// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/runtime/runtime-utils.h"
#include "src/arguments.h"
#include "src/base/macros.h"
#include "src/conversions.h"
#include "src/factory.h"
#include "src/objects-inl.h"
// Implement Single Instruction Multiple Data (SIMD) operations as defined in
// the SIMD.js draft spec:
// http://littledan.github.io/simd.html
namespace v8 {
namespace internal {
namespace {
// Functions to convert Numbers to SIMD component types.
template <typename T, typename F>
static bool CanCast(F from) {
// A float can't represent 2^31 - 1 or 2^32 - 1 exactly, so promote the limits
// to double. Otherwise, the limit is truncated and numbers like 2^31 or 2^32
// get through, causing any static_cast to be undefined.
from = trunc(from);
return from >= static_cast<double>(std::numeric_limits<T>::min()) &&
from <= static_cast<double>(std::numeric_limits<T>::max());
}
// Explicitly specialize for conversions to float, which always succeed.
template <>
bool CanCast<float>(int32_t from) {
return true;
}
template <>
bool CanCast<float>(uint32_t from) {
return true;
}
template <typename T>
static T ConvertNumber(double number);
template <>
float ConvertNumber<float>(double number) {
return DoubleToFloat32(number);
}
template <>
int32_t ConvertNumber<int32_t>(double number) {
return DoubleToInt32(number);
}
template <>
uint32_t ConvertNumber<uint32_t>(double number) {
return DoubleToUint32(number);
}
template <>
int16_t ConvertNumber<int16_t>(double number) {
return static_cast<int16_t>(DoubleToInt32(number));
}
template <>
uint16_t ConvertNumber<uint16_t>(double number) {
return static_cast<uint16_t>(DoubleToUint32(number));
}
template <>
int8_t ConvertNumber<int8_t>(double number) {
return static_cast<int8_t>(DoubleToInt32(number));
}
template <>
uint8_t ConvertNumber<uint8_t>(double number) {
return static_cast<uint8_t>(DoubleToUint32(number));
}
// TODO(bbudge): Make this consistent with SIMD instruction results.
inline float RecipApprox(float a) { return 1.0f / a; }
// TODO(bbudge): Make this consistent with SIMD instruction results.
inline float RecipSqrtApprox(float a) { return 1.0f / std::sqrt(a); }
// Saturating addition for int16_t and int8_t.
template <typename T>
inline T AddSaturate(T a, T b) {
const T max = std::numeric_limits<T>::max();
const T min = std::numeric_limits<T>::min();
int32_t result = a + b;
if (result > max) return max;
if (result < min) return min;
return result;
}
// Saturating subtraction for int16_t and int8_t.
template <typename T>
inline T SubSaturate(T a, T b) {
const T max = std::numeric_limits<T>::max();
const T min = std::numeric_limits<T>::min();
int32_t result = a - b;
if (result > max) return max;
if (result < min) return min;
return result;
}
inline float Min(float a, float b) {
if (a < b) return a;
if (a > b) return b;
if (a == b) return std::signbit(a) ? a : b;
return std::numeric_limits<float>::quiet_NaN();
}
inline float Max(float a, float b) {
if (a > b) return a;
if (a < b) return b;
if (a == b) return std::signbit(b) ? a : b;
return std::numeric_limits<float>::quiet_NaN();
}
inline float MinNumber(float a, float b) {
if (std::isnan(a)) return b;
if (std::isnan(b)) return a;
return Min(a, b);
}
inline float MaxNumber(float a, float b) {
if (std::isnan(a)) return b;
if (std::isnan(b)) return a;
return Max(a, b);
}
} // namespace
//-------------------------------------------------------------------
// SIMD helper functions.
RUNTIME_FUNCTION(Runtime_IsSimdValue) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
return isolate->heap()->ToBoolean(args[0]->IsSimd128Value());
}
//-------------------------------------------------------------------
// Utility macros.
// TODO(gdeepti): Fix to use ToNumber conversion once polyfill is updated.
