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19c6a7feca
As explained in https://github.com/ARM-software/acle/pull/315 we are deprecating features which aren't adding any value. These are: sha1, pmull, dit, dgh, ebf16, sve-bf16, sve-ebf16, sve-i8mm, sve2-pmull128, memtag2, memtag3, ssbs2, bti, ls64_v, ls64_accdata
138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
//===-- cpu_model/aarch64.c - Support for __cpu_model builtin ----*- C -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is based on LLVM's lib/Support/Host.cpp.
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// It implements __aarch64_have_lse_atomics, __aarch64_cpu_features for
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// AArch64.
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//
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//===----------------------------------------------------------------------===//
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#include "cpu_model.h"
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#if !defined(__aarch64__)
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#error This file is intended only for aarch64-based targets
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#endif
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#if __has_include(<sys/ifunc.h>)
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#include <sys/ifunc.h>
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#else
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typedef struct __ifunc_arg_t {
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unsigned long _size;
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unsigned long _hwcap;
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unsigned long _hwcap2;
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} __ifunc_arg_t;
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#endif // __has_include(<sys/ifunc.h>)
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// LSE support detection for out-of-line atomics
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// using HWCAP and Auxiliary vector
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_Bool __aarch64_have_lse_atomics
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__attribute__((visibility("hidden"), nocommon)) = false;
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#if defined(__FreeBSD__)
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// clang-format off: should not reorder sys/auxv.h alphabetically
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#include <sys/auxv.h>
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// clang-format on
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#include "aarch64/hwcap.inc"
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#include "aarch64/lse_atomics/freebsd.inc"
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#elif defined(__Fuchsia__)
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#include "aarch64/hwcap.inc"
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#include "aarch64/lse_atomics/fuchsia.inc"
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#elif defined(__ANDROID__)
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#include "aarch64/hwcap.inc"
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#include "aarch64/lse_atomics/android.inc"
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#elif __has_include(<sys/auxv.h>)
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#include "aarch64/hwcap.inc"
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#include "aarch64/lse_atomics/sysauxv.inc"
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#else
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// When unimplemented, we leave __aarch64_have_lse_atomics initialized to false.
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#endif
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#if !defined(DISABLE_AARCH64_FMV)
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// CPUFeatures must correspond to the same AArch64 features in
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// AArch64TargetParser.h
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enum CPUFeatures {
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FEAT_RNG,
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FEAT_FLAGM,
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FEAT_FLAGM2,
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FEAT_FP16FML,
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FEAT_DOTPROD,
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FEAT_SM4,
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FEAT_RDM,
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FEAT_LSE,
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FEAT_FP,
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FEAT_SIMD,
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FEAT_CRC,
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FEAT_SHA2,
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FEAT_SHA3,
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FEAT_AES,
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FEAT_FP16,
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FEAT_DPB,
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FEAT_DPB2,
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FEAT_JSCVT,
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FEAT_FCMA,
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FEAT_RCPC,
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FEAT_RCPC2,
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FEAT_FRINTTS,
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FEAT_I8MM,
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FEAT_BF16,
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FEAT_RPRES,
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FEAT_SVE,
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FEAT_SVE_F32MM,
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FEAT_SVE_F64MM,
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FEAT_SVE2,
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FEAT_SVE_AES,
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FEAT_SVE_BITPERM,
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FEAT_SVE_SHA3,
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FEAT_SVE_SM4,
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FEAT_SME,
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FEAT_MEMTAG,
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FEAT_SB,
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FEAT_PREDRES,
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FEAT_SSBS,
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FEAT_LS64,
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FEAT_WFXT,
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FEAT_SME_F64,
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FEAT_SME_I64,
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FEAT_SME2,
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FEAT_RCPC3,
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FEAT_MOPS,
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FEAT_MAX,
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FEAT_EXT = 47, // Reserved to indicate presence of additional features field
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// in __aarch64_cpu_features
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FEAT_INIT // Used as flag of features initialization completion
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};
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// Architecture features used
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// in Function Multi Versioning
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struct {
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unsigned long long features;
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// As features grows new fields could be added
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} __aarch64_cpu_features __attribute__((visibility("hidden"), nocommon));
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// The formatter wants to re-order these includes, but doing so is incorrect:
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// clang-format off
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#if defined(__APPLE__)
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#include "aarch64/fmv/apple.inc"
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#elif defined(__FreeBSD__)
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#include "aarch64/fmv/mrs.inc"
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#include "aarch64/fmv/freebsd.inc"
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#elif defined(__Fuchsia__)
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#include "aarch64/fmv/fuchsia.inc"
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#elif defined(__ANDROID__)
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#include "aarch64/fmv/mrs.inc"
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#include "aarch64/fmv/android.inc"
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#elif __has_include(<sys/auxv.h>)
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#include "aarch64/fmv/mrs.inc"
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#include "aarch64/fmv/sysauxv.inc"
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#else
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#include "aarch64/fmv/unimplemented.inc"
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#endif
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// clang-format on
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#endif // !defined(DISABLE_AARCH64_FMV)
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