[PATCH] D21953: [X86][AVX512] Add support for masked shuffle comments

[Simon Pilgrim via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: delena, igorb, craig.topper, spatel.
RKSimon added a subscriber: llvm-commits.
RKSimon set the repository for this revision to rL LLVM.

This patch adds support for including the avx512 mask register information in the mask/maskz versions of shuffle instruction comments. 

This initial version just adds support for MOVDDUP/MOVSHDUP/MOVSLDUP to reduce the mass of test regenerations, other shuffle instructions can be added in due course.

Repository:
  rL LLVM

http://reviews.llvm.org/D21953

Files:
  lib/Target/X86/InstPrinter/X86InstComments.cpp
  test/CodeGen/X86/avx512-intrinsics-fast-isel.ll
  test/CodeGen/X86/avx512-intrinsics-upgrade.ll
  test/CodeGen/X86/avx512vl-intrinsics-fast-isel.ll
  test/CodeGen/X86/avx512vl-intrinsics-upgrade.ll
  test/CodeGen/X86/vector-shuffle-combining-avx512bw.ll
  utils/update_llc_test_checks.py
  utils/update_test_checks.py

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