intrinsics as such.

llvm-svn: 27200

llvm-svn: 27167

manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary
search tree of basic blocks.  The new approach has several advantages:
it is faster, it generates significantly smaller code in many cases, and
it paves the way for implementing dense switch tables as a jump table by
handling switches directly in the instruction selector.

This functionality is currently only enabled on x86, but should be safe for
every target.  In anticipation of making it the default, the cfg is now
properly updated in the x86, ppc, and sparc select lowering code.

llvm-svn: 27156

llvm-svn: 27150

series of unpack and interleave ops.

llvm-svn: 27119

llvm-svn: 27096

llvm-svn: 27091

llvm-svn: 27056

llvm-svn: 27049

llvm-svn: 27044

llvm-svn: 27040

llvm-svn: 27024

llvm-svn: 26997

llvm-svn: 26967

64-bit vector shuffle.

llvm-svn: 26964

llvm-svn: 26957

- Don't forget pshufd is only available with sse2.

llvm-svn: 26956

  splat and PSHUFD cases.
- Clean up shuffle / splat matching code.

llvm-svn: 26954

  PSHUFD. We can make permutes entries which point to the undef pointing
  anything we want.
- Change some names to appease Chris.

llvm-svn: 26951

llvm-svn: 26941

llvm-svn: 26940

- Each scalar to vector v8i16 and v16i8 is a any_extend followed by a movd.

llvm-svn: 26932

llvm-svn: 26930

llvm-svn: 26895

llvm-svn: 26848

llvm-svn: 26833

llvm-svn: 26824

llvm-svn: 26818

Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814

llvm-svn: 26804

scale component of the target addressing mode.

llvm-svn: 26802

llvm-svn: 26740

and variable value.
Similarly for memcpy.

llvm-svn: 26603

llvm-svn: 26581

implement copysign as a native op if they have it.

llvm-svn: 26541

rep/stos and rep/mov if the count is not a constant. We could do
  rep/stosl; and $count, 3; rep/stosb
For now, I will lower them to memset / memcpy calls. We will revisit this after
a little bit experiment.

Also need to take care of the trailing bytes even if the count is a constant.
Since the max. number of trailing bytes are 3, we will simply issue loads /
stores.

llvm-svn: 26517

llvm-svn: 26512

llvm-svn: 26479

llvm-svn: 26438

llvm-svn: 26372