DSGraph at one time

llvm-svn: 6994

llvm-svn: 6993

arguments or not...

llvm-svn: 6987

llvm-svn: 6986

llvm-svn: 6985

DSGraph/2003-06-29-NodeCollapsing2.ll & DSGraph/PhysicalSubtyping.ll

llvm-svn: 6982

llvm-svn: 6981

llvm-svn: 6979

llvm-svn: 6973

expose it directly as value numbering information

llvm-svn: 6972

Count operands to instructions as well as just results.  This allows for global variables to be checked as well

llvm-svn: 6970

fixes bug: DSGraph/buglobals.ll

llvm-svn: 6947

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

llvm-svn: 6946

llvm-svn: 6945

globals into constants if we can prove it's safe

llvm-svn: 6941

llvm-svn: 6903

llvm-svn: 6840

* 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.

llvm-svn: 6794

BasicAA/featuretest.ll:constexpr_test

llvm-svn: 6740

llvm-svn: 6738

llvm-svn: 6696

Remove bogus assertion: a node with no referrers could be collapsed if field-sensitivity was disabled

llvm-svn: 6695

This implements: GCSE/2003-06-13-LoadStoreEliminate.ll

llvm-svn: 6694

Fixes bug: BasicAA/2003-06-01-AliasCrash.ll

llvm-svn: 6538

llvm-svn: 6495

llvm-svn: 6397

and related functions and flags.  Fixed several bugs where only
"isDef" was being checked, not "isDefAndUse".

llvm-svn: 6342

llvm-svn: 6270

llvm-svn: 6250

llvm-svn: 6249

llvm-svn: 6248

llvm-svn: 6230

llvm-svn: 5994

llvm-svn: 5959

llvm-svn: 5940

llvm-svn: 5871

llvm-svn: 5858

llvm-svn: 5795

llvm-svn: 5710

llvm-svn: 5695