Similar to D131064, this alters most of the intrinsics in arm_neon.h to be target based, not preprocessor based. The intrinsics that are changed are the ones with obvious target features (fp16, fp16fml, cryptos, i8mm and bf16). The ones that are not yet altered are the ones without target features like rdma (8.1) and complex (8.3). Those will be switched in a followup patch that allows targeting architecture versions. The existing ArchGuard in arm_neon.td is split into ArchGuard that still adds ifdef defines (for example for intrinsics that require __aarch64__), and TargetGuards for intrinsics dependant on target features. From there the TargetGuards are used in two ways: - For intrinsics emitted as functions, __attribute__((target(TargetGuard))) is added to the definition of the function. Along with the existing always_inline intrinsic, this will give a compile time error if the function is used in a context where the target feature is not available. - For intrinsics emitted as macros, the __builtins are emitted into arm_neon.inc using TARGET_BUILTIN as opposed to BUILTIN, which includes the target feature and gives an error if the builtin is found in a function without the required features, similar to arm_sve.h. The second method requires that the intrinsics be separable from the existing _v intrinsics used in other types. For example __builtin_neon_splat_lane_bf16 is used as opposed to __builtin_neon_splat_lane_v. There are some adjustments to the CGBuiltin to account for intrinsics that can be treated similarly, except for their target features. Differential Revision: https://reviews.llvm.org/D132034
1206 lines
40 KiB
C++
1206 lines
40 KiB
C++
//===--- AArch64.cpp - Implement AArch64 target feature support -----------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements AArch64 TargetInfo objects.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "AArch64.h"
|
|
#include "clang/Basic/LangOptions.h"
|
|
#include "clang/Basic/TargetBuiltins.h"
|
|
#include "clang/Basic/TargetInfo.h"
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/ADT/StringSwitch.h"
|
|
#include "llvm/Support/AArch64TargetParser.h"
|
|
|
|
using namespace clang;
|
|
using namespace clang::targets;
|
|
|
|
const Builtin::Info AArch64TargetInfo::BuiltinInfo[] = {
|
|
#define BUILTIN(ID, TYPE, ATTRS) \
|
|
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
|
|
#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE) \
|
|
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, FEATURE},
|
|
#include "clang/Basic/BuiltinsNEON.def"
|
|
|
|
#define BUILTIN(ID, TYPE, ATTRS) \
|
|
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
|
|
#include "clang/Basic/BuiltinsSVE.def"
|
|
|
|
#define BUILTIN(ID, TYPE, ATTRS) \
|
|
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
|
|
#define LANGBUILTIN(ID, TYPE, ATTRS, LANG) \
|
|
{#ID, TYPE, ATTRS, nullptr, LANG, nullptr},
|
|
#define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE) \
|
|
{#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, FEATURE},
|
|
#define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANGS, FEATURE) \
|
|
{#ID, TYPE, ATTRS, HEADER, LANGS, FEATURE},
|
|
#include "clang/Basic/BuiltinsAArch64.def"
|
|
};
|
|
|
|
static StringRef getArchVersionString(llvm::AArch64::ArchKind Kind) {
|
|
switch (Kind) {
|
|
case llvm::AArch64::ArchKind::ARMV9A:
|
|
case llvm::AArch64::ArchKind::ARMV9_1A:
|
|
case llvm::AArch64::ArchKind::ARMV9_2A:
|
|
case llvm::AArch64::ArchKind::ARMV9_3A:
|
|
return "9";
|
|
default:
|
|
return "8";
|
|
}
|
|
}
|
|
|
|
StringRef AArch64TargetInfo::getArchProfile() const {
|
|
switch (ArchKind) {
|
|
case llvm::AArch64::ArchKind::ARMV8R:
|
|
return "R";
|
|
default:
|
|
return "A";
|
|
}
|
|
}
|
|
|
|
AArch64TargetInfo::AArch64TargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: TargetInfo(Triple), ABI("aapcs") {
|
|
if (getTriple().isOSOpenBSD()) {
|
|
Int64Type = SignedLongLong;
|
|
IntMaxType = SignedLongLong;
|
|
} else {
|
|
if (!getTriple().isOSDarwin() && !getTriple().isOSNetBSD())
|
|
WCharType = UnsignedInt;
|
|
|
|
Int64Type = SignedLong;
|
|
IntMaxType = SignedLong;
|
|
}
|
|
|
|
// All AArch64 implementations support ARMv8 FP, which makes half a legal type.
|
|
HasLegalHalfType = true;
|
|
HalfArgsAndReturns = true;
|
|
HasFloat16 = true;
|
|
|
|
if (Triple.isArch64Bit())
|
|
LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
|
|
else
|
|
LongWidth = LongAlign = PointerWidth = PointerAlign = 32;
|
|
|
|
MaxVectorAlign = 128;
|
|
MaxAtomicInlineWidth = 128;
|
|
MaxAtomicPromoteWidth = 128;
|
|
|
|
LongDoubleWidth = LongDoubleAlign = SuitableAlign = 128;
|
|
LongDoubleFormat = &llvm::APFloat::IEEEquad();
|
|
|
|
BFloat16Width = BFloat16Align = 16;
|
|
BFloat16Format = &llvm::APFloat::BFloat();
|
|
|
|
// Make __builtin_ms_va_list available.
|
|
HasBuiltinMSVaList = true;
|
|
|
|
// Make the SVE types available. Note that this deliberately doesn't
|
|
// depend on SveMode, since in principle it should be possible to turn
|
|
// SVE on and off within a translation unit. It should also be possible
|
|
// to compile the global declaration:
|
|
//
|
|
// __SVInt8_t *ptr;
|
|
//
|
|
// even without SVE.
|
|
HasAArch64SVETypes = true;
|
|
|
|
// {} in inline assembly are neon specifiers, not assembly variant
|
|
// specifiers.
|
|
NoAsmVariants = true;
|
|
|
|
// AAPCS gives rules for bitfields. 7.1.7 says: "The container type
|
|
// contributes to the alignment of the containing aggregate in the same way
|
|
// a plain (non bit-field) member of that type would, without exception for
|
|
// zero-sized or anonymous bit-fields."
|
|
assert(UseBitFieldTypeAlignment && "bitfields affect type alignment");
|
|
UseZeroLengthBitfieldAlignment = true;
|
|
|
|
// AArch64 targets default to using the ARM C++ ABI.
