[PATCH] [ARM64] Support crc predicate on ARM64.

Fri Apr 25 02:22:10 PDT 2014

Hi t.p.northover,

According to the specification, CRC is an optional extension of the architecture. This patch is to add predicate to make crc checksum instructions optional.

http://reviews.llvm.org/D3502

Files:
  lib/Target/ARM64/ARM64.td
  lib/Target/ARM64/ARM64InstrFormats.td
  lib/Target/ARM64/ARM64InstrInfo.td
  lib/Target/ARM64/ARM64Subtarget.cpp
  lib/Target/ARM64/ARM64Subtarget.h
  test/CodeGen/ARM64/crc32.ll
  test/MC/ARM64/basic-a64-instructions.s
  test/MC/ARM64/diagno-predicate.s
  test/MC/Disassembler/ARM64/crc32.txt
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