#define CONVERT_SIMD_LANE_ARG_CHECKED(name, index, lanes) \
Handle<Object> name_object = args.at<Object>(index); \
if (!name_object->IsNumber()) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewTypeError(MessageTemplate::kInvalidSimdIndex)); \
} \
double number = name_object->Number(); \
if (number < 0 || number >= lanes || !IsInt32Double(number)) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewRangeError(MessageTemplate::kInvalidSimdIndex)); \
} \
uint32_t name = static_cast<uint32_t>(number);
#define CONVERT_SIMD_ARG_HANDLE_THROW(Type, name, index) \
Handle<Type> name; \
if (args[index]->Is##Type()) { \
name = args.at<Type>(index); \
} else { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewTypeError(MessageTemplate::kInvalidSimdOperation)); \
}
#define SIMD_UNARY_OP(type, lane_type, lane_count, op, result) \
static const int kLaneCount = lane_count; \
DCHECK(args.length() == 1); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = op(a->get_lane(i)); \
} \
Handle<type> result = isolate->factory()->New##type(lanes);
#define SIMD_BINARY_OP(type, lane_type, lane_count, op, result) \
static const int kLaneCount = lane_count; \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, b, 1); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = op(a->get_lane(i), b->get_lane(i)); \
} \
Handle<type> result = isolate->factory()->New##type(lanes);
#define SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, op, result) \
static const int kLaneCount = lane_count; \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, b, 1); \
bool lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = a->get_lane(i) op b->get_lane(i); \
} \
Handle<bool_type> result = isolate->factory()->New##bool_type(lanes);
//-------------------------------------------------------------------
// Common functions.
#define GET_NUMERIC_ARG(lane_type, name, index) \
Handle<Object> a; \
ASSIGN_RETURN_FAILURE_ON_EXCEPTION( \
isolate, a, Object::ToNumber(args.at<Object>(index))); \
name = ConvertNumber<lane_type>(a->Number());
#define GET_BOOLEAN_ARG(lane_type, name, index) \
name = args[index]->BooleanValue();
#define SIMD_ALL_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, 4, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Int32x4, int32_t, 4, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Uint32x4, uint32_t, 4, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Bool32x4, bool, 4, ToBoolean, GET_BOOLEAN_ARG) \
FUNCTION(Int16x8, int16_t, 8, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Uint16x8, uint16_t, 8, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Bool16x8, bool, 8, ToBoolean, GET_BOOLEAN_ARG) \
FUNCTION(Int8x16, int8_t, 16, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Uint8x16, uint8_t, 16, NewNumber, GET_NUMERIC_ARG) \
FUNCTION(Bool8x16, bool, 16, ToBoolean, GET_BOOLEAN_ARG)
#define SIMD_CREATE_FUNCTION(type, lane_type, lane_count, extract, replace) \
RUNTIME_FUNCTION(Runtime_Create##type) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == kLaneCount); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
replace(lane_type, lanes[i], i) \
} \
return *isolate->factory()->New##type(lanes); \
}
#define SIMD_EXTRACT_FUNCTION(type, lane_type, lane_count, extract, replace) \
RUNTIME_FUNCTION(Runtime_##type##ExtractLane) { \
HandleScope scope(isolate); \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SIMD_LANE_ARG_CHECKED(lane, 1, lane_count); \
return *isolate->factory()->extract(a->get_lane(lane)); \
}
#define SIMD_REPLACE_FUNCTION(type, lane_type, lane_count, extract, replace) \
RUNTIME_FUNCTION(Runtime_##type##ReplaceLane) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 3); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, simd, 0); \
CONVERT_SIMD_LANE_ARG_CHECKED(lane, 1, kLaneCount); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = simd->get_lane(i); \
} \
replace(lane_type, lanes[lane], 2); \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
#define SIMD_CHECK_FUNCTION(type, lane_type, lane_count, extract, replace) \
RUNTIME_FUNCTION(Runtime_##type##Check) { \
HandleScope scope(isolate); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
return *a; \
}
#define SIMD_SWIZZLE_FUNCTION(type, lane_type, lane_count, extract, replace) \
RUNTIME_FUNCTION(Runtime_##type##Swizzle) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 1 + kLaneCount); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
CONVERT_SIMD_LANE_ARG_CHECKED(index, i + 1, kLaneCount); \
lanes[i] = a->get_lane(index); \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
#define SIMD_SHUFFLE_FUNCTION(type, lane_type, lane_count, extract, replace) \
RUNTIME_FUNCTION(Runtime_##type##Shuffle) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 2 + kLaneCount); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, b, 1); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
CONVERT_SIMD_LANE_ARG_CHECKED(index, i + 2, kLaneCount * 2); \
lanes[i] = index < kLaneCount ? a->get_lane(index) \
: b->get_lane(index - kLaneCount); \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
SIMD_ALL_TYPES(SIMD_CREATE_FUNCTION)
SIMD_ALL_TYPES(SIMD_EXTRACT_FUNCTION)
SIMD_ALL_TYPES(SIMD_REPLACE_FUNCTION)
SIMD_ALL_TYPES(SIMD_CHECK_FUNCTION)
SIMD_ALL_TYPES(SIMD_SWIZZLE_FUNCTION)
SIMD_ALL_TYPES(SIMD_SHUFFLE_FUNCTION)
//-------------------------------------------------------------------
// Float-only functions.
