[all-commits] [llvm/llvm-project] 925648: [Clang][LLVM][AArch64]Add new feature SSVE-BitPerm...

[CarolineConcatto via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9256485043fe5cc3a24dba649deef8ae69e6d702
      https://github.com/llvm/llvm-project/commit/9256485043fe5cc3a24dba649deef8ae69e6d702
  Author: CarolineConcatto <caroline.concatto at arm.com>
  Date:   2025-01-13 (Mon, 13 Jan 2025)

  Changed paths:
    M clang/include/clang/Basic/arm_sve.td
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Basic/Targets/AArch64.h
    M clang/test/CodeGen/AArch64/fmv-dependencies.c
    M clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_bdep.c
    M clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_bext.c
    M clang/test/CodeGen/AArch64/sve2-intrinsics/acle_sve2_bgrp.c
    M clang/test/CodeGen/AArch64/targetattr.c
    M clang/test/Driver/aarch64-implied-sme-features.c
    M clang/test/Driver/aarch64-implied-sve-features.c
    M clang/test/Driver/print-supported-extensions-aarch64.c
    M clang/test/Preprocessor/aarch64-target-features.c
    M clang/test/Sema/aarch64-sve2-intrinsics/acle_sve2_aes_bitperm_sha3_sm4.cpp
    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/AArch64Processors.td
    M llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
    M llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
    M llvm/lib/TargetParser/AArch64TargetParser.cpp
    M llvm/test/MC/AArch64/SVE2/bdep-diagnostics.s
    M llvm/test/MC/AArch64/SVE2/bdep.s
    M llvm/test/MC/AArch64/SVE2/bext.s
    M llvm/test/MC/AArch64/SVE2/bgrp.s
    M llvm/test/MC/AArch64/SVE2/directive-arch-negative.s
    M llvm/test/MC/AArch64/SVE2/directive-arch.s
    M llvm/test/MC/AArch64/SVE2/directive-arch_extension-negative.s
    M llvm/test/MC/AArch64/SVE2/directive-arch_extension.s
    M llvm/test/MC/AArch64/SVE2/directive-cpu-negative.s
    M llvm/test/MC/AArch64/SVE2/directive-cpu.s
    M llvm/unittests/TargetParser/TargetParserTest.cpp

  Log Message:
  -----------
  [Clang][LLVM][AArch64]Add new feature SSVE-BitPerm (#121947)

The 20204-12 ISA update release adds a new feature: FEAT_SSVE_BitPerm,
which allows the sve-bitperm instructions to run in streaming mode.

It also removes the requirement of FEAT_SVE2 for FEAT_SVE_BitPerm. The
sve2-bitperm feature is now an alias for sve-bitperm and sve2.

A new feature flag sve-bitperm is added to reflect the change that the
instructions under FEAT_SVE_BitPerm are supported if:
 on non streaming mode with FEAT_SVE2 and FEAT_SVE_BitPerm or
 in streaming mode with FEAT_SME and FEAT_SSVE_BitPerm



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