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#ifndef CPU_AARCH64_VMSTORAGE_AARCH64_INLINE_HPP
#define CPU_AARCH64_VMSTORAGE_AARCH64_INLINE_HPP
#include <cstdint>
#include "asm/register.hpp"
// keep in sync with jdk/internal/foreign/abi/aarch64/AArch64Architecture
enum class StorageType : int8_t {
INTEGER = 0 ,
VECTOR = 1 ,
STACK = 2 ,
PLACEHOLDER = 3 ,
// special locations used only by native code
FRAME_DATA = PLACEHOLDER + 1 ,
INVALID = -1
};
// need to define this before constructing VMStorage (below)
constexpr inline bool VMStorage::is_reg(StorageType type) {
return type == StorageType::INTEGER || type == StorageType::VECTOR;
}
constexpr inline StorageType VMStorage::stack_type() { return StorageType::STACK; }
constexpr inline StorageType VMStorage::placeholder_type() { return StorageType::PLACEHOLDER; }
constexpr inline StorageType VMStorage::frame_data_type() { return StorageType::FRAME_DATA; }
constexpr uint16_t REG64_MASK = 0 b0000000000000001;
constexpr uint16_t V128_MASK = 0 b0000000000000001;
inline Register as_Register(VMStorage vms) {
assert(vms.type() == StorageType::INTEGER, "not the right type" );
return ::as_Register(vms.index());
}
inline FloatRegister as_FloatRegister(VMStorage vms) {
assert(vms.type() == StorageType::VECTOR, "not the right type" );
return ::as_FloatRegister(vms.index());
}
constexpr inline VMStorage as_VMStorage(Register reg) {
return VMStorage::reg_storage(StorageType::INTEGER, REG64_MASK, reg->encoding());
}
constexpr inline VMStorage as_VMStorage(FloatRegister reg) {
return VMStorage::reg_storage(StorageType::VECTOR, V128_MASK, reg->encoding());
}
inline VMStorage as_VMStorage(VMReg reg) {
if (reg->is_Register()) {
return as_VMStorage(reg->as_Register());
} else if (reg->is_FloatRegister()) {
return as_VMStorage(reg->as_FloatRegister());
} else if (reg->is_stack()) {
return VMStorage::stack_storage(reg);
} else if (!reg->is_valid()) {
return VMStorage::invalid();
}
ShouldNotReachHere();
return VMStorage::invalid();
}
#endif // CPU_AARCH64_VMSTORAGE_AARCH64_INLINE_HPP
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