|
|
TheCXXABI.set(TargetCXXABI::GenericAArch64);
|
|
|
|
if (Triple.getOS() == llvm::Triple::Linux)
|
|
this->MCountName = "\01_mcount";
|
|
else if (Triple.getOS() == llvm::Triple::UnknownOS)
|
|
this->MCountName =
|
|
Opts.EABIVersion == llvm::EABI::GNU ? "\01_mcount" : "mcount";
|
|
}
|
|
|
|
StringRef AArch64TargetInfo::getABI() const { return ABI; }
|
|
|
|
bool AArch64TargetInfo::setABI(const std::string &Name) {
|
|
if (Name != "aapcs" && Name != "darwinpcs")
|
|
return false;
|
|
|
|
ABI = Name;
|
|
return true;
|
|
}
|
|
|
|
bool AArch64TargetInfo::validateBranchProtection(StringRef Spec, StringRef,
|
|
BranchProtectionInfo &BPI,
|
|
StringRef &Err) const {
|
|
llvm::ARM::ParsedBranchProtection PBP;
|
|
if (!llvm::ARM::parseBranchProtection(Spec, PBP, Err))
|
|
return false;
|
|
|
|
BPI.SignReturnAddr =
|
|
llvm::StringSwitch<LangOptions::SignReturnAddressScopeKind>(PBP.Scope)
|
|
.Case("non-leaf", LangOptions::SignReturnAddressScopeKind::NonLeaf)
|
|
.Case("all", LangOptions::SignReturnAddressScopeKind::All)
|
|
.Default(LangOptions::SignReturnAddressScopeKind::None);
|
|
|
|
if (PBP.Key == "a_key")
|
|
BPI.SignKey = LangOptions::SignReturnAddressKeyKind::AKey;
|
|
else
|
|
BPI.SignKey = LangOptions::SignReturnAddressKeyKind::BKey;
|
|
|
|
BPI.BranchTargetEnforcement = PBP.BranchTargetEnforcement;
|
|
return true;
|
|
}
|
|
|
|
bool AArch64TargetInfo::isValidCPUName(StringRef Name) const {
|
|
return Name == "generic" ||
|
|
llvm::AArch64::parseCPUArch(Name) != llvm::AArch64::ArchKind::INVALID;
|
|
}
|
|
|
|
bool AArch64TargetInfo::setCPU(const std::string &Name) {
|
|
return isValidCPUName(Name);
|
|
}
|
|
|
|
void AArch64TargetInfo::fillValidCPUList(
|
|
SmallVectorImpl<StringRef> &Values) const {
|
|
llvm::AArch64::fillValidCPUArchList(Values);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV81A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__ARM_FEATURE_QRDMX", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_ATOMICS", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_CRC32", "1");
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV82A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Also include the ARMv8.1 defines
|
|
getTargetDefinesARMV81A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV83A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__ARM_FEATURE_COMPLEX", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_JCVT", "1");
|
|
// Also include the Armv8.2 defines
|
|
getTargetDefinesARMV82A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV84A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Also include the Armv8.3 defines
|
|
getTargetDefinesARMV83A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV85A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__ARM_FEATURE_FRINT", "1");
|
|
// Also include the Armv8.4 defines
|
|
getTargetDefinesARMV84A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV86A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Also include the Armv8.5 defines
|
|
// FIXME: Armv8.6 makes the following extensions mandatory:
|
|
// - __ARM_FEATURE_BF16
|
|
// - __ARM_FEATURE_MATMUL_INT8
|
|
// Handle them here.
|
|
getTargetDefinesARMV85A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV87A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Also include the Armv8.6 defines
|
|
getTargetDefinesARMV86A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV88A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Also include the Armv8.7 defines
|
|
getTargetDefinesARMV87A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV9A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Armv9-A maps to Armv8.5-A
|
|
getTargetDefinesARMV85A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV91A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Armv9.1-A maps to Armv8.6-A
|
|
getTargetDefinesARMV86A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV92A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Armv9.2-A maps to Armv8.7-A
|
|
getTargetDefinesARMV87A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefinesARMV93A(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Armv9.3-A maps to Armv8.8-A
|
|
getTargetDefinesARMV88A(Opts, Builder);
|
|
}
|
|
|
|
void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
// Target identification.
|
|
Builder.defineMacro("__aarch64__");
|
|
// For bare-metal.
|
|
if (getTriple().getOS() == llvm::Triple::UnknownOS &&
|
|
getTriple().isOSBinFormatELF())
|
|
Builder.defineMacro("__ELF__");
|
|
|
|
// Target properties.
|
|
if (!getTriple().isOSWindows() && getTriple().isArch64Bit()) {
|
|
Builder.defineMacro("_LP64");
|
|
Builder.defineMacro("__LP64__");
|
|
}
|
|
|
|
std::string CodeModel = getTargetOpts().CodeModel;
|
|
if (CodeModel == "default")
|
|
CodeModel = "small";
|
|
for (char &c : CodeModel)
|
|
c = toupper(c);
|
|
Builder.defineMacro("__AARCH64_CMODEL_" + CodeModel + "__");
|
|
|
|
// ACLE predefines. Many can only have one possible value on v8 AArch64.
|
|
Builder.defineMacro("__ARM_ACLE", "200");
|
|
Builder.defineMacro("__ARM_ARCH", getArchVersionString(ArchKind));
|
|
Builder.defineMacro("__ARM_ARCH_PROFILE", "'" + getArchProfile() + "'");
|
|
|
|
Builder.defineMacro("__ARM_64BIT_STATE", "1");
|
|
Builder.defineMacro("__ARM_PCS_AAPCS64", "1");
|
|
Builder.defineMacro("__ARM_ARCH_ISA_A64", "1");
|
|
|
|
Builder.defineMacro("__ARM_FEATURE_CLZ", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_FMA", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_LDREX", "0xF");
|
|
Builder.defineMacro("__ARM_FEATURE_IDIV", "1"); // As specified in ACLE
|
|
Builder.defineMacro("__ARM_FEATURE_DIV"); // For backwards compatibility
|
|
Builder.defineMacro("__ARM_FEATURE_NUMERIC_MAXMIN", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_DIRECTED_ROUNDING", "1");
|
|
|
|
Builder.defineMacro("__ARM_ALIGN_MAX_STACK_PWR", "4");
|
|
|
|
// 0xe implies support for half, single and double precision operations.
|
|
Builder.defineMacro("__ARM_FP", "0xE");
|
|
|
|
// PCS specifies this for SysV variants, which is all we support. Other ABIs
|
|
// may choose __ARM_FP16_FORMAT_ALTERNATIVE.
