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//===--- Hexagon.h - Declare Hexagon target feature support -----*- C++ -*-===//
//
// 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 declares Hexagon TargetInfo objects.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_HEXAGON_H
#define LLVM_CLANG_LIB_BASIC_TARGETS_HEXAGON_H
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/TargetOptions.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/Compiler.h"
namespace clang {
namespace targets {
// Hexagon abstract base class
class LLVM_LIBRARY_VISIBILITY HexagonTargetInfo : public TargetInfo {
static const Builtin::Info BuiltinInfo[];
static const char *const GCCRegNames[];
static const TargetInfo::GCCRegAlias GCCRegAliases[];
std::string CPU;
std::string HVXVersion;
bool HasHVX = false;
bool HasHVX64B = false;
bool HasHVX128B = false;
bool HasAudio = false;
bool UseLongCalls = false;
public:
HexagonTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
: TargetInfo(Triple) {
// Specify the vector alignment explicitly. For v512x1, the calculated
// alignment would be 512*alignment(i1), which is 512 bytes, instead of
// the required minimum of 64 bytes.
resetDataLayout(
"e-m:e-p:32:32:32-a:0-n16:32-"
"i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-"
"v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048");
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
IntPtrType = SignedInt;
// {} in inline assembly are packet specifiers, not assembly variant
// specifiers.
NoAsmVariants = true;
LargeArrayMinWidth = 64;
LargeArrayAlign = 64;
UseBitFieldTypeAlignment = true;
ZeroLengthBitfieldBoundary = 32;
MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
// These are the default values anyway, but explicitly make sure
// that the size of the boolean type is 8 bits. Bool vectors are used
// for modeling predicate registers in HVX, and the bool -> byte
// correspondence matches the HVX architecture.
BoolWidth = BoolAlign = 8;
}
ArrayRef<Builtin::Info> getTargetBuiltins() const override;
bool validateAsmConstraint(const char *&Name,
TargetInfo::ConstraintInfo &Info) const override {
switch (*Name) {
case 'v':
case 'q':
if (HasHVX) {
Info.setAllowsRegister();
return true;
}
break;
case 'a': // Modifier register m0-m1.
Info.setAllowsRegister();
return true;
case 's':
// Relocatable constant.
return true;
}
return false;
}
void getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const override;
bool isCLZForZeroUndef() const override { return false; }
bool hasFeature(StringRef Feature) const override;
bool
initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
StringRef CPU,
const std::vector<std::string> &FeaturesVec) const override;
bool handleTargetFeatures(std::vector<std::string> &Features,
DiagnosticsEngine &Diags) override;
BuiltinVaListKind getBuiltinVaListKind() const override {
if (getTriple().isMusl())
return TargetInfo::HexagonBuiltinVaList;
return TargetInfo::CharPtrBuiltinVaList;
}
ArrayRef<const char *> getGCCRegNames() const override;
ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
const char *getClobbers() const override { return ""; }
static const char *getHexagonCPUSuffix(StringRef Name);
bool isValidCPUName(StringRef Name) const override {
return getHexagonCPUSuffix(Name);
}
void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
bool setCPU(const std::string &Name) override {
if (!isValidCPUName(Name))
return false;
CPU = Name;
return true;
}
int getEHDataRegisterNumber(unsigned RegNo) const override {
return RegNo < 2 ? RegNo : -1;
}
bool isTinyCore() const {
// We can write more stricter checks later.
return CPU.find('t') != std::string::npos;
}
bool hasBitIntType() const override { return true; }
};
} // namespace targets
} // namespace clang
#endif // LLVM_CLANG_LIB_BASIC_TARGETS_HEXAGON_H
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