[PATCH] D17838: [Power9] Implement new altivec instructions: bcd* series

[Chuang-Yu Cheng via llvm-commits]

cycheng created this revision.
cycheng added reviewers: nemanjai, kbarton, tjablin, hfinkel, amehsan.
cycheng added a subscriber: llvm-commits.

This patch implements the following altivec instructions:
  - Decimal Convert From/to National/Zoned/Signed-QWord
    bcdcfn. bcdcfz. bcdctn. bcdctz. bcdcfsq. bcdctsq.
  - Decimal Copy-Sign/Set-Sign:
    bcdcpsgn. bcdsetsgn.
  - Decimal Shift/Unsigned-Shift/Shift-and-Round:
    bcds. bcdus. bcdsr.
  - Decimal (Unsigned) Truncate:
    bcdtrunc. bcdutrunc.

Total 13 instructions

http://reviews.llvm.org/D17838

Files:
  lib/Target/PowerPC/PPCInstrAltivec.td
  lib/Target/PowerPC/PPCInstrFormats.td
  lib/Target/PowerPC/README_P9.txt
  test/MC/Disassembler/PowerPC/ppc64-encoding-vmx.txt
  test/MC/PowerPC/ppc64-encoding-vmx.s

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