#define SIMD_ABS_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Abs) { \
HandleScope scope(isolate); \
SIMD_UNARY_OP(type, lane_type, lane_count, std::abs, result); \
return *result; \
}
#define SIMD_SQRT_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Sqrt) { \
HandleScope scope(isolate); \
SIMD_UNARY_OP(type, lane_type, lane_count, std::sqrt, result); \
return *result; \
}
#define SIMD_RECIP_APPROX_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##RecipApprox) { \
HandleScope scope(isolate); \
SIMD_UNARY_OP(type, lane_type, lane_count, RecipApprox, result); \
return *result; \
}
#define SIMD_RECIP_SQRT_APPROX_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##RecipSqrtApprox) { \
HandleScope scope(isolate); \
SIMD_UNARY_OP(type, lane_type, lane_count, RecipSqrtApprox, result); \
return *result; \
}
#define BINARY_DIV(a, b) (a) / (b)
#define SIMD_DIV_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Div) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_DIV, result); \
return *result; \
}
#define SIMD_MINNUM_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##MinNum) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, MinNumber, result); \
return *result; \
}
#define SIMD_MAXNUM_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##MaxNum) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, MaxNumber, result); \
return *result; \
}
SIMD_ABS_FUNCTION(Float32x4, float, 4)
SIMD_SQRT_FUNCTION(Float32x4, float, 4)
SIMD_RECIP_APPROX_FUNCTION(Float32x4, float, 4)
SIMD_RECIP_SQRT_APPROX_FUNCTION(Float32x4, float, 4)
SIMD_DIV_FUNCTION(Float32x4, float, 4)
SIMD_MINNUM_FUNCTION(Float32x4, float, 4)
SIMD_MAXNUM_FUNCTION(Float32x4, float, 4)
//-------------------------------------------------------------------
// Int-only functions.
#define SIMD_INT_TYPES(FUNCTION) \
FUNCTION(Int32x4, int32_t, 32, 4) \
FUNCTION(Int16x8, int16_t, 16, 8) \
FUNCTION(Int8x16, int8_t, 8, 16)
#define SIMD_UINT_TYPES(FUNCTION) \
FUNCTION(Uint32x4, uint32_t, 32, 4) \
FUNCTION(Uint16x8, uint16_t, 16, 8) \
FUNCTION(Uint8x16, uint8_t, 8, 16)
#define CONVERT_SHIFT_ARG_CHECKED(name, index) \
Handle<Object> name_object = args.at<Object>(index); \
if (!name_object->IsNumber()) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewTypeError(MessageTemplate::kInvalidSimdOperation)); \
} \
int32_t signed_shift = 0; \
args[index]->ToInt32(&signed_shift); \
uint32_t name = bit_cast<uint32_t>(signed_shift);
#define SIMD_LSL_FUNCTION(type, lane_type, lane_bits, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##ShiftLeftByScalar) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SHIFT_ARG_CHECKED(shift, 1); \
lane_type lanes[kLaneCount] = {0}; \
shift &= lane_bits - 1; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = a->get_lane(i) << shift; \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
#define SIMD_LSR_FUNCTION(type, lane_type, lane_bits, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##ShiftRightByScalar) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SHIFT_ARG_CHECKED(shift, 1); \
lane_type lanes[kLaneCount] = {0}; \
shift &= lane_bits - 1; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = static_cast<lane_type>(bit_cast<lane_type>(a->get_lane(i)) >> \
shift); \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
#define SIMD_ASR_FUNCTION(type, lane_type, lane_bits, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##ShiftRightByScalar) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
CONVERT_SHIFT_ARG_CHECKED(shift, 1); \
shift &= lane_bits - 1; \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
int64_t shifted = static_cast<int64_t>(a->get_lane(i)) >> shift; \
lanes[i] = static_cast<lane_type>(shifted); \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
SIMD_INT_TYPES(SIMD_LSL_FUNCTION)
SIMD_UINT_TYPES(SIMD_LSL_FUNCTION)
SIMD_INT_TYPES(SIMD_ASR_FUNCTION)
SIMD_UINT_TYPES(SIMD_LSR_FUNCTION)
//-------------------------------------------------------------------
// Bool-only functions.
