[all-commits] [llvm/llvm-project] 80cc43: [AArch64] Set i32 ISD::MULHU/S to Expand instead o...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 80cc43b420a8ab8648f44fbb554b483a2998712d
      https://github.com/llvm/llvm-project/commit/80cc43b420a8ab8648f44fbb554b483a2998712d
  Author: Craig Topper <craig.topper at gmail.com>
  Date:   2020-05-26 (Tue, 26 May 2020)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

  Log Message:
  -----------
  [AArch64] Set i32 ISD::MULHU/S to Expand instead of Legal.

Looks like there are no isel patterns for these. A DAG combine
turns it into i64 multiply and a shift which hides this.

Extracted from D80485