Benjamin Kramer bb81d9d5fa SDAG: Legalize vector BSWAP into a shuffle if the shuffle is legal but the bswap not. ...

- On ARM/ARM64 we get a vrev because the shuffle matching code is really smart. We still unroll anything that's not v4i32 though.
- On X86 we get a pshufb with SSSE3. Required more cleverness in isShuffleMaskLegal.
- On PPC we get a vperm for v8i16 and v4i32. v2i64 is unrolled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209123 91177308-0d34-0410-b5e6-96231b3b80d8

2014-05-19 13:12:38 +00:00

31 KiB

Raw Blame History

View Raw