We need to make sure to remove PHI nodes in the successor that cannot be
executed when removing branch dest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101 91177308-0d34-0410-b5e6-96231b3b80d8

Added a note about a new verification the verifier should do
Removed a redundant check

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100 91177308-0d34-0410-b5e6-96231b3b80d8

Added new removePredecessor method prototype

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99 91177308-0d34-0410-b5e6-96231b3b80d8

Added note, moved note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed the obnoxious problem that caused an entire directory to rebuild
even if you only change one .cpp file. Yaay

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97 91177308-0d34-0410-b5e6-96231b3b80d8

Miscellaneous cleanups:
  * Convert post to pre-increment for for loops
  * Use generic programming more
  * Use new Value::cast* instructions
  * Use new Module, Method, & BasicBlock forwarding methods
  * Use new facilities in STLExtras.h
  * Use new Instruction::isPHINode() method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new Sparse Conditional Constant Propogation pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95 91177308-0d34-0410-b5e6-96231b3b80d8

Add command line arguments for Constant Pool Merging & Sparse Conditional Constant Prop

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94 91177308-0d34-0410-b5e6-96231b3b80d8

Put in test of SCCP.  Watch out though, because we need to sort the
constant pool for the final check to work.  :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93 91177308-0d34-0410-b5e6-96231b3b80d8

Change to use the new GenericBinaryInst class.  Support lots more operators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92 91177308-0d34-0410-b5e6-96231b3b80d8

Misc cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91 91177308-0d34-0410-b5e6-96231b3b80d8

* Expose DoConstantPoolMerging
* Cleanups (post->pre increment, new cleaner API, etc)
* Moved stuff into ConstantHandling.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90 91177308-0d34-0410-b5e6-96231b3b80d8

Convert ugly postincrement to efficient preincrement

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89 91177308-0d34-0410-b5e6-96231b3b80d8

* Move stuff around a bit.
* Add reduce_apply_bool

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88 91177308-0d34-0410-b5e6-96231b3b80d8

Add instructions to fold unary and binary instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87 91177308-0d34-0410-b5e6-96231b3b80d8

* Use the new reduce_apply_bool template
* Expose Constant Pool Merging from ConstantProp.cpp
* Include definitions for SCCP pass
* InstListType is not neccesary anymore

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86 91177308-0d34-0410-b5e6-96231b3b80d8

getBasicBlocks() is not needed anymore for reading Method data

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85 91177308-0d34-0410-b5e6-96231b3b80d8

Added methods to make dealing with switches and branch instructions
more tolerable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84 91177308-0d34-0410-b5e6-96231b3b80d8

Minor formating changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83 91177308-0d34-0410-b5e6-96231b3b80d8

Make a new GenericBinaryInst class, instead of providing lots of silly
little classes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82 91177308-0d34-0410-b5e6-96231b3b80d8

Convert postincrements to more efficient preincrements

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new slew of functions to allow dynamic_cast<> like operation for
upcasting Value's to their subclasses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80 91177308-0d34-0410-b5e6-96231b3b80d8

Add extra forwarding accessor methods so that getMethodList(), getBasicBlocks()
and getInstList() are obsolete... except for when modifying those lists.  This
makes code much more succinct and to the point.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79 91177308-0d34-0410-b5e6-96231b3b80d8

Add more notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78 91177308-0d34-0410-b5e6-96231b3b80d8

Filter out some more stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77 91177308-0d34-0410-b5e6-96231b3b80d8

Moved UnaryOperator::create to InstrTypes.cpp until there is an iUnaryOps.cpp
Moved BinaryOperator::create to iBinaryOperators.cpp
Add getUniqueName to SymbolTable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76 91177308-0d34-0410-b5e6-96231b3b80d8

Implement induction variable injection!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75 91177308-0d34-0410-b5e6-96231b3b80d8

Renamed get.*Operator to create seeing that it would have to be qualified
with the classname anyways.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74 91177308-0d34-0410-b5e6-96231b3b80d8

* Rename get.*Operator to create seeing that it would have to be qualified
  with the classname anyways.
* Add an isPHINode() method to Instruction
* Add getUniqueName() to SymbolTable class
* Add an insert method to ValueHolder

