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[llvm][CodeGen] IR intrinsics for SVE2 contiguous conflict detection…

Authored by fpetrogalli on Mar 11 2020, 11:25 AM.

Description

[llvm][CodeGen] IR intrinsics for SVE2 contiguous conflict detection instructions.

Summary:
The IR intrinsics are mapped to the following SVE2 instructions:

  • WHILERW <Pd>.<T>, <Xn>, <Xm>
  • WHILEWR <Pd>.<T>, <Xn>, <Xm>

The intrinsics introduced in this patch are the IR counterpart of the
SVE ACLE functions svwhilerw and svwhilewr (all data type
variants).

Patch by Maciej Gąbka <maciej.gabka@arm.com>.

Reviewers: kmclaughlin, rengolin

Reviewed By: kmclaughlin

Subscribers: tschuett, kristof.beyls, hiraditya, danielkiss, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75862

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