|
|
Builder.defineMacro("__ARM_FP16_FORMAT_IEEE", "1");
|
|
Builder.defineMacro("__ARM_FP16_ARGS", "1");
|
|
|
|
if (Opts.UnsafeFPMath)
|
|
Builder.defineMacro("__ARM_FP_FAST", "1");
|
|
|
|
Builder.defineMacro("__ARM_SIZEOF_WCHAR_T",
|
|
Twine(Opts.WCharSize ? Opts.WCharSize : 4));
|
|
|
|
Builder.defineMacro("__ARM_SIZEOF_MINIMAL_ENUM", Opts.ShortEnums ? "1" : "4");
|
|
|
|
if (FPU & NeonMode) {
|
|
Builder.defineMacro("__ARM_NEON", "1");
|
|
// 64-bit NEON supports half, single and double precision operations.
|
|
Builder.defineMacro("__ARM_NEON_FP", "0xE");
|
|
}
|
|
|
|
if (FPU & SveMode)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE", "1");
|
|
|
|
if ((FPU & NeonMode) && (FPU & SveMode))
|
|
Builder.defineMacro("__ARM_NEON_SVE_BRIDGE", "1");
|
|
|
|
if (HasSVE2)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE2", "1");
|
|
|
|
if (HasSVE2 && HasSVE2AES)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE2_AES", "1");
|
|
|
|
if (HasSVE2 && HasSVE2BitPerm)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE2_BITPERM", "1");
|
|
|
|
if (HasSVE2 && HasSVE2SHA3)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE2_SHA3", "1");
|
|
|
|
if (HasSVE2 && HasSVE2SM4)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE2_SM4", "1");
|
|
|
|
if (HasCRC)
|
|
Builder.defineMacro("__ARM_FEATURE_CRC32", "1");
|
|
|
|
if (HasRCPC)
|
|
Builder.defineMacro("__ARM_FEATURE_RCPC", "1");
|
|
|
|
// The __ARM_FEATURE_CRYPTO is deprecated in favor of finer grained feature
|
|
// macros for AES, SHA2, SHA3 and SM4
|
|
if (HasAES && HasSHA2)
|
|
Builder.defineMacro("__ARM_FEATURE_CRYPTO", "1");
|
|
|
|
if (HasAES)
|
|
Builder.defineMacro("__ARM_FEATURE_AES", "1");
|
|
|
|
if (HasSHA2)
|
|
Builder.defineMacro("__ARM_FEATURE_SHA2", "1");
|
|
|
|
if (HasSHA3) {
|
|
Builder.defineMacro("__ARM_FEATURE_SHA3", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_SHA512", "1");
|
|
}
|
|
|
|
if (HasSM4) {
|
|
Builder.defineMacro("__ARM_FEATURE_SM3", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_SM4", "1");
|
|
}
|
|
|
|
if (HasUnaligned)
|
|
Builder.defineMacro("__ARM_FEATURE_UNALIGNED", "1");
|
|
|
|
if ((FPU & NeonMode) && HasFullFP16)
|
|
Builder.defineMacro("__ARM_FEATURE_FP16_VECTOR_ARITHMETIC", "1");
|
|
if (HasFullFP16)
|
|
Builder.defineMacro("__ARM_FEATURE_FP16_SCALAR_ARITHMETIC", "1");
|
|
|
|
if (HasDotProd)
|
|
Builder.defineMacro("__ARM_FEATURE_DOTPROD", "1");
|
|
|
|
if (HasMTE)
|
|
Builder.defineMacro("__ARM_FEATURE_MEMORY_TAGGING", "1");
|
|
|
|
if (HasTME)
|
|
Builder.defineMacro("__ARM_FEATURE_TME", "1");
|
|
|
|
if (HasMatMul)
|
|
Builder.defineMacro("__ARM_FEATURE_MATMUL_INT8", "1");
|
|
|
|
if (HasLSE)
|
|
Builder.defineMacro("__ARM_FEATURE_ATOMICS", "1");
|
|
|
|
if (HasBFloat16) {
|
|
Builder.defineMacro("__ARM_FEATURE_BF16", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_BF16_VECTOR_ARITHMETIC", "1");
|
|
Builder.defineMacro("__ARM_BF16_FORMAT_ALTERNATIVE", "1");
|
|
Builder.defineMacro("__ARM_FEATURE_BF16_SCALAR_ARITHMETIC", "1");
|
|
}
|
|
|
|
if ((FPU & SveMode) && HasBFloat16) {
|
|
Builder.defineMacro("__ARM_FEATURE_SVE_BF16", "1");
|
|
}
|
|
|
|
if ((FPU & SveMode) && HasMatmulFP64)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE_MATMUL_FP64", "1");
|
|
|
|
if ((FPU & SveMode) && HasMatmulFP32)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE_MATMUL_FP32", "1");
|
|
|
|
if ((FPU & SveMode) && HasMatMul)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE_MATMUL_INT8", "1");
|
|
|
|
if ((FPU & NeonMode) && HasFP16FML)
|
|
Builder.defineMacro("__ARM_FEATURE_FP16_FML", "1");
|
|
|
|
if (Opts.hasSignReturnAddress()) {
|
|
// Bitmask:
|
|
// 0: Protection using the A key
|
|
// 1: Protection using the B key
|
|
// 2: Protection including leaf functions
|
|
unsigned Value = 0;
|
|
|
|
if (Opts.isSignReturnAddressWithAKey())
|
|
Value |= (1 << 0);
|
|
else
|
|
Value |= (1 << 1);
|
|
|
|
if (Opts.isSignReturnAddressScopeAll())
|
|
Value |= (1 << 2);
|
|
|
|
Builder.defineMacro("__ARM_FEATURE_PAC_DEFAULT", std::to_string(Value));
|
|
}
|
|
|
|
if (Opts.BranchTargetEnforcement)
|
|
Builder.defineMacro("__ARM_FEATURE_BTI_DEFAULT", "1");
|
|
|
|
if (HasLS64)
|
|
Builder.defineMacro("__ARM_FEATURE_LS64", "1");
|
|
|
|
if (HasRandGen)
|
|
Builder.defineMacro("__ARM_FEATURE_RNG", "1");
|
|
|
|
if (HasMOPS)
|
|
Builder.defineMacro("__ARM_FEATURE_MOPS", "1");
|
|
|
|
switch (ArchKind) {
|
|
default:
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_1A:
|
|
getTargetDefinesARMV81A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_2A:
|
|
getTargetDefinesARMV82A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_3A:
|
|
getTargetDefinesARMV83A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_4A:
|
|
getTargetDefinesARMV84A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_5A:
|
|
getTargetDefinesARMV85A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_6A:
|
|
getTargetDefinesARMV86A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_7A:
|
|
getTargetDefinesARMV87A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV8_8A:
|
|
getTargetDefinesARMV88A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV9A:
|
|
getTargetDefinesARMV9A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV9_1A:
|
|
getTargetDefinesARMV91A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV9_2A:
|
|
getTargetDefinesARMV92A(Opts, Builder);
|
|
break;
|
|
case llvm::AArch64::ArchKind::ARMV9_3A:
|
|
getTargetDefinesARMV93A(Opts, Builder);
|
|
break;
|
|
}
|
|
|
|
// All of the __sync_(bool|val)_compare_and_swap_(1|2|4|8) builtins work.