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73 91177308-0d34-0410-b5e6-96231b3b80d8

A silly stupid test of the loop depth calculator was added.  REMOVE in the
future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72 91177308-0d34-0410-b5e6-96231b3b80d8

IntervalPartition: recode to use IntervalIterator to do all the work

LoopDepth.cpp: new file that calculates the depth of a loop, using
IntervalPartitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71 91177308-0d34-0410-b5e6-96231b3b80d8

Add a helper function bind_obj

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70 91177308-0d34-0410-b5e6-96231b3b80d8

Big changes.  Interval*.h is now more or less finalized.  IntervalPartition
is recoded to use IntervalIterators.  IntervalIterators can now maintain
their own memory or let an external entity do it.

Loop depth is a new user of IntervalPartition for calculating the loop
nesting depth of a basic block

TODO: add IntervalPartition capability to split intervals between the looping
portion and the "tail" portion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69 91177308-0d34-0410-b5e6-96231b3b80d8

CFG.h: change the iterator tag
Method.h: Add an iterator type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68 91177308-0d34-0410-b5e6-96231b3b80d8

ValueHolder's aren't interseting to me anymore

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67 91177308-0d34-0410-b5e6-96231b3b80d8

New file due to the Intervals.h splitup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66 91177308-0d34-0410-b5e6-96231b3b80d8

New files due to the Intervals.h splitup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65 91177308-0d34-0410-b5e6-96231b3b80d8

Add a useless phi for testing with InductionVariables stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64 91177308-0d34-0410-b5e6-96231b3b80d8

#include a different header due to Intervals.h splitting up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63 91177308-0d34-0410-b5e6-96231b3b80d8

IntervalPartition & IntervalIterator classes have been split out into
their own .h files & .cpp file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62 91177308-0d34-0410-b5e6-96231b3b80d8

IntervalPartition & IntervalIterator classes have been split out into
their own .h files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61 91177308-0d34-0410-b5e6-96231b3b80d8

Prepare for split between Interval, IntervalIterator, and IntervalIPartition

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60 91177308-0d34-0410-b5e6-96231b3b80d8

Addition of IntervalIterator.  Preparing for rename of Intervals.h to
Interval.h, IntervalPartition.h, and IntervalIterator.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59 91177308-0d34-0410-b5e6-96231b3b80d8

Added notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58 91177308-0d34-0410-b5e6-96231b3b80d8

Implement a lot more functionality.  Now loop invariant and linear
induction variables are correctly identified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57 91177308-0d34-0410-b5e6-96231b3b80d8

Interval::HeaderNode is now accessed thorugh an accessor function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments
Interval::HeaderNode is now accessed thorugh an accessor function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55 91177308-0d34-0410-b5e6-96231b3b80d8

Add accessor methods to binary/unary operators
Add extra helper methods to PHI class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54 91177308-0d34-0410-b5e6-96231b3b80d8

Add a space to the PHI node output code to make it look nicer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53 91177308-0d34-0410-b5e6-96231b3b80d8

Moved printing code to the Assembly/Writer library.
Code now detects looping intervals

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the new Interval::isLoop method
Implement destructor to free memory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51 91177308-0d34-0410-b5e6-96231b3b80d8

New header file defined with neeto utilities put in one place

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50 91177308-0d34-0410-b5e6-96231b3b80d8

Modified to use the new reduce_apply algorithm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49 91177308-0d34-0410-b5e6-96231b3b80d8

* Added capability to print out an interval

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48 91177308-0d34-0410-b5e6-96231b3b80d8

* Added comments
* Added prototype for new Interval::isLoop method
* Added destructor to free memory
* Added IntervalPartition::isDegeneratePartition method
* Added IntervalPartition::size() method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case: an irreducible flow graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of a silly printout that isn't needed right now

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45 91177308-0d34-0410-b5e6-96231b3b80d8

Add note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44 91177308-0d34-0410-b5e6-96231b3b80d8

New test case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43 91177308-0d34-0410-b5e6-96231b3b80d8

Add capability to print a derived interval graph

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42 91177308-0d34-0410-b5e6-96231b3b80d8

