[all-commits] [llvm/llvm-project] 8c6c56: [X86] Don't crash on instruction prefetch intrinsi...

[Craig Topper via All-commits]

  Branch: refs/heads/release/16.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 8c6c56dca37b6f4f50a7b1b0bc3e528e912aedc9
      https://github.com/llvm/llvm-project/commit/8c6c56dca37b6f4f50a7b1b0bc3e528e912aedc9
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2023-05-30 (Tue, 30 May 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/prefetchi.ll

  Log Message:
  -----------
  [X86] Don't crash on instruction prefetch intrinsics without PREFETCHI support.

Instead of failing to select during isel, drop the intrinsic in
lowering.

Fixes PR62839.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D151050

(cherry picked from commit 022aefa59c28323d961603abaa34caaffe273ee4)