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
|
|
|
|
// Allow detection of fast FMA support.
|
|
Builder.defineMacro("__FP_FAST_FMA", "1");
|
|
Builder.defineMacro("__FP_FAST_FMAF", "1");
|
|
|
|
// C/C++ operators work on both VLS and VLA SVE types
|
|
if (FPU & SveMode)
|
|
Builder.defineMacro("__ARM_FEATURE_SVE_VECTOR_OPERATORS", "2");
|
|
|
|
if (Opts.VScaleMin && Opts.VScaleMin == Opts.VScaleMax) {
|
|
Builder.defineMacro("__ARM_FEATURE_SVE_BITS", Twine(Opts.VScaleMin * 128));
|
|
}
|
|
}
|
|
|
|
ArrayRef<Builtin::Info> AArch64TargetInfo::getTargetBuiltins() const {
|
|
return llvm::makeArrayRef(BuiltinInfo, clang::AArch64::LastTSBuiltin -
|
|
Builtin::FirstTSBuiltin);
|
|
}
|
|
|
|
Optional<std::pair<unsigned, unsigned>>
|
|
AArch64TargetInfo::getVScaleRange(const LangOptions &LangOpts) const {
|
|
if (LangOpts.VScaleMin || LangOpts.VScaleMax)
|
|
return std::pair<unsigned, unsigned>(
|
|
LangOpts.VScaleMin ? LangOpts.VScaleMin : 1, LangOpts.VScaleMax);
|
|
|
|
if (hasFeature("sve"))
|
|
return std::pair<unsigned, unsigned>(1, 16);
|
|
|
|
return None;
|
|
}
|
|
|
|
bool AArch64TargetInfo::hasFeature(StringRef Feature) const {
|
|
return llvm::StringSwitch<bool>(Feature)
|
|
.Cases("aarch64", "arm64", "arm", true)
|
|
.Case("neon", FPU & NeonMode)
|
|
.Cases("sve", "sve2", "sve2-bitperm", "sve2-aes", "sve2-sha3", "sve2-sm4", "f64mm", "f32mm", "i8mm", "bf16", FPU & SveMode)
|
|
.Case("ls64", HasLS64)
|
|
.Default(false);
|
|
}
|
|
|
|
void AArch64TargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
|
|
StringRef Name, bool Enabled) const {
|
|
Features[Name] = Enabled;
|
|
llvm::AArch64::ArchKind AK = llvm::AArch64::getSubArchArchKind(Name);
|
|
// Add all previous architecture versions.
|
|
// In case of v9.x the v8.x counterparts are added too.
|
|
if ("9" == getArchVersionString(AK))
|
|
for (llvm::AArch64::ArchKind I = llvm::AArch64::convertV9toV8(AK);
|
|
I != llvm::AArch64::ArchKind::INVALID; --I)
|
|
Features[llvm::AArch64::getSubArch(I)] = Enabled;
|
|
|
|
for (llvm::AArch64::ArchKind I = --AK; I != llvm::AArch64::ArchKind::INVALID;
|
|
--I)
|
|
Features[llvm::AArch64::getSubArch(I)] = Enabled;
|
|
}
|
|
|
|
bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
|
|
DiagnosticsEngine &Diags) {
|
|
FPU = FPUMode;
|
|
HasCRC = false;
|
|
HasAES = false;
|
|
HasSHA2 = false;
|
|
HasSHA3 = false;
|
|
HasSM4 = false;
|
|
HasUnaligned = true;
|
|
HasFullFP16 = false;
|
|
HasDotProd = false;
|
|
HasFP16FML = false;
|
|
HasMTE = false;
|
|
HasTME = false;
|
|
HasLS64 = false;
|
|
HasRandGen = false;
|
|
HasMatMul = false;
|
|
HasBFloat16 = false;
|
|
HasSVE2 = false;
|
|
HasSVE2AES = false;
|
|
HasSVE2SHA3 = false;
|
|
HasSVE2SM4 = false;
|
|
HasSVE2BitPerm = false;
|
|
HasMatmulFP64 = false;
|
|
HasMatmulFP32 = false;
|
|
HasLSE = false;
|
|
HasMOPS = false;
|
|
HasRCPC = false;
|
|
|
|
ArchKind = llvm::AArch64::ArchKind::INVALID;
|
|
|
|
for (const auto &Feature : Features) {
|
|
if (Feature == "+neon")
|
|
FPU |= NeonMode;
|
|
if (Feature == "+sve") {
|
|
FPU |= SveMode;
|
|
HasFullFP16 = true;
|
|
}
|
|
if (Feature == "+sve2") {
|
|
FPU |= SveMode;
|
|
HasFullFP16 = true;
|
|
HasSVE2 = true;
|
|
}
|
|
if (Feature == "+sve2-aes") {
|
|
FPU |= SveMode;
|
|
HasFullFP16 = true;
|
|
HasSVE2 = true;
|
|
HasSVE2AES = true;
|
|
}
|
|
if (Feature == "+sve2-sha3") {
|
|
FPU |= SveMode;
|
|
HasFullFP16 = true;
|
|
HasSVE2 = true;
|
|
HasSVE2SHA3 = true;
|
|
}
|
|
if (Feature == "+sve2-sm4") {
|
|
FPU |= SveMode;
|
|
HasFullFP16 = true;
|
|
HasSVE2 = true;
|
|
HasSVE2SM4 = true;
|
|
}
|
|
if (Feature == "+sve2-bitperm") {
|
|
FPU |= SveMode;
|
|
HasFullFP16 = true;
|
|
HasSVE2 = true;
|
|
HasSVE2BitPerm = true;
|
|
}
|
|
if (Feature == "+f32mm") {
|
|
FPU |= SveMode;
|
|
HasMatmulFP32 = true;
|
|
}
|
|
if (Feature == "+f64mm") {
|
|
FPU |= SveMode;
|
|
HasMatmulFP64 = true;
|
|
}
|
|
if (Feature == "+crc")
|
|
HasCRC = true;
|
|
if (Feature == "+rcpc")
|
|
HasRCPC = true;
|
|
if (Feature == "+aes")
|
|
HasAES = true;
|
|
if (Feature == "+sha2")
|
|
HasSHA2 = true;
|
|
if (Feature == "+sha3") {
|
|
HasSHA2 = true;
|
|
HasSHA3 = true;
|
|
}
|
|
if (Feature == "+sm4")
|
|
HasSM4 = true;
|
|
if (Feature == "+strict-align")
|
|
HasUnaligned = false;
|
|
// All predecessor archs are added but select the latest one for ArchKind.