#define SIMD_BOOL_TYPES(FUNCTION) \
FUNCTION(Bool32x4, 4) \
FUNCTION(Bool16x8, 8) \
FUNCTION(Bool8x16, 16)
#define SIMD_ANY_FUNCTION(type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##AnyTrue) { \
HandleScope scope(isolate); \
DCHECK(args.length() == 1); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
bool result = false; \
for (int i = 0; i < lane_count; i++) { \
if (a->get_lane(i)) { \
result = true; \
break; \
} \
} \
return isolate->heap()->ToBoolean(result); \
}
#define SIMD_ALL_FUNCTION(type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##AllTrue) { \
HandleScope scope(isolate); \
DCHECK(args.length() == 1); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 0); \
bool result = true; \
for (int i = 0; i < lane_count; i++) { \
if (!a->get_lane(i)) { \
result = false; \
break; \
} \
} \
return isolate->heap()->ToBoolean(result); \
}
SIMD_BOOL_TYPES(SIMD_ANY_FUNCTION)
SIMD_BOOL_TYPES(SIMD_ALL_FUNCTION)
//-------------------------------------------------------------------
// Small Int-only functions.
#define SIMD_SMALL_INT_TYPES(FUNCTION) \
FUNCTION(Int16x8, int16_t, 8) \
FUNCTION(Uint16x8, uint16_t, 8) \
FUNCTION(Int8x16, int8_t, 16) \
FUNCTION(Uint8x16, uint8_t, 16)
#define SIMD_ADD_SATURATE_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##AddSaturate) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, AddSaturate, result); \
return *result; \
}
#define BINARY_SUB(a, b) (a) - (b)
#define SIMD_SUB_SATURATE_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##SubSaturate) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, SubSaturate, result); \
return *result; \
}
SIMD_SMALL_INT_TYPES(SIMD_ADD_SATURATE_FUNCTION)
SIMD_SMALL_INT_TYPES(SIMD_SUB_SATURATE_FUNCTION)
//-------------------------------------------------------------------
// Numeric functions.
#define SIMD_NUMERIC_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, 4) \
FUNCTION(Int32x4, int32_t, 4) \
FUNCTION(Uint32x4, uint32_t, 4) \
FUNCTION(Int16x8, int16_t, 8) \
FUNCTION(Uint16x8, uint16_t, 8) \
FUNCTION(Int8x16, int8_t, 16) \
FUNCTION(Uint8x16, uint8_t, 16)
#define BINARY_ADD(a, b) (a) + (b)
#define SIMD_ADD_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Add) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_ADD, result); \
return *result; \
}
#define BINARY_SUB(a, b) (a) - (b)
#define SIMD_SUB_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Sub) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_SUB, result); \
return *result; \
}
#define BINARY_MUL(a, b) (a) * (b)
#define SIMD_MUL_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Mul) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_MUL, result); \
return *result; \
}
#define SIMD_MIN_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Min) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, Min, result); \
return *result; \
}
#define SIMD_MAX_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Max) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, Max, result); \
return *result; \
}
SIMD_NUMERIC_TYPES(SIMD_ADD_FUNCTION)
SIMD_NUMERIC_TYPES(SIMD_SUB_FUNCTION)
SIMD_NUMERIC_TYPES(SIMD_MUL_FUNCTION)
SIMD_NUMERIC_TYPES(SIMD_MIN_FUNCTION)
SIMD_NUMERIC_TYPES(SIMD_MAX_FUNCTION)
//-------------------------------------------------------------------
// Relational functions.
