now cerr, cout, and NullStream resp.

llvm-svn: 32298

The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931

llvm-svn: 31923

This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063

llvm-svn: 29925

llvm-svn: 25406

llvm-svn: 25180

llvm-svn: 25021

llvm-svn: 21427

Morten Ofstad.

llvm-svn: 17996

llvm-svn: 17956

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

This also registers the pass with opt with a -lower-packed command line
option.

Patch contributed by Brad Jones.

llvm-svn: 15987