|
|
if (Feature == "+v8a" && ArchKind < llvm::AArch64::ArchKind::ARMV8A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8A;
|
|
if (Feature == "+v8.1a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_1A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_1A;
|
|
if (Feature == "+v8.2a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_2A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_2A;
|
|
if (Feature == "+v8.3a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_3A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_3A;
|
|
if (Feature == "+v8.4a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_4A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_4A;
|
|
if (Feature == "+v8.5a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_5A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_5A;
|
|
if (Feature == "+v8.6a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_6A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_6A;
|
|
if (Feature == "+v8.7a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_7A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_7A;
|
|
if (Feature == "+v8.8a" && ArchKind < llvm::AArch64::ArchKind::ARMV8_8A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8_8A;
|
|
if (Feature == "+v9a" && ArchKind < llvm::AArch64::ArchKind::ARMV9A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV9A;
|
|
if (Feature == "+v9.1a" && ArchKind < llvm::AArch64::ArchKind::ARMV9_1A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV9_1A;
|
|
if (Feature == "+v9.2a" && ArchKind < llvm::AArch64::ArchKind::ARMV9_2A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV9_2A;
|
|
if (Feature == "+v9.3a" && ArchKind < llvm::AArch64::ArchKind::ARMV9_3A)
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV9_3A;
|
|
if (Feature == "+v8r")
|
|
ArchKind = llvm::AArch64::ArchKind::ARMV8R;
|
|
if (Feature == "+fullfp16")
|
|
HasFullFP16 = true;
|
|
if (Feature == "+dotprod")
|
|
HasDotProd = true;
|
|
if (Feature == "+fp16fml")
|
|
HasFP16FML = true;
|
|
if (Feature == "+mte")
|
|
HasMTE = true;
|
|
if (Feature == "+tme")
|
|
HasTME = true;
|
|
if (Feature == "+pauth")
|
|
HasPAuth = true;
|
|
if (Feature == "+i8mm")
|
|
HasMatMul = true;
|
|
if (Feature == "+bf16")
|
|
HasBFloat16 = true;
|
|
if (Feature == "+lse")
|
|
HasLSE = true;
|
|
if (Feature == "+ls64")
|
|
HasLS64 = true;
|
|
if (Feature == "+rand")
|
|
HasRandGen = true;
|
|
if (Feature == "+flagm")
|
|
HasFlagM = true;
|
|
if (Feature == "+mops")
|
|
HasMOPS = true;
|
|
}
|
|
|
|
setDataLayout();
|
|
|
|
return true;
|
|
}
|
|
|
|
bool AArch64TargetInfo::initFeatureMap(
|
|
llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
|
|
const std::vector<std::string> &FeaturesVec) const {
|
|
// Parse the CPU and add any implied features.
|
|
llvm::AArch64::ArchKind Arch = llvm::AArch64::parseCPUArch(CPU);
|
|
if (Arch != llvm::AArch64::ArchKind::INVALID) {
|
|
uint64_t Exts = llvm::AArch64::getDefaultExtensions(CPU, Arch);
|
|
std::vector<StringRef> CPUFeats;
|
|
llvm::AArch64::getExtensionFeatures(Exts, CPUFeats);
|
|
for (auto F : CPUFeats) {
|
|
assert((F[0] == '+' || F[0] == '-') && "Expected +/- in target feature!");
|
|
setFeatureEnabled(Features, F.drop_front(), F[0] == '+');
|
|
}
|
|
}
|
|
|
|
return TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec);
|
|
}
|
|
|
|
// Parse AArch64 Target attributes, which are a comma separated list of:
|
|
// "arch=<arch>" - parsed to features as per -march=..
|
|
// "cpu=<cpu>" - parsed to features as per -mcpu=.., with CPU set to <cpu>
|
|
// "tune=<cpu>" - TuneCPU set to <cpu>
|
|
// "feature", "no-feature" - Add (or remove) feature.
|
|
// "+feature", "+nofeature" - Add (or remove) feature.
|
|
ParsedTargetAttr AArch64TargetInfo::parseTargetAttr(StringRef Features) const {
|
|
ParsedTargetAttr Ret;
|
|
if (Features == "default")
|
|
return Ret;
|
|
SmallVector<StringRef, 1> AttrFeatures;
|
|
Features.split(AttrFeatures, ",");
|
|
bool FoundArch = false;
|
|
|
|
auto SplitAndAddFeatures = [](StringRef FeatString,
|
|
std::vector<std::string> &Features) {
|
|
SmallVector<StringRef, 8> SplitFeatures;
|
|
FeatString.split(SplitFeatures, StringRef("+"), -1, false);
|
|
for (StringRef Feature : SplitFeatures) {
|
|
StringRef FeatureName = llvm::AArch64::getArchExtFeature(Feature);
|
|
if (!FeatureName.empty())
|
|
Features.push_back(FeatureName.str());
|
|
else
|
|
// Pushing the original feature string to give a sema error later on
|
|
// when they get checked.
|
|
Features.push_back(Feature.str());
|
|
}
|
|
};
|
|
|
|
for (auto &Feature : AttrFeatures) {
|
|
Feature = Feature.trim();
|
|
if (Feature.startswith("fpmath="))
|
|
continue;
|
|
|
|
if (Feature.startswith("branch-protection=")) {
|
|
Ret.BranchProtection = Feature.split('=').second.trim();
|
|
continue;
|
|
}
|
|
|
|
if (Feature.startswith("arch=")) {
|
|
if (FoundArch)
|
|
Ret.Duplicate = "arch=";
|
|
FoundArch = true;
|
|
std::pair<StringRef, StringRef> Split =
|
|
Feature.split("=").second.trim().split("+");
|
|
llvm::AArch64::ArchKind ArchKind = llvm::AArch64::parseArch(Split.first);
|
|
|
|
// Parse the architecture version, adding the required features to
|
|
// Ret.Features.