#define SIMD_RELATIONAL_TYPES(FUNCTION) \
FUNCTION(Float32x4, Bool32x4, 4) \
FUNCTION(Int32x4, Bool32x4, 4) \
FUNCTION(Uint32x4, Bool32x4, 4) \
FUNCTION(Int16x8, Bool16x8, 8) \
FUNCTION(Uint16x8, Bool16x8, 8) \
FUNCTION(Int8x16, Bool8x16, 16) \
FUNCTION(Uint8x16, Bool8x16, 16)
#define SIMD_EQUALITY_TYPES(FUNCTION) \
SIMD_RELATIONAL_TYPES(FUNCTION) \
FUNCTION(Bool32x4, Bool32x4, 4) \
FUNCTION(Bool16x8, Bool16x8, 8) \
FUNCTION(Bool8x16, Bool8x16, 16)
#define SIMD_EQUAL_FUNCTION(type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Equal) { \
HandleScope scope(isolate); \
SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, ==, result); \
return *result; \
}
#define SIMD_NOT_EQUAL_FUNCTION(type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##NotEqual) { \
HandleScope scope(isolate); \
SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, !=, result); \
return *result; \
}
SIMD_EQUALITY_TYPES(SIMD_EQUAL_FUNCTION)
SIMD_EQUALITY_TYPES(SIMD_NOT_EQUAL_FUNCTION)
#define SIMD_LESS_THAN_FUNCTION(type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##LessThan) { \
HandleScope scope(isolate); \
SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, <, result); \
return *result; \
}
#define SIMD_LESS_THAN_OR_EQUAL_FUNCTION(type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##LessThanOrEqual) { \
HandleScope scope(isolate); \
SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, <=, result); \
return *result; \
}
#define SIMD_GREATER_THAN_FUNCTION(type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##GreaterThan) { \
HandleScope scope(isolate); \
SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, >, result); \
return *result; \
}
#define SIMD_GREATER_THAN_OR_EQUAL_FUNCTION(type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##GreaterThanOrEqual) { \
HandleScope scope(isolate); \
SIMD_RELATIONAL_OP(type, bool_type, lane_count, a, b, >=, result); \
return *result; \
}
SIMD_RELATIONAL_TYPES(SIMD_LESS_THAN_FUNCTION)
SIMD_RELATIONAL_TYPES(SIMD_LESS_THAN_OR_EQUAL_FUNCTION)
SIMD_RELATIONAL_TYPES(SIMD_GREATER_THAN_FUNCTION)
SIMD_RELATIONAL_TYPES(SIMD_GREATER_THAN_OR_EQUAL_FUNCTION)
//-------------------------------------------------------------------
// Logical functions.
#define SIMD_LOGICAL_TYPES(FUNCTION) \
FUNCTION(Int32x4, int32_t, 4, _INT) \
FUNCTION(Uint32x4, uint32_t, 4, _INT) \
FUNCTION(Int16x8, int16_t, 8, _INT) \
FUNCTION(Uint16x8, uint16_t, 8, _INT) \
FUNCTION(Int8x16, int8_t, 16, _INT) \
FUNCTION(Uint8x16, uint8_t, 16, _INT) \
FUNCTION(Bool32x4, bool, 4, _BOOL) \
FUNCTION(Bool16x8, bool, 8, _BOOL) \
FUNCTION(Bool8x16, bool, 16, _BOOL)
#define BINARY_AND_INT(a, b) (a) & (b)
#define BINARY_AND_BOOL(a, b) (a) && (b)
#define SIMD_AND_FUNCTION(type, lane_type, lane_count, op) \
RUNTIME_FUNCTION(Runtime_##type##And) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_AND##op, result); \
return *result; \
}
#define BINARY_OR_INT(a, b) (a) | (b)
#define BINARY_OR_BOOL(a, b) (a) || (b)
#define SIMD_OR_FUNCTION(type, lane_type, lane_count, op) \
RUNTIME_FUNCTION(Runtime_##type##Or) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_OR##op, result); \
return *result; \
}
#define BINARY_XOR_INT(a, b) (a) ^ (b)
#define BINARY_XOR_BOOL(a, b) (a) != (b)
#define SIMD_XOR_FUNCTION(type, lane_type, lane_count, op) \
RUNTIME_FUNCTION(Runtime_##type##Xor) { \
HandleScope scope(isolate); \
SIMD_BINARY_OP(type, lane_type, lane_count, BINARY_XOR##op, result); \
return *result; \
}
#define UNARY_NOT_INT ~
#define UNARY_NOT_BOOL !