Add capability to build a derived interval graph

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41 91177308-0d34-0410-b5e6-96231b3b80d8

Factor the predeclarations of the CFG.h functionality into a seperate, new header
file: CFGdecls.h

This allows the addition of BasicBlock::(pred|succ)_iterator typedefs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40 91177308-0d34-0410-b5e6-96231b3b80d8

Initial Checking of Interval handling code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39 91177308-0d34-0410-b5e6-96231b3b80d8

Add stub for induction variable code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38 91177308-0d34-0410-b5e6-96231b3b80d8

Add a more complex test case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for interval code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36 91177308-0d34-0410-b5e6-96231b3b80d8

Add an optimization stub

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35 91177308-0d34-0410-b5e6-96231b3b80d8

New file: Interval analysis support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33 91177308-0d34-0410-b5e6-96231b3b80d8

Filter out more stuff I don't want all the time

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32 91177308-0d34-0410-b5e6-96231b3b80d8

Removed silly test code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31 91177308-0d34-0410-b5e6-96231b3b80d8

Added options to print out basic blocks in a variety of different orderings
as a testcase for cfg iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30 91177308-0d34-0410-b5e6-96231b3b80d8

Updates to work with new cfg namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29 91177308-0d34-0410-b5e6-96231b3b80d8

Implement support for writing VCG format output

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28 91177308-0d34-0410-b5e6-96231b3b80d8

Move contents to the cfg namespace.
Implement post order and reverse post order iterators

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27 91177308-0d34-0410-b5e6-96231b3b80d8

Updates to support
* Changes in PHI node structure
* We now run DCE after inlining because it helps clean up LOTS of inlining
  gunk.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26 91177308-0d34-0410-b5e6-96231b3b80d8

Updates to support
* Changes in PHI node structure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25 91177308-0d34-0410-b5e6-96231b3b80d8

Updates to support
* Changes in PHI node structure
* Change to PHI syntax

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24 91177308-0d34-0410-b5e6-96231b3b80d8

Updates to support
* Changes in PHI node structure
* Fix to Predecessor iterator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23 91177308-0d34-0410-b5e6-96231b3b80d8

Update documentation to reflect:
* Changes in PHI node structure
* Intentions for load instruction to work with structures

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22 91177308-0d34-0410-b5e6-96231b3b80d8

Moved getBinaryOperator to the BinaryOperator class and the getUnaryOperator
to the UnaryOperator class (from the Instruction class).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21 91177308-0d34-0410-b5e6-96231b3b80d8

I actually got something done

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20 91177308-0d34-0410-b5e6-96231b3b80d8

Beautify the source a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19 91177308-0d34-0410-b5e6-96231b3b80d8

Include support for reverse iteration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18 91177308-0d34-0410-b5e6-96231b3b80d8

Added a stupid testcase for iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17 91177308-0d34-0410-b5e6-96231b3b80d8

Added reverse depth first capability, fixed depth first capability

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to work with new CFG.h file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15 91177308-0d34-0410-b5e6-96231b3b80d8

Moved iterators to the new CFG.h file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14 91177308-0d34-0410-b5e6-96231b3b80d8

New file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13 91177308-0d34-0410-b5e6-96231b3b80d8

inlining can change methods a second time, so don't rerun inliner when testing for
differences in optimizations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12 91177308-0d34-0410-b5e6-96231b3b80d8

Add extra method to PHI node class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11 91177308-0d34-0410-b5e6-96231b3b80d8

Significant rework.  DCE is still not done (see #ifdef'd out parts)
but at least the stuff that is checked in, now works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed to print slightly differently.  Added use counts for labels

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9 91177308-0d34-0410-b5e6-96231b3b80d8

Fixes for BB iterators, additional methods added for DCE pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8 91177308-0d34-0410-b5e6-96231b3b80d8

Extra comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7 91177308-0d34-0410-b5e6-96231b3b80d8

Now does not include instruction files...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6 91177308-0d34-0410-b5e6-96231b3b80d8

Initial revision

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2 91177308-0d34-0410-b5e6-96231b3b80d8

New repository initialized by cvs2svn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1 91177308-0d34-0410-b5e6-96231b3b80d8