|
|
std::vector<StringRef> FeatureStrs;
|
|
if (ArchKind == llvm::AArch64::ArchKind::INVALID ||
|
|
!llvm::AArch64::getArchFeatures(ArchKind, FeatureStrs))
|
|
continue;
|
|
for (auto R : FeatureStrs)
|
|
Ret.Features.push_back(R.str());
|
|
// Add any extra features, after the +
|
|
SplitAndAddFeatures(Split.second, Ret.Features);
|
|
} else if (Feature.startswith("cpu=")) {
|
|
if (!Ret.CPU.empty())
|
|
Ret.Duplicate = "cpu=";
|
|
else {
|
|
// Split the cpu string into "cpu=", "cortex-a710" and any remaining
|
|
// "+feat" features.
|
|
std::pair<StringRef, StringRef> Split =
|
|
Feature.split("=").second.trim().split("+");
|
|
Ret.CPU = Split.first;
|
|
SplitAndAddFeatures(Split.second, Ret.Features);
|
|
}
|
|
} else if (Feature.startswith("tune=")) {
|
|
if (!Ret.Tune.empty())
|
|
Ret.Duplicate = "tune=";
|
|
else
|
|
Ret.Tune = Feature.split("=").second.trim();
|
|
} else if (Feature.startswith("no-"))
|
|
Ret.Features.push_back("-" + Feature.split("-").second.str());
|
|
else if (Feature.startswith("+")) {
|
|
SplitAndAddFeatures(Feature, Ret.Features);
|
|
}
|
|
else
|
|
Ret.Features.push_back("+" + Feature.str());
|
|
}
|
|
return Ret;
|
|
}
|
|
|
|
bool AArch64TargetInfo::hasBFloat16Type() const {
|
|
return true;
|
|
}
|
|
|
|
TargetInfo::CallingConvCheckResult
|
|
AArch64TargetInfo::checkCallingConvention(CallingConv CC) const {
|
|
switch (CC) {
|
|
case CC_C:
|
|
case CC_Swift:
|
|
case CC_SwiftAsync:
|
|
case CC_PreserveMost:
|
|
case CC_PreserveAll:
|
|
case CC_OpenCLKernel:
|
|
case CC_AArch64VectorCall:
|
|
case CC_AArch64SVEPCS:
|
|
case CC_Win64:
|
|
return CCCR_OK;
|
|
default:
|
|
return CCCR_Warning;
|
|
}
|
|
}
|
|
|
|
bool AArch64TargetInfo::isCLZForZeroUndef() const { return false; }
|
|
|
|
TargetInfo::BuiltinVaListKind AArch64TargetInfo::getBuiltinVaListKind() const {
|
|
return TargetInfo::AArch64ABIBuiltinVaList;
|
|
}
|
|
|
|
const char *const AArch64TargetInfo::GCCRegNames[] = {
|
|
// 32-bit Integer registers
|
|
"w0", "w1", "w2", "w3", "w4", "w5", "w6", "w7", "w8", "w9", "w10", "w11",
|
|
"w12", "w13", "w14", "w15", "w16", "w17", "w18", "w19", "w20", "w21", "w22",
|
|
"w23", "w24", "w25", "w26", "w27", "w28", "w29", "w30", "wsp",
|
|
|
|
// 64-bit Integer registers
|
|
"x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", "x10", "x11",
|
|
"x12", "x13", "x14", "x15", "x16", "x17", "x18", "x19", "x20", "x21", "x22",
|
|
"x23", "x24", "x25", "x26", "x27", "x28", "fp", "lr", "sp",
|
|
|
|
// 32-bit floating point regsisters
|
|
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", "s8", "s9", "s10", "s11",
|
|
"s12", "s13", "s14", "s15", "s16", "s17", "s18", "s19", "s20", "s21", "s22",
|
|
"s23", "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31",
|
|
|
|
// 64-bit floating point regsisters
|
|
"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8", "d9", "d10", "d11",
|
|
"d12", "d13", "d14", "d15", "d16", "d17", "d18", "d19", "d20", "d21", "d22",
|
|
"d23", "d24", "d25", "d26", "d27", "d28", "d29", "d30", "d31",
|
|
|
|
// Neon vector registers
|
|
"v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9", "v10", "v11",
|
|
"v12", "v13", "v14", "v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22",
|
|
"v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
|
|
|
|
// SVE vector registers
|
|
"z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8", "z9", "z10",
|
|
"z11", "z12", "z13", "z14", "z15", "z16", "z17", "z18", "z19", "z20", "z21",
|
|
"z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31",
|
|
|
|
// SVE predicate registers
|
|
"p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7", "p8", "p9", "p10",
|
|
"p11", "p12", "p13", "p14", "p15"
|
|
};
|
|
|
|
ArrayRef<const char *> AArch64TargetInfo::getGCCRegNames() const {
|
|
return llvm::makeArrayRef(GCCRegNames);
|
|
}
|
|
|
|
const TargetInfo::GCCRegAlias AArch64TargetInfo::GCCRegAliases[] = {
|
|
{{"w31"}, "wsp"},
|
|
{{"x31"}, "sp"},
|
|
// GCC rN registers are aliases of xN registers.
|
|
{{"r0"}, "x0"},
|
|
{{"r1"}, "x1"},
|
|
{{"r2"}, "x2"},
|
|
{{"r3"}, "x3"},
|
|
{{"r4"}, "x4"},
|
|
{{"r5"}, "x5"},
|
|
{{"r6"}, "x6"},
|
|
{{"r7"}, "x7"},
|
|
{{"r8"}, "x8"},
|
|
{{"r9"}, "x9"},
|
|
{{"r10"}, "x10"},
|
|
{{"r11"}, "x11"},
|
|
{{"r12"}, "x12"},
|
|
{{"r13"}, "x13"},
|
|
{{"r14"}, "x14"},
|
|
{{"r15"}, "x15"},
|
|
{{"r16"}, "x16"},
|
|
{{"r17"}, "x17"},
|
|
{{"r18"}, "x18"},
|
|
{{"r19"}, "x19"},
|
|
{{"r20"}, "x20"},
|
|
{{"r21"}, "x21"},
|
|
{{"r22"}, "x22"},
|
|
{{"r23"}, "x23"},
|
|
{{"r24"}, "x24"},
|
|
{{"r25"}, "x25"},
|
|
{{"r26"}, "x26"},
|
|
{{"r27"}, "x27"},
|
|
{{"r28"}, "x28"},
|
|
{{"r29", "x29"}, "fp"},
|
|
{{"r30", "x30"}, "lr"},
|
|
// The S/D/Q and W/X registers overlap, but aren't really aliases; we
|
|
// don't want to substitute one of these for a different-sized one.
