[X86] Remove stale comment. NFC.

It turns out 256bit V[SZ]EXT nodes are still
generated by the new shuffle lowering, so this
is here to stay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231422 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ahmed Bougacha 2015-03-05 23:18:41 +00:00
parent a0c307d623
commit 30fdbe5948

View File

@ -5902,7 +5902,6 @@ multiclass SS41I_pmovx_avx2_patterns<string OpcPrefix, string ExtTy, SDNode ExtO
(!cast<I>(OpcPrefix#DQYrr) VR128:$src)>;
// On AVX2, we also support 256bit inputs.
// FIXME: remove these patterns when the old shuffle lowering goes away.
def : Pat<(v16i16 (ExtOp (v32i8 VR256:$src))),
(!cast<I>(OpcPrefix#BWYrr) (EXTRACT_SUBREG VR256:$src, sub_xmm))>;
def : Pat<(v8i32 (ExtOp (v32i8 VR256:$src))),