This is actually not
useful right now when we only do local scheduling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1975 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fix: nextToTry was not being initialized in one case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1974 91177308-0d34-0410-b5e6-96231b3b80d8

Add option to disable scheduling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1973 91177308-0d34-0410-b5e6-96231b3b80d8

Add option to disable scheduling.
Destroy live-variable information after scheduling so it is
recomputed before later phases (e.g., reg. allocation).
Use deterministic iterator to enumerate sched graphs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1972 91177308-0d34-0410-b5e6-96231b3b80d8

Minor changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1971 91177308-0d34-0410-b5e6-96231b3b80d8

Re-fix bug: Put back MachineCodeForInstruction::dropAllReferences.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1970 91177308-0d34-0410-b5e6-96231b3b80d8

Fix padding for variables allocated on stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1969 91177308-0d34-0410-b5e6-96231b3b80d8

Major overhaul to FoldGetElemPtr to handle mixed array and struct refs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1968 91177308-0d34-0410-b5e6-96231b3b80d8

Use deterministic iterator for treeRoots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1967 91177308-0d34-0410-b5e6-96231b3b80d8

Bug re-fix: put back MachineCodeForInstruction::get(*I).dropAllReferences().
Also re-enable instr. scheduling pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1966 91177308-0d34-0410-b5e6-96231b3b80d8

Change latencies for Load, Store and Branch instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1965 91177308-0d34-0410-b5e6-96231b3b80d8

Major enhancements to how array and structure indices are handled.
Improve checking for constants in Multiply.
Simpler method to keep track of when a node is folded into its parent.
Several other bug fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1964 91177308-0d34-0410-b5e6-96231b3b80d8

Change treeRoots data structure to make enumeration deterministic.
Also, add a flag to marked nodes that do not need code because they
have been folded into the user (parent in the BURG tree).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1963 91177308-0d34-0410-b5e6-96231b3b80d8

Change treeRoots data structure to make enumeration deterministic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1962 91177308-0d34-0410-b5e6-96231b3b80d8

Major overhaul to support arbitrary mixed array and structure indices.
Also moved to the Scalar/ directory and renamed to "MultiDim".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1961 91177308-0d34-0410-b5e6-96231b3b80d8

Rename pass to DecomposeMultiDimRefs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1960 91177308-0d34-0410-b5e6-96231b3b80d8

Fix out-of-date name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1959 91177308-0d34-0410-b5e6-96231b3b80d8

Regression tests for DecomposeMultiDimRefs pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1958 91177308-0d34-0410-b5e6-96231b3b80d8

Rename Method to Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1957 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extranous forward decl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1956 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneccesary forward definitions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1955 91177308-0d34-0410-b5e6-96231b3b80d8

Add transition header file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1954 91177308-0d34-0410-b5e6-96231b3b80d8

Update documentation, rename Method to Function, move typedef to Value.h for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1953 91177308-0d34-0410-b5e6-96231b3b80d8

Change Method to Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1952 91177308-0d34-0410-b5e6-96231b3b80d8

Add transition typedef to Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1951 91177308-0d34-0410-b5e6-96231b3b80d8

New pass to convert Convert multi-dimensional
array references into 1-D references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1950 91177308-0d34-0410-b5e6-96231b3b80d8

Moved to Scalar/ directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1949 91177308-0d34-0410-b5e6-96231b3b80d8

New pass to decompose multi-dimensional array references into
a sequence of 1-D references, using a sequence of getElementPtrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1948 91177308-0d34-0410-b5e6-96231b3b80d8

Remove compilation of __main because we now link -lgcc into programs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1947 91177308-0d34-0410-b5e6-96231b3b80d8

Add an assertion that would hopefully catch a problem that was tripping
cameron up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1944 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug test/Regression/Transforms/LevelRaise/2002-03-21-MissedRaise3.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1943 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1942 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test/Regression/Transforms/LevelRaise/2002-03-21-MissedRaise2.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1941 91177308-0d34-0410-b5e6-96231b3b80d8