llvm-svn: 26966

64-bit vector shuffle.

llvm-svn: 26964

llvm-svn: 26959

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: 26950

llvm-svn: 26949

llvm-svn: 26944

_foo2:
        extsw r2, r3
        std r2, -8(r1)
        lfd f0, -8(r1)
        fcfid f0, f0
        frsp f1, f0
        blr

instead of this:

_foo2:
        lis r2, ha16(LCPI2_0)
        lis r4, 17200
        xoris r3, r3, 32768
        stw r3, -4(r1)
        stw r4, -8(r1)
        lfs f0, lo16(LCPI2_0)(r2)
        lfd f1, -8(r1)
        fsub f0, f1, f0
        frsp f1, f0
        blr

This speeds up Misc/pi from 2.44s->2.09s with LLC and from 3.01->2.18s
with llcbeta (16.7% and 38.1% respectively).

llvm-svn: 26943

which is shifted left two bits before use.  Instructions like STD use this
addressing mode.

llvm-svn: 26942

llvm-svn: 26941

llvm-svn: 26940

llvm-svn: 26939

llvm-svn: 26935

llvm-svn: 26933

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

llvm-svn: 26932

llvm-svn: 26930

llvm-svn: 26926

llvm-svn: 26924

       lwz r2, 8(0)
instead of this:
       lwz r2, 8(r0)

This fixes the llc/llc-beta failures on PPC last night.

llvm-svn: 26922

llvm-svn: 26921

llvm-svn: 26920

- Handle FR32 to VR128:v4f32 and FR64 to VR128:v2f64 with aliases of MOVAPS
and MOVAPD. Mark them as move instructions and *hope* they will be deleted.

llvm-svn: 26919

llvm-svn: 26917

llvm-svn: 26913

llvm-svn: 26912

llvm-svn: 26911

llvm-svn: 26910

disp field of the load/store if possible.  This compiles
CodeGen/PowerPC/load-constant-addr.ll to:

_test:
        lis r2, 2838
        lfs f1, 26848(r2)
        blr

instead of:

_test:
        lis r2, 2838
        ori r2, r2, 26848
        lfs f1, 0(r2)
        blr

llvm-svn: 26908

llvm-svn: 26907

figuring these out! :)

llvm-svn: 26904

llvm-svn: 26902

llvm-svn: 26901

llvm-svn: 26900

constant pool load.  This generates significantly nicer code for splats.

When tblgen gets bugfixed, we can remove the custom selection code.

llvm-svn: 26898

llvm-svn: 26897

llvm-svn: 26896

llvm-svn: 26895