This is the initial checkin of the basic-block autovectorization pass along with some supporting vectorization infrastructure.
Special thanks to everyone who helped review this code over the last several months (especially Tobias Grosser).

llvm-svn: 149468

llvm-svn: 101387

variable TARGET_HAS_DYNAMIC_LIBS

llvm-svn: 100896

llvm-svn: 100895

llvm-svn: 92459

try to use i686-darwin to build for arm-eabi, you'll quickly run into
several false assumptions that the target OS must be the same as the
host OS. These patches split $(OS) into $(HOST_OS) and $(TARGET_OS) to
help builds like "make check" and the test-suite able to cross
compile. Along the way a target of *-unknown-eabi is defined as
"Freestanding" so that TARGET_OS checks have something to work with.

Patch by Sandeep Patel!

llvm-svn: 79296

llvm-svn: 66699

llvm-svn: 66692

This fixes fallout from recent PIC/delibtoolize changes and unbreaks
build on cygming.

llvm-svn: 66686

llvm-svn: 61991

llvm-svn: 45415

llvm-svn: 35922

Removing -raise has neglible positive or negative side effects so we are
opting to remove it. See the PR for comparison details.

llvm-svn: 33844

llvm-svn: 23940

This should speed up build times.

llvm-svn: 23933

llvm-svn: 17286

llvm-svn: 9312

llvm-svn: 3972

llvm-svn: 3002

llvm-svn: 2514

llvm-svn: 1403

llvm-svn: 1381

llvm-svn: 819

llvm-svn: 788

llvm-svn: 2