[PATCH] [ARM] Add CRC32 instructions and intrinsics for AArch32.

[Alex Rosenberg]

It would be great to comment this with which polynomial the hardware uses so nobody gets confused when they try to match it up with other ISAs that use a less common polynomial like crc32c.

Alex

On Sep 13, 2013, at 2:58 AM, Bradley Smith <bradley.smith at arm.com> wrote:

> Add CRC32 instruction/intrinsic support in ARM/Thumb backend for use in v8 architectures.
> 
> http://llvm-reviews.chandlerc.com/D1672
> 
> Files:
>  include/llvm/IR/IntrinsicsARM.td
>  lib/Target/ARM/ARMInstrInfo.td
>  lib/Target/ARM/ARMInstrThumb2.td
>  lib/Target/ARM/AsmParser/ARMAsmParser.cpp
>  test/MC/ARM/crc32-thumb.s
>  test/MC/ARM/crc32.s
>  test/MC/ARM/invalid-crc32.s
>  test/MC/Disassembler/ARM/crc32-thumb.txt
>  test/MC/Disassembler/ARM/crc32.txt
> <D1672.1.patch>
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