llvm-project

88bb0e6d - [AArch64] Use EXT for byte shuffles with leading zeros (#193466)

[AArch64] Use EXT for byte shuffles with leading zeros (#193466) Fixes: https://github.com/llvm/llvm-project/issues/191735 Teach AArch64 LowerVECTOR_SHUFFLE to recognize byte shuffles that are a zero fill right shift and lower them to EXT with a zero vector. Adds a regression test too. Change-Id: Iffe97ff7e35cfaff790f537b4f1f5ba9aded4f92