llvm-svn: 16400

the worklist and makes it more efficient.  This does not change functionality
at all.

llvm-svn: 16390

llvm-svn: 16384

Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137

- Excise dead CPR procesing.

llvm-svn: 14944

of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.

llvm-svn: 14276

we make the transformation.  This allows us to use interprocedural alias
analyses successfully.

llvm-svn: 13691

This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference.  This can
enable a LOT of subsequent optimizations in the caller function.

It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference.  When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.

This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well.  For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times.  this is amazingly good considering that
we are using 'basicaa' so far.

llvm-svn: 12202

llvm-svn: 12200

llvm-svn: 12198

llvm-svn: 12195

variables.

llvm-svn: 12193