#define SIMD_NOT_FUNCTION(type, lane_type, lane_count, op) \
RUNTIME_FUNCTION(Runtime_##type##Not) { \
HandleScope scope(isolate); \
SIMD_UNARY_OP(type, lane_type, lane_count, UNARY_NOT##op, result); \
return *result; \
}
SIMD_LOGICAL_TYPES(SIMD_AND_FUNCTION)
SIMD_LOGICAL_TYPES(SIMD_OR_FUNCTION)
SIMD_LOGICAL_TYPES(SIMD_XOR_FUNCTION)
SIMD_LOGICAL_TYPES(SIMD_NOT_FUNCTION)
//-------------------------------------------------------------------
// Select functions.
#define SIMD_SELECT_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, Bool32x4, 4) \
FUNCTION(Int32x4, int32_t, Bool32x4, 4) \
FUNCTION(Uint32x4, uint32_t, Bool32x4, 4) \
FUNCTION(Int16x8, int16_t, Bool16x8, 8) \
FUNCTION(Uint16x8, uint16_t, Bool16x8, 8) \
FUNCTION(Int8x16, int8_t, Bool8x16, 16) \
FUNCTION(Uint8x16, uint8_t, Bool8x16, 16)
#define SIMD_SELECT_FUNCTION(type, lane_type, bool_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Select) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 3); \
CONVERT_SIMD_ARG_HANDLE_THROW(bool_type, mask, 0); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 1); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, b, 2); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = mask->get_lane(i) ? a->get_lane(i) : b->get_lane(i); \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
SIMD_SELECT_TYPES(SIMD_SELECT_FUNCTION)
//-------------------------------------------------------------------
// Signed / unsigned functions.
#define SIMD_SIGNED_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, 4) \
FUNCTION(Int32x4, int32_t, 4) \
FUNCTION(Int16x8, int16_t, 8) \
FUNCTION(Int8x16, int8_t, 16)
#define SIMD_NEG_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Neg) { \
HandleScope scope(isolate); \
SIMD_UNARY_OP(type, lane_type, lane_count, -, result); \
return *result; \
}
SIMD_SIGNED_TYPES(SIMD_NEG_FUNCTION)
//-------------------------------------------------------------------
// Casting functions.
#define SIMD_FROM_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, 4, Int32x4, int32_t) \
FUNCTION(Float32x4, float, 4, Uint32x4, uint32_t) \
FUNCTION(Int32x4, int32_t, 4, Float32x4, float) \
FUNCTION(Int32x4, int32_t, 4, Uint32x4, uint32_t) \
FUNCTION(Uint32x4, uint32_t, 4, Float32x4, float) \
FUNCTION(Uint32x4, uint32_t, 4, Int32x4, int32_t) \
FUNCTION(Int16x8, int16_t, 8, Uint16x8, uint16_t) \
FUNCTION(Uint16x8, uint16_t, 8, Int16x8, int16_t) \
FUNCTION(Int8x16, int8_t, 16, Uint8x16, uint8_t) \
FUNCTION(Uint8x16, uint8_t, 16, Int8x16, int8_t)
#define SIMD_FROM_FUNCTION(type, lane_type, lane_count, from_type, from_ctype) \
RUNTIME_FUNCTION(Runtime_##type##From##from_type) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 1); \
CONVERT_SIMD_ARG_HANDLE_THROW(from_type, a, 0); \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
