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[X86] Support Intel avxvnni

Authored by LiuChen3 on Oct 29 2020, 9:58 PM.

Description

[X86] Support Intel avxvnni
This patch mainly made the following changes:

  1. Support AVX-VNNI instructions;
  2. Introduce ExplicitVEXPrefix flag so that vpdpbusd/vpdpbusds/vpdpbusds/vpdpbusds instructions only use vex-encoding when user explicity add {vex} prefix.

Differential Revision: https://reviews.llvm.org/D89105

Details

Committed
LiuChen3Oct 30 2020, 9:39 PM
Differential Revision
D89105: [X86] Support Intel avxvnni
Parents
rGd11710dae6c1: [NFC][CMake] Move some COMPILER_RT variables setup
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