[PATCH] D136690: [AArch64][SVE2] Add the SVE2.1 shift-and-narrow instructions

[David Sherwood via Phabricator via llvm-commits]

david-arm created this revision.
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Herald added subscribers: hiraditya, kristof.beyls, tschuett.
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This patch adds the assembly/disassembly for the following instructions:

sqrshrn  : Signed saturating rounding shift right narrow by immediate and interleave
sqrshrun : Signed saturating rounding shift right unsigned narrow by immediate and interleave
uqrshrn  : Unsigned saturating rounding shift right narrow by immediate and interleave

The reference can be found here:
https://developer.arm.com/documentation/ddi0602/2022-09


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D136690

Files:
  llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
  llvm/lib/Target/AArch64/SVEInstrFormats.td
  llvm/test/MC/AArch64/SVE2p1/sqrshrn-diagnostics.s
  llvm/test/MC/AArch64/SVE2p1/sqrshrn.s
  llvm/test/MC/AArch64/SVE2p1/sqrshrun-diagnostics.s
  llvm/test/MC/AArch64/SVE2p1/sqrshrun.s
  llvm/test/MC/AArch64/SVE2p1/uqrshrn-diagnostics.s
  llvm/test/MC/AArch64/SVE2p1/uqrshrn.s

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