|
|
};
|
|
|
|
ArrayRef<TargetInfo::GCCRegAlias> AArch64TargetInfo::getGCCRegAliases() const {
|
|
return llvm::makeArrayRef(GCCRegAliases);
|
|
}
|
|
|
|
bool AArch64TargetInfo::validateAsmConstraint(
|
|
const char *&Name, TargetInfo::ConstraintInfo &Info) const {
|
|
switch (*Name) {
|
|
default:
|
|
return false;
|
|
case 'w': // Floating point and SIMD registers (V0-V31)
|
|
Info.setAllowsRegister();
|
|
return true;
|
|
case 'I': // Constant that can be used with an ADD instruction
|
|
case 'J': // Constant that can be used with a SUB instruction
|
|
case 'K': // Constant that can be used with a 32-bit logical instruction
|
|
case 'L': // Constant that can be used with a 64-bit logical instruction
|
|
case 'M': // Constant that can be used as a 32-bit MOV immediate
|
|
case 'N': // Constant that can be used as a 64-bit MOV immediate
|
|
case 'Y': // Floating point constant zero
|
|
case 'Z': // Integer constant zero
|
|
return true;
|
|
case 'Q': // A memory reference with base register and no offset
|
|
Info.setAllowsMemory();
|
|
return true;
|
|
case 'S': // A symbolic address
|
|
Info.setAllowsRegister();
|
|
return true;
|
|
case 'U':
|
|
if (Name[1] == 'p' && (Name[2] == 'l' || Name[2] == 'a')) {
|
|
// SVE predicate registers ("Upa"=P0-15, "Upl"=P0-P7)
|
|
Info.setAllowsRegister();
|
|
Name += 2;
|
|
return true;
|
|
}
|
|
// Ump: A memory address suitable for ldp/stp in SI, DI, SF and DF modes.
|
|
// Utf: A memory address suitable for ldp/stp in TF mode.
|
|
// Usa: An absolute symbolic address.
|
|
// Ush: The high part (bits 32:12) of a pc-relative symbolic address.
|
|
|
|
// Better to return an error saying that it's an unrecognised constraint
|
|
// even if this is a valid constraint in gcc.
|
|
return false;
|
|
case 'z': // Zero register, wzr or xzr
|
|
Info.setAllowsRegister();
|
|
return true;
|
|
case 'x': // Floating point and SIMD registers (V0-V15)
|
|
Info.setAllowsRegister();
|
|
return true;
|
|
case 'y': // SVE registers (V0-V7)
|
|
Info.setAllowsRegister();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool AArch64TargetInfo::validateConstraintModifier(
|
|
StringRef Constraint, char Modifier, unsigned Size,
|
|
std::string &SuggestedModifier) const {
|
|
// Strip off constraint modifiers.
|
|
while (Constraint[0] == '=' || Constraint[0] == '+' || Constraint[0] == '&')
|
|
Constraint = Constraint.substr(1);
|
|
|
|
switch (Constraint[0]) {
|
|
default:
|
|
return true;
|
|
case 'z':
|
|
case 'r': {
|
|
switch (Modifier) {
|
|
case 'x':
|
|
case 'w':
|
|
// For now assume that the person knows what they're
|
|
// doing with the modifier.
|
|
return true;
|
|
default:
|
|
// By default an 'r' constraint will be in the 'x'
|
|
// registers.
|
|
if (Size == 64)
|
|
return true;
|
|
|
|
if (Size == 512)
|
|
return HasLS64;
|
|
|
|
SuggestedModifier = "w";
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const char *AArch64TargetInfo::getClobbers() const { return ""; }
|
|
|
|
int AArch64TargetInfo::getEHDataRegisterNumber(unsigned RegNo) const {
|
|
if (RegNo == 0)
|
|
return 0;
|
|
if (RegNo == 1)
|
|
return 1;
|
|
return -1;
|
|
}
|
|
|
|
bool AArch64TargetInfo::hasInt128Type() const { return true; }
|
|
|
|
AArch64leTargetInfo::AArch64leTargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: AArch64TargetInfo(Triple, Opts) {}
|
|
|
|
void AArch64leTargetInfo::setDataLayout() {
|
|
if (getTriple().isOSBinFormatMachO()) {
|
|
if(getTriple().isArch32Bit())
|
|
resetDataLayout("e-m:o-p:32:32-i64:64-i128:128-n32:64-S128", "_");
|
|
else
|
|
resetDataLayout("e-m:o-i64:64-i128:128-n32:64-S128", "_");
|
|
} else
|
|
resetDataLayout("e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128");
|
|
}
|
|
|
|
void AArch64leTargetInfo::getTargetDefines(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__AARCH64EL__");
|
|
AArch64TargetInfo::getTargetDefines(Opts, Builder);
|
|
}
|
|
|
|
AArch64beTargetInfo::AArch64beTargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: AArch64TargetInfo(Triple, Opts) {}
|
|
|
|
void AArch64beTargetInfo::getTargetDefines(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__AARCH64EB__");
|
|
Builder.defineMacro("__AARCH_BIG_ENDIAN");
|
|
Builder.defineMacro("__ARM_BIG_ENDIAN");
|
|
AArch64TargetInfo::getTargetDefines(Opts, Builder);
|
|
}
|
|
|
|
void AArch64beTargetInfo::setDataLayout() {
|
|
assert(!getTriple().isOSBinFormatMachO());
|
|
resetDataLayout("E-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128");
|
|
}
|
|
|
|
WindowsARM64TargetInfo::WindowsARM64TargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: WindowsTargetInfo<AArch64leTargetInfo>(Triple, Opts), Triple(Triple) {
|
|
|
|
// This is an LLP64 platform.
|
|
// int:4, long:4, long long:8, long double:8.
