predicates to VCMPo nodes.

llvm-svn: 27285

llvm-svn: 27284

llvm-svn: 27282

decimated vectors.  This fixes UnitTests/Vector/sumarray-dbl.c

llvm-svn: 27280

handling cases where the vector elements need promotion, expansion, and when
the vector type itself needs to be decimated.

llvm-svn: 27278

llvm-svn: 27277

llvm-svn: 27276

llvm-svn: 27275

llvm-svn: 27274

unpromoted element type.

llvm-svn: 27273

llvm-svn: 27272

llvm-svn: 27271

llvm-svn: 27270

llvm-svn: 27268

directly correspond to intrinsics.

llvm-svn: 27266

llvm-svn: 27265

llvm-svn: 27261

Use pshufd, pshuhw, and pshulw to shuffle v4f32 if shufps doesn't match.
Use shufps to shuffle v4f32 if pshufd, pshuhw, and pshulw don't match.

llvm-svn: 27259

llvm-svn: 27257

llvm-svn: 27256

llvm-svn: 27255

For example, packsswb actually creates a v16i8 from a pair of v8i16. But since
the intrinsic specification forces the output type to match the operands.

llvm-svn: 27254

- Added SSE2 128-bit integer pack with signed saturation ops.
- Added pshufhw and pshuflw ops.

llvm-svn: 27252

vector_shuffle undef.

llvm-svn: 27250

integer vector logical operations would match andp{s|d} instead of pand.

llvm-svn: 27248

- Whenever possible use ops of the right packed types for vector shuffles /
  splats.

llvm-svn: 27246

llvm-svn: 27245

- Other shuffle related fixes.

llvm-svn: 27244

llvm-svn: 27243

Handle constantpacked vectors with constantexpr elements.

This fixes CodeGen/Generic/vector-constantexpr.ll

llvm-svn: 27241

The source operands type are v4sf with upper bits passes through.
Added matching code for these.

llvm-svn: 27240

llvm-svn: 27239

sure to build it as SHUFFLE(X, undef, mask), not SHUFFLE(X, X, mask).

The later is not canonical form, and prevents the PPC splat pattern from
matching.  For a particular splat, we go from generating this:

	li r10, lo16(LCPI1_0)
	lis r11, ha16(LCPI1_0)
	lvx v3, r11, r10
	vperm v3, v2, v2, v3

to generating:

	vspltw v3, v2, 3

llvm-svn: 27236

llvm-svn: 27235

vector_shuffle node.  For this:

void test(__m128 *res, __m128 *A, __m128 *B) {
  *res = _mm_unpacklo_ps(*A, *B);
}

we now produce this code:

_test:
        movl 8(%esp), %eax
        movaps (%eax), %xmm0
        movl 12(%esp), %eax
        unpcklps (%eax), %xmm0
        movl 4(%esp), %eax
        movaps %xmm0, (%eax)
        ret

instead of this:

_test:
        subl $76, %esp
        movl 88(%esp), %eax
        movaps (%eax), %xmm0
        movaps %xmm0, (%esp)
        movaps %xmm0, 32(%esp)
        movss 4(%esp), %xmm0
        movss 32(%esp), %xmm1
        unpcklps %xmm0, %xmm1
        movl 84(%esp), %eax
        movaps (%eax), %xmm0
        movaps %xmm0, 16(%esp)
        movaps %xmm0, 48(%esp)
        movss 20(%esp), %xmm0
        movss 48(%esp), %xmm2
        unpcklps %xmm0, %xmm2
        unpcklps %xmm1, %xmm2
        movl 80(%esp), %eax
        movaps %xmm2, (%eax)
        addl $76, %esp
        ret

GCC produces this (with -fomit-frame-pointer):

_test:
        subl    $12, %esp
        movl    20(%esp), %eax
        movaps  (%eax), %xmm0
        movl    24(%esp), %eax
        unpcklps        (%eax), %xmm0
        movl    16(%esp), %eax
        movaps  %xmm0, (%eax)
        addl    $12, %esp
        ret

llvm-svn: 27233

llvm-svn: 27232

llvm-svn: 27231

llvm-svn: 27229

llvm-svn: 27228

llvm-svn: 27227