[all-commits] [llvm/llvm-project] ecb270: Revert "[AArch64] Alter mull shuffle(ext(..)) comb...

[Reid Kleckner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ecb27004ecbc97f8f075e81cabf95adbc84062e2
      https://github.com/llvm/llvm-project/commit/ecb27004ecbc97f8f075e81cabf95adbc84062e2
  Author: Reid Kleckner <rnk at google.com>
  Date:   2022-02-22 (Tue, 22 Feb 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/aarch64-dup-ext.ll
    M llvm/test/CodeGen/AArch64/aarch64-matrix-umull-smull.ll

  Log Message:
  -----------
  Revert "[AArch64] Alter mull shuffle(ext(..)) combine to work on buildvectors"

This reverts commit 9fc1a0dcb79afb31470751651c30e843c12e9ca5.

We have bisected a compiler crash to this revision and will provide a
test case soon.