|
|
IntWidth = IntAlign = 32;
|
|
LongWidth = LongAlign = 32;
|
|
DoubleAlign = LongLongAlign = 64;
|
|
LongDoubleWidth = LongDoubleAlign = 64;
|
|
LongDoubleFormat = &llvm::APFloat::IEEEdouble();
|
|
IntMaxType = SignedLongLong;
|
|
Int64Type = SignedLongLong;
|
|
SizeType = UnsignedLongLong;
|
|
PtrDiffType = SignedLongLong;
|
|
IntPtrType = SignedLongLong;
|
|
}
|
|
|
|
void WindowsARM64TargetInfo::setDataLayout() {
|
|
resetDataLayout(Triple.isOSBinFormatMachO()
|
|
? "e-m:o-i64:64-i128:128-n32:64-S128"
|
|
: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128",
|
|
Triple.isOSBinFormatMachO() ? "_" : "");
|
|
}
|
|
|
|
TargetInfo::BuiltinVaListKind
|
|
WindowsARM64TargetInfo::getBuiltinVaListKind() const {
|
|
return TargetInfo::CharPtrBuiltinVaList;
|
|
}
|
|
|
|
TargetInfo::CallingConvCheckResult
|
|
WindowsARM64TargetInfo::checkCallingConvention(CallingConv CC) const {
|
|
switch (CC) {
|
|
case CC_X86StdCall:
|
|
case CC_X86ThisCall:
|
|
case CC_X86FastCall:
|
|
case CC_X86VectorCall:
|
|
return CCCR_Ignore;
|
|
case CC_C:
|
|
case CC_OpenCLKernel:
|
|
case CC_PreserveMost:
|
|
case CC_PreserveAll:
|
|
case CC_Swift:
|
|
case CC_SwiftAsync:
|
|
case CC_Win64:
|
|
return CCCR_OK;
|
|
default:
|
|
return CCCR_Warning;
|
|
}
|
|
}
|
|
|
|
MicrosoftARM64TargetInfo::MicrosoftARM64TargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: WindowsARM64TargetInfo(Triple, Opts) {
|
|
TheCXXABI.set(TargetCXXABI::Microsoft);
|
|
}
|
|
|
|
void MicrosoftARM64TargetInfo::getTargetDefines(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
WindowsARM64TargetInfo::getTargetDefines(Opts, Builder);
|
|
Builder.defineMacro("_M_ARM64", "1");
|
|
}
|
|
|
|
TargetInfo::CallingConvKind
|
|
MicrosoftARM64TargetInfo::getCallingConvKind(bool ClangABICompat4) const {
|
|
return CCK_MicrosoftWin64;
|
|
}
|
|
|
|
unsigned MicrosoftARM64TargetInfo::getMinGlobalAlign(uint64_t TypeSize) const {
|
|
unsigned Align = WindowsARM64TargetInfo::getMinGlobalAlign(TypeSize);
|
|
|
|
// MSVC does size based alignment for arm64 based on alignment section in
|
|
// below document, replicate that to keep alignment consistent with object
|
|
// files compiled by MSVC.
|
|
// https://docs.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions
|
|
if (TypeSize >= 512) { // TypeSize >= 64 bytes
|
|
Align = std::max(Align, 128u); // align type at least 16 bytes
|
|
} else if (TypeSize >= 64) { // TypeSize >= 8 bytes
|
|
Align = std::max(Align, 64u); // align type at least 8 butes
|
|
} else if (TypeSize >= 16) { // TypeSize >= 2 bytes
|
|
Align = std::max(Align, 32u); // align type at least 4 bytes
|
|
}
|
|
return Align;
|
|
}
|
|
|
|
MinGWARM64TargetInfo::MinGWARM64TargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: WindowsARM64TargetInfo(Triple, Opts) {
|
|
TheCXXABI.set(TargetCXXABI::GenericAArch64);
|
|
}
|
|
|
|
DarwinAArch64TargetInfo::DarwinAArch64TargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: DarwinTargetInfo<AArch64leTargetInfo>(Triple, Opts) {
|
|
Int64Type = SignedLongLong;
|
|
if (getTriple().isArch32Bit())
|
|
IntMaxType = SignedLongLong;
|
|
|
|
WCharType = SignedInt;
|
|
UseSignedCharForObjCBool = false;
|
|
|
|
LongDoubleWidth = LongDoubleAlign = SuitableAlign = 64;
|
|
LongDoubleFormat = &llvm::APFloat::IEEEdouble();
|
|
|
|
UseZeroLengthBitfieldAlignment = false;
|
|
|
|
if (getTriple().isArch32Bit()) {
|
|
UseBitFieldTypeAlignment = false;
|
|
ZeroLengthBitfieldBoundary = 32;
|
|
UseZeroLengthBitfieldAlignment = true;
|
|
TheCXXABI.set(TargetCXXABI::WatchOS);
|
|
} else
|
|
TheCXXABI.set(TargetCXXABI::AppleARM64);
|
|
}
|
|
|
|
void DarwinAArch64TargetInfo::getOSDefines(const LangOptions &Opts,
|
|
const llvm::Triple &Triple,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__AARCH64_SIMD__");
|
|
if (Triple.isArch32Bit())
|
|
Builder.defineMacro("__ARM64_ARCH_8_32__");
|
|
else
|
|
Builder.defineMacro("__ARM64_ARCH_8__");
|
|
Builder.defineMacro("__ARM_NEON__");
|
|
Builder.defineMacro("__LITTLE_ENDIAN__");
|
|
Builder.defineMacro("__REGISTER_PREFIX__", "");
|
|
Builder.defineMacro("__arm64", "1");
|
|
Builder.defineMacro("__arm64__", "1");
|
|
|
|
if (Triple.isArm64e())
|
|
Builder.defineMacro("__arm64e__", "1");
|
|
|
|
getDarwinDefines(Builder, Opts, Triple, PlatformName, PlatformMinVersion);
|
|
}
|
|
|
|
TargetInfo::BuiltinVaListKind
|
|
DarwinAArch64TargetInfo::getBuiltinVaListKind() const {
|
|
return TargetInfo::CharPtrBuiltinVaList;
|
|
}
|
|
|
|
// 64-bit RenderScript is aarch64
|
|
RenderScript64TargetInfo::RenderScript64TargetInfo(const llvm::Triple &Triple,
|
|
const TargetOptions &Opts)
|
|
: AArch64leTargetInfo(llvm::Triple("aarch64", Triple.getVendorName(),
|
|
Triple.getOSName(),
|
|
Triple.getEnvironmentName()),
|
|
Opts) {
|
|
IsRenderScriptTarget = true;
|
|
}
|
|
|
|
void RenderScript64TargetInfo::getTargetDefines(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("__RENDERSCRIPT__");
|
|
AArch64leTargetInfo::getTargetDefines(Opts, Builder);
|
|
}
|