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/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Benjamin Segovia <benjamin.segovia@intel.com>
*/
/**
* \file value.hpp
*
* \author Benjamin Segovia <benjamin.segovia@intel.com>
*/
#ifndef __GBE_IR_IMMEDIATE_HPP__
#define __GBE_IR_IMMEDIATE_HPP__
#include <string.h>
#include "ir/type.hpp"
#include "sys/platform.hpp"
namespace gbe {
namespace ir {
/*! The value as stored in the instruction */
class Immediate
{
public:
INLINE Immediate(void) {}
Type getType(void) const {
return type;
}
uint32_t getTypeSize(void) const {
switch(type) {
default:
GBE_ASSERT(0 && "Invalid immeidate type.\n");
case TYPE_BOOL:
case TYPE_S8:
case TYPE_U8: return 1;
case TYPE_S16:
case TYPE_U16: return 2;
case TYPE_FLOAT:
case TYPE_S32:
case TYPE_U32: return 4;
case TYPE_DOUBLE:
case TYPE_S64:
case TYPE_U64: return 8;
}
}
#define DECL_CONSTRUCTOR(TYPE, FIELD, IR_TYPE) \
Immediate(TYPE FIELD) { \
this->type = IR_TYPE; \
this->elemNum = 1; \
this->data.p = &defaultData; \
defaultData = 0ull; \
*this->data.FIELD = FIELD; \
}
DECL_CONSTRUCTOR(bool, b, TYPE_BOOL)
DECL_CONSTRUCTOR(int8_t, s8, TYPE_S8)
DECL_CONSTRUCTOR(uint8_t, u8, TYPE_U8)
DECL_CONSTRUCTOR(int16_t, s16, TYPE_S16)
DECL_CONSTRUCTOR(uint16_t, u16, TYPE_S16)
DECL_CONSTRUCTOR(int32_t, s32, TYPE_S32)
DECL_CONSTRUCTOR(uint32_t, u32, TYPE_S32)
DECL_CONSTRUCTOR(int64_t, s64, TYPE_S64)
DECL_CONSTRUCTOR(uint64_t, u64, TYPE_S64)
DECL_CONSTRUCTOR(float, f32, TYPE_FLOAT)
DECL_CONSTRUCTOR(double, f64, TYPE_DOUBLE)
#undef DECL_CONSTRUCTOR
#define DECL_CONSTRUCTOR(TYPE, FIELD, IR_TYPE, ELEMNUM) \
Immediate(TYPE *FIELD, uint32_t ELEMNUM) { \
this->type = IR_TYPE; \
this->elemNum = ELEMNUM; \
if (elemNum * ELEMNUM > 8) \
this->data.p = malloc(ELEMNUM * getTypeSize()); \
else \
this->data.p = &defaultData; \
defaultData = 0ull; \
memcpy(this->data.FIELD, FIELD, ELEMNUM * getTypeSize()); \
}
DECL_CONSTRUCTOR(bool, b, TYPE_BOOL, elemNum)
DECL_CONSTRUCTOR(int8_t, s8, TYPE_S8, elemNum)
DECL_CONSTRUCTOR(uint8_t, u8, TYPE_U8, elemNum)
DECL_CONSTRUCTOR(int16_t, s16, TYPE_S16, elemNum)
DECL_CONSTRUCTOR(uint16_t, u16, TYPE_S16, elemNum)
DECL_CONSTRUCTOR(int32_t, s32, TYPE_S32, elemNum)
DECL_CONSTRUCTOR(uint32_t, u32, TYPE_S32, elemNum)
DECL_CONSTRUCTOR(int64_t, s64, TYPE_S64, elemNum)
DECL_CONSTRUCTOR(uint64_t, u64, TYPE_S64, elemNum)
DECL_CONSTRUCTOR(float, f32, TYPE_FLOAT, elemNum)
DECL_CONSTRUCTOR(double, f64, TYPE_DOUBLE, elemNum)
#undef DECL_CONSTRUCTOR
int64_t getIntegerValue(void) const {
switch (type) {
default:
GBE_ASSERT(0 && "Invalid immediate type.\n");
case TYPE_BOOL: return *data.b;
case TYPE_S8: return *data.s8;
case TYPE_U8: return *data.u8;
case TYPE_S16: return *data.s16;
case TYPE_U16: return *data.u16;
case TYPE_S32: return *data.s32;
case TYPE_U32: return *data.u32;
case TYPE_S64: return *data.s64;
case TYPE_U64: return *data.u64;
}
}
float getFloatValue(void) const {
GBE_ASSERT(type == TYPE_FLOAT);
return *data.f32;
}
float asFloatValue(void) const {
GBE_ASSERT(type == TYPE_FLOAT || type == TYPE_U32 || type == TYPE_S32);
return *data.f32;
}
int64_t asIntegerValue(void) const {
GBE_ASSERT(elemNum == 1);
return *data.s64;
}
double getDoubleValue(void) const {
GBE_ASSERT(type == TYPE_DOUBLE);
return *data.f64;
}
Immediate(const Immediate & other) {
if (this != &other) {
this->type = other.type;
this->elemNum = other.elemNum;
if (other.data.p != &other.defaultData) {
this->data.p = malloc(other.elemNum * other.getTypeSize());
memcpy(this->data.p, other.data.p, other.elemNum * other.getTypeSize());
}
else {
this->defaultData = other.defaultData;
this->data.p = &this->defaultData;
}
}
}
Immediate & operator= (const Immediate & other) {
*this = Immediate(other);
return *this;
}
~Immediate() {
if (data.p != &defaultData) {
free(data.p);
data.p = NULL;
}
}
private:
union {
bool *b;
int8_t *s8;
uint8_t *u8;
int16_t *s16;
uint16_t *u16;
int32_t *s32;
uint32_t *u32;
int64_t *s64;
uint64_t *u64;
float *f32;
double *f64;
void *p;
} data; //!< Value to store
Type type; //!< Type of the value
uint32_t elemNum; //!< vector imm data type
uint64_t defaultData;
GBE_CLASS(Immediate);
};
/*! Compare two immediates */
INLINE bool operator< (const Immediate &imm0, const Immediate &imm1) {
if (imm0.getType() != imm1.getType())
return uint32_t(imm0.getType()) < uint32_t(imm1.getType());
else if (imm0.getType() == TYPE_FLOAT || imm0.getType() == TYPE_DOUBLE)
return imm0.asIntegerValue() < imm1.asIntegerValue();
else
return imm0.getIntegerValue() < imm1.getIntegerValue();
}
/*! A value is stored in a per-function vector. This is the index to it */
TYPE_SAFE(ImmediateIndex, uint16_t)
} /* namespace ir */
} /* namespace gbe */
#endif /* __GBE_IR_IMMEDIATE_HPP__ */
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