from_ctype a_value = a->get_lane(i); \
if (a_value != a_value || !CanCast<lane_type>(a_value)) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewRangeError(MessageTemplate::kInvalidSimdLaneValue)); \
} \
lanes[i] = static_cast<lane_type>(a_value); \
} \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
SIMD_FROM_TYPES(SIMD_FROM_FUNCTION)
#define SIMD_FROM_BITS_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, 4, Int32x4) \
FUNCTION(Float32x4, float, 4, Uint32x4) \
FUNCTION(Float32x4, float, 4, Int16x8) \
FUNCTION(Float32x4, float, 4, Uint16x8) \
FUNCTION(Float32x4, float, 4, Int8x16) \
FUNCTION(Float32x4, float, 4, Uint8x16) \
FUNCTION(Int32x4, int32_t, 4, Float32x4) \
FUNCTION(Int32x4, int32_t, 4, Uint32x4) \
FUNCTION(Int32x4, int32_t, 4, Int16x8) \
FUNCTION(Int32x4, int32_t, 4, Uint16x8) \
FUNCTION(Int32x4, int32_t, 4, Int8x16) \
FUNCTION(Int32x4, int32_t, 4, Uint8x16) \
FUNCTION(Uint32x4, uint32_t, 4, Float32x4) \
FUNCTION(Uint32x4, uint32_t, 4, Int32x4) \
FUNCTION(Uint32x4, uint32_t, 4, Int16x8) \
FUNCTION(Uint32x4, uint32_t, 4, Uint16x8) \
FUNCTION(Uint32x4, uint32_t, 4, Int8x16) \
FUNCTION(Uint32x4, uint32_t, 4, Uint8x16) \
FUNCTION(Int16x8, int16_t, 8, Float32x4) \
FUNCTION(Int16x8, int16_t, 8, Int32x4) \
FUNCTION(Int16x8, int16_t, 8, Uint32x4) \
FUNCTION(Int16x8, int16_t, 8, Uint16x8) \
FUNCTION(Int16x8, int16_t, 8, Int8x16) \
FUNCTION(Int16x8, int16_t, 8, Uint8x16) \
FUNCTION(Uint16x8, uint16_t, 8, Float32x4) \
FUNCTION(Uint16x8, uint16_t, 8, Int32x4) \
FUNCTION(Uint16x8, uint16_t, 8, Uint32x4) \
FUNCTION(Uint16x8, uint16_t, 8, Int16x8) \
FUNCTION(Uint16x8, uint16_t, 8, Int8x16) \
FUNCTION(Uint16x8, uint16_t, 8, Uint8x16) \
FUNCTION(Int8x16, int8_t, 16, Float32x4) \
FUNCTION(Int8x16, int8_t, 16, Int32x4) \
FUNCTION(Int8x16, int8_t, 16, Uint32x4) \
FUNCTION(Int8x16, int8_t, 16, Int16x8) \
FUNCTION(Int8x16, int8_t, 16, Uint16x8) \
FUNCTION(Int8x16, int8_t, 16, Uint8x16) \
FUNCTION(Uint8x16, uint8_t, 16, Float32x4) \
FUNCTION(Uint8x16, uint8_t, 16, Int32x4) \
FUNCTION(Uint8x16, uint8_t, 16, Uint32x4) \
FUNCTION(Uint8x16, uint8_t, 16, Int16x8) \
FUNCTION(Uint8x16, uint8_t, 16, Uint16x8) \
FUNCTION(Uint8x16, uint8_t, 16, Int8x16)
#define SIMD_FROM_BITS_FUNCTION(type, lane_type, lane_count, from_type) \
RUNTIME_FUNCTION(Runtime_##type##From##from_type##Bits) { \
static const int kLaneCount = lane_count; \
HandleScope scope(isolate); \
DCHECK(args.length() == 1); \
CONVERT_SIMD_ARG_HANDLE_THROW(from_type, a, 0); \
lane_type lanes[kLaneCount]; \
a->CopyBits(lanes); \
Handle<type> result = isolate->factory()->New##type(lanes); \
return *result; \
}
SIMD_FROM_BITS_TYPES(SIMD_FROM_BITS_FUNCTION)
//-------------------------------------------------------------------
// Load and Store functions.
