llvm-svn: 143406

Patch by Kostya Serebryany.

llvm-svn: 143405

llvm-svn: 143404

Also revert the change to CREATE_SUBDIRS as this is what caused the CSS to break on the website and generate the much longer URLs.

llvm-svn: 143401

llvm-svn: 143400

llvm-svn: 143369

Update 'Getting Started' to suggest using GCC 4.2 or higher (or Clang).  There is no reason to support older versions of GCC.

llvm-svn: 143366

llvm-svn: 143365

Cleanup. Document. Make sure that this build_vector optimization only runs before the op legalizer and that the used type is legal.

llvm-svn: 143358

The _fixed variants have a writeback operand, but not a stride operand.
Split the conditional flag to distinguish the cases.

llvm-svn: 143356

llvm-svn: 143352

llvm-svn: 143351

llvm-svn: 143349

llvm-svn: 143348

llvm-svn: 143336

llvm-svn: 143332

llvm-svn: 143331

llvm-svn: 143328

-enable-dwarf-directory.

llvm-svn: 143326

llvm-svn: 143319

with the given predicate, it matches any condition and returns the
predicate - d'oh!  Original commit message:
The expression icmp eq (select (icmp eq x, 0), 1, x), 0 folds to false.
Spotted by my super-optimizer in 186.crafty and 450.soplex.  We really
need a proper infrastructure for handling generalizations of this kind
of thing (which occur a lot), however this case is so simple that I decided
to go ahead and implement it directly.

llvm-svn: 143318

llvm-svn: 143317

llvm-svn: 143316

X86: Emit logical shift by constant splat of <16 x i8> as a <8 x i16> shift and zero out the bits where zeros should've been shifted in.

llvm-svn: 143315

Fix return type for X86 mpsadbw instrinsic. The instruction takes in a vector of 8-bit integers, but produces a vector of 16-bit integers.

llvm-svn: 143313

Fix pr11266.

On x86: (shl V, 1) -> add V,V

Hardware support for vector-shift is sparse and in many cases we scalarize the
result. Additionally, on sandybridge padd is faster than shl.

llvm-svn: 143311

llvm-svn: 143308

llvm-svn: 143307

llvm-svn: 143306

Do a relative path ln command instead of an absolute path one. Some people strangely enough have different directory layouts...

llvm-svn: 143302

llvm-svn: 143300

If all of the inputs are zero/any_extended, create a new simple BV
which can be further optimized by other BV optimizations.

llvm-svn: 143297

llvm-svn: 143291

Should fix assertion failures on ppc buildbots.

llvm-svn: 143290

SimplifyLibCalls: Use IRBuilder.CreateGlobalString when creating a string for printf->puts, which correctly sets the unnamed_addr bit on the resulting GlobalVariable.

Fixes PR11264.

llvm-svn: 143289

llvm-svn: 143277

llvm-svn: 143268

llvm-svn: 143267

llvm-svn: 143265

llvm-svn: 143262