[all-commits] [llvm/llvm-project] 55172b: [GlobalISel] Improve combines for extend operation...

[Dávid Ferenc Szabó via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 55172b7005a6f972272f6d79f2b0d15063bc1b1c
      https://github.com/llvm/llvm-project/commit/55172b7005a6f972272f6d79f2b0d15063bc1b1c
  Author: Dávid Ferenc Szabó <30732159+dfszabo at users.noreply.github.com>
  Date:   2024-01-17 (Wed, 17 Jan 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/combine-ext.mir

  Log Message:
  -----------
  [GlobalISel] Improve combines for extend operation by taking hint ins… (#74125)

…tructions into account

Hint instructions like G_ASSERT_ZEXT cann be viewed as a copy. Including
this fact into the combiner allows the match more patterns involving
such instructions.