#define SIMD_LOADN_STOREN_TYPES(FUNCTION) \
FUNCTION(Float32x4, float, 4) \
FUNCTION(Int32x4, int32_t, 4) \
FUNCTION(Uint32x4, uint32_t, 4)
#define SIMD_COERCE_INDEX(name, i) \
Handle<Object> length_object, number_object; \
ASSIGN_RETURN_FAILURE_ON_EXCEPTION( \
isolate, length_object, Object::ToLength(isolate, args.at<Object>(i))); \
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, number_object, \
Object::ToNumber(args.at<Object>(i))); \
if (number_object->Number() != length_object->Number()) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewTypeError(MessageTemplate::kInvalidSimdIndex)); \
} \
int32_t name = number_object->Number();
// Common Load and Store Functions
#define SIMD_LOAD(type, lane_type, lane_count, count, result) \
static const int kLaneCount = lane_count; \
DCHECK(args.length() == 2); \
CONVERT_SIMD_ARG_HANDLE_THROW(JSTypedArray, tarray, 0); \
SIMD_COERCE_INDEX(index, 1); \
size_t bpe = tarray->element_size(); \
uint32_t bytes = count * sizeof(lane_type); \
size_t byte_length = NumberToSize(isolate, tarray->byte_length()); \
if (index < 0 || index * bpe + bytes > byte_length) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewRangeError(MessageTemplate::kInvalidSimdIndex)); \
} \
size_t tarray_offset = NumberToSize(isolate, tarray->byte_offset()); \
uint8_t* tarray_base = \
static_cast<uint8_t*>(tarray->GetBuffer()->backing_store()) + \
tarray_offset; \
lane_type lanes[kLaneCount] = {0}; \
memcpy(lanes, tarray_base + index * bpe, bytes); \
Handle<type> result = isolate->factory()->New##type(lanes);
#define SIMD_STORE(type, lane_type, lane_count, count, a) \
static const int kLaneCount = lane_count; \
DCHECK(args.length() == 3); \
CONVERT_SIMD_ARG_HANDLE_THROW(JSTypedArray, tarray, 0); \
CONVERT_SIMD_ARG_HANDLE_THROW(type, a, 2); \
SIMD_COERCE_INDEX(index, 1); \
size_t bpe = tarray->element_size(); \
uint32_t bytes = count * sizeof(lane_type); \
size_t byte_length = NumberToSize(isolate, tarray->byte_length()); \
if (index < 0 || byte_length < index * bpe + bytes) { \
THROW_NEW_ERROR_RETURN_FAILURE( \
isolate, NewRangeError(MessageTemplate::kInvalidSimdIndex)); \
} \
size_t tarray_offset = NumberToSize(isolate, tarray->byte_offset()); \
uint8_t* tarray_base = \
static_cast<uint8_t*>(tarray->GetBuffer()->backing_store()) + \
tarray_offset; \
lane_type lanes[kLaneCount]; \
for (int i = 0; i < kLaneCount; i++) { \
lanes[i] = a->get_lane(i); \
} \
memcpy(tarray_base + index * bpe, lanes, bytes);
#define SIMD_LOAD_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Load) { \
HandleScope scope(isolate); \
SIMD_LOAD(type, lane_type, lane_count, lane_count, result); \
return *result; \
}
#define SIMD_LOAD1_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Load1) { \
HandleScope scope(isolate); \
SIMD_LOAD(type, lane_type, lane_count, 1, result); \
return *result; \
}
#define SIMD_LOAD2_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Load2) { \
HandleScope scope(isolate); \
SIMD_LOAD(type, lane_type, lane_count, 2, result); \
return *result; \
}
#define SIMD_LOAD3_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Load3) { \
HandleScope scope(isolate); \
SIMD_LOAD(type, lane_type, lane_count, 3, result); \
return *result; \
}
#define SIMD_STORE_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Store) { \
HandleScope scope(isolate); \
SIMD_STORE(type, lane_type, lane_count, lane_count, a); \
return *a; \
}
#define SIMD_STORE1_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Store1) { \
HandleScope scope(isolate); \
SIMD_STORE(type, lane_type, lane_count, 1, a); \
return *a; \
}
#define SIMD_STORE2_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Store2) { \
HandleScope scope(isolate); \
SIMD_STORE(type, lane_type, lane_count, 2, a); \
return *a; \
}
#define SIMD_STORE3_FUNCTION(type, lane_type, lane_count) \
RUNTIME_FUNCTION(Runtime_##type##Store3) { \
HandleScope scope(isolate); \
SIMD_STORE(type, lane_type, lane_count, 3, a); \
return *a; \
}
SIMD_NUMERIC_TYPES(SIMD_LOAD_FUNCTION)
SIMD_LOADN_STOREN_TYPES(SIMD_LOAD1_FUNCTION)
SIMD_LOADN_STOREN_TYPES(SIMD_LOAD2_FUNCTION)
SIMD_LOADN_STOREN_TYPES(SIMD_LOAD3_FUNCTION)
SIMD_NUMERIC_TYPES(SIMD_STORE_FUNCTION)
SIMD_LOADN_STOREN_TYPES(SIMD_STORE1_FUNCTION)
SIMD_LOADN_STOREN_TYPES(SIMD_STORE2_FUNCTION)
SIMD_LOADN_STOREN_TYPES(SIMD_STORE3_FUNCTION)
//-------------------------------------------------------------------
} // namespace internal
} // namespace v8