[all-commits] [llvm/llvm-project] cab4c6: [AArch64][llvm] Armv9.7-A: Add support for SVE2p3 ...

[Jonathan Thackray via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cab4c68a669df7856c9b0babf05709e10f89c7e2
      https://github.com/llvm/llvm-project/commit/cab4c68a669df7856c9b0babf05709e10f89c7e2
  Author: Jonathan Thackray <jonathan.thackray at arm.com>
  Date:   2025-10-23 (Thu, 23 Oct 2025)

  Changed paths:
    M clang/test/Driver/aarch64-v97a.c
    M clang/test/Driver/print-supported-extensions-aarch64.c
    M llvm/lib/Target/AArch64/AArch64.td
    M llvm/lib/Target/AArch64/AArch64Features.td
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
    M llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
    M llvm/lib/Target/AArch64/SVEInstrFormats.td
    A llvm/test/MC/AArch64/SVE2p3/arithmetic-diagnostics.s
    A llvm/test/MC/AArch64/SVE2p3/arithmetic.s
    A llvm/test/MC/AArch64/SVE2p3/directive-arch-negative.s
    A llvm/test/MC/AArch64/SVE2p3/directive-arch_extension-negative.s
    A llvm/test/MC/AArch64/SVE2p3/directive-cpu-negative.s
    M llvm/unittests/TargetParser/TargetParserTest.cpp

  Log Message:
  -----------
  [AArch64][llvm] Armv9.7-A: Add support for SVE2p3 arithmetic operations (#163160)

Add instructions for SVE2p3 arithmetic operations:

  - `ADDQP`    (add pairwise within quadword vector segments)
  - `ADDSUBP`  (add subtract pairwise)
  - `SABAL`    (two-way signed absolute difference sum and accumulate long)
  - `SUBP`     (subtract pairwise)
  - `UABAL`    (two-way unsigned absolute difference sum and accumulate long)

as documented here:

  * https://developer.arm.com/documentation/ddi0602/2025-09/
  * https://developer.arm.com/documentation/109697/2025_09/2025-Architecture-Extensions



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