needs to be promoted or expanded.  Relegalize the scalar store once created.
This fixes CodeGen/Generic/vector.ll:test1 on non-SSE x86 targets.

llvm-svn: 27293

llvm-svn: 27292

llvm-svn: 27291

identical instructions into a single instruction.  For example, for:

void test(vector float *x, vector float *y, int *P) {
  int v = vec_any_out(*x, *y);
  *x = (vector float)vec_cmpb(*x, *y);
  *P = v;
}

we now generate:

_test:
        mfspr r2, 256
        oris r6, r2, 49152
        mtspr 256, r6
        lvx v0, 0, r4
        lvx v1, 0, r3
        vcmpbfp. v0, v1, v0
        mfcr r4, 2
        stvx v0, 0, r3
        rlwinm r3, r4, 27, 31, 31
        xori r3, r3, 1
        stw r3, 0(r5)
        mtspr 256, r2
        blr

instead of:

_test:
        mfspr r2, 256
        oris r6, r2, 57344
        mtspr 256, r6
        lvx v0, 0, r4
        lvx v1, 0, r3
        vcmpbfp. v2, v1, v0
        mfcr r4, 2
***     vcmpbfp v0, v1, v0
        rlwinm r4, r4, 27, 31, 31
        stvx v0, 0, r3
        xori r3, r4, 1
        stw r3, 0(r5)
        mtspr 256, r2
        blr

Testcase here: CodeGen/PowerPC/vcmp-fold.ll

llvm-svn: 27290

llvm-svn: 27289

llvm-svn: 27288

llvm-svn: 27287

llvm-svn: 27286

predicates to VCMPo nodes.

llvm-svn: 27285

llvm-svn: 27284

validate the prototype of intrinsic functions.  This prevents GCC from going
crazy and inlining too much stuff, eventually running out of memory.

llvm-svn: 27283

llvm-svn: 27282

independently, batch up checks so that identically typed intrinsics share
verifier code.  This dramatically reduces the size of the verifier function,
which should help avoid GCC running out of memory compiling Verifier.cpp.

llvm-svn: 27281

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: 27269

llvm-svn: 27268

llvm-svn: 27267

directly correspond to intrinsics.

llvm-svn: 27266

llvm-svn: 27265

llvm-svn: 27264

llvm-svn: 27263

llvm-svn: 27262

llvm-svn: 27261

llvm-svn: 27260

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: 27258

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

llvm-svn: 27253